Fluid handling – Pressure modulating relays or followers – With counter-balancing pressure feedback to the modulating...
Patent
1981-09-01
1984-09-11
Cohan, Alan
Fluid handling
Pressure modulating relays or followers
With counter-balancing pressure feedback to the modulating...
137596, 1376275, F15B 500
Patent
active
044704267
ABSTRACT:
A vacuum control valve includes a body having a vacuum inlet port, a vacuum outlet port and an atmospheric inlet port formed therein, a movable diaphragm type mechanism positioned within the body to define a vacuum chamber and an atmospheric chamber within the body wherein the vacuum chamber is in communication with the vacuum outlet port and the atmospheric chamber is in communication with the atmospheric inlet port and wherein the movable mechanism is movable in response to change in vacuum pressure within the vacuum chamber, a spring mechanism normally biasing the movable mechanism in a first position, a valve mechanism movable in association with the movable mechanism to thereby control fluid communication between the vacuum inlet port and the vacuum chamber, and between the atmospheric inlet port and the vacuum chamber and a regulating mechanism which further includes a cam mechanism rotatably mounted within the body and operatively associated with the spring mechanism wherein the cam mechanism is rotated in response to loads applied to the vacuum control valve to thereby adjust the biasing force of the spring mechanism.
REFERENCES:
patent: 4134418 (1979-01-01), Woodcock
patent: 4166476 (1979-09-01), Yamanaka et al.
patent: 4254938 (1981-03-01), Inada et al.
patent: 4293118 (1981-10-01), Olson et al.
patent: 4315521 (1982-02-01), Anderson et al.
patent: 4316479 (1982-02-01), Franz et al.
patent: 4347699 (1982-09-01), Kitamura
patent: 4366670 (1983-01-01), Kitamura
Aisin Seiki Kabushiki Kaisha
Cohan Alan
Rivell John A.
LandOfFree
Vacuum control 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 Vacuum control valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum control valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1190349