SHEATHED-ELEMENT HEATER PLUG WITH INTEGRATED PRESSURE MEASURING ELEMENT

Title:

SHEATHED-ELEMENT HEATER PLUG WITH INTEGRATED PRESSURE MEASURING ELEMENT

Document Type and Number:

WIPO Patent Application WO2006108738

Kind Code:

A3

Abstract:

A combustion-signal based control system requires a reliable, cost-effective option for detecting the pressure in the combustion chamber of compression-ignition internal combustion engines. The invention thus relates to a sheathed-element heater plug (110) comprising a heater plug module (112) and a pressure measuring module (114) that is connected to the heater plug module (112). The heater plug module (112) comprises a heating body (124) and a heater plug housing (118). The pressure measuring module (114) comprises at least one force measuring element (132) that is integrated into the pressure measuring module (114). The force measuring element(s) (132) is or are configured to generate an electric signal in accordance with a force (130). Said element or elements (132) is or are connected to the heating body (124), when the sheathed-element heater plug (110) is fitted, in such a way that a force (130) can be transferred to the force measuring element (132) or elements via said heating body (124).

Inventors:

KERN CHRISTOPH (DE)
SCHOTT STEFFEN (DE)
SALTIKOV PAVLO (DE)

Application Number:

PCT/EP2006/060421

Publication Date:

December 14, 2006

Filing Date:

March 03, 2006

Export Citation:

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Assignee:

BOSCH GMBH ROBERT (DE)
KERN CHRISTOPH (DE)
SCHOTT STEFFEN (DE)
SALTIKOV PAVLO (DE)

International Classes:

F23Q7/00

Foreign References:

DE102004043874A1	2006-03-16
EP1598651A2	2005-11-23
DE10346330A1	2005-05-04
EP1517086A1	2005-03-23
DE10346296A1	2004-04-22
DE656168C	1938-01-31

Other References: