Ti Group Automotive Systems Corporation

Walbro Corporation

Peter P Kuperus

Ronald H Roche

Joseph M Ross

Bryan J Gettel

Eric Grant

Glenn A Moss

Ronald B Kuenzli

David H Ford

Joseph M Graham

Antonio J DaSilva

Thaddeus A Chmielewski

Charles H Tuckey

Edward J Talaski

G Clarke Oberheide

William E Galka

Mark R Johansen

John R Forgue

Kenneth J Cotton

Lynwood F Crary

Matthias Henschel

Kirk D Doane

Kevin L Williams

Matthew L Werner

Martin Stickel

Michael Kloess

Jeffrey M Atwood

Anthony M Kueffner

Antonio J Dasilva

David A Brady

Edwyn R Maschke

Tomoko Takano

Wade A Gottschalk

Shawn Dill

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.

Reactant delivery for engine exhaust gas treatment

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. Preferably an end cover of the housing overlies and encloses the springs and brushes and preferably has an outlet port laterally offset from the brushes and within the outer periphery of the end cover to further decrease the overall axial length of the fuel pump assembly. Preferably electrical connector blades extend through the end cover and are laterally offset from and axially overlap in electrical connection with the brushes for supplying current to the motor.

Electric motor fuel pump having a reduced length

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.

Fuel pump assembly with a vapor purge passage arrangement for a fuel pump module

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.

Fuel pump

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.

Vehicle fuel system

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.

Fuel tank assembly

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. Desirably, a camshaft rotated in response to rotation of the throttle valve is used to actuate both shut-off valves.

Engine dual fuel supply apparatus

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. Desirably, this outlet may extend through the same opening in the fuel tank through which the fuel pump, vapor canister, electronic control module and other components of the vehicle fuel system are inserted into the fuel tank. Notably, the number of openings in the tank is reduced and in one embodiment, only two openings are used in the tank, one for a fill pipe through which fuel is introduced into the tank and the other for the insertion of the various fuel system components into the tank.

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.

Fuel supply system responsive to engine fuel demand

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. The assembly is readily adaptable to multiple fuel tank applications by selecting respective canisters and fuel pump assemblies that are compatible with such applications.

In-take fuel pump reservoir

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. Mounting the pressure control device and fuel pump in a common module reduces the number of fuel lines in the fuel system and avoids the problems associated with return fuel systems which return heated, excess fuel from a hot fuel rail. Desirably, a fuel filter is provided at the fuel pump inlet and a foam shell is also disposed in the fuel pump module to reduce sloshing of the fuel and vibrations in the module and to permit a module to securely carry fuel pumps of different size. Thus, the fuel pump module according to this invention is versatile, compact and readily assembled into a wide variety of fuel systems.

Fuel pump module

Growing community of inventors

Cass City, MI, United States of America

Peter P Kuperus