Electronically commutated motor driven apparatus

Details Electronically commutated motor driven apparatus Electronically commutated motor driven apparatus

1989-08-22

1992-01-07

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Responsive to thermal conditions

318254, 417 32, 417356, 4174237, 123 4102, 123 4144, F01P 716, F04B 3504

Patent

active

050794884

ABSTRACT:
An apparatus for pumping fluid such as an integral pump/motor is provided. A housing having an inlet and an outlet has a rotatable assembly including an impeller located within and adapted to rotate within the housing to move fluid through the housing from the inlet to the outlet. Secured to the exterior of the housing is a stationary assembly for applying an electromagnetic field through the housing to and around the impeller to rotate the impeller and thereby to cause it to move fluid through the housing.
The apparatus is for use in a cooling system, such as a cooling system of an automobile engine, to pump fluid through the cooling system. A temperature sensor is provided for sensing the temperature of the fluid within the cooling system. An electronic control, responsive to the temperature sensor, supplies electrical power to stationary assembly.
Also, a method of circulating fluid within a system, such as a cooling system of an automobile engine, is disclosed. An electromagnetic field is applied through a housing to and around a rotatable assembly including an impellar located in the housing thereby to axially rotate the impeller and cause it to move fluid through the housing.

REFERENCES:
patent: 2606540 (1952-08-01), Tchaoussoglou
patent: 3357413 (1967-12-01), Quinton
patent: 3708251 (1973-01-01), Pierro
patent: 3938913 (1976-02-01), Isenberg et al.
patent: 4123666 (1978-10-01), Miller
patent: 4156407 (1979-05-01), Moll et al.
patent: 4212270 (1980-07-01), Nakanishi et al.
patent: 4257395 (1981-03-01), Wieder
patent: 4257745 (1981-03-01), Thur et al.
patent: 4434749 (1984-03-01), Morita et al.
patent: 4650633 (1987-03-01), Youngborg

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