Automotive drive comprising a water-based retarder
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United States of America Patent
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Dec 7, 2010
Grant Date -
May 10, 2007
app pub date -
Sep 8, 2004
filing date -
Sep 15, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an automotive drive, comprising a cooling circuit with a coolant, a retarder having a rotor and a stator that together form a toroidal working chamber, with the coolant being the working medium of the retarder. The retarder has an inlet for feeding the working medium from the cooling circuit and an outlet for discharging the working medium into the cooling circuit. The present automotive drive is characterized by the following features: the retarder has an additional evacuation outlet, which communicates with the cooling circuit so as to carry the working medium; a leakage pump is interposed in the connection between the evacuation outlet and the cooling circuit.
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