Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1989-09-29
1990-06-26
Nilson, Robert G.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
303 841, 303119, F16K 3122
Patent
active
049363344
ABSTRACT:
The differential pressure shuttle valve (10) comprises a stepped bore (14) having enlarged (16) and reduced (18) diameter sections. The reduced diameter section (18) communicates with first (20), second (22), and third (24) openings, and the enlarged diameter section (16) is divided into two chambers (50, 60) by an enlarged end (42) of a valve member (40, 140, 240). The valve member (40, 140, 240) includes a central through passage (48, 148, 248) which communicates with the first chamber (50) between the enlarged end (42) of the valve member (40) and the enlarged diameter section (16) of the stepped bore (14). The second chamber (60) is defined between the enlarged end (42) of the valve member (40) and a shoulder (17) disposed between the enlarged (16) and reduced (18) diameter sections of the bore (14). The second chamber (60) communicates with a fourth opening ( 70) and includes therein a resilient member (80) which biases the valve member (40, 140, 240) away from the first opening (20). A pressure differential across the valve member (40, 140, 240) causes the valve member (40, 140, 240) to shuttle and compress the resilient member (80) so that a reduced end (44, 144, 244) of the valve member (40, 140, 240) engages an end of the bore (14) or insert (28, 90, 228) such that the first opening (20) is isolated from the second (22) and third (24) openings.
REFERENCES:
patent: 2161642 (1939-06-01), Stroup
patent: 2386585 (1945-10-01), Blank
patent: 2654564 (1953-10-01), Pech
patent: 2729226 (1956-01-01), Jones
patent: 2811979 (1957-11-01), Presnell
patent: 3550966 (1970-12-01), Leiber
patent: 3774976 (1973-11-01), Parsons
patent: 3806201 (1974-04-01), Montanari
patent: 4168100 (1979-09-01), Yama
patent: 4187871 (1980-02-01), Hendrickson
patent: 4685749 (1987-08-01), Otsuki
patent: 4736990 (1988-04-01), Brown et al.
patent: 4833620 (1989-06-01), Sypniewski
patent: 4844119 (1989-07-01), Martinic
Allied-Signal Inc.
Decker Ken C.
Nilson Robert G.
Palguta Larry J.
LandOfFree
Differential pressure shuttle 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 Differential pressure shuttle valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential pressure shuttle valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1119376