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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11576552 B1

PDFFull Text
Date of Patent:
Feb. 14, 2023

Filed:

Nov. 27, 2019

Dish washer

Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Sangheon Yoon, Seoul, KR;

Changyoon Jung, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Benjamin L Osterhout

Assistant Examiner:

Pallavi Chitta

Int. Cl.
CPC ...
A47L 15/42 (2006.01); A47L 15/00 (2006.01); A47L 15/48 (2006.01); F24H 4/02 (2022.01);
U.S. Cl.
CPC ...
A47L 15/4285 (2013.01); A47L 15/0047 (2013.01); A47L 15/4214 (2013.01); A47L 15/4217 (2013.01); A47L 15/4223 (2013.01); A47L 15/4225 (2013.01); A47L 15/4287 (2013.01); A47L 15/4291 (2013.01); A47L 15/483 (2013.01); F24H 4/02 (2013.01); A47L 15/4219 (2013.01); A47L 2401/12 (2013.01); A47L 2501/06 (2013.01); A47L 2501/36 (2013.01); Y02B 30/52 (2013.01); Y02B 40/00 (2013.01);
Abstract

A dish washer includes: a washing tank including a sump at a bottom surface thereof; a water storage unit disposed inside or outside the washing tank to store washing water to be supplied to the washing tank; a heat pump system including a compressor that compresses and circulates refrigerant, a first heat exchanger disposed in the sump, an expansion apparatus, and a second heat exchanger disposed in the water storage unit to heat washing water for washing the dishes; and a reverse valve that changes a flow of refrigerant flowing through each of the first heat exchanger and the second heat exchanger to allow each of the first heat exchanger and the second heat exchanger to be switched from each other between a heating mode for heating the washing water and a heat recovery mode for recovering heat from washing water discharged to the outside from the washing tank.

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