Patent · US Active

Pressure measuring glow plug

US9541291B2 · kind B2 · utility

1Cited by

0References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Janpeter Wolff · Gerlingen, DE
Wolfgang Koetzle · Ehningen, DE
Holger Scholzen · Stuttgart, DE

Key dates

Filing date	Jan 22, 2013
Grant date	Jan 10, 2017
Priority date	—
Expiry date	Jan 22, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23Q2007/005
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A pressure measuring glow plug includes: a housing in which a heating pin for igniting a combustion mixture of an internal combustion engine and a pressure measuring unit for recording a combustion chamber pressure of the internal combustion engine are situated. The heating pin has a glow current contact for an electric heating element. At the end of the heating pin facing away from the combustion chamber, a pressure transmitting element is fastened, which transmits the combustion chamber pressure acting on the heating pin to the pressure measuring unit. The pressure transmitting element is sleeve-shaped and forms an accommodation space for the glow current contact of the heating element.

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