Method and apparatus for changing operational modes of a transpo

Details Method and apparatus for changing operational modes of a transpo Method and apparatus for changing operational modes of a transpo

1997-12-19

1999-01-19

Sollecito, John M.

Automatic temperature and humidity regulation

Thermostatic

Hot and cold

165291, 62209, G05D 2300

Patent

active

058605940

ABSTRACT:
A method and apparatus for changing operational modes of a transport refrigeration unit, where the unit is capable of operating in a continuous heating/cooling mode or an automatic start/stop heating/cooling mode. A supply air temperature sensor measures the temperature of the air exiting the unit, a return air temperature sensor measures the temperature of the air returning to the unit, and an ambient air temperature sensor measures the temperature of the ambient air outside the unit. A controller electrically connected to the sensors determines if the ambient air temperature is above or below a pre-determined setpoint temperature, determines if the temperature differential across the return and supply air sensors is above or below a pre-determined upper threshold or a pre-determined lower threshold, and then changes the operational mode of the unit based upon such determinations and the prior operational mode of the unit.

REFERENCES:
patent: 4250716 (1981-02-01), Huffman
patent: 4460036 (1984-07-01), Yoshimi et al.

Affiliated with

Also associated with

Rating

Method and apparatus for changing operational modes of a transpo 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 and apparatus for changing operational modes of a transpo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for changing operational modes of a transpo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1241256