Dual source heat pump

Patent · Tue Jun 29 00:00:00 EDT 1982

OSTI ID:6458946

Ecker, A L; Pietsch, J A

What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid provides energy for defrosting the second heat exchanger when operating in the air source mode and also provides a alternate source of heat.

• Assignee: Atlantic Richfield Co
• Patent Number(s): US 4336692
• OSTI ID: 6458946
• Resource Relation: Patent File Date: Filed date 16 Apr 1980; Other Information: PAT-APPL-140706
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR-ASSISTED HEAT PUMPS
AIR CONDITIONING
HEAT TRANSFER FLUIDS
HEATING SYSTEMS
AIR FLOW
COMPRESSORS
EVAPORATION
HEAT EXCHANGERS
HEAT PUMPS
REFRIGERANTS
VALVES
AIR CONDITIONERS
CONTROL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
GAS FLOW
PHASE TRANSFORMATIONS
SOLAR AIR CONDITIONERS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
SOLAR HEATING SYSTEMS
WORKING FLUIDS
140901* - Solar Thermal Utilization- Space Heating & Cooling