Pumps – Motor driven – Electric or magnetic motor
Patent
1988-03-01
1989-01-10
Croyle, Carlton R.
Pumps
Motor driven
Electric or magnetic motor
F04B 1700
Patent
active
047970715
ABSTRACT:
The invention provides a motor and vane-pump set comprising a vane-pump comprising a stator (53) and a rotor (50) fitted with vanes (52) and extended by a shaft (51), with the rotor and stator assembly being disposed in a tank (71) which is partially filled with oil, with the shaft rotating in bearings lubricated by said oil and fitted with sealing rings (61,62), said pump being rotated by an electric motor comprising a stator (44) and a rotor (48) fitted with a shaft (48), the motor and vane-pump set being characterized in that the rotor shafts (48, 51) of the motor and the pump are joined together and in that an envelope (75) of non-magnetic material is disposed between the stator (44) and the rotor (47) of the motor, said envelope being closed at its far end from the pump by a cover (77), and bearing in sealed manner at its opposite end on a motor end plate (76) which is fixed to the pump.
REFERENCES:
patent: 2762311 (1956-09-01), Litzenberg
patent: 2763214 (1956-09-01), White
patent: 2825286 (1958-03-01), White
patent: 2958292 (1960-11-01), Lipe et al.
patent: 3192861 (1965-07-01), Haegh
patent: 3309009 (1967-03-01), Culk
patent: 3515167 (1970-06-01), Svenson
patent: 4123201 (1978-10-01), Andriolis
patent: 4362480 (1982-12-01), Suzuki et al.
Alcatel
Croyle Carlton R.
Thorpe Timothy S.
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