Pumps – One fluid pumped by contact or entrainment with another – Jet pump with motive fluid generating pump
Patent
1987-09-02
1989-04-11
Smith, Leonard E.
Pumps
One fluid pumped by contact or entrainment with another
Jet pump with motive fluid generating pump
417 89, 417151, 417195, 239600, 138109, F04B 2304, F04B 3912
Patent
active
048201316
ABSTRACT:
A shallow well centrifugal pump having a casing forming a fluid flow cavity and having a fluid intake end with a threadless bore and a suction inlet communicating with the cavity through the bore, and a diffuser disposed in the casing cavity and spaced from the casing intake end. The diffuser has a threadless opening defined therein leading to an impeller. A venturi nozzle assembly is supported in the casing cavity between the casing intake end and the diffuser. The assembly has threadless opposite end portions disposed in slidably removable slip fitted relation within the casing intake end and diffuser in the respective threadless bore and opening therein. Endless sealing elements preferably in the form of O-rings are fitted about the respective threadless opposite end portions of the venturi nozzle assembly for providing hermetic seals between the assembly opposite end portions and the casing intake end and the diffuser. The venturi nozzle assembly includes a supply and recirculation fluid intake conduit, a venturi tube and a nozzle which are preferably composed of plastic material and fabricated using injection molding techniques.
REFERENCES:
patent: 265246 (1882-10-01), Conord
patent: 297880 (1884-04-01), Van Riper et al.
patent: 2272906 (1942-02-01), Da Col
patent: 2403556 (1946-07-01), Ruth
patent: 2524269 (1950-10-01), Patterson
patent: 2615397 (1952-10-01), Conery
patent: 2700338 (1955-01-01), Smith
patent: 2786417 (1957-03-01), Lung
patent: 2853014 (1958-09-01), Carpenter
patent: 2911916 (1959-11-01), Bliss
patent: 2938471 (1960-05-01), Jacuzzi et al.
patent: 2941474 (1960-06-01), Hall
patent: 2987002 (1961-06-01), Schipper
patent: 3018799 (1962-01-01), Volkmann et al.
patent: 3031127 (1962-04-01), Duhaime et al.
patent: 3063377 (1962-11-01), Stanley et al.
patent: 3291051 (1966-12-01), Ekey
patent: 3369735 (1968-02-01), Hoffmeister
patent: 3394655 (1968-07-01), Brown
patent: 3830530 (1974-08-01), Glover
patent: 4142839 (1979-03-01), Davis et al.
patent: 4580816 (1986-04-01), Campbell et al.
patent: 4627792 (1986-12-01), Jensen et al.
Blackmon Robert
Pappas George
Smith Leonard E.
Wayne/Scott Fetzer Company
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