Patent · US Active

High-temperature sensor for arrangement in a metal tube, especially inside the exhaust gas system of an internal combustion engine

US9464556B2 · kind B2 · utility

1Cited by

5References

6Claims

0Family size

Assignee

Hella KGaA Hueck & Co. · DE

Inventors

Thomas Niemann · Delmenhorst, DE
Torsten Eggers · Bremen, DE

Key dates

Filing date	Feb 28, 2012
Grant date	Oct 11, 2016
Priority date	—
Expiry date	Jul 2, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01K2205/04
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a high-temperature sensor comprising contact wires in a metal tube, preferably a bent metal tube for arrangement especially inside the exhaust gas system of an internal combustion engine, and spacer bodies distributed in rows along the contact wires so as to maintain the contact wires at a predetermined distance to the inner wall of the metal tube. According to the invention, every spacer body is approximately ovoid, the diameter of the center portion of the egg being not wider than the inside width of the as yet unbent metal tube. The spacer bodies are injection-molded polymer ceramic parts molded onto the contact wires.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.