Power plants – Pressure fluid source and motor – Having condition responsive control in a system of distinct...
Patent
1986-04-18
1987-02-17
Michalsky, Gerald A.
Power plants
Pressure fluid source and motor
Having condition responsive control in a system of distinct...
60452, 137270, 13759613, F15B 1306
Patent
active
046429840
ABSTRACT:
The invention relates to a hydraulic system of the type in which a pump unit supplies pressurized fluid to a plurality of bidirectional servomotors. The system includes at least two modules each of which includes a bidirectional servomotor, a control valve and a compensating valve on the upstream side of the control valve. The pump unit includes a feedback loop having a throttle and a pump pressure regulator in series. Each of the modules has a sensing conduit connected to a common header which is operable to sense load pressure at the upstream side of the control valve for controlling the compensating valve in accordance with the load pressure. A pressure divider comparator valve is connected to the header and a point in the feedback loop between the throttle and the pump pressure regulator. The comparator valve is operable to compare the pressure at such point with the pressure in the header and to bleed pressurized fluid from that point to the tank to equalize the pressures.
REFERENCES:
patent: 2892312 (1959-06-01), Allen et al.
patent: 3444689 (1969-05-01), Budzich
patent: 3470694 (1969-10-01), Budzich
patent: 3754400 (1973-08-01), Parquet
patent: 4051868 (1977-10-01), Andersen
Danfoss A/S
Easton Wayne B.
Michalsky Gerald A.
LandOfFree
Control device for at least one hydraulically operated load does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control device for at least one hydraulically operated load, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control device for at least one hydraulically operated load will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1930842