Control system for an air conditioning/refrigeration system

Refrigeration – With indicator or tester – Condition sensing

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Details

622284, G01L 300

Patent

active

053355075

ABSTRACT:
A microprocessor-based air conditioning/refrigeration control system adapted for use with a variable speed compressor measures acceleration of the compressor and the temperature or pressure of the refrigerant exiting therefrom, determines the rate of change of the temperature or pressure of the refrigerant, and decreases acceleration of the compressor if the rate of change of the temperature or pressure of the working fluid indicates surging of the compressor. Superheat of the refrigerant is maintained at a first predefined level while the compressor is operating at constant speed and is increased to a second, higher predefined level while the compressor is accelerating. The system is able to diagnose deterioration of the compressor by measuring and comparing power input to the compressor and rate of change of temperature or pressure of the refrigerant at the compressor between initial and subsequent periods, and differentiate between deterioration of a drive component or a pressurizing component of the compressor.

REFERENCES:
patent: 3668883 (1972-06-01), Ruff et al.
patent: 3945418 (1970-02-01), Kapich
patent: 4151725 (1979-05-01), Kountz et al.
patent: 4161106 (1979-07-01), Savage et al.
patent: 4177649 (1979-12-01), Venema
patent: 4283920 (1981-05-01), Kainuma et al.
patent: 4362030 (1982-12-01), Voorhis
patent: 4407139 (1983-10-01), Ide et al.
patent: 4510576 (1985-04-01), MacArthur et al.
patent: 4514991 (1985-05-01), Zinsmeyer
patent: 4527399 (1985-07-01), Lord
patent: 4535607 (1985-08-01), Mount
patent: 4538422 (1985-09-01), Mount et al.
patent: 4546618 (1985-10-01), Kountz et al.
patent: 4566289 (1986-01-01), Iizuka et al.
patent: 4571951 (1986-02-01), Szymaszek
patent: 4582124 (1986-04-01), Yoshimi et al.
patent: 4603556 (1986-08-01), Suefuji et al.
patent: 4611470 (1986-09-01), Enstrom
patent: 4616483 (1986-10-01), Leonard
patent: 4646532 (1987-03-01), Nose
patent: 4646535 (1987-03-01), Matsuoka et al.
patent: 4660387 (1987-04-01), Usami
patent: 4662185 (1987-05-01), Kobayashi et al.
patent: 4667480 (1987-05-01), Bessler
patent: 4679404 (1987-07-01), Alsenz
patent: 4686834 (1987-08-01), Haley et al.
patent: 4689967 (1987-09-01), Han et al.
patent: 4689968 (1987-09-01), McCulloch et al.
patent: 4715190 (1987-12-01), Han et al.
patent: 4722196 (1988-02-01), Ishikawa
patent: 4734628 (1988-03-01), Bench et al.
patent: 4738118 (1988-04-01), Kanazawa
patent: 4745767 (1988-05-01), Ohya et al.
patent: 4753083 (1988-06-01), Sato
patent: 4765150 (1988-08-01), Persem
patent: 4768346 (1988-09-01), Mathur
patent: 4794762 (1989-01-01), Orth et al.
patent: 4798057 (1989-01-01), Okamoto et al.
patent: 4821527 (1989-04-01), Suzuki et al.
patent: 4856286 (1989-08-01), Sulfstede et al.
patent: 4858676 (1989-08-01), Bolfik et al.
patent: 4870833 (1989-10-01), Matsuda et al.
patent: 4877081 (1989-10-01), Ohtsu
patent: 4885914 (1989-12-01), Pearman
patent: 4914924 (1990-04-01), Takahashi
patent: 4930320 (1990-06-01), Ide et al.
patent: 4938029 (1990-07-01), Shaw
patent: 4968338 (1990-11-01), Sugiyama
patent: 5054294 (1991-10-01), Dudley
patent: 5065590 (1991-11-01), Powell et al.
patent: 5083438 (1992-01-01), McMullin
patent: 5157934 (1992-10-01), Uchida

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