Pumps – Motor driven – Motor rotor intermediate coaxial pump rotors
Patent
1991-04-18
1993-01-26
Bertsch, Richard A.
Pumps
Motor driven
Motor rotor intermediate coaxial pump rotors
417 22, 417205, 417372, F04B 3504
Patent
active
051818370
ABSTRACT:
An electric motor driven inline hydraulic apparatus comprising a housing having end plates closing said housing, an electric motor stator mounted in said housing, an electric motor rotor, a shaft on which the rotor is mounted is journalled in the housing and a vane type pump mounted on one of the end plates. The shaft extends through an opening in the end plate and is connected to the vane rotor of the pump. Hydraulic fluid is supplied to the interior of the electric motor housing and flows through passages in the housing to the intake of the vane pump on the end plate. In one form, the vane pump delivers fluid through an outlet in the end plate on which it is mounted. In another form, the vane pump delivers fluid through an outlet in the pump housing.
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Bertsch Richard A.
Freay Charles G.
Vickers Incorporated
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