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Patent Searching and Data


Title:
TWO-PIECE ELASTOMER RELIEF VALVE FOR FILTER AND ANTI-DRAIN BACK VALVE
Document Type and Number:
Japanese Patent JP2005256836
Kind Code:
A
Abstract:

To reduce the number of valve assembly components of a fluid filter, eliminating seal, reducing an overall size, and thereby to permit the use of either a smaller filter or a larger filter element.

The valve assembly comprises a separate two-piece relief valve and an anti-drain back valve. The anti-drain back valve is arranged adjacent to a first aperture for selectively blocking the first aperture to prevent fluid from exiting in the side of the filter during engine shut down. The relief valve is arranged adjacent to a second aperture for selectively blocking the second aperture to permit fluid to flow past the relief valve during high differential pressure conditions such as cold starts and plugged filter conditions.


Inventors:
CLINE L STEVEN
Application Number:
JP2005013495A
Publication Date:
September 22, 2005
Filing Date:
January 21, 2005
Export Citation:
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Assignee:
ARVINMERITOR TECHNOLOGY LLC
International Classes:
B01D27/10; F16K17/04; F01M11/03; (IPC1-7): F01M11/03
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito