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| Number | Title | Issue Date |
| 7380525 | Method of operating an internal combustion engine A method is disclosed for operating an internal combustion engine of the type having an engine cylinder with a reciprocating piston, first and second intake ports for admitting gas from an ambient air supply into the engine cylinder, first and second intake valves e... | 06/03/2008 |
| 6952923 | Split-cycle four-stroke engine An engine has a crankshaft, rotating about a crankshaft axis of the engine. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through an expansion stroke and ... | 10/11/2005 |
| 6953020 | Control of auto-ignition timing for combustion in piston engines by prechamber compression ignition A method and system of controlling auto-ignition timing in an internal combustion engine cylinder in which the timing of auto-ignition in prechambers that are coupled to the cylinder is precisely controlled. The auto-ignition in the prechambers is produced by a comp... | 10/11/2005 |
| 6941907 | Homogneous or premixed charge auto-ignition engine A homogeneous or pre-mixed charge auto-ignition engine comprising two interconnected chambers (20, 30) one of which is the combustion chamber (20) and the other (30) containing the power transmitting member (31). Between the two chambers ... | 09/13/2005 |
| 6814032 | Dual fuel engine The present invention aims to allow an arbitrary selection to be made between gas operation and diesel operation, to achieve a reduction in NOx even when in diesel operation, to allow the compression ratio to be adjusted and altered in accordance with the operating ... | 11/09/2004 |
| 6763787 | Device for controlling the phase angle between a first and a second crankshaft Method and device for regulating the phase angle between a first and a second crankshaft of an internal combustion engine. The engine includes primary cylinders that communicate with secondary cylinders and in every primary cylinder there is movably arranged a prima... | 07/20/2004 |
| 6578533 | Controlled homogeneous-charge, compression-ignition engine An engine has a plurality of combustion cylinders with a first piston reciprocably mounted in each of the combustion cylinders in the conventional manner. The engine head has, in communication with each of the combustion cylinders, a cylindrical recess co... | 06/17/2003 |
| 6026778 | Method and device for decoking a combustion chamber of a diesel engine The invention relates to the measuring of the cetane number of fuels supplied to diesel engines. According to the invention, the combustion chamber of a diesel engine for measuring the cetane number of a fuel is decoked by creating, between two measuremen... | 02/22/2000 |
| 5842453 | Device in a cylinder head for an internal combustion engine The invention relates to a device in a cylinder head for an internal combustion engine, said cylinder head for each cylinder comprising at least one inlet channel with an inlet valve for controlling the communication between the inlet channel and a combus... | 12/01/1998 |
| 5101776 | Engine with variable compression ratio An internal combustion engine is described in which each combustion chamber (10) in the engine has an associated auxiliary chamber (18), and in which, for low compression ratio operation, the auxiliary chamber (18) is constantly connected to the combustio... | 04/07/1992 |
| 4890585 | Internal combustion engine with valve A conventional internal combustion engine having at least one combustion chamber, the combination of a first means for varying the volume of said combustion chamber, an intake valve operated solely by vacuum forces occurring within said combustion chamber... | 01/02/1990 |
| 4877000 | Internal combustion engine An internal combustion engine which includes a cylinder, a piston mounted for movement internally of the cylinder, a precombustion chamber and a device external of the cylinder for compressing and transferring air to the precombustion chamber. The cylinde... | 10/31/1989 |
| 4787341 | Pressure assist piston for internal combustion engine A controlled pressure combustion chamber for a reciprocating engine. The engine includes a main cylinder and a main reciprocating piston. In the cyliner head is a second cylinder which opens to the first cylinder. A free piston in the second cylinder in s... | 11/29/1988 |
| 4625684 | Internal combustion engine Internal combustion engine comprising at least one cylinder (10), one piston (2) mounted to the crankshaft (2'), and at least one inlet valve and one exhaust valve. At the end of the cylinder (1) corresponding to the top dead center of the piston (2) are ... | 12/02/1986 |
| 4572116 | Internal combustion engine An internal combustion engine has at least one chamber (2) where there is a moving working member (3), an inlet valve (4) and an outlet valve (5) as well as a compression regulation device (6). In an inlet channel (8) there is arranged a regulating valve ... | 02/25/1986 |
| 4182288 | Mixture-compressing, spark-ignited internal combustion engine having a combined throttle and compression control A mixture-compressing, spark-ignited internal combustion engine has a combined throttle and compression control. The engine has at least one main piston sliding in a main cylinder and driving a crankshaft, and an auxiliary piston sliding in an auxiliary c... | 01/08/1980 |
| 4104995 | Variable compression engine A diesel, gasoline or gas internal combustion engine adapted for operation on a two-cycle or four-cycle basis includes apparatus to vary the compression ratio of gases during operation of the engine. Two pistons, connected to separate crankshafts, communi... | 08/08/1978 |
| 3964452 | High compression internal combustion engine using a lean charge A spring-loaded piston is slidably arranged in an auxiliary chamber opening into the combustion chamber of an internal combustion engine. The spring-loading of the piston is preset so that the piston retracts at a certain high pressure attained during the... | 06/22/1976 |
| 3961607 | Internal combustion engine An internal combustion engine construction to improve thermodynamic efficiency by providing, in addition to the standard cylinders and pistons, a supplemental cylinder connected to each combustion chamber of each cylinder and, a piston in each supplementa... | 06/08/1976 |
