Multi-evaporator appliance having a multi-directional valve for delivering refrigerant to the evaporators

Patent metadata

Field	Value
Publication number	US-10514194-B2
Application number	US-201715611294-A
Country	US
Kind code	B2
Filing date	Jun 1, 2017
Priority date	Jun 1, 2017
Publication date	Dec 24, 2019
Grant date	Dec 24, 2019

Abstract

A refrigerating appliance includes a refrigerant line having a compressor and a condenser. A thermal exchange media is delivered from the condenser and through the refrigerant line to at least a freezer evaporator of a plurality of evaporators, wherein the thermal exchange media leaving the freezer evaporator defines spent media that is returned to the compressor. A multi-directional outlet valve selectively delivers the thermal exchange media to the freezer evaporator, wherein the multi-directional outlet valve also selectively delivers the thermal exchange media to at least one secondary evaporator of the plurality of evaporators to define a partially-spent media that is delivered to the freezer evaporator.

First claim

What is claimed is:

1. A refrigerating appliance comprising:
a refrigerant line having a compressor and a condenser;
a thermal exchange media that is delivered from the condenser and through the refrigerant line to at least a freezer evaporator of a plurality of evaporators, wherein the thermal exchange media leaving the freezer evaporator defines spent media that is returned to the compressor; and
a multi-directional outlet valve that selectively delivers the thermal exchange media to the freezer evaporator, wherein the multi-directional outlet valve also selectively delivers the thermal exchange media to at least one secondary evaporator of the plurality of evaporators to define a partially-spent media that is delivered to the freezer evaporator, wherein the refrigerant line includes a multi-directional inlet valve that selectively receives at least one of the thermal exchange media from the multi-directional outlet valve and the partially-spent media from the at least one secondary evaporator for delivery to the freezer evaporator.

2. The refrigerating appliance of claim 1 , wherein the freezer evaporator and each of the secondary evaporators includes a dedicated media expansion device that is positioned within the refrigerant line and downstream of the multi-directional outlet valve.

3. The refrigerating appliance of claim 1 , wherein the secondary evaporators include a pantry evaporator and a refrigerator evaporator.

4. The refrigerating appliance of claim 3 , wherein a pantry fan is positioned proximate the pantry evaporator for selectively moving pantry process air across the pantry evaporator, wherein the pantry fan operates when the thermal exchange media is delivered from the multi-directional outlet valve to the pantry evaporator.

5. The refrigerating appliance of claim 3 , wherein a refrigerator fan is positioned proximate the refrigerator evaporator for selectively moving refrigerator process air across the refrigerator evaporator, wherein the refrigerator fan operates when the thermal exchange media is delivered from the multi-directional outlet valve to the refrigerator evaporator.

6. The refrigerating appliance of claim 3 , wherein a freezer fan is positioned proximate the freezer evaporator for selectively moving freezer process air across the freezer evaporator, wherein the freezer fan operates when the thermal exchange media is delivered from the multi-directional outlet valve to the freezer evaporator, and wherein the freezer fan is selectively operable between active and idle states when the partially-spent media is delivered from at least one of the pantry and refrigerator evaporators to the freezer evaporator.

7. The refrigerating appliance of claim 6 , wherein the idle state of the freezer fan defines passage of the partially-spent media through the freezer evaporator when a freezer compartment served by the freezer evaporator defines a desired freezer temperature.

8. The refrigerating appliance of claim 6 , wherein the multi-directional outlet valve is operable to define a multi-evaporator position, wherein the thermal exchange media is delivered substantially simultaneously to the pantry evaporator and the refrigerator evaporator.

9. The refrigerating appliance of claim 1 , wherein the refrigerant line is free of check valves.

10. The refrigerating appliance of claim 1 , wherein the refrigerant line is free of a separate pump-out operation.

Assignees

• Whirlpool Co

Inventors

• Avhale Amit A
• Kulkarni Rishikesh Vinayak
• Pickles E Calvin
• Zhang Yan
• Sathyamurthi Vijaykumar

Classifications

• F25B5/02

  arranged in parallel · CPC title

• F25B5/04

  arranged in series · CPC title

• F25B49/02

  for compression type machines, plants or systems · CPC title

• F25D11/022 Primary

  with two or more evaporators · CPC title

• F25D17/065

  with compartments at different temperatures · CPC title