Class 123/169V - Valved

Subclass of Class 123 - Internal-combustion engines
No. of patents: 24
Last issue date: 06/12/2007

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Number	Title	Issue Date
7228840	Spark ignition device and internal combustion engine with the same A plurality of spark electrodes are disposed in an arc shape on the surface or so as to be projected from the surface of an insulating member formed on a part of the wall face of a combustion chamber, and are formed so as to be in series electrically via discharging...	06/12/2007
7185632	Internal combustion engine and method of operating the same An internal combustion engine (20) has a cylinder (1) wherein a piston (2) is mounted. The piston (2) drives a crankshaft (10) which is rotatably journalled in a crankcase (11). The piston (2) delimits a combustion ch...	03/06/2007
6382159	Temperature and pressure activated pressure relieving spark plug A spark plug for venting excessive engine cylinder pressure may be either pressure or temperature activated. A vent passage is created in a conventional spark plug by drilling an air vent through the housing of a conventional spark plug to a point that ex...	05/07/2002
6240888	Internal combustion engine decompression valve kit and method for making same The invention is a decompression kit for large bore and/or high compression internal combustion engines. Specifically designed for engines such as the "Harley-Davidson.RTM." "V-Twin.RTM." or the "Sportster.RTM." models, the invention vents high cylinder p...	06/05/2001
5937813	Resettable pressure relieving spark plug A pressure relieving spark plug for use with an internal combustion engine. The pressure relieving spark plug functions as a conventional spark plug under normal operating conditions; however, upon the development of abnormal conditions, such as excessive...	08/17/1999
5873340	Spark plug for venting excessive pressure An internal combustion engine spark plug provides an overpressure release mechanism to avert engine component damage as a result of hydrostatic lock caused by liquids (typically water) entering the combustion chamber under operating conditions. This spark...	02/23/1999
5343699	Method and apparatus for improved operation of internal combustion engines A process for operating an internal combustion heat engine which comprises the steps of thermochemically regenerating waste heat rejected by the heat engine by reacting at least one conventional fuel compound containing hydrogen and carbon with an oxygen ...	09/06/1994
5245959	Air bypass spark plug This invention relates to a novel ignition plug, for use in an internal combustion engine, that has an insulator comprising a hollow decompression chamber arranged about a central electrode, an air injection inlet and multiple outlets sized to restrain th...	09/21/1993
4967708	Fuel injection valve In lean operation of internal combustion engines having externally supplied ignition, improvement in terms of fuel consumption and emissions are obtained if the fuel is injected directly into the combustion chamber. Because the gas exchange guide cross se...	11/06/1990
4859900	Ignition plug for improving fuel economy of an internal combustion engine and decreasing the amount of toxicants expelled to the environment An ignition plug for use in an internal combustion engine comprises a plug main body, a central electrode embedded to the inside thereof and having a tubular structure through which atmospheric air is introduced to the inside of cylinder for the complete ...	08/22/1989
4823746	Engine ignitor with integral compression release valve The present invention provides an improved engine ignitor with integral pressure release vent to minimize flooding and/or hydraulic locking of internal combustion engines, particularly, single cylinder engines such as model airplane engines, lawn mower en...	04/25/1989
4699096	Detonation prevention means for internal combustion engine The combustion chamber of an internal combustion engine is provided with a vent passage. The passage is normally closed by a valve which opens in response to an opening pressure having a predetermined magnitude intermediate the magnitude of the normal com...	10/13/1987
4503817	Annular valve stratified charge spark ignition engines An internal combustion engine having an annular port and valve arranged to direct flow from dual inner and outer portions of the port in cylinder flow patterns having radially oppositely directed flow components. Various embodiments providing cylinder cha...	03/12/1985
4469059	Spark plug A spark plug for igniting air-fuel mixtures, comprising: an elongated annular body with an axial bore; dividing the bore into a valve chamber and a compression chamber; and, a valve disk, slidingly disposed in the valve chamber, the valve disk being subje...	09/04/1984
4235214	Secondary air guide ring for ignition plug A secondary air guide ring for an ignition plug, which is mounted on the outer periphery of a male thread of an ignition plug for mounting the same ignition plug in a cylinder head and provides a hermetical seal between the ignition plug and cylinder head...	11/25/1980
4207855	Fuel conservation system for internal combustion engines A system is provided for varying the number of active cylinders in a multi-cylinder internal combustion engine, in response to the operating requirements of the engine. When the engine reaches that part of its operating range where the torque requirement ...	06/17/1980
4202307	Ignition plug An ignition plug for an internal combustion engine which comprises a hollow cylindrical main body having one externally threaded end portion and the other end portion in the form of a nut, said threaded end portion being provided with jet orifices, air gu...	05/13/1980
4164912	Method for reducing pollution due to an internal combustion engine The method comprises, after the end of the normal combustion of the mixture in the combustion chamber of the engine, establishing a post-combustion by maintaining a series of high-tension sparks during a long period and introducing turbulent additional ai...	08/21/1979
4132209	Method and means for reducing pollutants from the exhaust of hydrocarbon fuel combustion means Method and apparatus for reducing the nitrogen oxide component from the oxygen-poor combustion products of a hydrocarbon fuel combustion device, which product would ordinarily contain an undesirable excess quantity of oxides of nitrogen. The method and ap...	01/02/1979
4105010	Fuel saving apparatus for multiple cylinder internal combustion engines A fuel saving apparatus for controlling the supply of fuel to one or more selected cylinders of a multi-cylinder internal combustion engine comprises a remotely and independently controlled fuel saving valve operably positioned to provide selective commun...	08/08/1978
4079721	Safety cut-off for internal combustion engine A safety cut-off for a two-cycle gasoline engine in which a common actuating arm both causes an interruption of the ignition circuit and operates a valve to release pressure from the combustion chamber....	03/21/1978
4061113	Process for reducing the pollution due to an internal combustion engine, and an engine including the application of said process The process comprises producing in a combustion chamber of the engine a high-tension electrical discharge, prolonging the duration of the discharge, and supplying additional air in the vicinity of the discharge so as to form a plasma and cause a post-comb...	12/06/1977
4018204	Fuel saving apparatus for multiple cylinder internal combustion engines Fuel saving apparatus for controlling the supply of fuel to one or more selected cylinders of a multi-cylinder internal combustion engine comprises a remotely and independently controlled fuel saving valve operably positioned to provide selective communic...	04/19/1977
3980067	Primer valve for model engines A primer valve for a 2-cycle model engine attached to an accessible portion of the engine to facilitate starting thereof. The valve is provided with direct access to the engine cylinder and with a check valve responsive to the continuous positive internal...	09/14/1976

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Class 123/169V - Valved