Sheathed Element Glow Plug Having a Combustion Chamber Pressure Sensor

a technology of pressure sensor and glow plug, which is applied in the direction of lighting and heating apparatus, instruments, machines/engines, etc., can solve the problems of inability to implement additional bore holes in practice, increased assembly effort, and inability to meet the requirements of the application of the system,
US20080264373A1Inactive Publication Date: 2008-10-30ROBERT BOSCH GMBH
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
ROBERT BOSCH GMBH
Publication Date
2008-10-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

A sheathed element glow plug includes an integrated combustion chamber pressure sensor for a self-igniting internal combustion engine for measuring combustion chamber pressures, in particular for combustion chamber signal-based engine control. The sheathed element glow plug has a heating element and a glow plug housing, as well as a glow plug axis. The glow plug housing has a receptacle area for receiving the heating element, a housing body, and at least one flexibility area situated between the housing body and the receptacle area. At least one force measuring element is installed in the glow plug housing.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to a sheathed element glow plug having an integrated combustion chamber pressure sensor. Sheathed element glow plugs of this type are used in particular in self-igniting internal combustion engines for measuring a combustion chamber pressure.BACKGROUND INFORMATION

[0002] As a result of increasingly strict exhaust gas legislation, in particular for diesel engines, the demands for reduced emissions of harmful substances by self-igniting internal combustion engines are becoming stricter. Today's engine management systems are expected to ensure low emissions of harmful substances and low fuel consumption, in addition to having a long service life at the same time. Combustion may be optimized in the combustion chamber of a diesel engine in particular by using regulated injection of fuel. Regulated injection may be controlled in particular by electronic engine control units, which are already routinely used in today's motor vehicles....

Claims

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