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| Number | Title | Issue Date |
| 7370626 | High compression spark-ignition engine with throttle control, externally supplied ignition, and direct fuel injection into a precombustion chamber The invention relates to a spark-ignition engine with a highly structural compression ratio greater than 15:1, throttle regulation, externally supplied ignition and with direct fuel injection into a precombustion chamber, which is connected to the main combustion ch... | 05/13/2008 |
| 7204225 | Internal combustion engine with auxiliary combustion chamber An internal combustion engine includes a main combustion chamber and a small auxiliary combustion chamber. The main chamber is formed by a cylinder, the undersurface of a cylinder head, and the crown of a piston. A main ignition unit is disposed in the cylinder head... | 04/17/2007 |
| 7104246 | Spark ignition modifier module and method A multi-part module including a flame cone and a connector adapted to be interposed between the normal spark plug port in an internal combustion engine block and a spark plug suitable for use with the engine in question. In the method, a quantity of fuel/air mixture... | 09/12/2006 |
| 7100567 | Method to extend lean ignition limit within internal combustion engine A method of operating an internal combustion engine is provided. The engine includes a main combustion chamber in fluid communication with a prechamber. The method comprises the step of varying the volume within the prechamber during a portion of a compression strok... | 09/05/2006 |
| 7066137 | Anti detonation device and method for internal combustion engines A flame ejector device for mounting in the spark plug aperture of an internal combustion engine whereby an inner end of the device is within the combustion chamber, the device being configured to receive a fuel-air mixture charge on the compression stroke of the pis... | 06/27/2006 |
| 7056053 | Bolting arrangement including a two-piece washer for minimizing bolt bending A two-piece washer to allow tilting movement of the washer elements. One annular washer element includes a convex annular surface that engages with a concave annular surface of a second annular washer element. When the convex and concave surfaces of the respective w... | 06/06/2006 |
| 6968267 | Computing method of engine intake air amount and air fuel ratio control method and apparatus using the same A computing method of an engine intake air amount for determining a fuel injection amount comprises a step of computing an engine intake amount in real time by using a relational expression between an engine speed and an intake manifold pressure expressed by Qc... | 11/22/2005 |
| 6662763 | De' sax' e two cycle engine, constant pressure adiabatic compound "C.P.A.C." A reversible heat, constant pressure 2-cycle engine that takes ambient air and heats it up before mixing it with fuel, so that even a very lean mixture of air and fuel is highly combustible, to provide increased fuel economy and decreased fuel consumption... | 12/16/2003 |
| 6443118 | Combustion-engined tool having a combustion chamber with a controllable pressure build-up A portable, combustion-engined tool including a combustion chamber (1) in which a fuel gas in combusted upon ignition for building up pressure in the combustion chamber for driving the tool piston (8), an ignition device (20) for igniting the fuel gas in ... | 09/03/2002 |
| 6161516 | Process for the formation of a fuel mixture and for its ignition in a pre-chamber that is open toward the cylinders Process for ensuring the mixing of a predetermined quantity of liquid or gaseous fuel with the air that is contained in a pre-chamber with one end that is open toward cylinders of an alternative internal-combustion engine, as well as the ignition of the m... | 12/19/2000 |
| 6125813 | Prechamber combustion for a rotary diesel engine A fuel injection, ignition, and combustion system for use in a rotary internal combustion engine of the diesel type and method of power extraction is provided. The fuel combustion system includes a rotary engine with a prechamber disposed in a top center ... | 10/03/2000 |
| 6119650 | Energy conservation cycle engine An energy conservation cycle engine which protects environmental pollution by reducing NOx gases, unburned materials and increases the specific output power per weight by reducing friction-loss and vibration, by reducing the wall thickness of the main com... | 09/19/2000 |
| 5934244 | Combustion prechamber A combustion prechamber is formed by at least two components. An upper component for accommodating an injection device, for example, and a lower component for sealing the prechamber off from the main combustion chamber. To configure such a combustion pre-... | 08/10/1999 |
| 5237971 | Valve stem seal assembly A valve stem seal assembly for installation about a valve stem surrounded by a valve guide includes a sleeve-like elastomer body having the following four components: (1) an annular, outer, oil-sealing lip for sealingly surrounding the valve stem in the i... | 08/24/1993 |
| 5111786 | Air cell for an internal combustion engine An internal combustion engine having an air cell combustion system includes a cylinder block having at least one bore with a piston reciprocably housed therein, and a cylinder head attached to a cylinder block, with the cylinder block, piston and cylinder... | 05/12/1992 |
| 4926818 | Pulsed jet combustion generator for premixed charge engines A method and device for generating pulsed jets which will form plumes comprising eddie structures, which will entrain a fuel/air mixture from the head space of an internal combustion engine, and mixing this fuel/air mixture with a pre-ignited fuel/air mix... | 05/22/1990 |
| 4696269 | Device for improving the ignition of fuel-air mixtures in internal combustion engines A flame ignitor for internal combustion engines. This flame ignitor is, in one embodiment, an insert unit to be received in, for example, a conventional spark plug hole of an engine. It is to project into the combustion chamber of the engine a sufficient ... | 09/29/1987 |
| 4646695 | Device for improving the ignition of fuel-air mixtures in internal combustion engines A flame ignitor for internal combustion engines. This flame ignitor is, in one embodiment, an insert unit to be received in, for example, a conventional spark plug hole of an engine. It is to project into the combustion chamber of the engine a sufficient ... | 03/03/1987 |
| 4596214 | Combustion chamber system for kerosine internal combustion engine A combustion chamber system of a kerosine internal combustion engine including a main combustion chamber and an auxiliary combustion chamber both of which are defined in a cylinder head and are spaced from each other by a partition. A plurality of communi... | 06/24/1986 |
| 4465033 | Energy conversion cycle for internal combustion engine and apparatus for carrying out the cycle An energy conversion cycle for an internal combustion engine and an internal combustion engine capable of carrying out the process to produce work, the process characterized by the steps of forming fuel and air charges having fuel to air proportions varyi... | 08/14/1984 |
| 4444166 | Method and apparatus for reducing the operating compression ratios of compression ignition engines A method and apparatus for combusting diesel, gasoline, kerosene, alcohol and other compression ignition fuels in either direct or indirect injection compression auto ignition internal combustion engines which enables such engines to operate at low compre... | 04/24/1984 |
| 4433647 | Internal combustion motor with turbulence chamber In accordance with the teachings of the present invention an internal combustion engine comprising at least a combustion chamber, a piston, a turbulence chamber provided inside the overhead cylinder above the piston, and an ignition device leading to the ... | 02/28/1984 |
| 4416228 | Separately ignited internal combustion engine with at least one main combustion chamber and an ignition chamber An ignition chamber unit to be arranged on a main combustion chamber of an internal combustion engine has walls forming a separate ignition chamber having a first wall which separates the ignition chamber from the main combustion chamber and has at least ... | 11/22/1983 |
| 4183343 | Internal combustion engine and a method of operating an internal combustion engine Disclosed is an internal combustion engine having a combustion chamber. A squish area is formed in the combustion chamber between the peripheral portion of the inner surface of the cylinder head and the peripheral portion of the top surface of the piston.... | 01/15/1980 |
| 4182279 | Combustion chamber of an internal combustion engine Disclosed is a combustion chamber of an internal combustion engine. A first raised portion having a flat bottom is formed on the inner wall of the cylinder head so that a first flat squish area is formed between the flat bottom of the first raised portion... | 01/08/1980 |
| 4180044 | Torch ignition type internal combustion engine A torch ignition type internal combustion engine with no intake valve in the auxiliary combustion chamber, the engine comprising: a cylinder; a cylinder head; a reciprocating piston received snugly in the cylinder; a main combustion chamber defined betwee... | 12/25/1979 |
| 4178903 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine having no intake throttle valve and comprising a main chamber and an auxiliary chamber which are interconnected with each other via a connecting passage. An annular raised portion is formed on the inner wall of t... | 12/18/1979 |
| 4176649 | Emission control An internal combustion engine and a method of operating same, comprising a combustion chamber having main and auxiliary sections. The air-fuel mixture compressed in the combustion chamber causes turbulence and swirling of the mixture in the auxiliary sect... | 12/04/1979 |
| 4176646 | Method of igniting in an internal combustion engine Disclosed is a method of igniting in an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber which are interconnected to each other by a connecting passage. The spark gap of the spark plug is located in the c... | 12/04/1979 |
| 4175501 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber which are interconnected to each other via a connecting passage. The auxiliary combustion chamber symmetrically extends about an axis. The ... | 11/27/1979 |
| 4175531 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine comprising a main combustion chamber, a first auxiliary combustion chamber and a second auxiliary combustion chamber. The first auxiliary combustion chamber is connected to the main combustion chamber via a first... | 11/27/1979 |
| 4175533 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber which are interconnected to each other via a connecting passage. The opening of the connecting passage is arranged to be directed to the ce... | 11/27/1979 |
| 4174679 | Internal combustion engine with a subsidiary combustion chamber An internal combustion engine comprising a subsidiary combustion chamber connected to a main combustion chamber via a connecting passage. The subsidiary combustion chamber is divided into a first chamber and a second chamber by an annular raised portion f... | 11/20/1979 |
| 4166436 | Combustion chamber of an internal combustion engine Disclosed is an internal combustion engine comprising a cylinder head and a piston. A recess is formed on the inner wall of the cylinder head or on the top surface of the piston. The recess defines a combustion chamber when the piston reaches the top dead... | 09/04/1979 |
| 4149511 | Torch ignition type internal combustion engine A torch ignition type internal combustion engine which has no intake valve in the auxiliary combustion chamber and which can effectively purge exhaust gases from the auxiliary combustion chamber to eliminate ignition failures, the engine comprising a cyli... | 04/17/1979 |
| 4147150 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber which are interconnected with each other via a first connecting passage. A second connecting passage communicating the first connecting pas... | 04/03/1979 |
| 4132212 | Torch-ignition internal combustion engine A torch-ignition internal combustion engine has a trap chamber formed in the engine cylinder head and communicated with a main combustion chamber through a plurality of torch apertures. An intake port extends through the cylinder head to the main combusti... | 01/02/1979 |
| 4108133 | Internal combustion engine having an auxiliary combustion chamber without an intake valve An auxiliary combustion chamber shell of an internal combustion engine comprising a main combustion chamber having an intake valve and an exhaust valve, an auxiliary combustion chamber having no intake valve, a passage communicating the main and auxiliary... | 08/22/1978 |
| 4108136 | Internal combustion engine control system An apparatus and method for improving the combustion process of an internal combustion engine is disclosed. A prechamber containing a combustible mixture is designed to generate a torch eminating therefrom upon ignition; the torch is controlled to extend ... | 08/22/1978 |
| 4106448 | Internal combustion engine and method of operation All of combustion chambers receive a lean air-fuel charge at low and medium engine power demands. As the engine power demand increases, a rich air-fuel charge is supplied to one or a suitable number of the combustion chambers with countermeasures being pr... | 08/15/1978 |
