Abstract: A reactant delivery system for engine exhaust gas treatment may include a tank in which a reactant is received, a pumping device, a pressure relief device, and a reactant distribution device. The pumping device may have an inlet disposed within the interior of the tank to receive the reactant, and an outlet through which the reactant is discharged. The pressure relief device may have an inlet in fluid communication with the outlet of the pumping device, a primary outlet to discharge the reactant under pressure to a downstream location, and a bypass outlet through which at least some of the reactant discharged from the pumping device is selectively discharged. And the reactant distribution device may be in fluid communication with the bypass outlet of the pressure relief device and have a plurality of outlets to distribute the reactant to at least two different locations within the tank.

Abstract: A reactant delivery system for engine exhaust gas treatment may include a tank in which a reactant is received, a pumping device, a pressure relief device, and a reactant distribution device. The pumping device may have an inlet disposed within the interior of the tank to receive the reactant, and an outlet through which the reactant is discharged. The pressure relief device may have an inlet in fluid communication with the outlet of the pumping device, a primary outlet to discharge the reactant under pressure to a downstream location, and a bypass outlet through which at least some of the reactant discharged from the pumping device is selectively discharged. And the reactant distribution device may be in fluid communication with the bypass outlet of the pressure relief device and have a plurality of outlets to distribute the reactant to at least two different locations within the tank.

Abstract: A fuel pump assembly includes a fuel pump, and an electric motor for rotatably driving the fuel pump and including a motor armature and a commutator positioned between the motor armature and the fuel pump.

Abstract: An electric motor and fuel pump assembly with a housing having generally opposed ends with an electric motor within the housing having an armature with an axial commutator adjacent one end of the armature and one end of the housing. A fuel pump is positioned adjacent another end of the housing and the armature and is operably connected to the armature for being driven by the electric motor. A carrier within the housing has guides slidably receiving axially elongate brushes disposed generally parallel to the armature axis with ends contacting the commutator. Each brush is biased generally axially into contact with the commutator by a torsional spring with a coiled body having an axis generally transverse to the axis of the armature to decrease the overall axial length of the pump assembly.

Abstract: A reactant delivery system for engine exhaust gas treatment may include a tank in which a reactant is received, a pumping device, a pressure relief device, and a reactant distribution device. The pumping device may have an inlet disposed within the interior of the tank to receive the reactant, and an outlet through which the reactant is discharged. The pressure relief device may have an inlet in fluid communication with the outlet of the pumping device, a primary outlet to discharge the reactant under pressure to a downstream location, and a bypass outlet through which at least some of the reactant discharged from the pumping device is selectively discharged. And the reactant distribution device may be in fluid communication with the bypass outlet of the pressure relief device and have a plurality of outlets to distribute the reactant to at least two different locations within the tank.

Abstract: A fuel pump has a housing defining a cavity. A rotor of an electric motor is carried in the cavity for rotation about a drive axis. An annular pump impeller is supported in the cavity separate from the rotor and is driven by the rotor for rotation about the drive axis.

Abstract: A fuel pump assembly includes a fuel pump, and an electric motor for rotatably driving the fuel pump and including a motor armature and a commutator positioned between the motor armature and the fuel pump.

Abstract: An electronics module configured for use within a vehicle fuel tank. The electronics module includes a fluid encapsulant, and electronics immersed in the fluid encapsulant. Preferably, the electronics module includes a sealed housing for carrying the fluid encapsulant and electronics therein, and the fluid encapsulant includes a base fluid and additives to the base fluid to neutralize aggressive compounds in any fuel that may enter the sealed housing.

Abstract: A fuel pump and filter assembly includes a housing supporting a filter in a filter chamber, which is at least partially defined by first and second end walls, an outer wall extending therebetween, and an inner side wall disposed radially inwardly of the outer side wall. A fuel pump assembly is carried by the housing radially inwardly of the inner side wall and includes a sleeve that extends from the first end wall of the housing to the second end wall of the housing.

Abstract: A fuel system with a fuel tank having at least one opening into an interior of the fuel tank, and an electrically operated vent valve having an inlet communicated with the interior of the fuel tank and an outlet for venting fuel vapor from the fuel tank. The vent valve is movable in response to an electric signal between an open position allowing fuel vapor through the outlet and a closed position to restrict fluid flow through the outlet. A controller is operably communicated with the vent valve to control application of an electric signal to the vent valve and thereby control at least in part the movement of the vent valve between its open and closed positions. In one embodiment the controller is responsive to a fill level in the fuel tank to control the position of the vent valve and thereby the fill level attained within the fuel tank.

Abstract: A fuel tank assembly has a cover adapted for attachment to a structural member of a vehicle to define an enclosure between the cover and structural member and a fuel tank is received within the enclosure. Preferably, a space exists between the fuel tank and the cover, and the space is communicated with a fuel vapor canister to remove fuel vapor from the space and prevent it from escaping to the atmosphere. Desirably, the cover shields the fuel tank from the atmosphere, debris, and adjacent vehicle components.

Abstract: A fuel tank assembly has a cover adapted for attachment to a structural member of a vehicle to define an enclosure between the cover and structural member and a fuel tank is received within the enclosure. Preferably, a space exists between the fuel tank and the cover, and the space is communicated with a fuel vapor canister to remove fuel vapor from the space and prevent it from escaping to the atmosphere. Desirably, the cover shields the fuel tank from the atmosphere, debris, and adjacent vehicle components.

Abstract: An engine fuel apparatus has a fuel and air mixing passage through which a rich fuel and air mixture is provided to an engine to support the operation of the engine at idle and low speed, low load engine operation, and a pressurized fuel delivery passage provides liquid fuel to a downstream fuel injector for operation of the engine at high load, high speed and wide open throttle engine operating conditions. A shut-off valve prevents the flow of fuel to the mixing passage when a throttle valve therein, which controls engine operation, is opened a predetermined amount from idle to prevent the flow of the fuel into the mixing passage at high load and/or high speed engine operation. Another shut-off valve prevents the flow of pressurized fuel to the downstream fuel injector device when the throttle valve is between idle and a predetermined position off of idle to prevent the flow of pressurized fuel to the fuel injector device under low speed, low load engine operation.

Abstract: A vehicle fuel system has an electronic control module received within a fuel tank to send data to and receive data from the electronic control unit (ECU) for the vehicle engine and other vehicle control systems, to provide an electronic control of the vehicle fuel system and to receive signals from one or more sensors mounted within the fuel tank which provide information about the operation of the fuel system. The fuel system integrates a plurality of components into the vehicle fuel tank to reduce the number of openings through the vehicle fuel tank and the number of external connections which must be made in assembly of the fuel system into a vehicle. By disposing a fuel vapor canister within the fuel tank, each vapor vent valve within the fuel tank can communicate completely within the tank with the vapor canister with a single outlet extending from the fuel tank to communicate fuel vapor from the canister with an intake manifold of the engine.

Abstract: A no-return system for supplying fuel from a tank to a fuel injected internal combustion engine of an automotive vehicle in response to the fuel demand of the engine. The pump supplies more fuel than that required by the operating engine and the excess fuel is diverted from the engine by a bypass fuel pressure regulator and returned to the tank through a fluid-activatable switch movable to electrically open and closed states in response to the rate of flow of excess fuel through the switch. An electric control circuit is responsive to the state of the switch to change the magnitude of the power applied to the electric motor to change its operating speed and thereby modulate the output fuel flow rate of the pump in response to the fuel demand of the engine.

Abstract: An in-tank fuel pump reservoir assembly for drawing fuel from a fuel supply tank and discharging the fuel under pressure to an engine. The assembly includes a reservoir canister that partially defines a reservoir chamber and is mounted within a fuel tank. A reservoir inlet admits fluid into the reservoir chamber from the fuel tank. A reservoir outlet allows fuel to flow from the reservoir chamber to an engine through a fuel line. A reservoir filling device draws fuel into the reservoir chamber from the fuel supply tank through the reservoir inlet. A fuel pump assembly disposed within the canister draws fuel from the reservoir chamber and discharges at least a portion of that fuel to the engine through the reservoir outlet. A modular fuel delivery pod includes the fuel pump assembly, the reservoir filling device, and the inlet check valve. The pod connects to the canister to cooperatively define the reservoir chamber.

Abstract: A fuel pump module constructed to be disposed exteriorly of a vehicle fuel tank carries, as a single unit, an electric motor fuel pump and a pressure control device which controls the pressure of fuel delivered to an internal combustion engine from the fuel pump. Fuel supplied from the fuel tank to the module is drawn into the fuel pump which increases the pressure of the fuel and then discharges the fuel under pressure from an outlet of the fuel pump which communicates with the pressure control device carried by the module and an outlet of the module which in turn, communicates with the engine. The pressure control device may be either a pressure relief valve, which functions to limit the maximum pressure of the fuel delivered to the engine, or a fuel pressure regulator, such as a bypass pressure regulator, which bypasses to a point upstream of the fuel pump inlet fuel delivered from the fuel pump in excess of the engine's fuel demand.