Power plants – Pressure fluid source and motor – Having a mechanical clutch or brake device in the power train
Patent
1986-07-16
1988-03-08
Wayner, William E.
Power plants
Pressure fluid source and motor
Having a mechanical clutch or brake device in the power train
91461, F16D 3102
Patent
active
047292229
ABSTRACT:
The brake circuit apparatus for a hydraulic motor in a hydraulic circuit system having at least one main hydraulic pump, a hydraulic motor driven by a hydraulic fluid supplied from the main pump and having a rotary shaft, and a directional control valve actuated by an operation device for control of flow rate and flow direction of the hydraulic fluid supplied to the hydraulic motor from the main pump. The hydraulic motor is provided with a mechanical brake device having a brake release cylinder adapted to release the rotary shaft of the motor from the braking by the mechanical brake device by supply of a hydraulic fluid to the brake release cylinder. The apparatus further has an auxiliary hydraulic pump and a control circuit connected to the auxiliary pump, brake release cylinder and reservoir for control of fluid communication therebetween. The control circuit includes a hydraulic fluid supply line for receiving a hydraulic fluid supplied from the auxiliary hydraulic pump, a first line connected between the hydraulic fluid supply line and the brake release cylinder, and a second line connected between the hydraulic fluid supply line and the reservoir.
REFERENCES:
patent: 4100973 (1978-07-01), Freudenthal
patent: 4317331 (1982-03-01), Aruga et al.
patent: 4464898 (1984-08-01), Aoyagi et al.
patent: 4557109 (1985-12-01), Nagahara et al.
patent: 4571941 (1986-02-01), Aoyagi et al.
European Search Report EP 86 10 9746 8/10/86.
Hirata Toichi
Mihara Shin'ichi
Sugiyama Genroku
Tanaka Hideaki
Yoshida Kuniaki
Hitachi Construction Machinery Co. Ltd.
Wayner William E.
LandOfFree
Brake circuit apparatus for hydraulic motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Brake circuit apparatus for hydraulic motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brake circuit apparatus for hydraulic motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-226112