Refrigeration – Reversible – i.e. – heat pump – With flow control or compressor details
Patent
1998-11-12
2000-07-04
Bennett, Henry
Refrigeration
Reversible, i.e., heat pump
With flow control or compressor details
62527, 62528, F25B 1300
Patent
active
060821280
ABSTRACT:
A pressure reducing assembly is provided for managing refrigerant flow in a reversible HVAC system. Refrigerant lines from the system heat exchangers connect to bi-directional ports of a pressure reducing assembly which converts the high pressure refrigerant flowing from one heat exchanger into pressure reduced refrigerant that flows to the other heat exchanger. The pressure reducing assembly converts bi-directional refrigerant flow from the heat exchangers into unidirectional refrigerant flow through a pressure reducing device. Refrigerant emitted from the pressure reducing device flows out of the pressure reducing assembly to the other heat exchanger. The invention simplifies the interconnection of reversible HVAC systems by eliminating the complex plumbing and extra valves associated with conventional systems. In addition, the invention can further integrate the receiver/drier function into the pressure reducing assembly providing a centralized device for filtering refrigerant flow and ensuring a continuous supply of liquid refrigerant to the pressure reducing device. Also, outlets can be added to the receiver portion of the pressure reducing assembly to provide a source of high pressure liquid refrigerant for secondary heat exchangers.
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Bandeen Robert
Barwin David A.
Cleveland David
Lake Barry J.
Naujock Arthur A.
Bennett Henry
DaimlerChrysler Corporation
Shulman Mark
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