Dual piston pilot valve

Details Dual piston pilot valve Dual piston pilot valve

1999-10-12

2000-05-16

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

91465, 13759614, 13759618, F15B 13043

Patent

active

060622601

ABSTRACT:
A dual piston pilot valve includes a housing forming first and second cylinders. A first spool is moveable in the first cylinder for engaging the a piston to effect movement of the first piston and a second spool is moveable in the second cylinder for engaging a second piston to effect movement of the second piston. The valve further includes a single pressurized fluid supply port communicating with both the first and second cylinders, a first output port communicating with the first cylinder, a second output port communicating with the second cylinder, a single exhaust port communicating with both the first and second cylinders, and a diaphragm engaging the housing and both the first and second pistons. The diaphragm is positioned between both the first and second spools and both the first and second seal regions of the first and second pistons to effect a seal between the single exhaust port and the first and second spools. Movement of the first piston is controlled independently from the movement of the second piston, and vice versa.

REFERENCES:
patent: 3223120 (1965-12-01), Lansky et al.
patent: 4616674 (1986-10-01), Bardoll
patent: 4763691 (1988-08-01), Hahmann
patent: 4924902 (1990-05-01), Lewis et al.
patent: 5454399 (1995-10-01), Kazakis et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-250589