RESILIENTED PISTON IN THE INTERNAL COMBUSTION ENGINE

Abstract: In a four-stroke internal combustion engine an elastic or telescoping link is provided between the piston crown and the crank shaft (5) whereby, at the completion of the exhaust stroke, the piston crown is able to extend its travel towards the cylinder head (2) thereby expelling substantially all combustion products from the working space (22). The link may be a compression spring (17) or telescoping members located between the piston and connecting rod (8), between sections of a multipiece piston (12, 13) or between the small end and big end of the connecting rod (8). The elastic or telescoping link has application in reciprocating, rotary or orbital piston engines.

Description: " Resiliented Piston in the Internal Combustion x * f ffcgine • TECHNICAL FIELD The invention pertains to improvements of internal combustion enginea whether with a reciprocating or rotary or or i al platen at which ia solved more complete displacement of combustion gaaes from the cy- Under before a fuel-air mixture ia sucked or filled in * BACKGROUND ART Disposition of the hitherto known internal eombuatien enginea enables displacement of such quantum of combustion gases which by own cubic capacity equals to exhaustion stroke of the piston. This is because the exhaus ion stroke equals to the compressive one that is why after exhauβtlen stroke always remains just such quantum of combustion gases which by own undiluted velwme equal to cubic volume which is necessary for compression of the fuel-air mixture in the cylinder * The defect consist in that the fuel-air mixture is alwayβ sucked or filled up to a remainder of combustion OMPI . IPO gases into the cylinder which substantially depreciates so ready fual-air mixture ta campressian and it dees not only make percep ible aggravation for ignition or ignition by compression but it especially reduces effect of expansion, alias it reduces efficiency of the internal combustion engines * DISCXOSTJRE OP INVENTION In contraat ta the existing stage of the technics higher effect is attained by a reslllented piston in an internal combustion engine in accor (fiance with the invention * Basic principles of the invention are equipment of a piston assembly by a resilient mounting; disposition of the cylinder and of the piston which are made so that they enable to reduce the exhausting space to the pe rfect minimum at the moment of completion of exhaust stroke when the resilient mounting is not weighted by compression pressure and is extended to its maximum size; and a compression space made by reaction of compression pressure on the piston with completion of compression stroke whereby the resilient mounting is pressed and it is the consequence of the piston' s subsidence in the cylinder for creating of the essential space to compression of the fuel-air mixture * The resilient mounting, putting together an internal part of the piston and an external part of the piston or the small end and the big end of a connecting rod or through a gudgeon pin the piston and the connecting rod, which is either a spring resilient mounting or a teleβcopical ane, made so that it is automatically extended to ita limit size when the piston is not weighted by compression pressure, and is contracted ta its limit size before or when the project compression pressure is reached In the cylinder* By activity of the resilient mounting is reached a better displacement of combustion gases from the cylinder and strengthening up to automatle regulation of the compression of the fuel-air mixture in the cylinder * Owing to the better displacement of combustion gases there is reached a reduction of the fuel-air mixture from the combustion gasoa. Together it increases ignitabllity or Ignitablllty by compression and amplifies an expansive force in the cylinder or, in other words, OMH_ _. > - the invent iβn increases efficiency βf the internal combuβtion engines * BRIEF DESCRIPTION Ox? DRAWING The Invention is illustrated dlagrammatlcally in the accompanying drawing by way of examples * The diagram illustrates only the principles of the invention * It is therefore to be understood that the invention is capable of numerous modifica ions and variations apparent ta these skilled in the art withβut departing from the spirit and scape of the invention * Figure 1 is a diagrammatic crass-sectional view of the part of a fβur-cyβle internal combustion engine, in the concrete of the part concerning a cylinder block, the part concerning a cylinder head assembly, the four piston assembly, the part concerning of a crankshaft, and the part concerning a erankcase * All cross-section surfaces are demarcated by bold line and hatched, only the slight particles are indicated by one bold line * Connections of mains which are not evident from cross-section they are indicated by thin lineal lines. Illustrated state is at a dead centre position wherein the pistons are at the βxtremeβ of their travel * BEST HOIS OF CARRYING OUT INVENTION Figure 1 shows the best mode of carrying βut the Invention. The diagrammatic creββ-ββctiβnal view of the part βf the feur-cyele Internal combus ion engine eorapr iseβ a cylinder block with four cylinders 1; a cylinder head 2 with an exhaust valve 3 and with an Inlet valve k f r every cylinder 1; a crankshaft 5 with bearing shells 6; four piston assemblies; and a crankcaβe 7 * The piston assembly comprises a connecting rod 8 with a bearing cap 9, a gudgeon pin 10 with two circlipa 11 , and the piston * The pie ton comprises an internal part of the platen 12, an external part of the piston 13, and a resilient mounting * The one-piece internal part of the piston 12 is formed from a barrel side-piece and fram a ring rib * The barrel side-piece βf the internal part of the piston is furnished by two opposite centre hole* 1lj. for the gudgeon pin 10, which is assured by twa cirβllpβ 11 there * The ring rib, which reinforces the Internal part of the piston 12, is furnished by a round dimple * The round dimple is a bed for the resilient moun ing. A centric space of the ring rib is for the small end of the connecting rod to its pendulum movement there * The external part ef the pis tan 13, which ia reβiliβntly Jointed with the internal part of piston 12, is equiped with a ring equipment 15, and with a flange 16 * The barrel side-piece of the external part of the piston on its open part is thinned Inside for putting the internal part of the piston 12 there and for equipage of the external part ef the piston by the flange 16 * The flange 16 prevents the internal part of the piston 12 and the external part of the piston 13 from getting out from their reciprocal Joint * The length of the thinning of the barrel side—piece te the flange 16 limits the strβtehi- ness a d the shrinkage of the resilient mounting * The resilient mounting, which reβiliented the external part ef the platan 13 fram the Internal part of the piston 12, comprises a coil spring 17, and a ring spring seat 18 * The bed ef the coil spring is the round dimple in the ring rib which prevents the cell spring 17 from the movement ta side * The ring spr ing seat 18 prevents the external part ef the platen 13 from the frietioning by the coil spring 17 * The resilient mounting is automatically extended to its maximum size when the piston is not weighted by compression pressure and is contracted to its minimum size before er when the project compression pressure is reached in the cylinder 1 * Diagram of Figure 1 is also s graphic description of state with completion of every stroke from fourstroke- cycles Completion of inlet stroke A, completion of compression stroke B, completion of expansion stroke C, and completion of exhaust stroke D. During the time of inlet stroke, the resilient mounting is stretched to maximum size because on the head of the piston there is not an operation of compression pressure, but on the contrar a vacuum arises with suction in the cylinder 1 * The suction apace 19 created with completion of inlet stroke A and in thia time it is a real volume of the cylinder* With compression stroke the resilient mounting is pressed in dependence on the growth of compression pressure in the cylinder 1 * With the completion of compression stroke B, the resilient mounting is pressed to its limit shrink, provided that there is a sufficient OMPI U WHO suc k ed quantum of the fuel-air mixture * In dβ pen dance ef a quantity of sucked fuel-air mixture into cylinder 1 , the corapreβsien space 20 can be slightly decreased if the resilient mounting has strengthened the compression stroke * With the completion of expansion stroke C, depression of the resilient mounting is dependent upon the expansion force * If the expansion force is sufficient, there results an elongated expansion stroke or, In other words, there is created a maximal expansion space 21 in the cylinder 1 * The spontaneous extension of the resilient mounting comes when the expansion pressure after explosion ceases to be effective * The reduced exhausting space 22 is created when the completion of exhaust stroke D, is reached* All the elements of the cylinder head asembly which could be in the way of the piston they are sunk into the cylinder head 2« It must be kept in mind espβcialy that with the completing βf exhaust stroke, the exhaust valve 3 is now still opened a little, and it will clβse with the completion of exhaust stroke D* INDUSTRIAL APPLICABILITY The industrial exploitatlan of the invention is in the manufacturing of the above* SUMMARY OF REFERENCE SIGNS 1 - CYLINDER 12 - INTERNAL PART OF PISTON CYLINDER HEAD 13 - EXTERNAL PART OF PISTON 3 - EXHAUST VALVE 1k • OPPOSITE CENTRE HOLE II - INLET VALVE 15 - RING EQUIPMENT 5 - CRANKSHAFT 16 - FLANGE 6 — BEARING SHELL 17 - CO L SPRING 7 - CRANKCASE 18 - RING SPRING SEAT 8 - CONNECTING ROD 19 - SUCTION SPACE 9 - BEARING CAP 20 - COMPRESSION SPACE 0 - GUDGEON PIN 21 - MAXIMAL EXPANSION SPACE 1 - CIRCLIP 22 - REDUCED EXHAUSTING SPACE A - COMPLETION OF INLET STROKE B - COMPLETION OF COMPRESSION STROKE C - COMPLETION OF EXPANSION STROKE D - COMPLETION OF EXHAUST STROKE

Claims: C L A I M A reslliented piston in an internal cembuatlon engine characterized by a resilient mounting, putting together an internal part of the piston (12) and an external part of the piston (13) or the small end and the big end of a connecting rod or through a gudgeon pin ( 10) the piston and the connecting re d (8) , which is either a spring resilient mounting or a teleac e ical one made so that it is automatically extended to its maximum size when the piston is not weighted by compression pressure and is contracted te its minimum aize before or when the project compression pressure is reached in the cylinder ( 1 ) ; and by a reduced exhausting space (22) with completion of the exhaust stroke (D) when the resilient mounting is extended to its maximum; and by a compression spac e ( 20) which is made by a reaction of compression pressure on the piston with completion of the compression stroke (B) whereby the resilient mounting is pressed and it is the consequence of the piston' s subsidence in the cylinder (1 )*

Inventors: POLESY MARTIN, ZAK ANTHENY, ZAK RENE, POLESY, MARTIN, ZAK, ANTHENY, ZAK, RENE
Applicants: POLESY & CO CORNSACKS PTY LTD, H. POLESY & CO. (CORNSACKS) PTY. LTD.
Application year: 1983
Main classification: F02B29
IPC codes: F02B75