Class 123/198DB - Fuel cut-off

Subclass of Class 123 - Internal-combustion engines
No. of applications: 35
Last issue date: 11/10/2011

Application No.	Application Title	Issue Date
20110271928	DETERMINATION OF AN OVERSPEED-SHUTDOWN EVENT IN A COMBUSTION ENGINE Methods and systems are provided for detecting an overspeed shutdown condition of an internal combustion engine. The pressure within an air-intake manifold of the engine is measured, and that pressure is compared to a predetermined pressure, which represents the pressur...	11/10/2011
20110196596	METHOD AND DEVICE FOR PREVENTING WATER DAMAGE IN INTERNAL COMBUSTION ENGINES A method for preventing a water impact in an internal combustion engine includes: detecting whether water has entered an air supply system of the internal combustion engine; and stopping the internal combustion engine if it is determined that water has entered....	08/11/2011
20110114055	Method for operating a combustion engine A combustion engine (1) has a carburetor (17) for supplying an air/fuel mixture. An intake channel (16) is formed in the carburetor (17) and fuel is drawn into the intake channel because of the underpressure which forms during operation. The ...	05/19/2011
20080208440	CONTROLLER OF INTERNAL COMBUSTION ENGINE A glow plug is provided in a combustion chamber of a diesel engine. An ECU diagnoses existence or nonexistence of a disconnection abnormality of the glow plug through a controller. When there is an abnormality in the glow plug, processing for cutting fuel supply of an a...	08/28/2008
20080178850	FUEL SYSTEM WITH DRAIN UNIT A fuel system for a carburetor that supports operation of an engine includes a body with a bore, a fuel source communicated with the bore and from which fuel is supplied to the bore for delivery to the engine, a drain unit and a control. The drain unit is communicated w...	07/31/2008
20080156290	FLOW DAMPER A flow damper includes a valve body, a piston, a spring, and a cap. The valve body is fastened to the rail main body and has a fuel passage therein. The fuel passage communicates between a fuel hole of the rail main body and the injector. The fuel passage includes a pis...	07/03/2008
20080141973	Hybrid Cycle Rotary Engine An internal combustion engine includes in one aspect a source of a pressurized working medium and an expander. The expander has a housing and a piston, movably mounted within and with respect to the housing, to perform one of rotation and reciprocation, each complete ro...	06/19/2008
20080047522	Low fuel shut off for a portable welder generator A low fuel shut off for a portable engine-driven welder is disclosed that disables the engine when the fuel level drops below a desired level. The system includes a controller configured to receive the current fuel level signal from a fuel sensor positioned in or near t...	02/28/2008
20070234999	Throttle regulator for vibration compaction machine An engine stop switch and a fuel open-close lock are accommodated in a throttle lever case so that they can be easily disassembled, and the engine stop switch is turned on and off and the fuel open-close cock is opened and closed adequately by the actuation of a rotary ...	10/11/2007
20070181088	Control Apparatus of Direct Injection Internal Combustion Engine The present invention provides a control apparatus of a direct injection internal combustion engine used in an idling stop vehicle or the like, which can reduce residual fuel generated in a combustion chamber in an engine stop time, and prevent deterioration of exhaust ...	08/09/2007
20070137917	GOLF CAR WITH FUEL INJECTED ENGINE AND METHOD FOR STARTING SAME A system and method of operation for golf cars or the like employing electrically operated fuel injected engines for that can be operated in substantially the same manner as electrically powered cars to effect rapid restarting of the engine after stopped and with the ma...	06/21/2007
20070113820	Method and device for operating an internal combustion engine having multiple cylinders A method and a device for operating an internal combustion engine having multiple cylinders allows for an operating state of the internal combustion engine to be switched over as quickly as possible following the receipt of a switchover request. For this purpose, at lea...	05/24/2007
20070044761	Internal combustion engine and method of detecting abnormality of internal combustion engine When fuel supply is stopped while an engine is decelerating, pressure in each cylinder is detected using a pressure sensor, and the peak value of the pressure in each cylinder is determined. Also, an intake air amount is detected when the fuel supply is stopped, and the...	03/01/2007
20070044769	Control circuit for injectors having cut solenoids for LPI engines and cut solenoid control method and diagnostic method thereof The present invention provides a control circuit for an injector having a cut solenoid for an LPI engine, a control method of the cut solenoid and a diagnostic method thereof. The present invention effectively prevents fuel from leaking through an injector to the atmosp...	03/01/2007
20070006840	Operating apparatus for controlling a vibratory rammer An operating apparatus (1) controls working revolutions of a vibratory rammer. The operating apparatus (1) includes an operating lever (4) movable between an idle position (2) and a stop position (3) and an engine switch-off function (...	01/11/2007
20060278202	Method and device for improving the starting response of an internal combustion engine The present invention relates to methods for charging at least one combustion chamber (12) of a spark-ignition combustion engine (10) with fuel and air. At least one combustion chamber charge is produced during a shutoff phase of the internal-combustion en...	12/14/2006
20060260587	Controlling evaporative emissions in a fuel system Methods and fuel systems to reduce evaporative emissions of a volatile fuel. A fuel tank contains fuel, a carburetor mixes air with the fuel from the fuel tank, and a plurality of fluid paths route fuel amongst and/or between the fuel tank and the carburetor. A valve ac...	11/23/2006
20060219218	Operating apparatus of engine in portable working machine Disclosed is an operating apparatus of an engine in a portable working machine which improves an operability of a throttle lever while preventing a Run-on phenomenon or the like. The operating apparatus is provided with a first operating device for operating a throttle ...	10/05/2006
20060180119	Reducing acoustic noise of an engine having electromechanical valves A system and method for controlling randomly operable valves in an engine is presented. According to the method, valve lift is used to create a Helmholtz resonator from a deactivated cylinder. The method can reduce engine pressure based audible noise for variable displa...	08/17/2006
20060157014	Apparatus for controlling engine An engine has variable-valve mechanisms. An engine control system has an engine control unit for executing automatic stop and start control. At an automatic-stop, the variable-valve mechanisms are controlled to obtain a valve operation characteristic suitable for a rest...	07/20/2006
20060157006	Method of operating a single cylinder two-stroke engine The invention is directed to a method for operating a two-stroke engine having a cylinder in which a combustion chamber is formed and which includes devices for metering fuel and supplying combustion air as well as an ignition device for igniting a mixture in the combus...	07/20/2006
20060102152	Electronic flow control valve An internal combustion engine is provided that includes a high pressure feed line, and a plurality of fuel injectors fluidly connected to the high pressure feed line, each being operable to inject a fuel into the engine. The engine further includes an electronically con...	05/18/2006
20060054141	Liquefied gas-delivering device for diesel engine Since an aspirator 7 is disposed at a position lower than a fuel gallery 11 and an overflow fuel pipe 81, DME fuel remaining in the fuel gallery 11 and the overflow fuel pipe 81 can be more efficiently retrieved to a fuel tank 4	03/16/2006
20060048752	Low evaporative emission fuel system depressurization via solenoid valve A fuel delivery system is provided with a fuel solenoid valve to minimize fuel leakage and evaporative emissions during diurnal cycles by preventing pressure buildup as the temperature of the fuel system rises. The fuel solenoid valve is located between a pressurized si...	03/09/2006
20060030997	Automatic engine shutdown apparatus An automatic engine shutdown apparatus for automatically shutting down an engine under a predetermined running or operating condition. The apparatus includes a vehicle speed sensor for detecting a vehicle speed, a throttle sensor for detecting a throttle opening, a trav...	02/09/2006
20060030998	Engine 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, cata...	02/09/2006
20060027215	Fuel injection controller of engine An electronic control unit compulsorily stops supply of a fuel injection quantity, which is calculated based on various parameters including a throttle opening degree, performed by an injector in accordance with a crank angle signal if a series of operations, of rapidly...	02/09/2006
20060005817	Fuel fume gas trap device and air intake system including the same An actuator actuates a fuel fume trap to open and close an intake air passage to prevent reverse flow of fuel fumes through the intake air passage connected to a downstream side of an air cleaner. ...	01/12/2006
20050252493	Fuel stop safety switch In order to fully understand how the Fuel Stop Safety Switch functions, it is essential for a general understanding of the normal function of the fuel injection system. We start with the driver pressing the accelerator pedal, this sends a command through it's throttle p...	11/17/2005
20050211194	Controlled starting and braking of an internal combustion engine An internal combustion engine may be provided with independently controllable valves, fuel injectors and ignition elements that may be used to start the engine without a separate auxiliary device such as an electric starter motor. The engine may fire the cylinders under...	09/29/2005
20050205049	Engine shut-down for engine having adjustable valve timing A method for operating at least an intake and exhaust valve in a cylinder with a piston of an engine in a vehicle, comprising during conditions of an engine shut-down, maintaining at least one of the intake and exhaust valves in a closed position, and during conditions ...	09/22/2005
20050199209	Engine stoppage notification apparatus The present invention provides an engine stoppage notification apparatus with which, due to its compatibility with and good correspondence to the intention of a driver to start off a vehicle and to stop and idle the vehicle, it is possible to anticipate the possibility ...	09/15/2005
20050188939	Control apparatus for driving vehicle and control method for driving vehicle Large vibrations can be prevented from being generated during engine rotation. A control apparatus for driving a vehicle has an engine stop permission output control processing module which: reads engine rotational speed; determines whether the engine rotational speed t...	09/01/2005
20050171681	Method and system for preventing rear end collision of vehicles A kind of method and system for preventing rear end collision of vehicles are intended to apply to the vehicles equipped with the electric fuel injection system. By using a fuel-decreasing pre-warning electric control unit standing for PW-ECU, the throttle value D of th...	08/04/2005
20050061293	SYSTEM AND METHOD FOR IMPROVED ENGINE POSITION SENSING A method is provided for controlling an engine in a vehicle to facilitate determination of engine position sensor correction factors. The vehicle includes a motor, which is operatively connected to the engine, a sensor configured to detect engine position, and a control...	03/24/2005

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Class 123/198DB - Fuel cut-off