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.:
Date of Patent:
Nov. 01, 2022
Filed:
Sep. 30, 2020
Ngk Insulators, Ltd., Aichi, JP;
Fumiya Takahashi, Nagoya, JP;
Takeshi Omori, Niwa-gun, JP;
NGK INSULATORS, LTD., Nagoya, JP;
Abstract
A gas sensor includes a sensor element, an inner protective cover including a first member and a second member, and an outer protective cover having outer inlets. The inner protective cover has a sensor element chamber inside. The outer protective cover and the inner protective cover form an inlet-side gas flow channel from an outside to the sensor element chamber. The inlet-side gas flow channel has a first flow channel extending in an upward direction from the outer inlets and a second flow channel extending in a downward direction. A ratio W/Wbetween a flow channel width Wof the first flow channel and a flow channel width Wof the second flow channel is less than one. A tip end portion of the outer protective cover has a tapered portion that reduces in diameter toward a bottom portion of the tip end portion.