Class 123/560 - Two-cycle compressor feeds a four-cycle engine

Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter having a two-cycle compressor which is used
No. of patents: 25
Last issue date: 06/19/2007

Number	Title	Issue Date
7231892	Method for extending HCCI load range using a two-stroke cycle and variable valve actuation A method and system for extending the load range of Homogeneous Charge Compression Ignition (HCCI) in an internal combustion engine includes detecting a current state of the engine, detecting a load demand placed on the engine, determining if the load demand is beyo...	06/19/2007
7028650	Electromechanical valve operating conditions by control method A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled in a manner to increase fuel economy. Further, the method can adjust valve operation to regulate valve temperature. ...	04/18/2006
6945220	Starting device for internal combustion engine A starting device for an internal combustion engine is capable of increasing starting torque as well as supplying air to a cylinder that is on the expansion stroke without separately providing a means for supplying high-pressure air. Communication control valves con...	09/20/2005
6931839	Apparatus and method for reduced cold start emissions An exhaust system for an internal combustion engine having a plurality of cylinders, comprising: a exhaust manifold for providing fluid communication of exhaust of the plurality of cylinders to a catalytic converter, the exhaust manifold comprising a first exhaust p...	08/23/2005
6758185	Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu...	07/06/2004
6698405	Reciprocating internal combustion engine with balancing and supercharging A reciprocating internal combustion engine with balancing and pre-compression is provided. The internal combustion engine comprises: at least one active cylinder, at least one auxiliary cylinder positioned at right-angles to the active cylinder, the throw...	03/02/2004
6382193	Method of supercharging an engine A variable displacement internal combustion engine having an intake manifold for providing ambient air and a boost manifold is provided. Either designated cylinders or selected cylinders may be operated in a non-firing mode wherein air may be compressed i...	05/07/2002
5785015	Internal combustion engine provided with a system for direct fuel injection with pneumatic assistance The disclosed internal combustion engine comprises a single piston compressor (13) associated to each of the combustion chambers (1), said compressor sucking an air/fuel mixture and, due to the action of its discharge strokes, injects said mixture directl...	07/28/1998
5265564	Reciprocating piston engine with pumping and power cylinders An internal combustion engine power unit comprises two power cylinders (3, 4) spaced equidistant about a pumping cylinder (5). All cylinders operate on two-stroke cycles, the power cylinders (3, 4) having a phase difference of 180°. Power piston assembli...	11/30/1993
5228415	Engines featuring modified dwell Novel reciprocating engines which feature conversion units each formed of an expansion cylinder, a compression cylinder and a passageway connecting the two. Pistons in the cylinders are preferably connected via a four-bar or other linkage to the crank so ...	07/20/1993
5072589	Internal combustion engine having multiple expansion and compression A staged two-stroke internal combustion engine with reciprocating pistons wherein the cycle comprises a first compression of fresh air possibly followed by a cooling, a second compression of air or of mixture or the injection of fuel (Diesel version), a f...	12/17/1991
4998525	Air supply system for an internal combustion engine The present invention describes a system for supplying the primary combustion air to a reciprocating piston internal combustion engine including a trochoidal chamber air pump having a pair of pumping chambers interposed between an air intake and each of t...	03/12/1991
4860716	Multi-cylinder diesel internal combustion engine with low compression ratio in the cylinders During the starting and possibly at partial load, the diesel internal combustion engine operates in the so-called divided operation, whereby some cylinders (7 to 12) operate without fuel supply as compressors and supply compressed air to the cylinders (1 ...	08/29/1989
4759188	Method for introduction of charging air into the cylinder of an internal combustion engine and an engine for undertaking the method A method for the introduction of the charging air into the cylinder of an internal combustion engine, in the case of which pre-compressed air from a displacement charger is cooled by exchange of heat and is then expanded till the desired charging pressure...	07/26/1988
4709683	Internal combustion engine with a positive displacement supercharger mechanically driven from the engine crankshaft A piston-type IC engine is fitted with a mechanically driven displacement supercharger such that the displacement volume of a supercharging chamber for compression of the combustion air is made equal to the maximum requirement of an engine cylinder to be ...	12/01/1987
4671226	Supercharged multi-cylinder four-cycle diesel engine A supercharged multi-cylinder four-cycle diesel engine, in which under partial load operation some cylinders operate as engine while the other cylinders operate as compressor supplying precompressed air which serves for improving the supercharging of the ...	06/09/1987
4643156	Internal combustion engine with a positive displacement supercharger mechanically driven from the engine crankshaft A piston-type internal combustion engine is fitted with a mechanically driven displacement supercharger such that the displacement volume of a supercharging chamber for compression of the combustion air is made equal to the maximum requirement of an engin...	02/17/1987
4630444	Internal combustion engine with a combination exhaust and direct drive supercharger An internal combustion engine is connected to a supercharger operated by exhaust energy for the compression and transport of an air charge. The supercharger has at least one exhaust chamber and one air chamber which are separated from each other by a part...	12/23/1986
4572148	Diesel internal combustion engine A diesel internal combustion engine in which during the starting and partial load operation, a number of the cylinders are operated as compressor cylinders and a number as engine cylinders. The supplied charging air of one compressor cylinder (26) is used...	02/25/1986
4565167	Internal combustion engine The invention is concerned with a method of deriving mechanical work from a combustion gas in an internal combustion engine and reciprocating internal combustion engines for carrying out the method. The method includes the steps of compressing an air char...	01/21/1986
4550568	Diesel internal combustion engine In a turbocharged diesel internal combustion engine (10) with low compression ratio, at least one cylinder (11) operating as an engine cylinder is charged during starting and at partial load operation by several cylinders (18, 21, 28) operating as compres...	11/05/1985
4538584	Diesel internal combustion engine In a diesel internal combustion engine (10) having a low compression ratio, at least one cylinder (11) operating as engine cylinder is supercharged during starting and in the partial load operation by several cylinders (12, 13) operating as compressor. Th...	09/03/1985
4248198	Multi-cylinder diesel engine A multi-cylinder supercharged diesel engine with low compression ratio, in which for starting and possibly at partial load operation a number of the cylinders are operated as a compressor and the compressed air produced by the same is fed to the remaining...	02/03/1981
4202300	Internal combustion engine In an internal combustion engine intended to provide high fuel economy, low noxious emissions and high power, a pair of four cycle power cylinders are alternately fed by a two cycle charge cylinder in which a rich air/fuel mixture is compressed and delive...	05/13/1980
4191152	Multi-cylinder internal combustion engine A diesel internal combustion engine with several cylinder units each consisting of a piston and a cylinder, with a low compression ratio and with exhaust gas turbocharging, in which for purposes of starting, a number of the cylinder units operate as inter...	03/04/1980

PatentStorm

Bizarre Patents

PatentStorm News

Class 123/560 - Two-cycle compressor feeds a four-cycle engine