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Class 123/514 - Excess fuel returned to tank


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter in which the regulator includes means to
No. of applications: 73
Last issue date: 08/04/2011


1    
Application No.Application TitleIssue Date
20110186018HIGH-PRESSURE PUMP
A high-pressure pump has a metering valve and a valve stopper. The stopper has a regulation portion which an end surface of the valve is brought into contact with. An outer diameter of the regulation portion is equal to an outer diameter of the outer peripheral surface ...
08/04/2011
20110174275Fuel Supply System
Provided is a fuel supply system. The fuel supply system includes a fuel pump module mounted in a fuel tank and including a reservoir having a predetermined amount of fuel filled therein and a fuel pump mounted in the reservoir to suck the fuel filled in the reservoir a...
07/21/2011
20110168133APPROACH FOR CONTROLLING FUEL FLOW WITH ALTERNATIVE FUELS
Fuel is evacuated from a fuel rail by directing liquid fuel from the fuel rail to a fuel tank and then by directing gaseous fuel from the fuel rail to a fuel vapor canister....
07/14/2011
20110139123Aircraft Engine Fuel Supply
A centrifugal pump driven by mechanical coupling with an engine has a low pressure inlet receiving fuel from a fuel circuit of an aircraft, a high pressure outlet connected to a regulator circuit for regulating the flow rate of fuel supplied to the engine, and an assist...
06/16/2011
20110126808FUEL SUPPLY EQUIPMENT
A fuel supply equipment includes: a lid member provided with a fuel discharge pipe; a fuel pump held by the lid member and configured to suck in fuel within the fuel tank and discharge the fuel to an outside of the fuel tank from the fuel discharge pipe; a suction filte...
06/02/2011
20110067664GAS CIRCULATION ENGINE
A gas circulation engine includes a combustion chamber to which high-pressure fuel in a first high-pressure fuel supply passage, an oxidant and working gas are supplied; a circulation path that connects an intake-side portion and an exhaust-side portion of the combustio...
03/24/2011
20110023832FUEL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
A fuel system for a diesel engine has both a low pressure pump, which extracts fuel from the fuel tank, and a high pressure pump, which is fed by the low pressure pump and supplies fuel to fuel injectors. The fuel injectors supply fuel to the engine cylinders, with a sm...
02/03/2011
20100307459METHOD AND DEVICE FOR CONTROLLING A FUEL-SUPPLY SYSTEM
In a method for controlling a fuel-supply system, a first supply unit supplies fuel from a storage container to a second supply unit. At least a partial quantity of the fuel quantity supplied by the first supply unit returns to the storage container as return quantity v...
12/09/2010
20100224170FUEL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE
A high-pressure return passage returns excess fuel in a delivery pipe that is connected to an injector to a fuel tank. An upstream end of the high-pressure return passage is connected to the delivery pipe via a high-pressure regulator. A vertically lower portion of the ...
09/09/2010
20100186724ENGINE ASSEMBLY WITH FUEL FILTER GAS REMOVAL APPARATUS
An engine assembly may include an engine defining a cylinder bore, a fuel tank, a fuel supply assembly in fluid communication with the fuel tank and the cylinder bore, a fuel return assembly in fluid communication with the fuel supply assembly and the fuel tank, and a f...
07/29/2010
20100101535FUEL RAIL VENT SYSTEM
A fuel rail vent system for evacuating air from a fuel rail includes a first fuel reservoir and a first fuel line extending between the first fuel reservoir and the fuel rail. A fuel pump is configured in fluid communication with the first fuel reservoir to pump liquid ...
04/29/2010
20100065023Anti-Clogging Fuel Pump Module
A by-pass fuel system in which the plumbing of the fuel pump module is configured to ensure by-pass strained (and filtered) fuel remains separate from the reservoir fuel after by-pass such that it is not re-strained before re-entry to the fuel pump. The anti-clogging fu...
03/18/2010
20100043752FUEL SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE
A device includes two fuel injection systems and a pulsation damper. Each system includes fuel injection valves and first and second delivery pipes. While fuel is pumped to the two fuel injection systems with a common fuel pump, the device intermittently drives the fuel...
02/25/2010
20100024780FUEL DELIVERY SYSTEM FOR MULTI-FUEL ENGINE
A fuel delivery system for an internal combustion engine and a method of operating the fuel delivery system are provided. An example embodiment of the method includes: transferring at least some fuel from a first fuel storage region to a second fuel storage region via a...
02/04/2010
20100006072FUEL SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE FOR THE FUEL SUPPLY DEVICE
A fuel supply device has a main line, a fuel pump, a first return line, a second return line, a valve mechanism, a first pressure regulator, and a second pressure regulator. The fuel pump is arranged in a fuel tank or in the vicinity of the fuel tank, and pressurizes th...
01/14/2010
20090308354FUEL INJECTOR COMPRISING A PRESSURE-COMPENSATED CONTROL VALVE
The invention relates to an injector for injecting fuel into a combustion chamber of an internal combustion engine. According to the invention, an injection valve member, which opens or closes at least one injection opening, is controlled by a control valve. The control...
12/17/2009
20090308357AUTOMATIC RESIDUAL FUEL VENT DEVICE FOR CARBURETOR
An automatic residual fuel vent device for a carburetor, the device including a fuel supply passage (15) connecting a fuel tank (TF) and a float chamber (10), a negative pressure passage (17) connecting an intake passage (8) and a negative pr...
12/17/2009
20090283074FUEL SUPPLY APPARATUS
An ECU reduces a fuel flow rate discharged from an electric pump to the filter when a fuel temperature and a fuel pressure in the filter detected by a sensor portion drop. Since a mechanical pump continues to be driven without respect to the fuel quantity discharged fro...
11/19/2009
20090211559ENGINE FUEL SUPPLY CIRCUIT
A fuel supply circuit for a Diesel engine includes fuel injectors, a fuel tank, a main pump for delivering fuel to the injectors, and a variable flow charge pump for delivering fuel from the tank to an inlet of the main pump, and a surplus fuel line communicating unburn...
08/27/2009
20090205616DEVICE AND METHOD FOR REGULATING A VOLUMETRIC FLOW OF FUEL IN A LOW-PRESSURE CIRCUIT SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
The invention relates to a device for regulating a fuel volume flow in a low-pressure circuit system for an internal combustion engine with a tail for providing the fuel, from which tank the fuel can be supplied via a feed line to a high-pressure pump by a feed pump. A ...
08/20/2009
20090151700BACKPRESSURE VALVE AND FUEL SYSTEM HAVING THE SAME
A return fuel passage is configured to communicate an outlet of a low-pressure fuel pump with a back pressure side of a fuel injection device. The return fuel passage is configured to partially return fuel from the back pressure side to the fuel tank to control fuel pre...
06/18/2009
20090151705FUEL SYSTEM FOR LIQUEFIED PETROLEUM INJECTION ENGINE
A fuel system for an LPI engine according to an exemplary embodiment of the present invention may include a reservoir disposed in a fuel tank, a recovery pipe inserted in the reservoir, and a fuel pump disposed in the reservoir and supplying LPI fuel, wherein liquefied ...
06/18/2009
20090151703FUEL-FEEDING DEVICES
A fuel-feeding device may preferably include a pressure control valve capable of controlling a pressure of pressurized fuel that includes a housing having an inner cavity, a first movable dividing wall, a second movable dividing wall, a valve unit and a resilient member...
06/18/2009
20090095259Fuel System for Improved Engine Starting
A method for operating fuel system that supplies fuel to a plurality of injectors in an internal combustion engine via a first pump and a second pump with a bypass circuit coupled between the first and second pump for returning fuel to a fuel tank, the pumps connected i...
04/16/2009
20090078237FUEL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE
A high-pressure return passage returns excess fuel in a delivery pipe that is connected to an injector to a fuel tank. An upstream end of the high-pressure return passage is connected to the delivery pipe via a high-pressure regulator. A vertically lower portion of the ...
03/26/2009
20090013972SYSTEM AND METHOD FOR PRIMING A FLUID SYSTEM
A system and method is provided for automatically priming a fuel system by bleeding/purging air or vapor therefrom. The system includes a bleed valve configured to automatically move between three positions in response to the pressure of the fuel in the system. When fue...
01/15/2009
20090007527Vehicle fuel supply device
A vehicle fuel supply device 1 according to the present invention includes a fuel pump 7 for sucking fuel 5 in a fuel tank 2 via a suction filter 12 and supplying the same to a fuel supply system of an internal combustion engine; a fue...
01/08/2009
20080245346FUEL SUPPLY APPARATUS
A fuel supply apparatus particularly for the outboard motor is capable of decreasing the need to change the layout, etc., according to the specification of an engine to reduce the cost of production by preventing vapor from being discharged into an intake pipe. A low pr...
10/09/2008
20080236685DEVICE FOR AVOIDING ERRORS IN DELIVERING FLUID TO A CONTAINER
Device for avoiding fluid delivery errors, comprising a primary coil (6), placed in a container (1) in the vicinity of a fluid delivery orifice (2) of the container, a control and measurement electric circuit (7) supplying power to the primar...
10/02/2008
20080236550Vehicle fuel supply device
A vehicle fuel supply device including a saddle-shaped fuel tank comprised of a main chamber and an auxiliary chamber. A reservoir is disposed within the main chamber. A main pump is provided within the reservoir. A sub-pump is detachably provided within the reservoir. ...
10/02/2008
20080202478Pressure Control Valve for a Hydraulic Device, and Use of Said Pressure Control Valve
Disclosed is a pressure control valve (8) for a hydraulic device, particularly a fuel supply system of a motor vehicle, comprising a valve seat (10) that is disposed between a valve member (13) and a spring element (16) for biasing the valve ...
08/28/2008
20080173280CONSTANT-SPEED MULTI-PRESSURE FUEL INJECTION SYSTEM FOR IMPROVED DYNAMIC RANGE IN INTERNAL COMBUSTION ENGINE
A fuel injection system operates under a predetermined substantially constant pump speed and creates multi-pressure levels by diverting the fuel flow. Fuel pressure can be switched from one steady pressure level to another level on-demand instantly. This superimposes an...
07/24/2008
20080053414RC regulator
The way the R.C. Regulator works is that it lets fuel back into the fuel tank that is not needed. The pressure on the injectors will drop to the minimal. The vehicle may not start on the first start attempt, but will on the second. The R.C. Regulator does not rob the au...
03/06/2008
20070246022Fuel supply system with a cooling plate
A fuel supply system is disclosed that includes an electric fuel pump, a controller for controlling operations of the fuel pump, and a cooling plate that is disposed in the fuel tank and cools the controller by contacting the controller. Moreover, the system includes a ...
10/25/2007
20070227511Fuel supply system for internal combustion engine
In a fuel supply system, a fuel pump supplies fuel from a fuel tank to a fuel supply piping and to a back pressure introducing passage. A pressure regulator has a fuel pressure regulating chamber communicated to the fuel supply piping, and a back pressure chamber commun...
10/04/2007
20070227510FUEL SYSTEM WITH PRESSURE REGULATION AND PRESSURE RELIEF
A fuel supply system is provided for delivering fuel from a tank to an engine of a motor vehicle through a fuel line. The system is provided with a pressure relief valve to divert fuel from the fuel line during engine shut down conditions when fuel flow to the engine is...
10/04/2007
20070217921Jet pump, fuel feed apparatus having the same, and method for welding the same
A jet pump is provided for supplying fuel from a fuel tank into a sub-tank, which is accommodated in the fuel tank. The jet pump includes a welded portion adapted to being welded to an outer wall surface of a bottom portion of the sub-tank. A swirl portion defines there...
09/20/2007
20070181102Fuel feed apparatus
A fuel feed apparatus connects with an injector and a reservoir tank. The reservoir tank is in upstream of the injector for accumulating fuel for the injector. A fuel pump press-feeds fuel in a fuel tank toward the reservoir tank in accordance with pressure in the reser...
08/09/2007
20070163548Cooling device for a fuel-recirculation circuit
Described herein is a cooling device for a fuel-recirculation circuit from the injection system to the tank of a motor vehicle, which has a first opening and a second opening for connection to said recirculation circuit and comprises a pipe and a finned radiant body in ...
07/19/2007
20070128049Jet pump apparatus for a vehicle fuel tank
A jet pump apparatus for a vehicle fuel tank, the apparatus comprising a fuel manifold having a fuel inlet, connectable to a source of pressurised fuel, such as a fuel pump or fuel line, and a plurality of fuel outlets; a plurality of jet pumps, each jet pump having an ...
06/07/2007
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