Digital pump with bypass inlet valve

Pumps – Three or more cylinders arranged in parallel – radial – or... – Condition responsive fluid control

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

417296, 417298, 123506, 137522, 1374875, F04B 126

Patent

active

057001367

ABSTRACT:
A pump which has a digitally controlled internal by-pass valve. The pump includes a housing which has a pumping chamber that contains a piston which pumps fluid from an inlet port to an outlet port of the housing. The pump also has an intake valve that moves to an open position when the pump draws in fluid and moves to a closed position when the piston pumps the fluid through the outlet port. The intake valve can be maintained in the open position by a separate hydraulic system so that the piston pumps fluid back through the inlet port and by-passes the outlet port. The separate hydraulic system includes a three-way solenoid control valve which directs fluid to the intake valve to open the valve. The control valve may contain a pair of solenoids which latch an internal spool to control the flow of fluid to the intake valve. The spool can be latched into position by a digital pulse that is provided by an electrical controller. The controller can control the output pressure of the pump by opening the intake valve and by-passing the outlet port.

REFERENCES:
patent: 3225785 (1965-12-01), Goike
patent: 4389167 (1983-06-01), Farr
patent: 5456581 (1995-10-01), Jokela et al.
patent: 5577892 (1996-11-01), Schittler et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Digital pump with bypass inlet valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital pump with bypass inlet valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital pump with bypass inlet valve will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1798175

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.