Pressure holding valve

Motors: expansible chamber type – With motive fluid valve – Relatively movable serial valves

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

91448, 91420, 91 31, 13762549, F15B 1108, F15B 1304

Patent

active

052339106

ABSTRACT:
A pressure holding valve for pressure-fluid-actuated leveling systems in vehicles, having at least one seat valve with a valve opening, a valve seat and a valve member in which the valve member is opened by a control piston acted upon by pressure fluid. In order to achieve an absolutely pressure-tight seat valve with a long service life, an elastomer seal which seals off from the valve member is disposed on the valve seat, and pressure equalizing means are provided such that upon an impingement of pressure on the control piston in an opening direction of the seat valve, pressure build up upstream of the valve member is such that only a slight pressure difference arises at the seal at the onset of opening. In addition, the valve member is embodied such that upon displacement in a closing direction of the seat valve, the valve member substantially closes the valve opening in advance of the valve member becoming seated upon the seal.

REFERENCES:
patent: 3795178 (1974-03-01), Roche
patent: 3795255 (1974-03-01), Malott et al.
patent: 3809201 (1974-05-01), Miyanishi et al.
patent: 4172582 (1979-10-01), Bobnar
patent: 4244275 (1981-01-01), Smilges
patent: 4651624 (1987-03-01), Beck
patent: 4727792 (1988-03-01), Haussler
patent: 4779647 (1988-10-01), Christian
patent: 4811649 (1989-03-01), Heusser

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

Pressure holding 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 Pressure holding valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure holding valve will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1718381

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