Federal-mogul World Wide, Inc.

Federal-mogul Corporation

Larry J Tipton

Richard W Harvey

David E Winn

Aaron Kiser

A vehicle having an engine, a fuel tank, and a pump encased in a housing. The pump is in fluid communication with the fuel tank and the engine. A filter is disposed intermediate the fuel pump and the engine. An electrical conductor having an inoperative position and an operative position is operatively associated with the pump. When the filter is installed, the electrical conductor contacts the pump housing to ground the pump allowing operation thereof.

Fuel pump/filter integration

A fuel filtering system having a valve which prevents the flow of fuel in the absence of a fuel filter. The filtering system includes a housing in which a fuel pump is at least partially disposed. A valve mechanism is located on the discharge side of the fuel pump and includes a valve member which is movable between open and closed positions which, respectively, allow and prevent fluid flow through the fuel line. A biasing member is provided for biasing the valve member into the closed position. The valve member is engaged by the mounting of the fuel filter to thereby open the valve mechanism. In the absence of an installed fuel filter, the valve member remains in the closed position to prevent the flow of unfiltered fuel to the engine.

Fuel filtering system with valve

A fuel transfer apparatus for providing fuel to a vehicle engine from a plurality of fuel tanks. A transfer pump is positioned intermediate a pair of fuel tanks and is operable to transfer fuel therebetween. Fuel is provided to the engine from a first one of the two fuel tanks. Excess fuel is returned to the first one of the two fuel tanks. When the level in the first fuel tank is less than the level in the second fuel tank by a predetermined amount, the transfer pump transfers an amount of fuel from the second fuel tank to the first fuel tank. Fuel level sensors are utilized to monitor the level of fuel in the two fuel tanks and report to a microprocessor which controls the transfer pump. The microprocessor utilized to control the transfer pump may be incorporated into the transfer pump, may be a stand alone microprocessor, or may comprise an existing vehicle circuit board such as, e.g., the electronic control module (ECM). A three-way valve may be incorporated into the transfer pump so that the transfer pump can be additionally utilized to provide a priming feature for an engine driven fuel pump.

Fuel transfer pump and control

A combination valve including a metal sleeve and a valve body. The valve body is formed of a resilient material and insert bonded or vulcanized to the metal sleeve and includes a cylindrical elongated member defining a passageway therethrough and an annular umbrella portion integrally extending from the elongated member. The elongated member is disposed within the metal sleeve and has converging flexible lips. The metal sleeve includes a plurality of prongs at one end and the valve body includes a top surface. The prongs of the metal sleeve extend to the top surface of the valve body, whereby the valve can be press-fitted into location without damaging the valve body. Between the prongs of the metal sleeve are gaps which permit the molding material to flow from the umbrella portion to the elongated member during the molding of the combination valve.

Insert bonded combination valve

A fuel storage and distribution system for heavy and medium duty trucks which include dual fuel tanks ( ). An electric transfer pump ( ) transfers fluid from the tank with the greatest volume to the tank with the lowest volume. Fuel level sensors ( ) measure the fluid levels in the fuel tanks ( ) and provide inputs to the electric transfer pump ( ). Fuel may be transferred in either direction between the two fuel tanks.

A fuel filter assembly 16 for a fuel system for an internal combustion engine 10 which comprises a fuel filter housing 16 supporting a filter material 20 in a filter chamber 18 for disposition in a fuel line between a fuel tank 12 and an injector pump 14, and a fuel reservoir 22 disposed downstream from the filter chamber 18 for storing a volume of fuel. The assembly is characterized by an inlet valve 24 controlling fuel flow between the filter chamber 18 and the reservoir 22 for maintaining a predetermined volume of fuel in the reservoir 22 to provide a substantially constant fuel pressure to the injector pump 14. A float 26 is disposed in the reservoir 22 for opening the valve 24 in response to the fuel being below the predetermined volume and closing the valve 24 in response to the fuel being above the predetermined volume.

Constant fuel-pump-inlet pressure system

In operation, the main pump (24) is activated and the main value (18) is opened in response to the ignition switch (28) being turned ON to pump fuel from the fuel supply tank (12) to the injectors in the injector manifold (14). During the ON condition, the return control valve (48) is closed to prevent back flow from the injector manifold (14) to the fuel tank (12). In response to the ignition switch (28) being turned to the OFF condition, the main valve (18) is closed and the main pump (24) is deactivated and, most importantly, the return control valve (48) is opened and the return pump (40) is activated to place a negative or vacuum pressure on the upstream side of the injectors to return the residual fuel therein to the fuel tank (12). This prevents the residual fuel from leaking through the injectors and into the combustion chambers of the engine (10), which, in turn, would make it difficult to immediately restart the engine (10) because of a fuel rich condition.

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Kokomo, IN, United States of America

Larry J Tipton