Compressor system with a freewheeling expander

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United States of America Patent

PATENT NO 8795907
APP PUB NO 20110207023A1
SERIAL NO

12708935

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A fuel cell system is disclosed that employs an expander for recovering mechanical energy from a cathode exhaust fluid produced by the fuel cell system to generate torque. The expander is coupled to a shaft of a compressor with a freewheel mechanism, wherein the freewheel mechanism transfers the torque from the expander to the compressor when a rate of rotation of a driveshaft of the expander is greater than the rate of rotation of the shaft of the compressor, and selectively militates against the expander acting as a restrictor to the shaft of the compressor when a rate of rotation of the driveshaft of the expander is substantially equal to or less than a rate of rotation of the shaft of the compressor.

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Patent Owner(s)

  • GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Becker, Marc Idstein, DE 52 407
Fontaine, Remy Wiesbaden, DE 10 68
Tighe, Thomas W Bloomfield, US 26 154

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