Pump

Details Pump Pump

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 2/00 (2006.01) F04C 15/00 (2006.01)

Patent

CA 2088611

A gear pump which is fitted with a magnetic coupling (6) to ensure against leaks uses circulation of the pump fluid to cool the magnetic coupling. The circula- tion is established by supplying the pump rotor (4) with radial channels (24) which terminate in recesses on the periphery of the rotor and which are connected to an axial channel (26) in the rotor shaft leading to the end of the shaft which is nearest the magnetic coupling. The fluid which is drawn through the channels (24) is mixed with the main stream of fluid in a sec- tion which is cut out of the wall of the pump chamber (16), and fresh cooling fluid is drawn via the chamber (40) to the radial gap in the magnetic coupling.

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