DOUBLE EXPLOSION PISTON LCV R1

Abstract: The main feature of the "DOUBLE EXPLOSION PISTON" consists in the fact that it can also produce intermittent explosion that allows the obtaining of a higher engine torque for various revolutions. The system permits the efficient filling of the two combustion chambers of the "DOUBLE EXPLOSION PISTON" so that while one piston produces the explosion, the other one is loading, ensuring constant pressure upon the engine torque. The existence of the intermediate segment inside the cylinder of the "DOUBLE EXPLOSION PISTON" makes the bottom piston work in a four-stroke cycle also, ensuring identical performances as the upper piston. The fuel allocation to the bottom piston can be piloted to achieve an optimizing of the engine torque, meaning the strokes can coincide or can be in contrast.

Description: DOUBLE EXPLOSION PISTON LCV Rl The invention here presented refers to an engine whose basic device is a DOUBLE EXPLOSION PISTON meant for internal combustion engines that transforms the exploding force into an expulsive one. The DOUBLE EXPLOSION PISTON is characterized by the comprising of two pistons, disposed one inside the other and connected in a fixed joint by the upper piston skirt (the extension of the upper piston external side) and a piston cylinder that encloses in its back side a second distinct gliding plane, smaller in diameter than the upper one and which is linked of the DOUBLE- EXPLOSION PISTON cylinder through the intermediate segment between the two gliding planes where are situated the inlet and outlet valves and through four cooling bottom ribs situated on the bottom gliding plane length , which are also linked of the intermediate segment. This second gliding plane constitutes the motion space of the bottom piston. The power developed by the DOUBLE EXPLOSION PISTON is transmitted to the crankshaft through a classic crank and connecting rod assembly. Both gliding planes make possible the working of the DOUBLE EXPLOSION PISTON and by uniform pre-established allocation of the burning mixture in the two combustion chambers they develop a superior force increasing the performances. It is known a piston (DE no. 3702694) for the internal combustion engines and a cylinder liner for such an engine (DE no. 2149400) which represents the rule for the internal combustion domain, but in most cases, these engines have reduced flexibility and achieve performances only by great consumption, volume. cylinder capacity. The technical problem that DOUBLE EXPLOSION PISTON solves consists in allowance the totaling the power produced by the upper piston working cycle with the one produced by the bottom piston working cycle, imprinting to the crankshaft a greater force that permits the obtaining of great power of the engine even at lower revolution, implicit obtaining of reasonable revolutions. Follows an application example of the invention and the corresponding figures showing: - l g. l : transverse section through the DOUBLE EXPLOSION PISTON, according to the im ention. - tϊg.2.3.4.5: transverse section through the DOUBLE EXPLOSION PISTON for its different running times. - fig.ό: transverse section through the DUOBLE EXPLOSION PISTON skirt and a view over it. - fig. 7: the proper DOUBLE EXPLOSION PISTON assembly. - fig.8: the bottom piston. - fιg.9: the upper piston with the extension of its skirt. In this concrete example, the construction permit the introduction of the DOUBLE EXPLOSION PISTON into a classic crankcase. the upper piston working in a four - stroke cycle and the bottom one in a two - stroke cycle synchronized with the first. The fuel allocation to the bottom piston can be piloted to achieve an optimizing of the engine torque, meaning the strokes can coincide or can be in contrast. DOUBLE EXPLOSLNG PISTON is composed of a cylinder liner that has on its back side, at the level of the partition between The two gliding planes, an intermediate segment that serves the bottom piston working and communication channels between the upper and the bottom cylinder capacity for permitting the passing of the upper piston skirt. The intermediate segment is a constructive element of the cylinder, being equipped with intake and exhaust openings for the under-pressure gas feeding of the inlet valves and for burning gas outlet. These openings can be equipped with axial outlet (according to draws ) or radial outlet depending on assembly necessities. In the abovementioned example, the input and exhaust openings and the ones for the ignition cables setting will be situated in the external ribs of the DOUBLE EXPLOSION PISTON cylinder, those ribs being located between the cvlinder upper side and the ignition plugs of the bottom piston. The openings are disposed as follow s: two for fuel and air feeding, disposed symmetrically on the ribs, tw o for exhaust the burning gas. also s\ mmetricalh disposed, and two on the same side with the intake openings through which ignition cables are set. The input and exhaust openings are equipped, on their upper side, with threads for connection at the feeding/exhausting system of the engine. Furthermore, in the intermediate segment are also situated the two inlet valves and the outlet vah e which are equipped with springs. The operation of these valves will be done by springs pads situated on the backside of the upper piston head. The bottom piston cylinder is linked of the cylinder of the entire DOUBLE EXPLOSION PISTON at the intermediate segment level, situated between the two gliding planes, also by the four bottom ribs situated on the bottom gliding plane length. The bottom ribs have the role of guiding the DOUBLE- EXPLOSION PISTON, of consolidating the bottom cylinder and the} are hollow centered, containing cooling water. These ribs are equally distanced from each other and symmetrically disposed from the external upper ones. The bottom ignition plugs are located through these external ribs of the cylinder at their interfingering with the bottom ones situated inside the DOUBLE EXPLOSION PISTON cylinder, in the bottom piston zone. DOUBLE EXPLOSION PISTON itself is made of two superimposed pistons disposed one inside the other which are connected in a fixe joint by a cylindrical surface (the upper piston skirt) on which there are four cuttings with the role of permitting the glide of the DOUBLE EXPLOSION PISTON by the bottom ribs of the cylinder, these cuttings having release spaces that allow the oil passing to the upper piston and to the vah es of the bottom piston and also the expulsion of the air between the two pistons. After their setting up in the cylinder, the upper piston makes a screwed joint with the bottom one at the skirt extension level. Gaseous exchange at the upper piston is made by a cylinder head in four- stroke cycle, enclosing two ignition plugs. The upper piston can be fed with compressed gas or simply by intake. The bottom piston will have a compressor and both pistons will have electronic fuel injection. The cylinder will be fixed to the crankcase by joint pins. The upper piston cooling is made by cooling chambers located among the ribs, and the bottom piston cooling is made by cooling chambers located accordingly for permitting to the mside ribs water to cool the piston cylinder. The bottom cylinder can be efficiently cooled by its double - walled construction so that the water introduced inside the ribs can pass trough these walls, cooling the cylinder. In a constructive variant, not disposing of the draws, a cam axle located by the cylinder ribs above the intermediate segment, performing the four-stroke working of the bottom piston can operate the bottom valves. The bottom piston feeding and the burning gas exhaust can be also done at the intermediate segment level. Another constructive variant involves the substitution of the upper piston skirt with tight screw rods that assure the compression for the bottom piston in the upper piston gliding space, the upper piston will be farther fed working as an engine, sen'ing in the same time also as a compressor for the bottom piston. This constructive variant eliminates the bottom ribs: the gliding walls of the bottom piston will be the DOUBLE EXPLOSION PISTON walls, the cooling being classically performed. The advantages of the abovementioned invention are as follows: - the obtaining of a remarkable engine torque; - an engine with a small constructive volume reported to the developed power: - permits a superior dosing of the burning mixture in the two combustion chambers: - a remarkable flexibility for various revolutions; - permits the fuel feeding interruption of one of the pistons depending on the working condition of the engine, preserving the noiselessness and the stability of the engine: - permits feeding with other type of fuel maintaining performances: - the system permits burning gas exhaust from one cylinder in the other where, after enriching, will determine its explosion: - such an engine provides a remarkable starting no matter the w r eather conditions: - depending on the stroke-cycles of the DOUBLE EXPLOSION PISTON it can perform remarkable powers and performances; - due to the great engine torque it can work at low revolutions, with reduced fuel consumption; - excellent for Diesel engines; - there can be obtained special revolutions by using easy constructive materials and a proper sizing of the pistons.

Claims: CLAIMS 1. DOUBLE EXPLOSION PISTON characterized by the comprising of a double piston (fig.7), made of an upper piston (4) united with the bottom piston (9); this device (fig.7) glides synchronically in a cylinder (6) enclosing two different gliding planes separated by an intermediate segment (24) and works as an internal combustion engine on its upper side (4) and simultaneous synchronically as an internal combustion engine on its bottom side (9) transmitting the pressure energy of the two cycles in rotating motion, by a classic crank and connecting - rod assembly. 2. Double piston (fig.7) characterized by the locating of the bottom piston (9) on the inside extension of the skirt (25) of the upper piston (4), which are circumferencial assembled by screws (10). On this skirt are located the four cuttings (26) that permit the DOUBLE EXPLOSION PISTON gliding on the bottom ribs (22). 3. The upper piston (4) is equipped at the lower side of its top with three pads (5,7) for operating the valves (8,16) of the bottom piston (9). 4. DOUBLE EXPLOSION PISTON cylinder (6) comprises two different gliding planes and an intermediate segment (24) located between them which allows the bottom piston (9) working. 5. The intermediate segment (24) encloses in its structure the afferent seats of the three valves, two inlet valves (16) and one outlet valve (8), and also the afferent feeding and exhaust openings. Furthermore, the intermediate segment (24) is equipped with communication channels (23) between the upper and the bottom volume, for the piston skirt (25) passing; these communication channels (23) are located among the bottom ribs (22) of the bottom piston (9) cylinder. 6. DOUBLE EXPLOSION PISTON cylinder (6) encloses in its backside a second different gliding plane, smaller in diameter than the upper one. that makes a joint with the DOUBLE EXPLOSION PISTON cylinder (6) by the intennediate segment (24) level and also by the four bottom ribs (22). 7. The bottom ribs (22 ) are hollow centered and are located on the bottom gliding plane surface, equally distanced from each other and symmetrically positioned from the external upper ones. 8. DOUBLE EXPLOSION PISTON cylinder (6) is equipped on its upper side with four external ribs through which there are situated openings as follows: two openings for the fuel feeding (20), symmetrically disposed on the ribs, two openings for the burning gas outlet (21 ). also symmetrical, and two openings disposed on the same side with the intake ones through which ignition cables (19) are set. These ribs are located on the upper piston length down to the ignition plugs (15) of the bottom piston (9). 9. The two bottom ignition plugs (15) are located through these ribs at the interfmgering of the external ones ith the bottom ones. 10. DOUBLE EXPLOSION PISTON is fixed to the crankcase ( 13) of engine b\ joint pins (14). 1 1. At its upper side, the DOUBLE EXPLOSION PISTON cylinder (6) is equipped with inlet connections (17) and outlet AMENDED CLAIMS [received by the International Bureau on 7 July 2000 (07.07.00); original claims 1-11 replaced by amended claims 1-5 (1 page)] 1. DOUBLE EXPLOSION PISTON characterized by: DOUBLE EXPLOSION PISTON cylinder (6) comprising two different gliding planes and an intermediate segment (24) located between them which allows the bottom piston (9) working; the intermediate segment (24) encloses in its structure the afferent seats of the three valves, two inlet valves (16) and one outlet valve (8), and also the afferent feeding and exhaust openings. Furthermore, the intermediate segment (24) is equipped with communication channels (23) between the upper and the bottom volume, for the piston skirt (25) passing; these communication channels (23) are located among the bottom ribs (22) of the bottom piston (9) cylinder. 2. DOUBLE EXPLOSION PISTON cylinder (6) encloses in its backside a second different gliding plane, smaller in diameter than the upper one, that makes a joint with the DOUBLE EXPLOSION PISTON cylinder (6) by the intermediate segment (24) level and also by the four bottom ribs (22). 3. The bottom ribs (22) are hollow centered and are located on the bottom gliding plane surface, equally distanced from each other and symmetrically positioned from the external upper ones. 4. DOUBLE EXPLOSION PISTON characterized by the fact that the two pistons are disposed one inside the other, so that the bottom piston (9) with its cylinder and the intermediate segment (24) are situated inside the skirt (25) of the upper piston (4), making a whole through the skirt (25) that combines them. 5. The skirt (25) of the DOUBLE EXPLOSION PISTON presents longitudinal cuttings (26) which allows its gliding on the bottom ribs (22). STATEMENT UNDER ARTICLE 19 (1) The amended claims have no impact on the description and the drawings. Claims 4, 5, 6, 7 as filed, considered by the International Search Report as absolute novelty are renumbered 1, 2 and 3, representing the invention essence. Claim 4 as amended is formulated on the basis of claim 1 as filed showing through its new formula, the important differences in a conceptual and constructive point of view from the citation US 1 482 442 A Shamberger, Feb.5, 1924. Th is: for the present invention the two pistons are disposed one inside the other, the bottom piston having all the functioning elements inside the upper piston skirt, making a whole with the upper piston which works as a classic piston on a cylinder, still having two explosions. By the same time, the bottom piston with its distinct cylinder is situated inside the upper piston cylinder.

Inventors: VISOIU LILIAN CATALIN, VI&SCEDIL
Applicants: VISOIU LILIAN CATALIN, VI&SCEDIL
Application year: 2000
Main classification: F02B75
IPC codes: F01B7, F02B75