Abstract: A modular pressure regulator/filter wherein the fuel filter is adapted to be attached to a fuel delivery system of an internal combustion engine and the housing thereof has a projecting wall on the filter housing adjacent to a female opening in the fuel filter housing. This projecting wall has at least one slot therein. A clip is provided and includes a disc portion with a central opening therein for selectively receiving a male outlet conduit from the pressure regulator. A clip projection, which is integral with and movably attached to the disc portion, is adapted to be selectively received into the slot in the projecting wall whereby the clip is held from moving away from the projecting wall. An annular projection on the pressure regulator housing is disposed between the disc portion and the clip projection when the clip projection is in the first position thereof for holding the pressure regulator housing in the clip.

Abstract: A passive fuel delivery module adapted for installation in fuel tanks of vehicles. The passive fuel delivery module maintains a minimum fuel reserve in a fuel reserve reservoir for the fuel pump and includes primary and secondary fuel filters for filtering both the tank fuel and reservoir fuel. The passive fuel delivery module further includes a suspension mechanism which enables the fuel delivery module to vertically displace with the bottom surface of the fuel tank.

Abstract: A fuel pressure regulator wherein the diaphragm is eliminated from the crimp securing the first and second portions of the regulator housing together, thus minimizing the strain on the diaphragm thereby extending the life of the diaphragm and the pressure regulator. The diaphragm has an annular flange that is disposed within an annular area defined by an annular interior periphery of the second housing portion and an annular exterior periphery of an end plate retained between first and second housing portions of the regulator. The diaphragm is thereby axially and radially restrained between the first and second housing portions without being clamped between the first and second housing portions thereby increasing the life expectancy of the diaphragm. The fuel pressure regulator further utilizes a valve member having an annular sealing surface.

Abstract: A combination fuel pressure regulator and fuel filter apparatus for vehicle fuel systems has a fuel supply tank with a fuel pump therein for pumping fuel to a fuel supply rail having fuel injectors attached thereto. A fuel filter is operably disposed between an inlet supply tube and a fluid outlet tube for filtering impurities from fuel passing therethrough. A valve in fluid communication with the inlet supply tube is provided with a regulator for causing flow to be short circuited back into the fuel supply tank when the pressure in the fluid outlet, compared to a reference pressure, exceeds a first predetermined level. The valve is biased to a closed position and will remain closed at one differential pressure of the clean side of the filter, compared to a reference pressure, whereby all of the fuel in the inlet supply tube will pass through the filter.

Abstract: A combination fuel pressure regulator and fuel filter apparatus for vehicle fuel systems wherein the pressure regulator telescopes into the fuel filter and wherein the two parts are separable and independently replaceable. The fuel filter is operably disposed between an inlet supply tube and an outlet tube for filtering impurities from fuel passing therethrough. A valve in fluid communication with the inlet tube is provided with a regulator for causing flow to be short circuited back into the fuel supply tank when the pressure in the fuel outlet exceeds a predetermined level. The valve is biased to a closed position and will remain closed when the pressure on the clean side of the filter is below the predetermined pressure whereby all of the fuel in the inlet tube will pass through the filter when the pressure in the fluid outlet is below the predetermined pressure.

Abstract: A fuel filter having a plastic housing with a chamber therein for receiving a non-polar fluid such as fuel has an inlet and an outlet to the chamber and a filter media is disposed within the chamber for filtering the fuel flowing therethrough. A coating is provided for conducting electricity from the inside of the housing to the outside of the housing to a common electrical plane. This conductive path is preferably provided by merely coating the entire fuel filter, both inside and out with a conductive coating, such as chromium.

Abstract: A fuel filter having a housing made of an electrically non-conductive material has a chamber disposed within the housing and the housing has an inlet and an outlet both in communication with the chamber. A filter media is disposed inside the chamber and is fluidly disposed between the inlet and the outlet for filtering non-polar substances such as fuel for internal combustion engines or the like. The filter media includes conductive fibers for preventing the buildup of or generation of electrostatic charges which would otherwise be generated by passage of fuel through standard paper filters such as those used almost universally in the automotive industry. These conductive fibers are preferably carbon fibers which consist of approximately two percent (2%) of the entire filter media.

Abstract: A combination fuel pressure regulator and fuel filter apparatus for vehicle fuel systems has a fuel supply tank with a fuel pump therein for puming fuel to a fuel supply rail having fuel injectors attached thereto. A fuel filter is operably disposed between an inlet supply tube and a fluid outlet tube for filtering impurities from fuel passing therethrough. A valve in fluid communication with the inlet supply tube is provided with a regulator for causing flow to be short circuited back into the fuel supply tank when the pressure in the fluid outlet exceeds a predetermined level. The valve is biased to a closed position and will remain closed as long as the pressure on the clean side of the filter is below the predetermined pressure whereby all of the fuel in the inlet supply tube will pass through the filter.

Abstract: A pressure regulator having a housing with a chamber disposed therein. A diaphragm is sealingly connected around the inner periphery of the housing for dividing the chamber into two parts. A first port is fluidly connected to a first part of the chamber and is adapted to be attached to a fuel return line. A second port is fluidly connected to the first part of the chamber and is adapted to be fluidly attached to a fuel rail having fuel injectors attached thereto. A third port is fluidly connected to the second part of the chamber and is adapted to be fluidly connected to an intake manifold of an internal combustion engine. A resilient flat washer is attached around the outer periphery thereof to the housing, adjacent to the first part. An elongated valve member is disposed in the first part of the chamber and has one end thereof adapted to be selectively and sealingly received within the opening in the washer.

Abstract: A valve of a type used for preventing fuel line leaks which occur when automobiles or trucks roll over. The valve is used in conjunction with a vehicle fuel system, preferably in a vapor vent line which vents fuel vapors from the fuel tank, so that if the vehicle rolls over or tilts in one direction by more than a predetermined amount, the valve will close. A ball disposed in a conical recess within the valve body serves as a gravity actuator for a reciprocating valve member. A novel structure of a valve member of a particular configuration in combination with the novel configuration of the interior of the valve housing allows the valve member to be self-cleaning due to vibrations caused by vehicular travel; and yet, the valve provides a positive sealing function upon tipping or tilting thereof by a predetermined amount or more.