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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10578060 B1

PDFFull Text
Date of Patent:
Mar. 03, 2020

Filed:

Apr. 12, 2017

Valve device

Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Takehiro Sugawara, Kariya, JP;

Takahiro Kozu, Kariya, JP;

Tomio Oshima, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Xiao En Mo

Int. Cl.
CPC ...
F02M 26/70 (2016.01); F02D 9/10 (2006.01); F16K 1/46 (2006.01); F16J 15/06 (2006.01); F16K 27/00 (2006.01); F16K 27/12 (2006.01); F16J 15/10 (2006.01); F02M 26/72 (2016.01); F16K 31/04 (2006.01); F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
F02M 26/70 (2016.02); F02D 9/1045 (2013.01); F02M 26/72 (2016.02); F16J 15/06 (2013.01); F16J 15/062 (2013.01); F16J 15/10 (2013.01); F16J 15/102 (2013.01); F16J 15/106 (2013.01); F16K 1/465 (2013.01); F16K 27/00 (2013.01); F16K 27/12 (2013.01); F16K 31/04 (2013.01); F02D 2041/1472 (2013.01);
Abstract

A preset compression ratio of a gasket is set to be larger at a center segment than at fixation segments. In order to set the preset compression ratio in the above-described manner, a depth of a center-segment-side bottom surface of a cover is set to be smaller than a depth of each fixation-segment-side bottom surface at the cover. In this way, even when a phenomenon, which causes a reduction of the compression ratio of the center segment of the gasket relative to the compression ratio of the fixation segments, occurs, it is possible to limit the reduction of the compression ratio of the center segment to a value that is lower than the compression ratio of the fixation segment.

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