Refrigeration – Automatic control – Of external fluid or means
Patent
1984-11-30
1986-10-14
Tanner, Harry
Refrigeration
Automatic control
Of external fluid or means
622386, 62243, F25D 1700, B60H 132
Patent
active
046164847
ABSTRACT:
A refrigerant heating and cooling system for a motor vehicle includes an inside coil, an outside coil, expansion valves, a reversing valve, a refrigerant compressor, a chiller and a control device. The compressor, outside coil, an expansion valve and the inside coil define a first circuit for cooling the air within the vehicle. The compressor, inside coil, an expansion valve and the chiller define a second circuit for heating the interior of the vehicle. The chiller is a refrigerant-to-engine coolant heat exchanger. When in the heating mode, the chiller functions as an evaporator, the inside coil functions as a condenser and the engine coolant system is the heat source. The control device varies the flow of the engine coolant through the chiller as a function of the engine coolant temperature in order to maintain a relatively constant set temperature within the vehicle. In the preferred form, the control device is a microprocessor controlled motor driven valve which senses the engine coolant temperature at the inlet to the chiller, a maximum pressure at the compressor discharge or outlet, the vehicle interior temperature, a set or desired temperature and the outside ambient temperature.
REFERENCES:
patent: 1302938 (1919-05-01), Lippert
patent: 2801827 (1957-08-01), Dolza
patent: 2806358 (1957-09-01), Jacobs
patent: 3237862 (1966-03-01), Salerno et al.
patent: 3421339 (1969-01-01), Volk et al.
patent: 3710587 (1973-01-01), Hayashi
patent: 4191023 (1980-03-01), Sisk et al.
patent: 4263785 (1981-04-01), Barniak et al.
patent: 4293092 (1981-10-01), Hatz et al.
patent: 4295344 (1981-10-01), Hannett et al.
patent: 4351161 (1982-09-01), Jones
patent: 4409796 (1983-10-01), Fisher
patent: 4441901 (1984-04-01), Endoh
patent: 4523435 (1985-06-01), Lord
Mehdi Syed A.
Ward David R.
Zieske William E.
Kysor Industrial Corporation
Tanner Harry
LandOfFree
Vehicle refrigerant heating and cooling 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 Vehicle refrigerant heating and cooling system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle refrigerant heating and cooling system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1333997