Gas sensor and gas sensor installation structure

Patent metadata

Field	Value
Publication number	US-8967002-B2
Application number	US-201213442741-A
Country	US
Kind code	B2
Filing date	Apr 9, 2012
Priority date	Apr 8, 2011
Publication date	Mar 3, 2015
Grant date	Mar 3, 2015

Abstract

A sensor ( 200 ) includes a sensor element ( 10 ), a tubular metallic shell ( 138 ), and a tubular mounting member ( 180 ) rotatable relative to the metallic shell. The metallic shell has a body ( 138 a ) and a flange ( 138 f ) provided forward of the mounting member and projecting radially outward beyond the radially inner surface of the mounting member. Further, the radially outer surface of the body and the rearward-oriented surface of the flange are connected by a slant surface ( 138 t ). The mounting member is such that a forward-oriented surface ( 180 a ) and a radially inner surface ( 180 b ) meet at a corner ( 180 e ). When a threaded portion ( 180 s ) of the mounting member is threadingly engaged with a mounting hole ( 300 h ) of a mount body ( 300 ), a forward-oriented surface ( 138 f 1 ) of the flange comes into contact with a mounting surface ( 300 r ) of the mount body, and the corner comes into contact with the slant surface.

First claim

The invention claimed is:

1. A sensor extending in an axial direction and comprising:
a sensor element;
a tubular metallic shell radially surrounding the sensor element; and
a tubular mounting member radially surrounding the metallic shell, being rotatable relative to the metallic shell, and having, at its radially outer surface, a threaded portion to be threadingly engaged with a mounting hole of a mount body;
wherein the metallic shell has a body disposed radially inward o…

Assignees

• Kume Makoto
• Inoue Nobuhiro
• Ngk Spark Plug Co

Inventors

• Kume Makoto
• Inoue Nobuhiro

Classifications

• G01N27/4078 Primary

  Physics · mapped topic

• F01N13/008

  Mechanical Engineering · mapped topic

• F01N13/1855

  Mechanical Engineering · mapped topic