Patent · US Expired

Combustion process sensor arrangement

US4409815A · kind A · utility

11Cited by

2References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rainer Burkel · Le Chesnay, FR
Cornelius Peter · Ansbach, DE
Klaus Muller · Tamm, DE

Key dates

Filing date	Oct 26, 1981
Grant date	Oct 18, 1983
Priority date	—
Expiry date	Oct 26, 2001

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02B3/06
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

To permit the use of molten glass in a sensor which has excellent characteristics with respect to capability of being melt-connected to a housing (11) while being pressure-resistant, a glass plug (12) is melt-connected to the housing (11) at a point remote from the end facing the combustion chamber; a quartz-glass rod (13), maintained in centered positioned in the housing by a powder or pulverized filling (15) of talcum, graphite, or spinel, is retained in the housing by a retention sleeve (16) pressing against a sealing O-ring (17); a bulge (13a) additionally contributes to maintaining the quartz-glass rod in position, and a spring washer (19) may be used, interposed between the quartz-glass rod (13) and the melted-in window (12) to accommodate differential expansion, under heating, of the filler (15) and the housing (11).

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