Automotive drive comprising a water-based retarder

Details Automotive drive comprising a water-based retarder Automotive drive comprising a water-based retarder

2004-09-08

2010-12-07

Nguyen, Xuan Lan (Department: 3657)

Brakes

Internal-resistance motion retarder

Using a rotary-type fluid damper

Reexamination Certificate

active

07845477

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.

REFERENCES:
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patent: 4458792 (1984-07-01), Thomas et al.
patent: 4836341 (1989-06-01), Hall, III
patent: 5794588 (1998-08-01), Vogelsang et al.
patent: 5829562 (1998-11-01), Adams et al.
patent: 2005/0016804 (2005-01-01), Vogelsang et al.
patent: 100 54 078 (2002-05-01), None

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