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:
Jun. 25, 2019

Filed:

Jun. 05, 2015
Applicant:

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

Inventor:

Makoto Ito, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/407 (2006.01); G01N 27/406 (2006.01); G01N 27/409 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4078 (2013.01); G01N 27/409 (2013.01); G01N 27/4067 (2013.01); G01N 27/4071 (2013.01); G01N 27/4076 (2013.01); G01N 27/4077 (2013.01);
Abstract

A gas sensor is provided with: a sensor element having a solid electrolyte body, a measurement electrode and a reference electrode; a housing into which the sensor element is inserted; and an element cover arranged at the tip-end side of the housing. The element cover has an inner cover arranged so as to cover the tip-end portion of the sensor element from outside, and an outer cover arranged so as to cover the inner cover from outside. When L is defined as an axial distance from a base end of an internal space of the inner cover to the base end of the measurement electrode, an axial distance M from the base end of the internal space of the inner cover to the base end of an inner vent hole positioned in the most base-end side among the inner vent holes provided to the inner cover is 0.2L to 0.65L.


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