STAND-BY ENERGY SOURCE,IN PARTICULAR AN ELECTRICAL SUPPLY SOURCE

Abstract: The stand-by energy source, which can be put into service without any interruption or with a slight break only, in particular an electric supply source, consists of one or more electric rotary machines, a flywheel or some kind of an auxiliary energy source, e.g. a heat engine. Said units are engaged with three elements of a planetary gearing arrangement, having been arranged around the central shaft and two of them is additionally interconnected via a drive branch with infinitely variable transmission. Expediently, the electric rotary machine, which serves as a generator, when the voltage of the main drops out, is connected to the arm of the planetary gearing arrangement, while the flywheel is connected to one central gear of the planetary gearing arrangement and the auxiliary energy source is connected to the other central gear thereof. The machine requiring the continuous energy supply may be a generator, a pump or a mixer, as used in the chemical industry etc.

Description: STAND-BY ENERGY SOURCE, IN PARTICULAR AN ELECTRICAL SUPPLY SOURCE Technical field The invention relates to a stand-by energy sou in particular to an electric supply source for the con¬ tinuous substitution of the energy falling short, or onl with a short break, comprising one or more electric ro- tary machines, a flywheel and some kind of an auxiliary energy source, e.g. a heat engine. In particular in the recent years the number of the equipments, in which energy must be supplied absolut ly continuously or with an insignificant break only, has rapidly increased, for example, the operating rooms and tensive departments of hospitals, telephone centrals, .ot equipments of the tefeco munication, control equipments o energy supplying systems, as well as animal husbandries and poultry brooders in the agriculture. In accordance with the fields of application th demands are also of many, aspects. Computing centres, e.g do not allow even the slightest break, on the other hand in agricultural plants only a drop-out of more than 10-2 minutes is resulting in damages. In addition to the per- missible duration of the power cut, with the equipments to be supplied the requirements regarding to the single characteristics of current are also different. Background art To meet the different requirements, the most diverse solutions have been developed. Equipments with a higher demand are supplied with energy having been sto in an accumulator. In case of necessity the voltage is stabilized or transformed to the form needed. This solu¬ tion is, however, too expensive, in particular, when a high output is required, and when a long-lasting power cut with an infrequent occurence is to " be substituted in such, a manner. The costs of said equipments are further increased " by the fact that a continuous maintenance is imperative, at the same time - in spite of the most care- ful maintenance - the accumulators deteriorate in a few years. In case of less strict requirements, when a drop-out in the supply from the mains occurs, the operator puts the Diesel-motor of the auxiliary electrical source into operation and in such a manner energy supply may be ensured within some minutes. With this solution there is a considerable break anyhow, the duration of which depends on the reliability and skill of the operator. In the recent years equipements have been deve- loped, where the electromotor supplied from the mains is performing a steady rotary motion and simultaneously drives the flywheel. In case of a drop-out the engine functions as a generator and supplies energy to the equipment having been separated from the mains, at the same time by the quick locking of the frictional clutch it is connected to the system, whereby the s and-by Diesel-motor is start¬ ed. According to the relating publications the Diesel-mo¬ tor is reaching the nominal speed of rotation within a few hundredth seconds and takes over the drive of the generator from the flywheel. The disadvantage of this solution lies in that when locking the clutch, utmost high mechanical stresses arise, accordingly, the equip¬ ment endures such "quick starts" to a limited extent only. Disclosure of Invention The aim. of the invention is to develop the described stand-by energy source in such a manner that the drawbacks could be eliminated, simultaneously - by keeping up the advantageous features - further advantages could be achieved. In accordance with the invention the task set is 1 solved in such a manner that the elements of the stand-by energy source comprising one or more electric rotary ma*.- chines, flywheel and some kind of an auxiliary energy source, e.g. a heat engine, are engaged with three element 5 of the planetary gearing arrangement having been arranged around a central shaft, furtheron, two out of them are in¬ terconnected via a further drive with an infinitely vari¬ able transmission. With a preferred embodiment of the stand-by ener- 10 gy source according to the invention the electric rotary machine being connected to the mains, i.e. the electric ro tary machine to be supplied and also connected to the mains e.g. a generator, a pump, is engaged with the /carrier/ arm of the planetary gearing arrangement, the flywheel to 15 one of the central gears, while the auxiliary energy source is coupled to the other central gear. The role of the central gears may be interchanged. V/ith the stand-by energy source according to the invention the planetary gearing arrangement may be 20 engaged with the other elements in two different ways. One of the modes of engagement lies in that the electric rotary machine being connected to the mains and the ma¬ chine requiring a continuous drive - e.g. a generator, a pump or a mixer in the chemical industry - are connected 25 to the arm of the planetary gearing arrangement, while the flywheel is engaged with one of the central gears of the planetary gearing arrangement and the auxiliary ener¬ gy source with the other central gear. With the other mode of engagement the electric 30 rotary machine having been connected to the mains, i.e. the machine requiring continuous drive, e.g. a generator, a pump or a mixer, are engaged v/ith the central gear of the planetary gearing arrangement, the auxiliary energy source is connected to the arm of the planetary gearing ■ x.5 arrangement, while the flywheel engages with the other central gear of the planetary gearing arrangement. Brief Description of Drawings The invention will be described in details by means of some preferred embodiments, by the way of example, with reference to the accompanying drawings, wherei : Pig. 1 is showing the schematical diagram of the fundamental layout of the stand-by energy source according to the invention, Fig. 2 is showing the schematical diagram of the fundamental layout of another preferred embodiment of the stand-by energy source according to the invention, Pig. 3 shows the correlations between the velocity vectors, Pig. 4 is showing a further possible scheme of the planetary gearing arrangement, Pig. 4a is showing the correlations between the velocity vectors, P Piigg.. 5 ~ illustrates the kinematic, scheme of a pre¬ ferred embodiment, Pig. 5a is the schematical diagram of the embodiment according to Pig. 5, Pig. 5b illustrates the correlation between the velocity vectors, Pig. 6 is showing the front view of a further em¬ bodiment, Pig. 6a is the kinematic diagram of the embodiment according to Pig. 6, P Piigg.. ββbb is the schematical diagram belonging to Pig. 6, Pig. βc is showing the correlations between the velocity rectors, Pig. 7 is showing the kinematic diagram of a pre- ferred embodiment, Fig. 7a is the schematical diagram of the embodi¬ ment according to Fig. 7, Pig. 7b illustrates the correlations between the velocity vectors, Pig. 8 is showing the front view of an improved embodiment, Pig. 8a is the kinematic diagram of the embodiment according to Pig. 8, Pig. 8b is a schematical diagram, PPiigg.. 88cc is showing the correlations between the velocity vectors, Fig. 9 is showing the kinematic diagram of a pre¬ ferred embodiment, Pig. 9a is a shceraatical diagram Fig. 9b illustrates the correlations between the velocity vectors. Best Mode of Carrying out the Invention- Referring to Pig..1, with these embodiment the electric rotary machine having been connected to the mains, is the motor 1, performing a continuous rotary motion and by the intervention of the drive 2 it simultaneously drives the flywheel. The internal combustion motor 4 is connected to the same drive 2, however, whenever energy is supplied from the mains, the motor 4 is in a station- ar.y state. The equipment to be supplied is also connected to the mains. When supply from the mains is stopped, the clutch 6 opens, the motor 1 is transformed into a gene¬ rator and supplies the equipment 5. Change-over involves voltage drops of a certain extent and duration, the values of which depend on the clutch 6 and on the speed of the control of excitation of the rotary machine 1. If the equipment 5 does not allow the failure in energy supply resulting from change-over, two electric rotary machines /Pig. 2/ are to be incorporated into the equipment in such a manner that co-rotation of the shafts could be achieved. The rotary machine 10 is a motor having been connected to the mains, while the rotary machine 11 is a generator. In this case the generator 11 is supply¬ ing current to the equipment 5} accordingly, when acti- vating the auxiliary energy source, trouble cannot be ob¬ served. When the supply from the mains drops out, the drive 2 drives the rotary machine 10 resp. 11. At the be¬ ginning the energy needed for this purpose is delivered by the flywheel 3, simultaneously with the deceleration of the flywheel 3 the internal coumbustion motor 4 is gradually accelerated and takes over the energy supply to an ever increasing extent. In Fig. 1 and 2 two fundamental solutions serving for the continuous current supply are presented. The ge¬ nerator 11 may be substituted by any other machine requiring mechanical driving output, so e.g. a cooler-compressor, a dewatering pump, a mixer used in the chemical indust¬ ry, etc. Referring to Pig. 3 and 4 let us examine the manner in which the drive 2 establishes the necessary co-operation between the three shafts being connected _ to__the_drive. The drive 2 is a drive with an output branch having been assembled of the planetary gearing arrange- ment and a drive branch with an infinitely variable trans- mission. For this solution a bivariant planetary gearing arrangement is needed, that means that out of the three main elements - the arm, the sun gear and the ring gear - two may rotate with an optional speed of rotation, while the speed of rotation of the third element develops in dependence of that of theother two. In Fig. 3 one of the known planetary arrange¬ ments is to be seen, which can be advantageously used in the stand-by energy source according to the invention. The /carrier/ arm 211 co-rotates with the shaft 203, the internal ring gear 212 and the external sun gear 213 - supported in bearings - are rotating on the same shaft. The planet pinion supported in bearings on the arm 211 is engaged with the teeth of these two central gears. In Fig. 3a the peripheral velocity vectors of the three elements of the planetary gearing arrangement are illustrated in several modes of operation, when all the three elements are rotating counter-clockwise and with different peripheral velocities. From two known peripheral velocities the third one can be calculated, since the end- points of the three velocity vectors are always falling to one straight line. From the Fig. 3a it becomes obvious that when the arm 211 is rotating with a constant velocity, the pe- ripheral velocity of the two central gears can be chosen within wide limits, in fact, one of them might be even at standstill and this led us to the fundamental idea of the invention: if the electric rotary machines 10 and 11 are connected to the arm 211 of the planetary gearing arrange- ment /Fig. 3/ of the drive 2 /Fig. 2/ and to one of the central gears, e.g. to the sun gear 213 the flywheel and to the ring gear 212 the internal comtrastion motor is connected - the two latter ones can be interchanged - it becomes possible to leave the internal combustion engine 4 in a stand-by state, i.e. it does not rotate, and the motor 1 resp. 10 are driving the flywheel via the planet¬ ary gearing arrangement. In Fig. 4 and in the belonging vector-figure 4a an other mode for the interconnection of the planetary gearing arrangement according to Fig. 3 is to be seen, where the ring gear 212 is engaged with the flywheel 3, the arm 211 with the auxiliary energy source 4 and the sun gear 213 engages with the motor-generator 1 of the mains. Taking into consideration that in this case the sense of rotation of the ring gear 212 connected to the OMPI flywheel is oppostie to the sense of rotation of the other two elements of the planetary gearing arrangement, the angular velocity - and as a consequense, the abrasion ■ will be high, the connection shown in Pig. 3 and 3a are to be considered as more advantageous, and so with the further embodiments this type of connection will be applied. In Fig. 3 and 4, in addition to the reference number of the elements the symbols of the units, to which they are connected, are also indicated in brackets. In Pig. 3a and 4a the symbols of the same units are to be found beside the peripheral velocity vectors of the corres¬ ponding elements. As we have already mentioned before, the speed of rotation of two out of the three elements of the pla¬ netary gearing arrangement determines the speed of the third one. In the stand-by condition this connection can be established in an utmost easy manner, in so far as the internal combustion engine is fixed with a brake; in this case the speed of rotation of the flywheel is proportion¬ al to the speed of rotation of the motor 1. The connection becomes more complicaued when the central energy supply is stopped and the brake is released. In this case the gene¬ rator 1 resp. II generated the electric energy needed, but for this purpose the generator has to be rotated. At the beginning only the nergy having been stored in the flywheel is staying at disposal, as the internal com¬ bustion engine 4 is in a stationary state. When the fly¬ wheel is transmitting the energy, the speed of rotation decrease, accordingly, the constant speed of rotation of the generator can be ensured only by increasing the speed of rotation of the internal combustion engine, that means that the flywheel has to rotate, i.e. to accelerate the internal combustion engine in addition to the generator. Above a certain speed of rotation the internal combustion engine/ is also transmitting an output, increasin approximately in proportion with the ' increase of the speed of rotation. However, realization becomes possible when two. out of the three elements of the planetary gearing arrangement /i.e. the generator connected to them/, the flywheel and the internal combustion engine get engaged with an output-transmitting connection with an infinite¬ ly variable transmission. Three kinds of coupling are possible: 1/ The flywheel is coupled with the internal combustion engine, 2/ the flywheel is coupled to the generator, 3/ the generator is coupled with the internal combustion engine. Out of the three cases the second case differs essentially from the other two, since here an infinitely variable connection has been established between two ele¬ ments, which are rotating even in the stand-by state, accordingly, for this purpose a drive with a slight pόssi- bility for modification, e.g. a varia or with V-belts, suffices. In case /l/ and /3/, respectively, the internal combustion engine being in the stand-by s.tate is to be accelerated to the desired speed of rotation in an infinite- ly variable manner, however, by using a variator with V-belts, acceleration in such a manner cannot be performed. The essence of the embodiment to be seen in Fig. 5 lies in that the three-phase motor-generator 1 is rotating with a constant character, with a speed of ro- tation being in compliance with the voltage and frequency of the mains. If it is a synchron generator, by excitation, i.e. by the control thereof it can be well used for phase correction. Accordingly, in the stand-by state the motor- generator 1 and the flywheel 20 with the shaft 201 are rotating. In this case the auxiliary energy source is O PI represented by the internal combustion engine 10, bu.t it may be any other power source, e.g. a gas turbine. The internal combustion engine 10 -being in a stand-by state, i.e. it does not rotate - is connected via its output shaft 12 to the ring gear 212 of the planetary gearing arrangement. The motor-generator 1 is connected to the arm 211 of the planetary gearing arrangement, while the flywheel 20 engages with the sun gear 213 of the planeta¬ ry gearing arrangement via a pair of bevel gears 202 having been wedged onto the shaft 201. Between the sun gear 213 and the ring gear 212 a drive containing the hydrostatic rotary machines 249, 250 with a variable pis¬ ton displacement are imposed, as a drive branch with an infinitely variable transmission ratio.. In case of an equipment with a higher output the infinitely variable drive should be established with electric rotary machines, By the arrangement it becomes possible that in a station¬ ary position of the internal combustion engine 10 the stand-by energy source should stay at disposal in such a manner that the motor-generator 1, when working as a motor, should keep the flywheel in a "charged" i.e. in a rotary state. In this situation the piston displacement of the rotary machine 250 equals to zero, while the ro¬ tary machine 249 is fixed by means of the control organ 190. In case if the voltage of the mains dropped out or ceased completely for any reason, the piston displace¬ ment of the rotary machine is to be increased gradually, whereby the shaft of the internal combustion motor 10 begins to rotate with a gradually increasing speed of rotation. After having reached the permissible lowest speed of rotation, the internal combustion motor is ig¬ nited and from that moment it is taking part in the ener¬ gy supply of the system. When the output of the internal combustion enginge 10 is reaching resp. surpassing the O P power demand under load of the motor-generator 1, the spee of rotation of the motor in accordance with the changed load, the power demand under the provisional conditions is satisfied by means of the flywheel, while the plus is fed therein. Between the arm 211 and the sun gear 213 of the planetary gearing arrangement there is the frictional clutch 260 arranged; when the clutch is locked, the oper¬ ation of the equipment is similar, o that of the tradition¬ al motor-generator set being driven by an internal com- bustion engine. Referring to the embodiment to be s**n is Fig. 6, 6a and 6b, the aim set for this version has been to satisfy simultaneously the requirements relating to minimal maintenance, long useful life, small space require- ment and easy accomodation. The motor/generator/ 1 supplied from the mains is arranged on the left end of the shaft 203. The ring gear 212 rotates around the shaft 203; the electric ro¬ tary ma.chine 255 and the flywheel 20 /via the bevel gears/ are engaged with the ring gear. The sun gear 213 - being supported in bearings in the shaft 203 is connected by - means of a Gall's chain 227 to the sprocket wheel 228 having been wedged onto the shaft 7, as it is to be seen in the figure. On the right side the electric rotary ma- chine 254 is ' connected to the shaft 7, while on the left side the disc brake 170, the frictional clutch 260 and the internal combustion motor 10 are arranged. In order to be able to prolongate the useful life of the equipment the components, which are contin- uously performing a rotary motion - even in the stand-by state - should rotate as slowly as possible. The speed of rotation of the motor-generator 1 supplied from the mains should not be more than 1000-750 rpm, in such a manner the speed of rotation of the rotary machine 255 will be also relatively low, so about 1200-1500 rpm. The electric rotary machines 254 and 255 can be D.C. machines, in this case it seems to be expedient to raise the brushes of the rotary machine being in the stand-by state. It is considered as a best solution to apply A.C. machines without sliding surfaces and to in¬ sert a controlled reversing switch - a frequency changer - between said machines. The peripheral velocities and the. correlations between the speeds of rotation may be read out from the part-figure on the right side. In a stand-by state the motor-generator 1 supplied from the mains is rotating, the brake 170 is locked and the clutch is released. The rotary machine 254 is at standstill, the rotary machine 255 is rotating in an unloaded state, the flywheel 20 is also rotating. When the energy supply from the mains drops out, by changing the excitation the motor 1 is transformed into a generator and by utilizing the current having been ge¬ nerated by the rotary machine 255, it starts the rotary machine 254. The flywheel 20 is slowing down and trans¬ mits the energy; by the acceleration of the rotary machine 254 the generator can be kept on a constant speed of ro¬ tation. Now, referring to Pig. 7, here a stand-by energy source being essentially similar to the embodiment accord¬ ing to Pig. ' 5 may be seen. The difference lies in that in the infinitely variable drive branch of the planetary gearing arrangement with the output branch a variator with V-belts is used. The output to be gained by means of the equipment is restricted to about 10-30 kW by the di¬ mension of the Y-belt. Since by means of the variator with V-belts trans¬ mission in such a form that one pulley should be at stand¬ still and the other should rotate cannot be realized, an essential difference lies in that with this embodiment the variator provided with the V-belts establishes a driving connection with an infinitely variable transmission between the arm 211 and the sun gear 213 of the planetary gearing arrangement. Accordingly, with the embodiment having been illustrated in Fig. 7, the internal combustion engine 10, having been used as an auxiliary energy source, can be stopped, however, it seems to be expedient to pro¬ mote braking by using an accessory frictional brake 70, i.e. to ensure the stationary state thereof, because in such a manner it becomes possible to loosen temporarily the V-belts. In Fig. 8, 8a and 8b and embodiment is shown, where the resilient drive-transmitting element of the va¬ riator, the endless driving belt can be stopped in the stand-by state, thus prolonging the useful life. With this embodiment the flywheel 20 is engaged with the ring gear 212 of the planetary gearing arrangement, while the auxi¬ liary energy source - in the present case an internal combustion motor 10 - is connected to the sun gear 213 of the planetary gearing arrangement by interposing the releasable safety clutch 260 and the frictional brake 170. Between the ring gear 212 and the arm 211 a variator provided with two V-belts 247 connected in series, with an infinitely variable transmission, is inserted. In order to be able to stop the drive belt, the outer half-discs 243, 246 of the V-belt pulleys having been arranged on the geometric axis of the planetary gear¬ ing arrangement are wedged on the tubular shaft co-rotat¬ ing with the ring gear 212, i.e. they are wedged onto the shaft 203 of the arm 211; the inner half-discs 238 and 239 are supported in bearings and are co-rotating with said shafts but can be axially displaced thereon and in- between the thrust bearing 248 is arranged. The inner half-discs 2442 of the other two V-belt pulleys are wedged onto the tubular countershaft 2441, while the outer half- discs 2443 and 2444 are fixed to the axially displaceable bar 2447 arranged in the inside of the tubular counter¬ shaf 2441. The .distance of the bearing block 2448 of said tubular countershaft 2441 in relation to the geometric axis of the planetary gearing arrangement can be changed by turning-off around the hinging point 2449. The V-belts 247 are enclosed by the metal sheeting 2450 consisting of two halves; the sheeting comprises the freely rotating guide elements 2451 and one half thereof is fastened to the housing 210 of the planetary gearing arrangement, while the other half is fixed to the bearing block 2448 of the tubular countershaft 2441. The variator with the two V-belts 247 having been connected in series can be modified by the axial displace- ent of the bar 2447. In the position of the variator shown in Pig. 8 the bar 2447, as well as the discs 2443, 2444 and the half-discs 238, 239 are in their right-hand end position. As a consequence, the sun gear 213 and the connected auxiliary energy source 10 are at standstill. The tightness of the V-belts 247 can be changed by turn¬ ing the bearing block 2448 around the hinging point 2449. In the stand-by state, after having locked the brake 170 the bearing block 2448 is approximating the shaft 203 of the planetary gear arrangement to such an extent ~ ^_hat the V-belts 247 should leave the frictional surface of the pulleys and bearing up against the guide elements 2451 of the metal sheeting 2450, they should gradually stop. In such a manner their useful life can be considerably pro- longated. With the embodiment shown in Fig. 9 the flywheel 20 engages with the sun gear 213 of the planetary gearing arrangement, while the internal combustion engine 10 is connected via the electric rotary machine 254 to the ring gear 212. The machine 11 requiring continuous drive, the electric rotary machine 254, as well as the consumer re- OMPI quiring uninterrupted energy supply, are electrically interconnected by means of the switching - controlling and regulating unit 8. The ring gear 212 is engaged with the frictional brake 170. From the Fig. 9 and 9a it becomes obvious that this embodiment realizes the schematical arrangement according to Fig. 2, in contrast to the previously des¬ cribed examples, in which the schematical arrangement . according to Fig. 1 has been realized. The advantage of the embodiment according to the Fig. 9 lies in that the structural layout is simple, the drive branch with the infinitely variable transmission is realized by means of the electric rotary machines 11 and 254 » which are supplying also the consumer 5 with current via the switching-controlling and regulating unit 8. OMPI

Claims: Claims : 1. Stand-by energy source, in particular an elec¬ trical supply source for equipments to be operated with a continuous current supply or with a slight break only, comprising one or more electric rotary machines, a fly¬ wheel and some kind of an auxiliary energy source, e.g. a heat engine, c h a r a c t e r i z e d in that the ele- ϋients mentioned above are engaged with three elements of a planetary gearing arrangement, having been arranged around a central shaft, furtheron, two out of them are interconnected by means of a further drive with an infi¬ nitely variable transmission. 2. Stand-by energy source as claimed in claim 1, c h a r a c t e r i z e d in that the electric rotary machine /l/ having been connected to the mains, serving as a generator in case of the drop-out of the voltage, is engaged with the arm /21l/ of the planetary gearing arrange¬ ment, while the flywheel /3/ engages with one central gear of the planetary gearing arrangement, and the auxiliary energy source /4/ with the other central gear thereof /Fig. 3/. 3. Stand-by energy source as claimed in claim 1, c h a r a c t e r i z e d in that the electric rotary machine /!/ and the machine /ll/ requiring a continuous drive, e.g. a generator, a jurap, or a mixer in the che¬ mical industry etc., are connected to the arm /211/ of the planetary gearing arrangement, while the flywheel /3/ engages with one central gear of the planetary gearing arrangement and the auxiliary energy source /4/ with the other central gear thereof, /Fig. 2 and 3/. 4. Stand-by energy source as claimed in claim 1, c h a r a c t e r i z e d In that the electric rotary machine /l/ having been connected to the mains, i.e. the machine requiring uninterrupted drive, e.g. a generator, a pump, a mixer etc., are connected to one central gear of the planetary gearing, while the auxiliary energy source /4/ engages with the arm /211/ of the planetary gearing arrangement and the flywheel /3/ to the other central gear thereof /Fig. 4/. 5. Stand-by energy source as claimed in claim 2, c h a r a c t e r i z e d in that the flywheel /20/ is engaged with the sun gear /213/ of the planetary gearing arrangement, while the auxiliary energy source, in a gi- ven case an internal combustion engine /10/, engages with the ring gear /212/ of the planetary gearing arrangement and between the sun gear /213/ and the ring gear /212/ there is an infinitely variable drive formed by the hydro¬ static rotary machines /249, 250/ with a variable piston displacement and by the control organ /190/ having been interposed in the conduct-sys em inbetween, at last, bet¬ ween the arm /211/ and the sun gear /213/ a frictional clutch /260/ is arranged /Pig. 5/. 6. Stand-by energy source as claimed in claim 2, c h a r a c t e r i z e d in that the flywheel /20/ is engaged with the ring gear /212/ of the planetary gear¬ ing arrangement, while the auxiliary energy source, in a given case an internal combustion engine /10/, engages with the sun gear /213/ of the planetary gearing arrange- ment, furtheron, the drive with an infinitely variable transmission between the sun gear /213/ and the ring gear /212/ is formed by electrical rotary machines /254, 255/, as well as by the switching an controlling organs having been interposed into the network thereof, at last, the sun gear /213/ is connected directly or indirectly - e^ . via a countershaft /!/ - to the brake /170/ /Fig. 6/. 7. Stand-by energy source as claimed in claim 2, c h a r a c t e r i z e d in that the flywheel /20/ is engaged with the sun gear /213/ of the planetary gearing arrangement, the auxiliary energy source, in a given case O PI an internal combustion engine /10/, engages v/ith the ' ring gear /212/ of the planetary gearing arrangement, furtheron, between the sun gear /213/ and the arm /211/ of the planetary gearing arrangement a variator with V- belts has been interposed, and at last, the ring gear /212/ is provided with a frictional brake /170/ /Pig. 7/. 8. Stand-by energy source as claimed in claim 2, c h a r a c t e r i z e d in that the flywheel /20/ is engaged with the ring gear /212/ of the planetary gearing arrangement, the auxiliary energy source, in a given case an internal combustion engine /10/, is connected to the sun gear /213/ of the planetary gearing arrangement via the releasable safety clutch /26θ/ and the frictional brake /170/, furtheron, between the ring gear /212/ and the arm /211/ a variator with V-belts, provided with two V-belts /247/ connected in series, with an infinitely variable transmission, is inserted. /Fig. 8/. 9. Stand-by energy source as claimed in claim 8, c h a r a c t e r i z e d in that the outer half-discs /243, 246/ of the V-belt pulleys having been arranged on the geometric axis ό ' f the planetary gearing arrangement are wedged onto the tubular shaft co-rotating with the ring gear /212/, resp. onto the shaft /203/ of the arm /211/, while the inner haIf-discs /238, 239/ are support- ed in bearings so as to co-rotate with said axes but being displaceable in axial direction, and inbetween a thrust bearing /248/ is arranged; the inner half-discs /2442/ of the other two V-belt pulleys are wedged onto the tu¬ bular countershaft /2441/, the outer half-discs /2443, 2444/ are fixed onto the axially displaceable bar /2447/ having been led in the inside of the tubular counter¬ shaft /2441/, the distance of the bearing block /2448/ of the tubular countershaft /2441/ in relation to the geometric axis of the planetary gearing arrangement may be changed in the given case by turning-off around a hing- ing point /2449/, at last, the V-belts /247/ are enclosed by a metal sheeting /2458/ consisting of two halves and containing freely rotating guide elements ./2451/ and one half thereof is fastened to the house /210/ of the plane- tary gearing arrangement, while the other half is fixed to the bearing block /2448 of the tubular countershaf /2441/ /Fig. 8/. 10. Stand-by energy source as claimed in claim 3, c h a r a c t e r i z e d in that the flywheel /20/ is engaged with the sun gear /213/ of the planetary gearing arrangement, the auxiliary energy source, in the given case an internal combustion engingt./10/, engages with the ring gear /212/ of the planetary gearing arrangement via the electric rotary machine /254/, furtheron, the machine /ll/ requiring the uninterrupted drive and the electric rotary machine /254/, as well as the consumer /5/ re¬ quiring continuous energy supply are electrically inter¬ connected by means of the switching-controlling regulating unit /8/. and at last, the ring gear /212/ is engaged with the frictional brake /170/ /Fig. 9/. OMPI

Inventors: HOOS K, MUCSY E
Applicants: HOOS K, MUCSY E
Application year: 1981
Main classification: H02J9
IPC codes: B60K6, H02J9