Hydrodynamic working circuit with device for reducing air circul

Details Hydrodynamic working circuit with device for reducing air circul Hydrodynamic working circuit with device for reducing air circul

1986-12-19

1988-09-27

Kashnikow, Andres

Brakes

Internal-resistance motion retarder

Using a rotary-type fluid damper

188269, 188274, F16D 5702

Patent

active

047735139

ABSTRACT:
For the reduction of capacity losses and heating in hydrodynamic working circuits, especially retarders, caused by undesired air circulation in emptied condition, it is suggested to introduce a certain quantity of a blocking medium into the working chamber. This blocking medium may be operating fluid, air, or a mixture of both, and can be introduced radially from the inside, from the outside, or from the center. It forms a blocking film by rotation of the bladed rotor wheel, which substantially prevents the circulation of air from one bladed wheel to the other.

REFERENCES:
patent: 2428005 (1947-09-01), Bennett
patent: 2672954 (1954-03-01), Bennett
patent: 3072222 (1963-01-01), Kugel et al.
patent: 3774735 (1973-11-01), Hanke et al.

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