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| Number | Title | Issue Date |
| 7685975 | Internal combustion engine twin power unit having an oscillating cylinder An internal combustion engine twin power unit that includes a crossover passage fluidly connecting a first cylinder to a second cylinder such that an air-fuel mixture introduced in the first cylinder is transferred to the second cylinder via the crossover passage, a... | 03/30/2010 |
| 7198011 | Internal combustion engine There is provided a two stroke internal combustion engine comprising a cylinder and a piston. The cylinder has a cylinder head, a wall and a crankcase. The wall extends between the cylinder head and the crankcase. The cylinder head has a first opening and a second o... | 04/03/2007 |
| 6918358 | Eight-stroke internal combustion engine utilizing a slave cylinder By the utilizing of a slave cylinder working in coordination with a master cylinder, the slave cylinder both receives cool atmospheric air and receives hot, partially un-burnt exhaust gases from the master cylinder to create a second power-stroke in the slave cylind... | 07/19/2005 |
| 6834626 | Hybrid electric powertrain A hybrid electric powertrain includes a direct-injection, two-stroke, port scavenged engine in hybrid combination with an electric motor. The engine is configured to use a fuel with wide flammability limits, such as hydrogen, for extremely lean combustion to signifi... | 12/28/2004 |
| 6314925 | Two-stroke internal combustion engine with recuperator in cylinder head A Recuperative Cycle tow-stroke internal combustion engine having an expander cylinder with an open combustion chamber in its working end and a separate compressor for injecting a compressed air charge into the chamber obtains improved Carnot efficiency b... | 11/13/2001 |
| 5722355 | Twin-piston engine A twin-piston engine (1), i.e., a crankcase scavenged two-stroke internal combustion engine comprising two pistons (2,3) travelling in essentially the same direction, and wherein one (4) of the cylinder bores, the exhaust bore (4), contains all exhaust po... | 03/03/1998 |
| 4781155 | Regeneratively acting two-stroke internal combustion engine In a regeneratively operating two-stroke reciprocating internal combustion engine with at least one working cylinder, a supercharger cylinder (2) is associated with the combustion cylinder (3), the supercharger cylinder being connected to the combustion c... | 11/01/1988 |
| 4391233 | Internal-combustion engine An internal combustion engine having at least one working cylinder which has a combustion chamber, a working piston which is connected to a crankshaft, and an inlet nozzle for the supply of fuel. Associated with the working cylinder is an auxiliary cylind... | 07/05/1983 |
| 4157080 | Internal combustion engine having compartmented combustion chamber The invention resides in a fuel efficient internal combustion engine employing a substantially constant volume combustion method and a moderate equivalent compression ratio. The engine has an air compressor connected to the intake port of the first cavity... | 06/05/1979 |
| 3999523 | Internal combustion engine An opposed piston engine includes pistons mounted at opposite ends of a piston rod which is pivotally coupled to one end of a rocker arm coupling the piston rod to a connecting rod in turn coupled to an eccentric drive mechanism. The rocker arm is pivotal... | 12/28/1976 |
