Agitating – Jet or spray impinging free-falling stream
Patent
1981-04-01
1983-07-26
Jenkins, Robert W.
Agitating
Jet or spray impinging free-falling stream
241 4617, 366 76, 366295, 366296, 415 59, 415 66, 415 74, 417250, B01F 512
Patent
active
043951309
ABSTRACT:
A novel dual or more interconnected pumping mechanisms pump is provided herein. It comprises a first pumping mechanism within a casing. A first pumping mechanism is provided within the casing, the first pumping mechanism having an operating shaft within the casing, the operating shaft being operated by a motor. The first pumping mechanism has pumping structure so constructed and arranged as exclusively to provide a high pressure, low volume aqueous liquid flow, the first pumping mechanism having axial output. A second pumping mechanism is also provided within the casing, and is in direct liquid flow connection with the first pumping mechanism, the second pumping mechanism also having an operating shaft within the casing, the operating shaft being operated by the same motor. The second pumping mechanism has pumping structure so constructed and arranged as exclusively to provide a low pressure, high volume aqueous liquid flow. The second pumping mechanism has an axial input in direct liquid flow connection to the axial output of the first pumping mechanism. It has a first radial port at the liquid flow connection between the first pumping mechanism and the second pumping mechanism, and a second port at the opposite end thereof. A connection is made between the first pumping mechanism and the second pumping mechanism, the connection being within the casing and being in the axial path of liquid flow, thereby obviating the need of the shaft seal between the output of the first pumping mechanism and the input of the second pumping mechanism. This obviates the need for a shaft seal at the second pumping mechanism and eliminates plural motors and plural seals with their attendant frictional losses and leaks at the seals. Consequently, total horsepower requirements are lower.
REFERENCES:
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patent: 3976453 (1976-08-01), Brown
patent: 3985348 (1976-10-01), Skidmore
patent: 4260739 (1981-04-01), Geyer
patent: 4289409 (1981-09-01), Brand
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