Refrigeration – Automatic control – Refrigeration producer
Patent
1987-11-13
1988-12-13
Davis, Jr., Albert W.
Refrigeration
Automatic control
Refrigeration producer
62225, 123 4131, 123541, F25B 4100, F25B 4104, F02M 1500, F02M 3120
Patent
active
047901454
ABSTRACT:
A system for preventing vapor-lock in a positively pressurized loop-type engine fuel line having the low pressure or tank return portion of the fuel line passing through a heat exchanger disposed in the refrigerant line for the vehicle air conditioner between the endothermic heat exchanger or evaporator and the compressor inlet. A thermistor senses the temperature of the refrigerant discharging from the fuel line heat exchanger and a pressure transducer senses evaporator discharge saturation pressure. Look-up tables are used to determine saturation temperature from the saturation pressure, and saturation temperature and actual refrigerant temperature compared to generate a pulse-width modulated control signal for controlling an electrically operated refrigerant expansion valve to maintain a desired amount of superheat at the discharge of the fuel line heat exchanger.
REFERENCES:
patent: 4155337 (1979-05-01), Hensley
patent: 4571951 (1986-02-01), Szymaszek
patent: 4617804 (1986-10-01), Fukushima et al.
patent: 4677830 (1987-07-01), Sumikawa et al.
Thompson Michael B.
Torrence Robert J.
Davis Jr. Albert W.
Eaton Corporation
Ford John K.
Johnston R. A.
LandOfFree
Superheat control of air conditioning system incorporating fuel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Superheat control of air conditioning system incorporating fuel , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superheat control of air conditioning system incorporating fuel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2189789