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| Number | Title | Issue Date |
| 7143725 | Dual six-stroke self-cooling internal combustion engine The present invention provides a dual six-stroke self-cooling internal combustion engine which utilizes a turbo and a cooling cylinder to compress cool air onto the engine head and reduce the engine temperature. The present invention greatly reduces the size and the... | 12/05/2006 |
| 6415747 | Two stroke, multiple cylinder engine for small vehicle An improved two stroke, multiple cylinder engine having combustion chambers and a single exhaust conduit for discharging exhaust gasses from the combustion chambers. In accordance with one feature of the invention, the combustion chambers are unified to t... | 07/09/2002 |
| 5540055 | Suction and exhaust connection device A suction and exhaust connection device for a multi-cylinder internal combustion engine is disclosed. The device converts the exhaust pressure of a cylinder in the exhaust stroke into suction pressure for another cylinder in the suction stroke which is sy... | 07/30/1996 |
| 4862857 | Fuel injection system for multi cylinder two-stroke engine Disclosed herein is an internal combustion engine comprising first and second cylinders respectively including head ends and side walls, first and second pistons respectively reciprocably movable in the first and second cylinders between top dead center a... | 09/05/1989 |
| 4829958 | Device and method for introducing pressurized gas into a combustion chamber of a reciprocating internal combustion engine A device and method for introducing pressurized gas into a combustion chamber of an engine. The device includes a duct and an intermittent obstruction member, with the placing the cylinder and the combustion chamber in communication via said obstruction m... | 05/16/1989 |
| 4363296 | Combustion chamber pressure tap A source of gas pressure from an internal combustion engine is made available by tapping off the exhaust products within the combustion chamber, preferably just prior to exhausting the gas out of the engine. A pressure tap fitting communicates with the co... | 12/14/1982 |
| 4351290 | Internal combustion engine with improved efficiency and filling by recovery of part of the energy of the blasts which are produced during the opening of the exhaust ports The invention uses the supersonic blast occurring when the exhaust is opened in an internal combustion engine having a variable volume combustion chamber. A transfer conduit is provided between the exhaust pipe and the intake pipe, the volume of this cond... | 09/28/1982 |
| 4131090 | Two-stroke, multicylinder, spark ignition, pumpless injection internal combustion engine This invention relates to a two-stroke, spark ignition, internal combustion engine, with two, three, four or six cylinders. Fuel injection is provided by means of combustion gases and no fuel pump is employed. The working spaces of the engine cylinders ar... | 12/26/1978 |
| 4091775 | Two-stroke internal combustion engine The intake ports of the combustion chambers of two alternately-operating cylinders of a two-stroke internal combustion engine are connected by a conduit which sets up temporary communication between the two cylinders. In operation, while the piston of one... | 05/30/1978 |
| 4020801 | Two-stroke, multicylinder, spark ignition, pumpless injection internal combustion engine This invention relates to a two-stroke, spark ignition, internal combustion engine, with two, three, four or six cylinders. Fuel injection is provided by means of combustion gases and no fuel pump is employed. The working spaces of the engine cylinders ar... | 05/03/1977 |
| 3974804 | Explosion engine with several combustion chambers Two cylinders of a Diesel or gasoline engine are connected by a pipe leading into ports of the combustion chambers which are simultaneously uncovered by the respective pistons at the beginning of the exhaust phase of one chamber and the end of the intake ... | 08/17/1976 |
