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| Number | Title | Issue Date |
| 7325538 | Versatile vortex air generator and method of installation An easily installed versatile trimmable fit-to-size vortex airflow generator for use in internal combustion engines to enhance fuel efficiency is provided. The multi-impeller vortex generator comprises a plurality of blades evenly spaced angularly on a central hub. ... | 02/05/2008 |
| 7313918 | Alternative (reciprocating) engine with recirculation of exhaust gases intended for the propulsion of automobiles and method turbocharging these motors A reciprocating engine includes a turbocharging unit that: supplies the intake manifold with air via a coolant; is supplied with gas by the exhaust manifold; and has the turbine supply pressure substantially equal to the compressor discharge pressure. At constant ai... | 01/01/2008 |
| 7025021 | Two-stroke internal combustion engine Crankcase scavenged two-stroke internal combustion engine (1), in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3′). The air inlet is equipped with a restriction val... | 04/11/2006 |
| 5908013 | Two-cycle engine A two-cycle engine for boosting intake pressure for higher performance per displacement. The two-cycle engine includes a crankcase having a blower housing and a crankshaft therein extending through the blower housing. The blower housing has an intake open... | 06/01/1999 |
| 5740767 | Scavenge control for engine A number of embodiments of two-cycle engines employing Schnurle-type scavenging. In addition and in some embodiments, a ramble port is also incorporated so as to introduce a tumble charge into the combustion chamber and reduce the likelihood of fresh char... | 04/21/1998 |
| 5671703 | Two-cycle engine A number of embodiments of two-cycle engines employing Schnurle-type scavenging. In addition, a tumble port is also incorporated so as to introduce a tumble charge into the combustion chamber and reduce the likelihood of fresh charge from exiting from the... | 09/30/1997 |
| 5638780 | Inlet system for a two cycle internal combustion engine In an inlet system for a two-cycle internal combustion engine which includes a cylinder with a piston reciprocating therein between a top dead center position and a bottom dead center position and in which at least two rows of scavenging air flow passages... | 06/17/1997 |
| 5517954 | Induction method for a compression-ignition internal combustion engine Using a centrifugation effect, the fresh air introduced to the working chamber (1) of the engine is prevented from mixing with the combustion gases intentionally retained in the latter from one cycle to the next. The means for introducing pressurised fuel... | 05/21/1996 |
| 5213069 | Two-stroke super charged engine and process for operating A two-stroke internal combustion engine is provided with a cylinder and a piston reciprocatingly mounted in the cylinder; the cylinder has two inlet ducts each having a inlet port opening into the cylinder for delivering a inlet strain to the cylinder and... | 05/25/1993 |
| 5144919 | Two-stroke cycle reciprocating internal combustion engine for spark ignition and crankcase scavenging A two-stroke cycle reciprocating internal combustion engine for spark ignition and crankcase scavenging comprises a fuel injection nozzle and an arbitrarily operable throttle valve, which is provided in an air intake passage in upstream of leaf spring dam... | 09/08/1992 |
| 5040496 | Two-stroke internal combustion engine In known two-stroke internal combustion engines with piston-controlled intake passages for the fresh charge and one or more exhaust passages for the exhaust gases, the actual direction of flow will deviate from the theoretical flow direction defined by th... | 08/20/1991 |
| 4821687 | Two-stroke engine A combustion chamber and scavenging configuration for a two-cycle internal combustion engine. The combustion chamber is comprised of an offset recess surrounded by a squish area. An exhaust port is formed on the side of the cylinder opposite to the area w... | 04/18/1989 |
| 4638770 | Porting system for two cycle internal combustion engines A porting system for two-cycle internal combustion engines has two exhaust ports located on diametrically opposed sides of the cylinder. A pair of intake or by-pass ports are symmetrically positioned on each side of the two exhaust ports. The flow of fuel... | 01/27/1987 |
| 4543916 | Induced controlled detonation internal combustion engine A two-stroke cycle nonscavenged internal combustion engine operates under controlled detonating conditions without damage to the engine and with greatly enhanced fuel economy. The engine may have any desired number of cylinders operating initially on a tw... | 10/01/1985 |
| 4312305 | Two-stroke cycle gasoline engine A two-stroke cycle gasoline engine including at least one two-stroke cycle uniflow scavenging power cylinder-piston assembly which has a scavenging port configuration which consists of first, second, and third scavenging port configurations which are succ... | 01/26/1982 |
| 4248183 | Two-stroke cycle diesel engine A two-stroke cycle diesel engine having: at least one two-stroke cycle power cylinder - piston assembly incorporating uniflow scavenging and having two horizontally opposed pistons, at least first and second scavenging ports and two crankcases which may p... | 02/03/1981 |
| 4162663 | Stratified charge four-stroke engine Disclosed herein is an internal combustion engine comprising a cylinder, a piston movable in the cylinder between top dead center and bottom dead center positions, and an air entry port located in the cylinder adjacently above the piston when the piston i... | 07/31/1979 |
