F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/24
F04B 23/08 (2006.01) F04B 23/04 (2006.01)
Patent
CA 1162105
ABSTRACT OF THE DISCLOSURE A novel dual or more interconnected pumping mechanism is pro- vided herein. It comprises a casing. A first pump 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 connec- tion between the first pumping mechanism and the second pumping mechanism, and a second port at the opposite end thereof. A connection is made be- tween 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.
374419
Borden Ladner Gervais Llp
Kutowy Oleh
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