Method of refrigeration case control

Details Method of refrigeration case control Method of refrigeration case control

1995-03-01

1996-07-09

Wayner, William E.

Refrigeration

Processes

Compressing, condensing and evaporating

62212, 236 78D, F25B 4100

Patent

active

055333478

ABSTRACT:
A method of controlling a refrigeration case of a refrigeration system including the steps of locating an expansion valve of a refrigeration case, moving the expansion valve of the refrigeration case out of a predetermined position, sampling temperature readings from an evaporator coil of a refrigeration case, calculating an adaptive proportional-integral-differential (PID) of the temperature of the evaporator coil for the refrigeration case, and moving the expansion valve to a second position closer to the predetermined position based on the calculated proportional-integral-differential until the temperature of the evaporator coil for the refrigeration case is within a predetermined temperature range.

REFERENCES:
patent: 4183223 (1980-01-01), Alsenz
patent: 4523435 (1985-06-01), Lord
patent: 4531376 (1985-07-01), Alsenz
patent: 4535602 (1985-08-01), Alsenz et al.
patent: 4537038 (1985-08-01), Alsenz et al.
patent: 4578959 (1986-04-01), Alsenz
patent: 4593533 (1986-06-01), Alsenz
patent: 4612776 (1986-09-01), Alsenz
patent: 4628700 (1986-12-01), Alsenz
patent: 4633672 (1987-01-01), Persem et al.
patent: 4651535 (1987-03-01), Alsenz
patent: 4679404 (1987-07-01), Alsenz
patent: 4686835 (1987-08-01), Alsenz
patent: 4697431 (1987-10-01), Alsenz
patent: 4735060 (1988-04-01), Alsenz
patent: 4825662 (1989-05-01), Alsenz
patent: 4831832 (1989-05-01), Alsenz
patent: 4918932 (1990-04-01), Gustafson et al.
patent: 4951475 (1990-08-01), Alsenz
patent: 5050397 (1991-09-01), Sugiyama et al.
patent: 5191643 (1993-03-01), Alsenz
patent: 5428966 (1995-07-01), Alsenz
patent: 5444987 (1995-08-01), Alsenz

Affiliated with

Also associated with

Rating

Method of refrigeration case control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of refrigeration case control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of refrigeration case control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1859580