Class 123/65BA - Blowers

Subclass of Class 123 - Internal-combustion engines
No. of patents: 90
Last issue date: 08/12/2008

Number	Title	Issue Date
7409943	Engine braking method for a supercharged internal combustion engine In an engine braking method for a supercharged internal combustion engine, wherein combustion air, which is under boost pressure and is supplied to the cylinders under the control of engine inlet and outlet valves, is compressed in the cylinders and is subsequently ...	08/12/2008
7341040	Supercharged two-cycle engines employing novel single element reciprocating shuttle inlet valve mechanisms and with a variable compression ratio This invention relates to novel reciprocating shuttle inlet valves, effective with every type of two-cycle engine, from small high-speed single cylinder model engines, to large low-speed multiple cylinder engines, employing spark or compression ignition. Also permit...	03/11/2008
7320316	Closed crankcase ventilation system A closed crankcase ventilation system for an internal combustion engine is disclosed. A compressor is configured to compress air and enhance the venting of crankcase emissions from a crankcase of the engine. A flow path is provided between the crankcase and an intak...	01/22/2008
7320307	Manifold pressure control for a variable event valvetrain A method for improving engine intake manifold pressure control of an internal combustion engine is described. According to one aspect of the description, the manifold pressure may be controlled to reduce fuel consumption and engine emissions during at least some ope...	01/22/2008
7308869	Radial compression-ignition engine A compression-ignition internal combustion engine for aircraft generally comprises a stationary crankshaft, a crankcase adapted to rotate about the stationary crankshaft, and a plurality of cylinders radially extending from the crankcase. Each cylinder includes a pi...	12/18/2007
7225767	Conversion of an air-cooled engine to liquid cooling In some aspects of the invention the invention will relate to conversion of an existing VW air cooled engine to liquid cooling, and in still further aspects it will relate to the design of a water jacket to maximize heat rejection of a combustion chamber and piston ...	06/05/2007
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
7150273	Exhaust manifold arrangement A passageway is provided between branches of a multi-branch exhaust manifold to reduce the amount of backflow (iEGR) into the cylinders at low engine speeds. The passage is located upstream of the turbocharger and can be at the part of the manifold where the branche...	12/19/2006
7140342	Slotted cylindrical tube rotary valve assembly This invention is a slotted cylindrical rotary valve assembly for an internal combustion engine, comprising of two sets of gear driven slotted cylindrical tubes in a cradle apparatus. Each set has two tubes located co-axially and rotates co-axially, and each tube is...	11/28/2006
7118433	Outboard motor air intake system In an outboard motor air intake system, there are equipped with a secondary air passage connected to an air intake pipe at a location downstream of the throttle valve in terms of intake air flow; a manual valve installed in the secondary air passage to be operable b...	10/10/2006
7107973	Multiphase centrifugal compressor A multi-phase centrifugal supercharging system (10) configured for supplying compressed induction fluid to an engine (E) is disclosed. The air induction system (10) broadly includes a drive assembly (12) powered by the engine (E), a superchargin...	09/19/2006
7100584	Method and apparatus for controlling an internal combustion engine An engine control system determines a desired temperature range of air flowing into an intake manifold of the engine as a function of an operating characteristic, such as the load on the engine or the operating speed of the engine. A bypass conduit is provided in pa...	09/05/2006
7082910	Two-stroke internal combustion engine Crankcase scavenged two-stroke internal combustion engine (1), in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3′). The air passage is arranged from an air inlet (	08/01/2006
7082932	Control system for an internal combustion engine with a supercharger A method is provided in which a marine propulsion system with a charge air compressor is controlled through the use of a clutch or a multiple speed transmission that allows the charge air compressor to be engaged or disengaged. The engagement or disengagement of the...	08/01/2006
7007639	Air injection engine An internal combustion engine of the present invention features separate compression and expansion cycles. The engine includes a separate compressor device which pressurizes air by a ratio greater than 15 to 1, at least one two stroke combustion cylinder and a compr...	03/07/2006
6957632	Air charging system for an opposed piston opposed cylinder free piston engine A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each operatively located in a respective one of the engine cylinders, wit...	10/25/2005
6932062	Compression ignition type internal combustion engine A compression ignition internal combustion engine according to the present invention includes: at least one combustion chamber; an intake passage and an exhaust passage connected to the combustion chamber, respectively; intake valve provided at a position along the ...	08/23/2005
6918804	Personal watercraft A personal watercraft comprising a water jet pump, an engine for driving the water jet pump, and a mechanically driven supercharger provided independently of the engine and configured to draw taken-in air to the engine. ...	07/19/2005
6910550	Muffler arrangement for an internal combustion engine A muffler arrangement includes an exhaust-gas muffler, which is subdivided into an inlet space and an outlet space. An exhaust-gas stub of an internal combustion engine opens into the inlet space. Exhaust gas is conducted from the outlet space into an air channel vi...	06/28/2005
6668769	Two stroke hybrid engine A high efficiency two stroke hybrid engine includes a piston engine driving a trochoidal rotor compressor which compresses air injected into a combustion chamber as the piston approaches top dead center into which fuel is also injected during each engine ...	12/30/2003
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
6546901	Two cycle internal combustion engine A crankshaft driven positive displacement gear type air compressor enclosed within the engine housing forces air in between the compressor and reciprocating means. At approximately top dead center fuel is injected into the engine and burns. The high press...	04/15/2003
6453890	Supercharged engine A compact supercharged internal combustion engine, wherein the supercharger is mounted above the twin overhead cam cylinder head of the engine but is readily detachable from it. The drive for the pumping elements of the supercharger including counter rota...	09/24/2002
6408832	Outboard motor with a charge air cooler An outboard motor is provided with an engine having a screw compressor which provides a pressurized charge for the combustion chambers of the engine. The screw compression has first and second screw rotors arranged to rotate about vertical axes which are ...	06/25/2002
6405692	Outboard motor with a screw compressor supercharger An outboard motor is provided with an engine having a screw compressor which provides a pressurized charge for the combustion chambers of the engine. The screw compression has first and second screw rotors arranged to rotate about vertical axes which are ...	06/18/2002
6185939	Exhaust gas recirculation system Past exhaust emission control systems fail to utilize exhaust gas recirculation during all operating parameters of an engine. The present exhaust gas recirculation system reduces the emissions emitted from an engine during all operating parameters of the ...	02/13/2001
6182449	Charge air systems for two-cycle internal combustion engines A two-cycle internal combustion engine (10, 46, 66, 75, 86) has a motor-assisted turbocharger (13) where the motor (17, 56, 65, 77, 95) is activated by an external power source (18) to operate the turbocharger (13) to apply scavenging and charging air for...	02/06/2001
6170444	Air and exhaust gas management system for a two-cycle internal combustion engine The air and exhaust gas management (scavenging) system for a two-cycle internal combustion engine allows the engine to perform comparably to similar four-cycle engines, while remaining lighter, simpler and more cost-effective than its four-cycle counterpa...	01/09/2001
6135070	Two cycle 60 degree V6 and 90 degree V4 internal combustion engine Disclosed is a two cycle engine designed and configured to replace conventional four cycle engines in a modern day automobile without any alternations, while steel accepting all of the accessories (i.e. air conditioning, power steering, alternators), with...	10/24/2000
6112707	Engine fuel system with a super charged air compressor An internal combustion engine is provided with an air compressor that receives precharged air from the crankcase of the engine. By providing pressurized air to the air compressor, the mass flow through the compressor can be increased without requiring an ...	09/05/2000
6101990	Low emission power plant and method of making same A low emission power generating apparatus which comprises a modified two-stroke diesel engine component and a modified turbocharger component which has a relatively low aspect ratio. The diesel engine component is a modification of a conventional two-stro...	08/15/2000
6062177	Hand-guided working tool such as a trimmer, motor chainsaw, or cutter with an internal combustion engine with an air intake blower A hand-guided working tool has a housing and an internal combustion engine arranged in the housing. The internal combustion engine has a cylinder, a crankshaft, and a crankcase enclosing the crankshaft. An air filter box including an air filter element is...	05/16/2000
6062178	Method of operating uni-flow two-cycle engine during reduced load conditions A method of operating a two-cycle internal combustion engine under low load conditions. A throttle is placed at the intake air system to reduce air intake into the engine cylinders. A pump is placed in the exhaust system, such that it creates reduced pres...	05/16/2000
6044812	Diesel engine, modification, and method The modification of the exhaust valve of a two cycle diesel engine in order to increase the amount of the valve stem travel and hence larger annular opening, without changing the total time period or degrees of crank shaft rotation during which time the e...	04/04/2000
5908013	Two-cycle engine A two-cycle engine for boosting intake pressure for higher performance per displacement. The two-cycle engine includes a crankcase having a blower housing and a crankshaft therein extending through the blower housing. The blower housing has an intake open...	06/01/1999
5899178	Low emission power plant and method of making same A low emission power generating apparatus which comprises a modified two-stroke diesel engine component and a modified turbocharger component which has a relatively low aspect ratio. The diesel engine component is a modification of a conventional two-stro...	05/04/1999
5878703	Two stroke cycle engine An improved two stroke cycle engine is disclosed. The engine has an intake port for passing air into a cylinder of the engine and has a piston within the cylinder for reciprocal movement between a top dead center position and a bottom dead center position...	03/09/1999
5819693	Method for improving the operation of an air-scavenged supercharged heat engine, and heat engine therefor A method wherein a number of cylinders (2, 3; 1, 4) are grouped on a same exhaust gas manifold (8, 10) such that the pressure in the exhaust pipe (1e . . . 4e) undergoes time-dependent fluctuations of substantial amplitudes, and the exhaust valve (6) of a...	10/13/1998
5803027	Supercharged internal combustion engine A method of controlling the air supply to a scavenged internal combustion engine having a blower for suppling air thereto and bypass means for allowing a bypass air flow from the outlet side of the blower to the inlet side thereof, the method including re...	09/08/1998
5746163	Low emission power plant and method of making same A low emission power generating apparatus which comprises a modified two-stroke diesel engine component and a modified turbocharger component which has a relatively low aspect ratio. The diesel engine component is a modification of a conventional two-stro...	05/05/1998

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Class 123/65BA - Blowers