FAST SWITCHING MULTIPLE EVAPORATOR SYSTEM FOR AN APPLIANCE

Title:

FAST SWITCHING MULTIPLE EVAPORATOR SYSTEM FOR AN APPLIANCE

Document Type and Number:

WIPO Patent Application WO/2020/143629

Kind Code:

A1

Abstract:

Various embodiments of fast switching multiple evaporator system for an appliance are provided. In one example aspect, a sealed system charged with a refrigerant fluid includes a single compressor (210) and a first and second evaporator (240, 260) fluidly coupled in series. A flash tank (270) is positioned between the evaporators (240, 260). One or more valves (280) are fluidly coupled with and positioned downstream of the flash tank (270) and the second evaporator (260). The valves (280) are operable to selectively switch the flow of refrigerant fluid between the two evaporators (240, 260) at a frequency such that the temperature rise in the evaporators (240, 260) is negligible. In another aspect, a sealed system charged with a refrigerant fluid includes a single compressor (310) and a first and second evaporator (340, 360) fluidly coupled in parallel. One or more valves (380, 381, 382) positioned upstream of the evaporators (340, 360) and one or more valves (385, 386, 387) are positioned downstream of the evaporators (340, 360) for controlling the refrigerant flow through the sealed system. The above systems improve the energy efficiency of appliances.

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JPS58190672	CONTROLLER FOR TEMPERATURE OF REFRIGERATOR
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WO/2003/023297	REFRIGERATING APPLIANCE COMPRISING TWO EVAPORATORS

Inventors:

VIJAYAN VINEETH (US)
KYRIACOU STEPHANOS (US)

Application Number:

PCT/CN2020/070714

Publication Date:

July 16, 2020

Filing Date:

January 07, 2020

Export Citation:

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Assignee:

QINGDAO HAIER REFRIGERATOR CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER US APPLIANCE SOLUTIONS INC (US)

International Classes:

F25B5/04; F25B1/00; F25B5/02; F25B49/00

Foreign References:

CN106288473A	2017-01-04
CN107152809A	2017-09-12
CN101535745A	2009-09-16
CN108007005A	2018-05-08
CN203857702U	2014-10-01
CN108515825A	2018-09-11
CN107218740A	2017-09-29
CN107576090A	2018-01-12
CN108139130A	2018-06-08
US9187724B1	2015-11-17
JP2001201236A	2001-07-27
KR100776371B1	2007-11-16

Attorney, Agent or Firm:

WISEAST INTELLECTUAL PROPERTY LAW FIRM (CN)

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