Method of designing a fuel vapor pressure management apparatus

Details Method of designing a fuel vapor pressure management apparatus Method of designing a fuel vapor pressure management apparatus

Filed on

2006-01-17

Date issued

2006-01-17

Examiner

Hepperle, Stephen M. (Department: 3753)

Patent Class

Fluid handling

SubClass

Processes

SubSubClass

With control of flow by a condition or characteristic of a...

Other Related Categories

C123S518000, C137S493100, C137S493900, C137S554000

Type

Reexamination Certificate

Status

active

Patent number

06986357

Description

ABSTRACT:
A method of designing a fuel vapor pressure management apparatus that performs leak detection on a headspace of a fuel system. A pressure operable device separates the housing into first and second portions, and includes a seal and a poppet that cooperatively engages the seal with a contact force. The seal includes a first effective area that is equal to a difference between a first area defined by a major perimeter and a second area defined by a minor perimeter. The poppet moves along an axis and includes a second effective area that is defined by the minor perimeter of the seal. A first pressure level, at which excess negative pressure is relieved, is calculated by dividing the contact force by the first effective area. And a second pressure level, at which excess positive pressure is relieved, is calculated by dividing the activation force by the second effective area.

REFERENCES:
patent: 322084 (1885-07-01), Wilder
patent: 2204706 (1940-06-01), Searle
patent: 2318962 (1943-05-01), Parker
patent: 2679946 (1954-06-01), Friend
patent: 3741232 (1973-06-01), Soberski
patent: 4368366 (1983-01-01), Kitamura et al.
patent: 4726488 (1988-02-01), Kasugai
patent: 4842015 (1989-06-01), Haak et al.
patent: 4951701 (1990-08-01), Boehmer
patent: 5036823 (1991-08-01), MacKinnon
patent: 5116257 (1992-05-01), Sziaga
patent: 5191870 (1993-03-01), Cook
patent: 5224511 (1993-07-01), Schnettler
patent: 5253629 (1993-10-01), Fornuto et al.
patent: 5263462 (1993-11-01), Reddy
patent: 5373822 (1994-12-01), Thompson
patent: 5449018 (1995-09-01), Harris
patent: 5524662 (1996-06-01), Benjey et al.
patent: 5863025 (1999-01-01), Noya
patent: 5911209 (1999-06-01), Kouda et al.
patent: 6328021 (2001-12-01), Perry et al.
patent: 6450152 (2002-09-01), Everingham
patent: 6460566 (2002-10-01), Perry et al.
patent: 6478045 (2002-11-01), Perry
patent: 6564780 (2003-05-01), Hanai et al.
patent: 1418269 (1975-12-01), None
patent: WO 01/38176 (2001-05-01), None
patent: WO 1/86134 (2001-11-01), None
patent: WO 02/103192 (2002-12-01), None
patent: WO 02/103193 (2002-12-01), None
PCT International Search Report (PCT/CA03/01441) Mailed Jan. 21, 2004.
U.S. Appl. No. 10/758,239, filed Jan. 16, 2004, Veinotte, Flow Sensor Integrated with Leak Detection for Purge Valve Diagnostic.
U.S. Appl. No. 10/758,273, filed Jan. 16, 2004, Veinotte, et al., Flow Sensor for Purge Valve Diagnostic.
U.S. Appl. No. 10/758,272, filed Jan. 16, 2004, Veinotte, et al., Flow Sensor for Purge Valve Diagnostic.
U.S. Appl. No. 10/758,238, filed Jan. 16, 2004, Veinotte, Flow Sensor Integrated with Leak Detection for Purge Valve Diagnostic.
U.S. Appl. No. 10/736,773, filed Dec. 17, 2003, Perry, et al., Apparatus, System and Method of Establishing a Test Threshold for a Fuel Vapor Leak Detection System.
U.S. Appl. No. 10/170,420, filed Jun. 14, 2002, Veinotte, Apparatus and Method for Preventing Resonance in a Fuel Vapor Pressure Management Apparatus.
U.S. Appl. No. 10/667,903, filed Sep. 23, 2003, Veinotte, et al., Rationality Testing for a Fuel Vapor Pressure Management Apparatus.
U.S. Appl. No. 10/667,902, filed Sep. 23, 2003, Perry, et al., In-Use Rate Based Calculation for a Fuel Vapor Pressure Management Apparatus.
U.S. Appl. No. 10/171,469, filed Jun. 15, 2002, Veinotte, et al., A method of Managing Fuel Vapor Pressure in a Fue System.
U.S. Appl. No. 10/171,470, filed Jun. 14, 2002, Veinotte, Bi-Directional Flow Seal for a Fuel Vapor Pressure Management Apparatus.
U.S. Appl. No. 10/667,963, filed Sep. 23, 2003, Veinotte, et al., Apparatus and Method of Changing Printed Circuit Boards in a Fuel Vapor Pressure Management.
U.S. Appl. No. 10/171,471, filed Jun. 14, 2002, Veinotte, Apparatus and Method for Calibrating a Fuel Management Apparatus.
U.S. Appl. No. 10/171,472, filed Jun. 14, 2002, Veinotte, A Poppet for a Fuel Vapor Pressure Management Apparatus.
U.S. Appl. No. 10/171,473, filed Jun. 14, 2002, Veinotte, Method for Fuel Vapor Pressure Management.
U.S. Appl. No. 10/170,395, filed Jun. 14, 2002, Veinotte, Apparatus for Fuel Vapor Pressure Management.
U.S. Appl. No. 10/170,397, filed Jun. 14, 2002, Veinotte, Fuel System Including an Apparatus for Fuel Vapor Pressure Management Apparatus.

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