Michael E Niemiec

US Patent:

6532941, Mar 18, 2003

Filed:

Jul 30, 2001

Appl. No.:

09/918388

Inventors:

Chris Clarence Begley - Ortonville MI
Michael D. Lutton - Grand Blanc MI
Michael Joseph Niemiec - Brighton MI
Charles Wilson Braun - Livonia NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F02M 3704

US Classification:

123497, 123509, 123514

Abstract:

An electronic returnless fuel system for a vehicle includes a fuel pump to pump fuel from a fuel tank. The electronic returnless fuel system also includes a fuel rail fluidly connected to the fuel pump to distribute the fuel to an engine of the vehicle and a pressure transducer to sense pressure of the fuel from the fuel pump to the fuel rail. The electronic returnless fuel system includes a controller electrically connected to the pressure transducer and the fuel pump to control the pressure of the fuel from the fuel pump to the fuel rail at a set operating pressure. The electronic returnless fuel system further includes a pressure relief valve interconnecting the fuel pump and the fuel rail set a predetermined amount above the set operating pressure and at least one jet pump disposed in the fuel tank and fluidly connected to the pressure relief valve.

US Patent:

6622707, Sep 23, 2003

Filed:

Jun 8, 2001

Appl. No.:

09/878094

Inventors:

Chris Clarence Begley - Ortonville MI
Michael D. Lutton - Grand Blanc MI
Michael Joseph Niemiec - Brighton MI
Charles Wilson Braun - Livonia NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F02M 3704

US Classification:

123497, 123514

Abstract:

An electronic returnless fuel system for a vehicle includes a fuel pump to pump fuel from a fuel tank. The electronic returnless fuel system also includes a fuel rail fluidly connected to the fuel pump to distribute the fuel to an engine of the vehicle and a pressure transducer to sense pressure of the fuel from the fuel pump to the fuel rail. The electronic returnless fuel system includes a controller electrically connected to the pressure transducer and the fuel pump to control the pressure of the fuel from the fuel pump to the fuel rail at a set operating pressure. The electronic returnless fuel system further includes a pressure relief valve interconnecting the fuel pump and the fuel rail set a predetermined amount below the set operating pressure to leak fuel back into the fuel tank.

US Patent:

20030213474, Nov 20, 2003

Filed:

May 16, 2002

Appl. No.:

10/146743

Inventors:

David Lambert - Sterling Heights MI, US
Gary Charles Abusamra - Grand Blanc MI, US
Charles Robert Harrington - Troy MI, US
John Kirwan - Troy MI, US
Han-Sheng Lee - Bloomfield Hills MI, US
Michael Joseph Niemiec - Brighton MI, US

International Classification:

F02M051/00

US Classification:

123/491000

Abstract:

The invention provides an improvement over conventional engine controls by directly measuring fuel volatility, and using this measured value to adjust the engine air/fuel ratio during engine start and initial operation. Engine startability and initial operation are improved as compared to conventional engine control systems by compensating the engine air/fuel ratio during engine start and initial engine operation, using a direct measurement of the fuel volatility.