Fluid handling – Systems – Sequentially closing and opening alternately seating flow...
Patent
1993-06-16
1994-08-09
Nilson, Robert G.
Fluid handling
Systems
Sequentially closing and opening alternately seating flow...
91390, 280714, B60G 1126
Patent
active
053356950
ABSTRACT:
A height control valve is for controlling the height of an air spring is disclosed, wherein the controlled height of the air spring can be easily adjusted. The height control valve comprises an interior bore in communication with an inlet port, an exhaust port and an air spring port. A hollow piston is movable within the valve bore in response to changes in the height of an air spring. A sealing member is biased onto a valve seat to seal the inlet port, and an open end of the piston abuts the sealing member to seal the exhaust port. Movement of the piston toward the sealing member disengages the sealing member from its valve seat, placing the spring port into communication with the inlet port. Axial movement of the piston away from the disk valve places the spring port into communication with the exhaust port through the interior of the piston. The controlled height of the air spring is adjusted by adjusting the axial position of the seat within the valve bore.
REFERENCES:
patent: 2939724 (1960-06-01), Broadwell et al.
patent: 2959426 (1960-11-01), Augustin
patent: 2989983 (1961-06-01), Valentine
patent: 2997314 (1961-08-01), Hill
patent: 3048193 (1962-08-01), Cislo
patent: 3071394 (1963-01-01), Miller
patent: 3091257 (1963-05-01), Ballard
patent: 3145032 (1964-08-01), Turek
patent: 3209784 (1965-10-01), Schwartz
patent: 3635460 (1972-01-01), Shilton et al.
patent: 4886092 (1989-12-01), Barzelay
patent: 5161579 (1992-11-01), Anderson, Jr.
SAE Technical Paper 881881 explaining the background of the Neway height control valve. Nov. 1988.
The Neway brochure discloses a conventional height control valve of the prior art wherein the spool is fixed in position, axially. 1992.
NAI Neway, Inc.
Nilson Robert G.
LandOfFree
Height control valve with adjustable spool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Height control valve with adjustable spool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Height control valve with adjustable spool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-210045