Method of operating a transport refrigeration unit

Details Method of operating a transport refrigeration unit Method of operating a transport refrigeration unit

1991-10-24

1993-03-30

Chambers, A. Michael

Automatic temperature and humidity regulation

Motors

Electric

165 26, 364557, F25B 2900

Patent

active

051976706

ABSTRACT:
A method of operating a transport refrigeration system having a refrigerant compressor driven by a prime mover. Electrical control maintains the temperature of a load in a conditioned space close to a desired set point via heating, cooling and null cycles, with the prime mover being started and stopped, as required, in response to the difference between the temperature of the conditioned space and a selected set point temperature, i.e., temperature error. Restarting of the prime mover is dynamically controlled by controlling the magnitude of the restart temperature error in response to the difference between the temperature of the conditioned space and ambient temperature.

REFERENCES:
patent: 4419866 (1983-12-01), Howland
patent: 4663725 (1987-05-01), Truckenbrod et al.
patent: 4694890 (1987-09-01), Zarate
patent: 4878465 (1989-11-01), Hanson et al.
patent: 4918932 (1990-04-01), Gustafson et al.
patent: 4934593 (1990-06-01), Meyer
patent: 4977751 (1990-12-01), Hanson

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