Refrigeration – With indicator or tester – Operatively correlated with automatic control
Patent
1988-08-26
1990-02-27
Tanner, Harry B.
Refrigeration
With indicator or tester
Operatively correlated with automatic control
62160, 62229, F25B 4900
Patent
active
049034987
ABSTRACT:
A ratiometric temperature controller for a transport refrigeration system, and a method of controlling the load temperature of a transport refrigeration system with digital signals provided in response to an analog ratio between the load temperature and a selected set point temperature. A logic array is programmed to provide a plurality of transport refrigeration system control signals in response to predetermined values of the digital signal. The resolution of the control is increased by having the digital signal respond to a temperature range relatively close to set point, which is a much smaller range than the temperature range over which the set point may be selected. The logic array will respond to a forcing signal which, when true, indicates the need for a high speed cooling mode, when the load temperature is above set point and the system is already in a cooling mode.
REFERENCES:
patent: 4143707 (1979-03-01), Lewis et al.
patent: 4161880 (1979-07-01), Prosky
patent: 4234927 (1980-11-01), First
patent: 4257238 (1981-03-01), Kountz et al.
patent: 4288853 (1981-09-01), Uesugi
patent: 4292813 (1981-10-01), Paddock
patent: 4313308 (1982-02-01), Boratgis et al.
patent: 4325224 (1982-04-01), Howland
patent: 4358936 (1982-11-01), Ito et al.
patent: 4380155 (1983-04-01), Paddock
patent: 4403296 (1983-09-01), Prosky
patent: 4419866 (1983-12-01), Howland
patent: 4432210 (1984-02-01), Saito
patent: 4443117 (1984-04-01), Mursmoto et al.
patent: 4455095 (1984-06-01), Bleiker
patent: 4463436 (1984-07-01), Veneklase
patent: 4493191 (1985-01-01), Hanson
patent: 4504010 (1985-03-01), Sukimoto et al.
patent: 4504922 (1985-03-01), Johnson et al.
Lackey D. R.
Tanner Harry B.
Thermo King Corporation
LandOfFree
Temperature controlling for a transport refrigeration system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature controlling for a transport refrigeration system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature controlling for a transport refrigeration system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-165277