Pumps – Motor driven – Electric or magnetic motor
Patent
1986-09-29
1988-03-08
Croyle, Carlton R.
Pumps
Motor driven
Electric or magnetic motor
415113, 415175, 277 34, 310 89, F04B 1700, F04B 3504
Patent
active
047297247
ABSTRACT:
An apparatus for propelling a continuous gas mixture stream of an inert carrier gas and an aggressive doping gas, includes an electric motor having a motor housing filled with pure carrier gas and a shaft with a shaft extension, a radial blower having an impeller mounted directly on the shaft extension and a blower housing filled with the gas mixture and coupled to the motor housing, a gas ring of pure carrier gas being continuously fed and maintained in a ring space for sealing the blower housing against the motor housing in an operating state, and a hollow sealing ring being inflated with compressed gas for sealing the blower housing from the motor housing when the blower is stopped.
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IEEE Journal of Quantum Electronics, vol. 15, No. 9, Sep. 1979, p. 57d, New York, U.S.; J. L. Miller: "High-Purity Closed-Cycle Flow Rose-Gas Malide Laser".
Patents Abstracts of Japan, vol. 7, No. 88, (E-170) [1233], Apr. 12, 1983; & JP-A-58 14589, (Hitachi Seisakusho).
Henning Hans-Heinrich
Lelickens Hartmut
Schramm Herbert
Croyle Carlton R.
Greenberg Laurence A.
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
Szczecina Jr. Eugene L.
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