Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Reexamination Certificate
2008-05-13
2008-05-13
Patidar, Jay M (Department: 2862)
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
C324S207250, C324S207200, C324S207210
Reexamination Certificate
active
07372253
ABSTRACT:
A sensor for measuring the rotational speed of a turboshaft of a turbocharger includes a sensor housing and a sensor element which is positioned in the sensor housing and which senses a variation of a magnetic field caused by the rotation of the turboshaft. In order to provide a sensor for measuring the rotational speed of a turboshaft which can be produced simply and at low cost and also can be integrated in a turbocharger without major structural modifications, the sensor element can be positioned outside the turbocharger, on or in a compressor housing, and a pole piece is arranged on the sensor element in such a way that it concentrates the magnetic field in the sensor element.
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Biber Peter
Gilch Markus
Roux Jean-Louis
Simonnet Antoine
Cohen Pontani Lieberman & Pavane LLP
Patidar Jay M
Siemens Aktiengesellschaft
Siemens VDO Automotive
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