Pumps – One fluid pumped by contact or entrainment with another – Jet pump with motive fluid generating pump
Patent
1994-01-14
1995-10-17
Bertsch, Richard A.
Pumps
One fluid pumped by contact or entrainment with another
Jet pump with motive fluid generating pump
417 80, 417 84, 417 87, 417 88, 417 89, F04B 2308
Patent
active
054584671
ABSTRACT:
A pump (10) for providing water from a source to a remote location includes a casing (11) which receives the water through an inlet port (22) which is provided to the remote location through a discharge port (20). An impeller (30) in the casing (11) is rotated by a motor (23). A diffuser (35) is positioned adjacent to the impeller (30) and has a shoulder (42) facing the inlet port (22). A nozzle (44) is mounted in the inlet port (22) to receive low pressure water from the source which is transmitted to a venturi tube (43) positioned between the diffuser shoulder (42) and the front wall (16) of the casing (11). The venturi tube (43) directs water to the impeller (30) and diffuser (35) which provide water at high pressure, upon demand, through the discharge port (20) and also recirculates high pressure water in the casing (11) to the venturi tube (43) through openings (51) in the wall thereof.
REFERENCES:
patent: 2700338 (1955-01-01), Smith
patent: 2810346 (1957-10-01), Lung
patent: 2934021 (1960-04-01), Conery et al.
patent: 2938471 (1960-05-01), Jacuzzi et al.
patent: 3063377 (1962-11-01), Stanley et al.
patent: 3291051 (1966-12-01), Ekey
patent: 4627792 (1986-12-01), Jensen et al.
patent: 4767281 (1988-08-01), Sailer
patent: 4820131 (1989-04-01), Johnson
August 1990 Parts List and Exploded Views of Two Pumps (HJ & HD Series Ejecto Pumps) Manufactured by The F. E. Myers Division of Pentair, Inc., Ashland, Ohio.
A Portion of an engineering drawing showing the 1/3 HP pump of Reference 3 assembled; 1977.
A portion of an engineering drawing showing the 3/4 HP pump of Reference 3 assembled; 1972.
Bertsch Richard A.
Kim Ted
McNeil (Ohio) Corporation
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