Power plants – Pressure fluid source and motor – Having condition responsive control in a system of distinct...
Patent
1992-08-03
1993-09-21
Look, Edward K.
Power plants
Pressure fluid source and motor
Having condition responsive control in a system of distinct...
60452, 91170R, 91513, F16D 3102
Patent
active
052458270
ABSTRACT:
A hydraulic system includes a hydraulic pump which provides pressurized fluid at an output port as a function of pressure in a load sensing port, a hydraulic reservoir, and a load pressure sensing line connected to the load sensing port. A solenoid operated implement control valve controls fluid communication to and from a hydraulic function such as a cylinder. A supply control valve has a first position wherein the reservoir is communicated with the load sensing port and a second position wherein the pump output port is communicated with the load sensing port. A spring urges the valve member to its first position, and a solenoid is energizable to move the valve member to its second position. The solenoid is energized when the implement control valve is activated so that the supply control valve communicates pump pressure to the load sensing port and the pump will operate at full capacity whenever the second hydraulic function is operated.
REFERENCES:
patent: 3486334 (1969-12-01), Miller
patent: 4023646 (1977-05-01), Heisig et al.
patent: 4046399 (1977-09-01), Zeuner et al.
patent: 4050596 (1977-09-01), Zeuner et al.
patent: 4107924 (1978-08-01), Dezelan
patent: 4276811 (1981-07-01), Zeuner et al.
patent: 4401009 (1983-08-01), Zeuner et al.
patent: 4589437 (1986-05-01), Zeuner et al.
patent: 5077975 (1992-01-01), Kauss
Delfs Larry M.
Durant Douglas M.
Eagles Derek M.
Pratt Ronald L.
Deere & Company
Look Edward K.
Lopez F. Daniel
LandOfFree
Supply valve arrangement for closed center hydraulic system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Supply valve arrangement for closed center hydraulic system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supply valve arrangement for closed center hydraulic system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1042635