Patent · US Active

Spark plug incorporating a pressure sensor

US8196459B2 · kind B2 · utility

0Cited by

7References

10Claims

0Family size

Inventors

Alain Ramond · Merville, FR
Paul Tinwell · Fayence, FR

Key dates

Filing date	Jun 28, 2007
Grant date	Jun 12, 2012
Priority date	—
Expiry date	Nov 8, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01L23/222
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The spark plug comprises: —a central electrode (2), —an insulating core (6) bearing the central electrode (2), —an external body (8) in which the insulating core (6) is mounted and which has a region (18) where the external body (8) is crimped onto the insulating core (6), and—a force sensor (30). The force sensor (30) is mounted at the periphery of the external body (8) between, on the one hand, a bearing element (38) secured to a first peripheral region of the external body (8) and, on the other hand, a second peripheral region (24) of the external body (8). The second peripheral region (24) of the external body (8) is further away from the crimping region (18) than the first peripheral region. The bearing element (38) is prestressed against the force sensor (30).

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