SENSOR DEVICE FOR ACQUIRING AT LEAST ONE ROTATIONAL PROPERTY OF A ROTATING ELEMENT

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United States of America Patent

APP PUB NO 20150233735A1
SERIAL NO

14426050

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A sensor device for acquiring at least one rotational property of a rotating element, particularly a rotational speed of a compressor wheel of an exhaust-gas turbocharger, includes at least one magnetic field generator for generating a magnetic field at the location of the rotating element, at least one magnetic sensor, e.g., a coil, for acquiring a magnetic field generated by eddy currents of the rotating element, and at least one pole pin. The pole pin is elongated at its end facing the rotating element and includes a section that is not enclosed by the magnetic sensor. The sensor can be installed as a plug sensor in a blind-end bore in the housing of the exhaust-gas turbocharger.

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBHPOSTFACH 30 02 20 70442 STUTTGART
BOSCH MAHLE TURBO SYSTEMS GMBH & CO KGLOEWENTORSTRASSE 68 STUTTGART 70376

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lerchenmueller, Klaus Rettenberg, DE 26 55
Weiss, Hartmut Stuttgart, DE 12 59
Yashan, Andre Stuttgart, DE 6 19

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