Motor driven environmentally safe pump

Details Motor driven environmentally safe pump Motor driven environmentally safe pump

1994-06-03

1995-05-02

Look, Edward K.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415109, 415111, 4151682, 4151711, 4151735, 415231, 417420, 41742311, 41742312, 277 88, F04D 2914

Patent

active

054113660

ABSTRACT:
A motor driven environmentally safe pump includes a sealed motor housing (22) sealingly affixed to a sealed pump housing. The pump housing defines a fluid pumping chamber (43) in which is a fluid pumping impeller (46). A triplex rotating seal (31) is disposed rearward of impeller (46) within an annular fluid chamber (87) so as to prevent the fluid being pumped via the impeller (46) from leaking along the shaft (23) toward the motor (21). A piston seal (32) is provided adjacent a second fluid chamber (204), the piston seal also for preventing fluid from leaking into the motor housing and damaging the motor.

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