Pumps – With condition responsive pumped fluid control – Plural separate sensing means for a single fluid controller
Patent
1991-08-05
1993-04-06
Bertsch, Richard A.
Pumps
With condition responsive pumped fluid control
Plural separate sensing means for a single fluid controller
417288, 417292, 417300, 417428, 417287, 280707, 280714, F04B 4906
Patent
active
051998548
ABSTRACT:
The first of two serially arranged electromagnetically operated spool type drain control valves is conditioned to select the drain passage of smaller the pump before the second valve is moved from its closed or communication cut-off position, to its open position wherein hydraulic fluid can be drained therethrough, whereby the spool of the second valve is exposed to a relatively small flow generated force which acts thereon and which tends to move the valve spool toward to its closed position. In another embodiment the hydraulic fluid temperature is monitored and used to modify the control schedule via which the switching of the drain control valves is determined. A further embodiment monitors a parameter which is indicative of the prime mover rotational speed and inhibits the closure of the second of the two valves when the rotational speed is above a predetermined limit.
REFERENCES:
patent: 4848790 (1989-07-01), Fukunaga et al.
patent: 5083811 (1992-01-01), Sato et al.
patent: 5085459 (1992-02-01), Sato et al.
Bertsch Richard A.
Nissan Motor Co,. Ltd.
Scheuermann David W.
LandOfFree
Hydraulic supply arrangement for use with active automotive susp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic supply arrangement for use with active automotive susp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic supply arrangement for use with active automotive susp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-532086