Refrigeration – Automatic control – Refrigeration producer
Reexamination Certificate
2005-07-19
2005-07-19
Tanner, Harry B. (Department: 3744)
Refrigeration
Automatic control
Refrigeration producer
C062S126000, C062S505000, C417S280000
Reexamination Certificate
active
06918261
ABSTRACT:
In an electric compressor integrally comprising a compression mechanism, a motor and an electric circuit (inverter) for driving the motor, the electric circuit is protected from thermal damage.When an actual number of revolutions is not more than a fixed number of revolutions and the temperature of an electric circuit13exceeds a fixed temperature, the temperature Tm of a motor12and the temperature Ti of the electric circuit13are lowered by increasing the number of revolutions of the motor, and when the actual number of revolutions is more than a fixed number of revolutions and the temperature of the electric circuit13exceeds a fixed temperature, the temperature Tm of the motor12and the temperature Ti of the electric circuit13are lowered by decreasing the number of revolutions of the motor.
REFERENCES:
patent: 5651260 (1997-07-01), Goto et al.
patent: 6041609 (2000-03-01), Hornsleth et al.
patent: 6116040 (2000-09-01), Stark
patent: 6341496 (2002-01-01), Kettner et al.
patent: 6434960 (2002-08-01), Rousseau
patent: 6523361 (2003-02-01), Higashiyama
Iritani Kunio
Toriyama Katsuyoshi
DENSO Corporation
Harness Dickey & Pierce PLC
Tanner Harry B.
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