Electric vacuum pump

Details Electric vacuum pump Electric vacuum pump

F - Mech Eng,Light,Heat,Weapons

04

B

230/45

F04B 45/04 (2006.01) F04B 45/047 (2006.01) H02K 33/10 (2006.01)

Patent

CA 1123401

ELECTRIC VACUUM PUMP ABSTRACT OF THE DISCLOSURE There is disclosed herein an improved vacuum pump driven by a unique electrically powered servo motor. The vacuum pump comprises an extremely simple and inexpensive pump arrangement utilizing a reciprocating piston and a rolling lobe diaphragm to eliminate the need for close tolerances while still providing high efficiency. The servo motor includes a pair of relatively movable sequenti- ally operating armatures which eliminate the need for any external timing mechanism or for any complex delay mechan- ism. The servo motor of the present invention is inherently capable of operating the pump as a self-actuating demand pump.

331397

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