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Class 123/179.14 - Condition responsive


Subclass of Class 123 - Internal-combustion engines
Definition: Apparatus wherein the means for supplying a mixture operates
No. of patents: 53
Last issue date: 09/04/2007


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NumberTitleIssue Date
7264224Valve with offset venturi
A valve is disclosed having a valve closing member that divides the valve bore into passageways of unequal cross sectional areas when in an open position. A venturi is positioned within the valve bore upstream of the valve closing member. The throat of the venturi m...
09/04/2007
7263967Internal combustion engine with auxiliary combustion chamber
An internal combustion engine includes a main combustion chamber, an auxiliary combustion chamber, a fuel reforming unit, and a control unit. The auxiliary combustion chamber is configured and arranged to communicate with the main combustion chamber. The fuel reform...
09/04/2007
7245050Internal combustion engine
A journal of a crankshaft is rotatably supported by a journal-supporting portion of a cylinder block and a bearing cap. An arcuate oil guide groove is defined in a side face of the bearing cap, and coils which are portions of a stator of a generator or motor are fit...
07/17/2007
7231460System and method for leveraging networked computers to view windows based files on Linux platforms
Systems and methods for leveraging resources on a computer network to view a file on a client computer written in a format unreadable by the client computer are provided. According to one method, the client computer receives a file in a source format unreadable by t...
06/12/2007
7201128Fuel supply system for internal combustion engine with direct fuel injection
In a fuel supply system for an internal combustion engine with direct fuel injection including a fuel supply pump and, downstream thereof, a high pressure pump for supplying high pressure fuel to a plurality of injectors and, parallel to the high pressure fuel pump,...
04/10/2007
7185623Carburetor start pump circuit
A carburetor start pump circuit, for starting an engine has an auxiliary fuel pump mounted on a relatively standard carburetor body, a start pulse passage extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake side whic...
03/06/2007
7107955Auxiliary fuel injection unit in internal combustion engine and control device for auxiliary fuel injection unit
An auxiliary fuel injection unit includes two surge tanks partitioned by a wall surface, a butterfly valve for switching between connection and disconnection of two surge tanks, and one auxiliary fuel injection valve for injecting an auxiliary fuel in a direction op...
09/19/2006
7051692Starting system for a marine engine
An engine starting fuel enriching system provides a valve that is located downstream of an air feed conduit that is connected in fluid communication with a first fuel conduit. The fuel conduit is connected between a fuel reservoir and the valve. When the valve is in...
05/30/2006
7028655Internal combustion engine and method of controlling the same
The internal combustion engine includes a reformer for reforming a fuel air mixture of a predetermined fuel and air to produce a reformed fuel, a bypass pipe for supplying air to the reformer, an on-off valve provided in the bypass pipe, and an ECU. The ECU makes th...
04/18/2006
7021261Method, computer program control and regulating unit for operating an internal combustion engine, as well as an internal combustion engine
In an internal combustion engine, the fuel is conveyed by an electrically driven fuel pump. The intake side of this pump is connected to a fuel tank and its outlet side is connected to a pressure region. A prerun of the electrically driven fuel pump may be performed...
04/04/2006
6932058Carburetor arrangement for an internal combustion engine
A carburetor arrangement is provided for an internal combustion engine that is to be started with a pull cord. A fuel channel that is connected with a fuel-filled storage space opens into and supplies fuel to an intake channel portion as a function of the underpress...
08/23/2005
6918367Method for starting an internal combustion engine, particularly an internal combustion engine having direct fuel injection
During a start, particularly during a cold start, of an internal combustion engine without additional auxiliary drive, a precisely metered fuel mass is introduced into a combustion chamber. In the case of an internal combustion engine having direct fuel injection, a...
07/19/2005
6913250Carburetor arrangement
A carburetor arrangement for an internal combustion engine in a manually guided implement, such as a power chainsaw, a cut-off machine, etc. is provided. A regulating chamber delimited by a regulating diaphragm is provided. Upon deflection of the diaphragm due to un...
07/05/2005
6799545Carburetor start pump circuit
A carburetor start pump circuit, for starting an engine has an auxiliary fuel pump mounted on a relatively standard carburetor body, a start pulse passage extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake side whic...
10/05/2004
6799558Internal combustion engine and method for operating an internal combustion engine
An internal combustion engine having one injection valve (3) per cylinder and at least one additional port injector (5) for injecting fuel into combustion air which is fed to the cylinders (2) in the intake tract (4). The port injector (
10/05/2004
6769418Engine fuel system with vapor generation for engine cold starting
An engine fuel system includes liquid fuel delivery for normal engine operation and fuel vapor generation for use in cold starting on fuel vapor alone. A fuel vapor generator, preferably in a vehicle fuel tank, includes a fuel vapor collector connected in a return l...
08/03/2004
6679211Manually guided implement
A manually guided implement having an internal combustion engine, especially one embodied as a two-stroke engine, is provided, and also includes a crankcase and a carburetor. The implement has a fuel-conveying system for supplying fuel to the carburetor. ...
01/20/2004
6467470Method and system for refuelling cold-start fuel tanks
The present invention relates to a fuel system as well as a method for controlling the same. More specifically, it relates to a fuel system of motor vehicles adapted to be powered by alcohol-containing fuels, and specifically by alcohol-containing fuels a...
10/22/2002
6073597Fuel injection apparatus
A fuel injection apparatus which prevents delay of the pressurization of the fuel injected and deterioration of the starting characteristic at the time of engine cold starts and the resultant increase in emission of hydrocarbons by leading to an auxiliary...
06/13/2000
5706774Carburetor start pump circuit
A carburetor start pump circuit, for starting an engine, has an auxiliary fuel pump mounted on a relatively standard carburetor body, a pulse passageway extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake ...
01/13/1998
5462024Auxiliary carburetion device in direct fuel injection engines
An auxiliary carburetion device in direct fuel injection engines, to be positioned in correspondence with a main duct (12) feeding air to the engine crankcase (10), a throttling member (38) being located in the main duct (12). The device includes a block ...
10/31/1995
5331937Charge inlet system for internal combustion engine
A charge inlet system for a spark ignited reciprocating internal combustion engine includes a plenum for receiving intake air and having a plurality of intake runners extending to the intake valves of the engine. Fuel flowing through primary fuel injector...
07/26/1994
5241931Internal-combustion engine with a carburetor
An internal combustion engine with a diaphragm carburetor which provides additional fuel injection in all starting and environmental conditions. The carburetor is provided with a fuel recirculation line which communicates at one end with the fuel feed lin...
09/07/1993
5197417Fuel injection pump for a two-stroke engine in a work apparatus such as a motor-driven chain saw
The invention is directed to a fuel injection pump for a two-stroke engine mounted in a work apparatus such as a motor-driven chain saw. The injection pump includes a pneumatic drive chamber which is charged with the crankcase pressure of the two-stroke e...
03/30/1993
5197418Fuel injection pump for a two-stroke engine
The invention is directed to a fuel injection pump for a two-stroke engine which is especially for portable handheld tools such as motor-driven chain saws or the like. A pneumatic drive chamber is provided in the pump housing which is partitioned by a mem...
03/30/1993
5186133Fuel enrichment arrangement for marine propulsion unit
The present invention provides a device for controlling the air/fuel mixture ratio during the starting period for an outboard motor. Specifically, a positive temperature coefficient (PTC) heater controls a fuel flow regulating valve at an engine's charge ...
02/16/1993
5121719Start boosting device for internal combustion engine
A number of embodiments of outboard motors incorporating fuel and air enrichment devices in which fuel is supplied to the engine for enrichment under pressure by a pump and additional air is also supplied to the engine induction system at least at atmosph...
06/16/1992
5095866Starting fluid canister heater
A starting fluid injection system includes a pressurized canister containing a starting fluid under pressure which is dispensed by a valve to an internal combustion engine. A heating element is mounted on the canister, and a power circuit supplies power t...
03/17/1992
5052359Automatic engine fuel enrichment and ignition advance angle control system
An automatic fuel enrichment system for cranking and warm-up of an internal combustion engine in which a solenoid valve is responsive to control electronics for selectively feeding enrichment fuel to the engine air intake manifold. The valve control elect...
10/01/1991
4986229Apparatus for supplying start fuel for a carburetor
An apparatus for supplying start fuel for a carburetor in which an internal combustion engine has a fly-wheel with a magneto incorporated therewith. An intake air passage has an electromagnetic valve and this valve is actuated by an output signal of a pri...
01/22/1991
4938180Cold start system
A cold start system is connected in an electrical circuit to a neutral start switch of a diesel powered vehicle. The electrical circuit includes a thermal switch and an electrical valve. The electrical valve is openable to permit communication between an ...
07/03/1990
4928642Automatic starting fluid injection apparatus and method
Automatic starting fluid injection systems are useful, for example, to aid in the cold-starting of diesel engines. In the subject invention, a microprocessor under software control is used to controllably inject starting fluid into an engine passageway, s...
05/29/1990
4905641Cold-start engine priming and air purging system
A fuel delivery system for purging air from the reservoir of a diaphragm carburetor on an internal combustion engine and for supplying priming fuel to the carburetor air intake. A pump is responsive to electrical signals from priming control circuitry to ...
03/06/1990
4862847Apparatus for supplying start-fuel in the internal combustion engine for a portable type working machine
An apparatus for supplying a start-fuel to an internal combustion engine for a portable type machine such as a chain saw or brush cutter which has an electric battery for use in starting. An electrically driven primer pump is connected to the metering cha...
09/05/1989
4848290Cold-start engine priming and air purging system
A fuel delivery system for purging air from the reservoir of a diaphragm carburetor on an internal combustion engine and for supplying priming fuel to the carburetor air intake. A pump is responsive to electrical signals from priming control circuitry to ...
07/18/1989
4836157Cold-start engine priming and air purging system
A fuel delivery system for purging air from the reservoir of a diaphragm carburetor on an internal combustion engine and for supplying priming fuel to the carburetor air intake. An manual pump has an inlet coupled by a fuel line through the carburetor res...
06/06/1989
4815427Fuel enrichment system
A fuel enrichment system for a multi-cylinder engine having a manifold balance line to deliver fuel to each of the cylinders as needed includes a valve located adjacent one of the carburetors to supply additional air/fuel mixture to approximately the cent...
03/28/1989
4784096Carburetor idle vent control
A carburetor for an internal combustion engine which includes a supplemental fuel chamber and fuel injector valve, manually or remotely actuated, to inject a charge of fuel into the fuel induction chamber of an associated engine and provide a continuing f...
11/15/1988
4774916Measured shot ether system
An automatic measured shot starting fluid assembly (10) injects a predetermined amount of starting fluid into a passageway (11) of a diesel engine. The assembly includes a power source (12) to supply electrical current and a starter motor (14) and solenoi...
10/04/1988
4705004Fuel injection control system for internal combustion engine
A fuel injection control system for an internal combustion engine including: a cold start injection valve provided inside an intake pipe for performing fuel injection on cold starts; a switch for controlling energization of the cold start injection valve;...
11/10/1987
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