High speed hydrodynamic brake

Details High speed hydrodynamic brake High speed hydrodynamic brake

1979-12-17

1981-07-07

Reger, Duane A.

Brakes

Internal-resistance motion retarder

Using a rotary-type fluid damper

303 11, F16D 5702

Patent

active

042769701

ABSTRACT:
A hydrodynamic brake is disclosed. It comprises a working chamber with a rotor and a stator in it. An inlet supplies fluid to the working chamber which tends to increase the braking torque. An outlet permits exit of fluid from the working chamber, which tends to decrease the braking torque. An overflow valve may be opened or closed to selectively permit or prohibit exit of working fluid from the working chamber outlet. A pressure source, such as the pressure in the working chamber, normally holds the overflow valve open. A regulating valve is connected by a pressurized connection with the overflow valve and the regulating valve selectively opens or closes the overflow valve. The regulating valve compares the desired braking torque, which is established by an operating lever for the brake, with the actual braking torque, and the regulating valve opens or closes the overflow valve for tending to bring the actual braking torque to the desired braking torque. The pressure source may communicate with the pressurized connection through the regulating valve.

REFERENCES:
patent: 3989127 (1976-11-01), Staudenmaier et al.

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