Document Type and Number:
Japanese Patent JPS5035610
Kind Code:
A
Abstract:
An electric variable-speed drive, especially for driving a sewage or waste water pump, comprising an electric motor and a hydro-dynamic transmission unit connected after the electric motor, the degree of filling of the transmission unit with a fluid medium being variable. The transmission unit is arranged in a chamber of the motor housing containing the hydraulic fluid medium, and a conveyor mechanism is provided between the aforementioned chamber and a compartment of the motor for bringing about fluid medium exchange.
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Application Number:
JP9255873A
Publication Date:
April 04, 1975
Filing Date:
August 20, 1973
Export Citation:
International Classes:
F04D13/02; F04D13/06; F16D33/16; F16H61/64; H02K5/132; H02K7/10; (IPC1-7): H02K7/10