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.

Date of Patent:
Sep. 06, 2022

Filed:

Mar. 29, 2021
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Ryoyuu Kishi, Kariya, JP;

Yasuo Katoh, Kariya, JP;

Tomohiro Itoh, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 3/32 (2006.01); F02M 25/08 (2006.01); G01L 19/06 (2006.01); G01L 19/14 (2006.01); G01M 3/28 (2006.01);
U.S. Cl.
CPC ...
G01M 3/3263 (2013.01); F02M 25/0818 (2013.01); G01L 19/0672 (2013.01); G01L 19/14 (2013.01); G01L 19/141 (2013.01); G01L 19/147 (2013.01); G01M 3/2815 (2013.01); G01M 3/3272 (2013.01); F02M 25/089 (2013.01); F02M 25/0809 (2013.01); F02M 25/0836 (2013.01);
Abstract

A pressure sensor for an evaporated fuel leak detector is used for checking airtightness in a fuel tank and a canister. The pressure sensor includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case has a fluid flow path and a housing recess. A buffer recess having an outer shape larger than the outer shape of a pressure receiving surface is formed at a pressure receiving side Lof the bottom of the housing recess. Further, a protruding cylinder portion protruding into the buffer recess toward a back side Lis formed at an outer edge of an opening end portion of the fluid flow path on the back side L


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