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WO2016108789A1 - A heat pump dishwasher - Google Patents

A heat pump dishwasher Download PDF

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Publication number
WO2016108789A1
WO2016108789A1 PCT/TR2015/050204 TR2015050204W WO2016108789A1 WO 2016108789 A1 WO2016108789 A1 WO 2016108789A1 TR 2015050204 W TR2015050204 W TR 2015050204W WO 2016108789 A1 WO2016108789 A1 WO 2016108789A1
Authority
WO
WIPO (PCT)
Prior art keywords
tank
water
heat exchanger
dishwasher
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/TR2015/050204
Other languages
French (fr)
Inventor
Onur Poyraz
Levent Akdag
Ahmet Alptekin
Sena Davasligil
Osman Gokhan Ersoy
Ugur Kan
Nurgul Gokdere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcelik AS
Original Assignee
Arcelik AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Priority to US15/536,598 priority Critical patent/US20170354314A1/en
Priority to EP15817625.5A priority patent/EP3240465A1/en
Publication of WO2016108789A1 publication Critical patent/WO2016108789A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/483—Drying arrangements by using condensers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Definitions

  • the present invention relates to a dishwasher comprising a heat pump providing the heating of the wash water.
  • a heat pump is used for heating the wash water, by circulating the wash water through a water tank wherein the heat exchanger is disposed, heat is transferred to the wash water from the heat exchanger. If the water in the tank cannot be completely discharged at the end of the washing process, the water remaining inside the tank causes corrosion on the plates of the heat exchanger, preferably produced from copper, thus shortening the lifespan of the heat exchanger. Moreover, the water in the tank becoming green due to its contact with copper contaminates the wash water in the following washing cycles. Moreover, the water collected in the tank causes formation of bacteria and bad odors, leading to problems in terms of hygiene.
  • the heat pump and the tank must be placed into a small volume at the base of the dishwasher, preventing structural freedom required for simple solutions.
  • a dishwasher comprising a spiral tank that is disposed at the lowermost point of the outlet port.
  • a dishwasher comprising a spiral tank with an outlet port that is arranged at the base thereof and that can be opened/closed by a valve.
  • the aim of the present invention is the realization of a dishwasher wherein the tank enclosing the heat exchanger is efficiently discharged.
  • the dishwasher realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a tank wherein one of the first heat exchanger or the second heat exchanger is placed and that is disposed into the body so that the base thereof is inclined with respect to the floor so as to prevent the accumulation of water therein. With the inclined structure of the tank base, water is prevented from accumulating in the tank and the water inside the tank is enabled to be almost completely discharged.
  • a block disposed under the tank provides the inclination of the tank base with respect to the floor.
  • the base of the tank is rendered inclined with respect to the floor.
  • the block is produced integrated with the tank.
  • the upper surface of the block forms the base of the tank.
  • the base of the tank is rendered inclined with respect to the floor and the water inside the tank is discharged before accumulating.
  • the upper surface of the block is curved. With the curved configuration of the upper surface of the block, the tank receives more water.
  • an inlet port provide the entry of water into the tank and an outlet port through which the water inside the tank is discharged are oppositely positioned on the two opposite lateral surfaces of the tank.
  • the suction level of which is lower than the level of the outlet port in the vertical direction
  • the water in the tank is discharged to the outside.
  • the pump is a circulation pump providing the circulation of the wash water.
  • the pump is only a discharge pump providing the discharge of the tank.
  • Figure 1 - is the schematic view of a dishwasher.
  • Figure 2 - is the schematic view of the heat pump and the tank related to an embodiment of the present invention.
  • Figure 3 - is the sideways view of the tank and the pump related to another embodiment of the present invention.
  • Figure 4 - is the perspective view of the tank and the pump related to another embodiment of the present invention.
  • Figure 5 - is the cross-sectional view of the tank related to another embodiment of the present invention.
  • Figure 6 - is the schematic view of the tank related to another embodiment of the present invention.
  • Figure 7 - is the schematic view of the tank related to yet another embodiment of the present invention.
  • Pump The dishwasher (1) comprises a body (2); a heat pump (3) that is disposed inside the body (2), that provides the heating of the water to be used in the washing step and that has a first heat exchanger (4), a second heat exchanger (5) transferring the heat received from the first heat exchanger (4) to the wash water and a compressor (6) fluidly connected to the first heat exchanger (4) and the second heat exchanger (5), realizing the refrigerant cycle, and a tank (7) wherein the first heat exchanger (4) or the second heat exchanger (5) is placed.
  • the first heat exchanger (4) or the second heat exchanger (5) By placing the first heat exchanger (4) or the second heat exchanger (5) into a tank (7) containing water, a heat transfer with the water inside the tank (7) is provided. By transferring heat to the water, the water is enabled to be heated, and in the case heat is drawn from the water, the effectiveness of the heat pump (3) is improved. For example, when the wash water is filled into the tank (7) wherein the second heat exchanger (5) is disposed, the wash water is heated or when the mains water is filled into the tank (7) wherein the first heat exchanger (7) is disposed, heat is drawn from the mains water.
  • the tank (7) is placed into the body (2) so that the base thereof is inclined with respect to the floor plane.
  • the heat pump (3) is preferably located under the tub (not shown in the figures) wherein the washing process is carried out, among water pipes, pumps and water receptacles.
  • the dishwasher (1) comprises a block (10) that is disposed under the tank (7) and that enables the base of the tank (7) to be inclined with respect to the floor.
  • the block (10) By means of the block (10), the tank (7) is raised from its bottom side, thus the base thereof is enabled to be inclined with respect to the floor and thus the water is prevented from accumulating inside the tank (7).
  • the block (10) is produced integrated with the tank (7).
  • the upper surface of the block (10) is curved. With the curved configuration of the upper surface of the block (10) integrated with the tank (7), the block (10) is enabled to occupy less space. Thus, while the water is prevented from accumulating inside the tank (7), the tank (7) volume can be used more efficiently.
  • the tank (7) has an inlet port (8) that enables the water to enter the tank (7) and an outlet port (9) that enables the water to be discharged out of the tank (7), the inlet port (8) and the outlet port (9) being disposed at the two opposite surfaces of the tank (7).
  • the tank (7) is placed into the body (2) so that the outlet port (9) is at a lower level than the inlet port (8).
  • a flow is provided inside the tank (7).
  • the tank (7) is placed into the body (2) so that the base thereof is inclined with respect to the floor and the water flows from the inlet port (8) towards the outlet port (9).
  • the water entering the tank (7) flows towards the outlet port (9) by drawing or giving off heat.
  • the water inside the tank (7) is discharged through the outlet port (9) without accumulating on the base thereof.
  • the dishwasher (1) comprises a pump (11) that is connected to the outlet port (9), the suction level of which is at a lower level than the outlet port (9).
  • the water inside the tank (7) is discharged out of the tank (7) by means of a pump (11), the suction level of which is at a level lower than the outlet port (9).
  • the pump (11) is a circulation pump providing the circulation of the wash water.
  • the wash water is circulated inside the tank (7) and the discharge of the wash water from the tank (7) is provided by means of the circulation pump (11).
  • an additional pump is not required for discharging the water inside the tank and by means of the circulation pump (11) providing the circulation of the wash water inside the tank (7) during the heating of the wash water, the water inside the tank (7) is enabled to be discharged.
  • the pump (11) is a discharge pump providing the discharge of the tank (7).
  • the water inside the tank (7) is directly discharged without being sent to the sump of the dishwasher (1).
  • the waste water containing copper oxides is enabled to be discharged without contacting the dishes.
  • the water is prevented from accumulating in the tank (7) situated at the bottom side of the dishwasher (1), the base of the tank (7) is configured so as to be inclined and the tank (7) is enabled to be discharged by means of the pump (11).

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

The present invention relates to a dishwasher (1) comprising a body (2); a heat pump (3) that is disposed inside the body (2), that provides the heating of the water to be used in the washing step and that has a first heat exchanger (4), a second heat exchanger (5) transferring the heat received from the first heat exchanger (4) to the wash water and a compressor (6) fluidly connected to the first heat exchanger (4) and the second heat exchanger (5), realizing the refrigerant cycle, and a tank (7) wherein the first heat exchanger (4) or the second heat exchanger (5) is placed.

Description

A HEAT PUMP DISHWASHER
The present invention relates to a dishwasher comprising a heat pump providing the heating of the wash water. In dishwashers wherein a heat pump is used for heating the wash water, by circulating the wash water through a water tank wherein the heat exchanger is disposed, heat is transferred to the wash water from the heat exchanger. If the water in the tank cannot be completely discharged at the end of the washing process, the water remaining inside the tank causes corrosion on the plates of the heat exchanger, preferably produced from copper, thus shortening the lifespan of the heat exchanger. Moreover, the water in the tank becoming green due to its contact with copper contaminates the wash water in the following washing cycles. Moreover, the water collected in the tank causes formation of bacteria and bad odors, leading to problems in terms of hygiene. One other factor that makes it difficult to solve these problems is that the heat pump and the tank must be placed into a small volume at the base of the dishwasher, preventing structural freedom required for simple solutions.
In the state of the art Korean Patent Application No. KR101337796, a dishwasher is disclosed, comprising a spiral tank that is disposed at the lowermost point of the outlet port. In the state of the art Japanese Patent Application No. JPH0819498, a dishwasher is disclosed, comprising a spiral tank with an outlet port that is arranged at the base thereof and that can be opened/closed by a valve.
The aim of the present invention is the realization of a dishwasher wherein the tank enclosing the heat exchanger is efficiently discharged. The dishwasher realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a tank wherein one of the first heat exchanger or the second heat exchanger is placed and that is disposed into the body so that the base thereof is inclined with respect to the floor so as to prevent the accumulation of water therein. With the inclined structure of the tank base, water is prevented from accumulating in the tank and the water inside the tank is enabled to be almost completely discharged.
In another embodiment of the present invention, a block disposed under the tank provides the inclination of the tank base with respect to the floor. In this embodiment, by means of the block placed under the tank in order to prevent the accumulation of water in the tank, the base of the tank is rendered inclined with respect to the floor.
In a version of this embodiment, the block is produced integrated with the tank. The upper surface of the block forms the base of the tank. Thus, the base of the tank is rendered inclined with respect to the floor and the water inside the tank is discharged before accumulating.
In another embodiment of the present invention, the upper surface of the block is curved. With the curved configuration of the upper surface of the block, the tank receives more water.
In an embodiment of the present invention, an inlet port provide the entry of water into the tank and an outlet port through which the water inside the tank is discharged are oppositely positioned on the two opposite lateral surfaces of the tank. By performing the water intake and discharge into/from the tank through different ports, a flow is provided in the tank. Moreover, the tank is positioned so that the inlet port is at a higher level than the outlet port. By means of this embodiment, the water received into the tank flows towards the outlet port thanks to the inclination of the base with respect to the floor and the water accumulation in the tank is prevented.
In another embodiment of the present invention, by means of a pump, the suction level of which is lower than the level of the outlet port in the vertical direction, the water in the tank is discharged to the outside. By positioning the pump under the tank level, the tank is enabled to be completely emptied.
In another embodiment of the present invention, the pump is a circulation pump providing the circulation of the wash water. In another embodiment of this embodiment, the pump is only a discharge pump providing the discharge of the tank. By means of the present invention, by placing the tank into the body at the bottom side of the dishwasher so that the base thereof is inclined towards the outlet port, the water accumulation inside the tank and thus the corrosion of the heat exchanger are prevented.
The dishwasher realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
Figure 1 - is the schematic view of a dishwasher.
Figure 2 - is the schematic view of the heat pump and the tank related to an embodiment of the present invention.
Figure 3 - is the sideways view of the tank and the pump related to another embodiment of the present invention.
Figure 4 - is the perspective view of the tank and the pump related to another embodiment of the present invention.
Figure 5 - is the cross-sectional view of the tank related to another embodiment of the present invention. Figure 6 - is the schematic view of the tank related to another embodiment of the present invention.
Figure 7 - is the schematic view of the tank related to yet another embodiment of the present invention.
The elements illustrated in the figures are numbered as follows: 1. Dishwasher
2. Body
3. Heat pump
4. First heat exchanger
5. Second heat exchanger 6. Compressor
7. Tank 8. Inlet port
9. Outlet port
10. Block
11. Pump The dishwasher (1) comprises a body (2); a heat pump (3) that is disposed inside the body (2), that provides the heating of the water to be used in the washing step and that has a first heat exchanger (4), a second heat exchanger (5) transferring the heat received from the first heat exchanger (4) to the wash water and a compressor (6) fluidly connected to the first heat exchanger (4) and the second heat exchanger (5), realizing the refrigerant cycle, and a tank (7) wherein the first heat exchanger (4) or the second heat exchanger (5) is placed.
By placing the first heat exchanger (4) or the second heat exchanger (5) into a tank (7) containing water, a heat transfer with the water inside the tank (7) is provided. By transferring heat to the water, the water is enabled to be heated, and in the case heat is drawn from the water, the effectiveness of the heat pump (3) is improved. For example, when the wash water is filled into the tank (7) wherein the second heat exchanger (5) is disposed, the wash water is heated or when the mains water is filled into the tank (7) wherein the first heat exchanger (7) is disposed, heat is drawn from the mains water.
In the dishwasher (1) of the present invention, the tank (7) is placed into the body (2) so that the base thereof is inclined with respect to the floor plane. In the dishwashers (1), the heat pump (3) is preferably located under the tub (not shown in the figures) wherein the washing process is carried out, among water pipes, pumps and water receptacles. With the inclined configuration of the tank (7) base, water is prevented from accumulating in the tank (7) after the washing process, and the water remaining inside the tank (7) at the end of the washing or drying program is enabled to be almost completely discharged.
In another embodiment of the present invention, the dishwasher (1) comprises a block (10) that is disposed under the tank (7) and that enables the base of the tank (7) to be inclined with respect to the floor. By means of the block (10), the tank (7) is raised from its bottom side, thus the base thereof is enabled to be inclined with respect to the floor and thus the water is prevented from accumulating inside the tank (7).
In another embodiment of the present invention, the block (10) is produced integrated with the tank (7). In an embodiment of the present invention, the upper surface of the block (10) is curved. With the curved configuration of the upper surface of the block (10) integrated with the tank (7), the block (10) is enabled to occupy less space. Thus, while the water is prevented from accumulating inside the tank (7), the tank (7) volume can be used more efficiently. In another embodiment of the present invention, the tank (7) has an inlet port (8) that enables the water to enter the tank (7) and an outlet port (9) that enables the water to be discharged out of the tank (7), the inlet port (8) and the outlet port (9) being disposed at the two opposite surfaces of the tank (7). The tank (7) is placed into the body (2) so that the outlet port (9) is at a lower level than the inlet port (8). By providing the water intake into the tank (7) through the inlet port (8) and the water discharge from the tank (7) through the outlet port (9), a flow is provided inside the tank (7). The tank (7) is placed into the body (2) so that the base thereof is inclined with respect to the floor and the water flows from the inlet port (8) towards the outlet port (9). Thus, the water entering the tank (7) flows towards the outlet port (9) by drawing or giving off heat. Moreover, by means of the inclined configuration of the tank (7) base, the water inside the tank (7) is discharged through the outlet port (9) without accumulating on the base thereof.
In another embodiment of the present invention, the dishwasher (1) comprises a pump (11) that is connected to the outlet port (9), the suction level of which is at a lower level than the outlet port (9). In this embodiment, the water inside the tank (7) is discharged out of the tank (7) by means of a pump (11), the suction level of which is at a level lower than the outlet port (9). With the outlet port (9) of the tank (7) being at a higher level than the pump (11), the water remaining above the suction level of the pump (11) is prevented from entering the tank (7). In another embodiment of the present invention, the pump (11) is a circulation pump providing the circulation of the wash water. In the embodiment wherein the second heat exchanger (5) is provided in the tank (7), the wash water is circulated inside the tank (7) and the discharge of the wash water from the tank (7) is provided by means of the circulation pump (11). In this embodiment, an additional pump is not required for discharging the water inside the tank and by means of the circulation pump (11) providing the circulation of the wash water inside the tank (7) during the heating of the wash water, the water inside the tank (7) is enabled to be discharged.
In another embodiment of the present invention, the pump (11) is a discharge pump providing the discharge of the tank (7). In this embodiment, preferably the water inside the tank (7) is directly discharged without being sent to the sump of the dishwasher (1). Thus, the waste water containing copper oxides is enabled to be discharged without contacting the dishes.
In the dishwasher (1) of the present invention, the water is prevented from accumulating in the tank (7) situated at the bottom side of the dishwasher (1), the base of the tank (7) is configured so as to be inclined and the tank (7) is enabled to be discharged by means of the pump (11).

Claims

1- A dishwasher (1) comprising a body (2); a heat pump (3) that is disposed inside the body (2), that provides the heating of the water to be used in the washing step and that has a first heat exchanger (4), a second heat exchanger (5) transferring the heat received from the first heat exchanger (4) to the wash water and a compressor (6) fluidly connected to the first heat exchanger (4) and the second heat exchanger (5), realizing the refrigerant cycle, and a tank (7) wherein the first heat exchanger (4) or the second heat exchanger (5) is placed, characterized by the tank (7) that is placed into the body (2) so that the base thereof is inclined with respect to the floor plane. 2- A dishwasher (1) as in Claim 1, characterized by the block (10) that is disposed under the tank (7) and that enables the base of the tank (7) to be inclined with respect to the floor.
3- A dishwasher (1) as in Claim 2, characterized by the block (10) that is produced as integrated with the tank (7). 4- A dishwasher (1) as in Claim 3, characterized by the block (10), the upper surface of which is curved.
5- A dishwasher (1) as in any one of the above claims, characterized by an inlet port (8) that enables the water to enter the tank (7) and an outlet port (9) that enables the water to be discharged out of the tank (7), the inlet port (8) and the outlet port (9) being disposed at the two opposite surfaces of the tank (7), and by the tank (7) that is disposed into the body (2) so that the outlet port (9) is at a lower level than the inlet port (8).
6- A dishwasher (1) as in Claim 5, characterized by a pump (11) that is connected to the outlet port (9), the suction level of which is at a lower level than the outlet port (9).
7- A dishwasher (1) as in Claim 6, characterized by the pump (11) that is a circulation pump providing the circulation of the wash water.
8- A dishwasher (1) as in Claim 6, characterized by the pump (11) that is a discharge pump providing the discharge of the tank (7).
PCT/TR2015/050204 2014-12-30 2015-11-26 A heat pump dishwasher Ceased WO2016108789A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/536,598 US20170354314A1 (en) 2014-12-30 2015-11-26 A heat pump dishwasher
EP15817625.5A EP3240465A1 (en) 2014-12-30 2015-11-26 A heat pump dishwasher

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2014/16168 2014-12-30
TR201416168 2014-12-30

Publications (1)

Publication Number Publication Date
WO2016108789A1 true WO2016108789A1 (en) 2016-07-07

Family

ID=55066750

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2015/050204 Ceased WO2016108789A1 (en) 2014-12-30 2015-11-26 A heat pump dishwasher

Country Status (3)

Country Link
US (1) US20170354314A1 (en)
EP (1) EP3240465A1 (en)
WO (1) WO2016108789A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0819498A (en) 1994-07-08 1996-01-23 Hoshizaki Electric Co Ltd Heat exchanger for dish washing machine
JPH08150108A (en) * 1994-11-30 1996-06-11 Sanyo Electric Co Ltd Exhaust heat recovery device of dish washer
EP2662013A1 (en) * 2012-05-07 2013-11-13 ELECTROLUX PROFESSIONAL S.p.A. A dishwashing machine with a heat-pump drying device and associated method
KR101337796B1 (en) 2013-07-16 2013-12-06 송영일 Dish washer to available heat recovery

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699692B1 (en) * 2010-02-15 2013-09-30 V Zug Ag Dishwasher with several water tanks.
CN203234707U (en) * 2013-02-05 2013-10-16 傳宇宙 Full-intelligent ultrasonic dish-washing machine
WO2014127488A1 (en) * 2013-02-25 2014-08-28 Novothermic Technologies Inc. Method and device for transferring heat
CN105392937A (en) * 2013-06-11 2016-03-09 伊莱克斯家用电器股份公司 Washing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0819498A (en) 1994-07-08 1996-01-23 Hoshizaki Electric Co Ltd Heat exchanger for dish washing machine
JPH08150108A (en) * 1994-11-30 1996-06-11 Sanyo Electric Co Ltd Exhaust heat recovery device of dish washer
EP2662013A1 (en) * 2012-05-07 2013-11-13 ELECTROLUX PROFESSIONAL S.p.A. A dishwashing machine with a heat-pump drying device and associated method
KR101337796B1 (en) 2013-07-16 2013-12-06 송영일 Dish washer to available heat recovery

Also Published As

Publication number Publication date
US20170354314A1 (en) 2017-12-14
EP3240465A1 (en) 2017-11-08

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