Expansion valve control

Details Expansion valve control Expansion valve control

1992-12-24

1994-07-12

Black, Thomas G.

Boots, shoes, and leggings

364510, 364166, 62 504, 62210, F25B 4100, G05B 1302

Patent

active

053294629

ABSTRACT:
A control for the expansion valve of an air conditioning system interrupts a decision to deactivate one or more stages of compression and proceeds to calculate a new expansion valve position based upon the amount of capacity to be lost by the deactivated stages of compression. The expansion valve is commanded to the calculated position before the compressors are deactivated.

REFERENCES:
patent: 4523435 (1985-06-01), Lord
patent: 4523436 (1985-06-01), Schedel et al.
patent: 4593881 (1986-06-01), Yoshino
patent: 4831832 (1989-05-01), Alsenz
patent: 5067326 (1991-11-01), Alsenz
patent: 5170635 (1992-12-01), Wruck et al.

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