Variable displacement compressors which estimate an...

Details Variable displacement compressors which estimate an... Variable displacement compressors which estimate an...

2006-01-31

2006-01-31

Freay, Charles G. (Department: 3746)

Pumps

With signal, indicator, or inspection means

C417S222100

Reexamination Certificate

active

06991435

ABSTRACT:
A variable displacement compressor includes a plate having a variable inclination angle, and a piston engaging the plate. The piston reciprocates within a bore of the compressor in accordance with a rotation of the plate, and the piston has a stroke length which is determined by the inclination angle of the plate. The compressor also includes a sensor positioned adjacent to the piston. The sensor generates an output signal when a predetermined portion of the piston is aligned with the sensor. The compressor also includes a processing unit operationally coupled to the sensor. The processing unit estimates the inclination angle of the plate based on the output signal from the sensor.

REFERENCES:
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patent: 6102490 (2000-08-01), Ko
patent: 6848254 (2005-02-01), Du
patent: 6848888 (2005-02-01), Du et al.
patent: 599156 (1993-04-01), None
patent: 5164045 (1993-06-01), None

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