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:
Mar. 07, 2006
Filed:
Oct. 17, 2003
Toshihiro Sakawa, Toyohashi, JP;
Daisuke Makino, Ichinomiya, JP;
Hiroo Imamura, Okazaki, JP;
Fumihiko Sato, Susono, JP;
Katsuya Hirai, Susono, JP;
Toshihiro Sakawa, Toyohashi, JP;
Daisuke Makino, Ichinomiya, JP;
Hiroo Imamura, Okazaki, JP;
Fumihiko Sato, Susono, JP;
Katsuya Hirai, Susono, JP;
Denso Corporation, , JP;
Nippon Soken, Inc., , JP;
Abstract
An air-fuel ratio sensor includes a sensor element inserted through a cylindrical housing for detecting an air-fuel ratio in an atmosphere of unburnt gas, and a measured gas side cover disposed on an end of the cylindrical housing so as to cover the sensor element and defining an inside chamber for storing therein a gas to be measured. The cover has a nested structure composed of a plurality of cup-shaped cover members disposed one inside another, each cover member having a gas inlet hole formed in a side wall thereof and a bottom hole formed in a bottom wall thereof. The gas inlet hole of an innermost one of the plural cover members that directly faces the sensor element is offset from an air-fuel ratio detecting portion of the sensor element toward the housing in an axial direction of the sensor.