Brakes – Internal-resistance motion retarder – Using a rotary-type fluid damper
Patent
1993-11-09
1994-12-20
Butler, Douglas C.
Brakes
Internal-resistance motion retarder
Using a rotary-type fluid damper
303 10, 3031163, F16D 5706
Patent
active
053739213
ABSTRACT:
According to the invention there is provided a hydraulic brake coupled to a rotary shaft. It includes a hydraulic pump connected to the shaft, the pump having a pump inlet, and a pump outlet, a hydraulic loop having an inlet part connected to the pump outlet and an outlet part connected to the pump inlet, a flow control device positioned in the hydraulic loop between the inlet part and the outlet part for controlling flow of hydraulic fluid in the hydraulic loop, and a brake actuator connected to the flow control device for reducing the flow of hydraulic fluid in response to operation of the brake actuator. The pump is advantageously a gearwheel pump, and may include a gearwheel housing having one side formed as a flow-control plate.
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