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Class 123/324 - Part of the air or combustible mixture to the engine cylinder omitted


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter that includes means to omit a portion of
No. of patents: 30
Last issue date: 06/16/2009


NumberTitleIssue Date
7546827Methods for variable displacement engine diagnostics
Methods and systems are provided for monitoring cylinder valve deactivation in an engine operating with a plurality of cylinder valves. One example method comprises, sensing a plurality of cylinder valve positions of a plurality of cylinder valves; and combining the...
06/16/2009
7311079Engine system and method with cylinder deactivation
Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, ...
12/25/2007
7225788Fuel supply system of vehicle
A fuel supply system of a vehicle is provided with a fuel tank 10 supported on a vehicle at a level equal to or lower than that of the carburetors 16 and 17 combined with an engine 5. A vacuum fuel cut valve 12 is placed on the upp...
06/05/2007
7201143Intake amount control apparatus of internal combustion engine
An intake amount control apparatus of an internal combustion engine in accordance with the invention includes a control portion that controls an opening amount of a throttle valve provided in an intake passageway of the internal combustion engine and operation of a ...
04/10/2007
7077632Blower having a blower tube incorporating a reduction device for reducing the clear flow cross section of said blower tube at idle operation
A blower (1) has a housing (10) to which a blower pipe (2) may be removably connected. An internal combustion engine located within the housing (10) drives a blower wheel. The blower wheel, in turn, generates an air flow (11) withi...
07/18/2006
7051704Intake air control apparatus and method for internal combustion engine
An intake air control apparatus method and apparatus for an internal combustion engine in which the engine includes a variably operated valve mechanism for making at least one of an operating angle of an intake valve and a valve lift thereof variable. A determinatio...
05/30/2006
6968828Post-retard fuel limiting strategy for an engine
An engine (10) having a control system (24) that executes a control strategy (44) for limiting engine fueling upon deactivation of an engine retarder. Upon deactivation of the retarder, the strategy immediately shuts off fueling by setting the m...
11/29/2005
6957634Engine valve actuator
An engine valve actuator for an internal combustion engine is provided. The engine valve actuator includes a housing having an opening and a first fluid passageway leading to the opening. An adjustment member is disposed in the housing and includes a protrusion that...
10/25/2005
6161521Internal combustion engine having deceleration fuel shut off and camshaft controlled charge trapping
A reciprocating internal combustion engine using poppet valves, valve timing control and fuel injection, cuts off fuel during engine deceleration and controls valve timing such that charge is trapped in the engine cylinders while the fuel is shut off....
12/19/2000
5794590Engine brake for a multicylinder diesel engine
In an engine brake for a multicylinder Diesel engine having a cylinder head with at least one exhaust or decompression valve for each cylinder for controlling the discharge of gases from the cylinder, a high pressure fuel injection system with a common fu...
08/18/1998
5713331Injection and exhaust-brake system for an internal combustion engine having several cylinders
An injection system for an internal combustion engine having a plurality of cylinders is known which has a hydraulic pump with a delivery outlet to which a delivery line common to the cylinders is connected, and a plurality of injection units each of whic...
02/03/1998
5697336Engine brake for a multi-cylinder internal combustion engine
The present invention proceeds from an engine brake for a multi-cylinder internal combustion engine with decompression valves actuatable by pressurization of hydraulic pistons outside of the exhaust stroke of the working piston of the internal combustion ...
12/16/1997
5636611Arrangement for controlling air compressed in a cylinder of a diesel engine
In an arrangement for controlling the flow of compressed air from a cylinder of a Diesel engine which includes a decompression valve mounted on a cylinder to permit the discharge of compressed air from the cylinder into a discharge passage, the decompress...
06/10/1997
5609134Operating mechanism for an engine brake valve of an internal combustion engine
In an operating mechanism for an engine brake valve of an internal combustion engine which has fuel injectors mounted in the cylinder head to which pressurized fuel is delivered through high pressure fuel passages from a high pressure fuel injection pump,...
03/11/1997
5168848Engine brake for a multi-cylinder internal combustion engine
An engine brake arrangement for a multi-cylinder internal combustion engine with at least one throttle valve per cylinder which, during braking operation of the internal combustion engine, is opened at times to connect a cylinder space with an exhaust con...
12/08/1992
5161501Self-clippping slave piston
An improved slave piston for use in a compression release engine retarder is disclosed. The piston incorporates a self-clipping mechanism whereby, when appropriate, the escape of the high-pressure fluid that drives the slave piston is allowed, clipping th...
11/10/1992
5036811Four-stroke internal-combustion engine
A four-stroke internal-combustion engine for a motor vehicle having inlet and exhaust valves is provided with additional outlet valves for each cylinder, which valves are adjustable by means of an actuating device and with a throttle flap arranged in the ...
08/06/1991
5022367Engine brake system of a two-cycle engine for a motor vehicle
A two-stroke engine has a scavenge pump provided in an intake passage. A valve is provided in the intake passage downstream of the scavenge pump. When deceleration of a vehicle is detected, the valve is operated to partially close the intake passage....
06/11/1991
4700673Method of controlling the operating characteristic quantities of an internal combustion engine
A method for controlling the operating characteristics of an internal combustion engine is disclosed. An injection signal for metering fuel and an idling charge signal for the supply of idling air are present. Engine overrun is also recognized in this met...
10/20/1987
4515124Engine control system
A control system for an internal combustion engine of a vehicle equipped with an automatic transmission, comprises a first device for detecting an operating parameter in relation to vehicle cruising, a second device for detecting an engine temperature, an...
05/07/1985
44454682-Stroke internal combustion engine and an ignition-combustion method of an internal combustion engine
A 2-stroke engine having a combustion chamber and a scavenge port which is open to the combustion chamber. When the engine is operating under a light load in which a large amount of unburned components, incompletely burned components and oxygen remains in...
05/01/1984
4341188Two-cycle internal combustion engine including means for varying cylinder port timing
The two-cycle internal combustion engine includes an engine block having a cylindrical wall defining a cylinder having a head end, a piston mounted for reciprocative movement in the cylinder, and a passage in the engine block, such as an exhaust passage, ...
07/27/1982
4291656Method of controlling the rotational speed of an internal combustion engine
The flow rate of intake air sucked into an internal combustion engine when a throttle valve of the engine is at the idling position is controlled so that the actual rotational speed of the engine becomes equal to a desired value. This desired value of the...
09/29/1981
4289094Two-stroke cycle gasoline engine
A two-stroke cycle gasoline engine having a first scavenging port which is supplied with fuel-air mixture through a mixture passage, and a second scavenging port which is supplied with air, wherein supply of fuel-air mixture through the mixture passage is...
09/15/1981
4159701System for controlling fuel supply in internal combustion engine
A system for controlling or interrupting the fuel supply in an internal combustion engine operating under a braking condition, in response to the vacuum level in its intake system. This system is equipped with an air pump driven by an output shaft of the ...
07/03/1979
4124012Fuel saving apparatus and spark plug therefor
A fuel saving apparatus for an internal combustion engine having a plurality of cylinders each having a spark plug therein. The apparatus comprises a valve means for stopping fuel flow to predetermined cylinders and means for venting each of these cylinde...
11/07/1978
4106471Internal combustion engine system with an air-fuel mixture shut off means
An air-fuel mixture shut off means connected to selected branch tubes of an intake manifold of the engine and includes dampers swingably mounted in the selected branch tubes and a controller operable to close the dampers when the engine is decelerated....
08/15/1978
4092970Controlling internal combustion engines
A device for controlling maximum speed and/or acceleration of a diesel engine by means of a spring-loaded valve located upstream on the air inlet manifold. The valve, which normally is open, operates on a pressure differential basis and is designed to clo...
06/06/1978
4091777Electronic control circuit for a carburetor device
A control circuit for delivering control signals to interrupt admission of the fuel-air mixture in the low speed and idle circuit of the carburetor of an internal combustion engine. The control circuit is operated according to the engine operating conditi...
05/30/1978
3977372Carburetor vacuum shutoff control valve
A carburetor vacuum shutoff control valve for motor vehicles includes a snap-action spring which senses the the sudden vacuum increase in the carburetor each time the vehicle decelerates. The spring opens the valve during deceleration to allow air to pass...
08/31/1976
 
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