Electrically driven coolant pump for an internal combustion engi

Details Electrically driven coolant pump for an internal combustion engi Electrically driven coolant pump for an internal combustion engi

1996-12-05

1998-07-28

Kamen, Noah P.

Internal-combustion engines

Cooling

With liquid coolant circulating means

417366, 41742314, F01P 510

Patent

active

057850135

ABSTRACT:
A pump-motor unit for pumping a coolant for cooling an internal combustion engine in which a centrifugal pump is connected to an electrically commutated d.c. motor to be driven thereby. A power electronic circuit is mounted on a plate and installed in the unit in connection with the d.c. motor to operate the motor in accordance with signals delivered to said power electronic circuit from an external power source. A cooling body is supported in the unit to cool the power electronic circuit by transferring heat from the power electronic circuit to the coolant. The centrifugal pump and the d.c. motor are interconnected through the cooling body.

REFERENCES:
patent: 2942555 (1960-06-01), Pezzillo
patent: 4310142 (1982-01-01), Ludwig
patent: 4668898 (1987-05-01), Harms
patent: 4836147 (1989-06-01), Morris
patent: 5079488 (1992-01-01), Harms
patent: 5146126 (1992-09-01), Hutchins
patent: 5195494 (1993-03-01), Tuckey
patent: 5398655 (1995-03-01), Tuckey

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