Pressure balanced valve for adjustable hydraulic damper

Details Pressure balanced valve for adjustable hydraulic damper Pressure balanced valve for adjustable hydraulic damper

1983-11-10

1985-06-04

Stoner, Jr., Bruce H.

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

91422, 91447, 1375121, 1376142, 188279, 188299, 280707, F16F 950, F16F 946

Patent

active

045209081

ABSTRACT:
To assure adjustability under all internal pressure conditions a hydraulic damper having a hollow piston rod, a piston on the end of the rod slidable in a fluid filled tube and cooperating with the latter in defining inversely variable volume compression and rebound chambers, and at least two relief valves on the piston connected to the compression chamber for passing fluid thereto at two different levels of pressure relief, includes a right cylindrical valve spool in the piston rod bore rotatable between a plurality of control positions corresponding to pressure relief at the different relief pressure levels, first passages between the rebound chamber and the piston rod bore, second passages between each of the relief valves and the piston rod bore, first circumferentially symmetrically arrayed ports in the valve spool registerable with the first passages to always connect the rebound chamber to the valve spool, second circumferentially symmetrically arrayed ports in the valve spool to selectively connect respective ones of the relief valves to the valve spool, and a hollow tube through the valve spool open to the compression chamber to equalize pressure on opposite ends of the valve spool.

REFERENCES:
patent: 1135923 (1915-04-01), Reynolds
patent: 3763970 (1973-10-01), Anderson
patent: 4298102 (1981-11-01), Nishikawa et al.
patent: 4313529 (1982-02-01), Kato et al.
patent: 4337850 (1982-07-01), Shimokura
patent: 4463839 (1984-08-01), Ashiba

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-824505