Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1978-08-23
1981-05-05
Cohan, Alan
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
137468, 1375121, 13754315, 13762415, 137887, 1375651, 251333, 417442, F16K 500, F16K 1500, F16K 1738
Patent
active
042652677
ABSTRACT:
To control the flow of fluid from a positive displacement pump to a consumer line, a rotating shutter periodically opens return flow nozzles which permit the pressure-free return of the pumped fluid to a fluid reservoir. In order to provide hydraulic balancing of the forces on the shutter, the return flow nozzles are disposed symmetrically with respect to the axis of the rotating shutter. Pressure peaks which occur when the return flow nozzles are closed cause undesirable noise generation and these pressure peaks are reduced by the disposition of separate check valves associated with each of the symmetric flow conduits. The use of separate check valves reduces the length of the fluid column which must be accelerated upon nozzle closure. To reduce the opening stroke of the check valve, the edge of the valve seat meanders thereby extending its effective length. Axial play of the rotating shutter is controlled by the disposition of a spring loaded glide block.
REFERENCES:
patent: 687041 (1901-11-01), Logan
patent: 1808209 (1931-06-01), Earl
patent: 1990263 (1935-02-01), Benedek
patent: 2016503 (1935-10-01), Kenworthy
patent: 2649273 (1953-08-01), Honegger
patent: 2704035 (1955-03-01), Bader
patent: 2725076 (1955-11-01), Hansen et al.
patent: 2980173 (1961-04-01), Perkey
patent: 3152603 (1964-10-01), Zeisloft
patent: 3316846 (1967-05-01), Bender
patent: 3532106 (1970-10-01), Greure
patent: 3788351 (1974-01-01), Conklin, Jr.
patent: 3919923 (1975-11-01), Haigh
patent: 4164240 (1979-08-01), Cyphelly
patent: 4188144 (1980-02-01), Peters et al.
Chambers A. Michael
Cohan Alan
LandOfFree
Flow control device for use with positive displacement pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flow control device for use with positive displacement pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow control device for use with positive displacement pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-292263