Dual capillary tube / heat exchanger in combination with cycle priming for reducing charge migration

Patent metadata

Field	Value
Publication number	US-9696077-B2
Application number	US-201213400804-A
Country	US
Kind code	B2
Filing date	Feb 21, 2012
Priority date	Feb 21, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A refrigerator appliance including a multi-capacity compressor and a refrigerant circuit with two conduits and pressure reducing devices arranged in parallel between an evaporator and a condenser. Refrigerant can flow through one, both or none of the conduits and pressure reducing devices. The appliance also has a heat exchanger in contact with either one pressure reducing device, or one conduit between the pressure reducing device and the valve system. The appliance also includes a controller for priming the compressor above a nominal capacity for a predetermined or calculated duration at the beginning of an ON-cycle.

First claim

We claim:

1. A refrigerator appliance, comprising:
a first refrigeration compartment;
a condenser;
at least one evaporator in thermal communication with the first refrigeration compartment;
a refrigerant;
a multi-capacity compressor with a maximum capacity, a minimum capacity, and a nominal capacity;
a refrigerant circuit arranged to allow flow of the refrigerant between the condenser, the at least one evaporator and the compressor, the refrigerant circuit comprising a p…

Assignees

• Gomes Alberto Regio
• Kuehl Steven J
• Litch Andrew D
• Wu Guolian
• Whirlpool Co

Inventors

• Gomes Alberto Regio
• Kuehl Steven J
• Litch Andrew D
• Wu Guolian

Classifications

• F25B2400/052

  Mechanical Engineering · mapped topic

• F25B2600/0251

  Mechanical Engineering · mapped topic

• F25B2600/0253

  Mechanical Engineering · mapped topic

• F25B5/02

  Mechanical Engineering · mapped topic

• F25B2600/2511

  Mechanical Engineering · mapped topic