EP4388258A1 - A refrigerator comprising an additional tube - Google Patents

A refrigerator comprising an additional tube

Info

Publication number
EP4388258A1
EP4388258A1 EP22858865.3A EP22858865A EP4388258A1 EP 4388258 A1 EP4388258 A1 EP 4388258A1 EP 22858865 A EP22858865 A EP 22858865A EP 4388258 A1 EP4388258 A1 EP 4388258A1
Authority
EP
European Patent Office
Prior art keywords
tube
refrigerator
compressor
evaporator
refrigerant
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.)
Withdrawn
Application number
EP22858865.3A
Other languages
German (de)
French (fr)
Other versions
EP4388258A4 (en
Inventor
Fatih TURKER
Sarper Marasli
Kerim YILDIRIM
Sehmuz Ali SUBAY
Semih GUREL
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 claimed from PCT/TR2022/050712 external-priority patent/WO2023022681A1/en
Publication of EP4388258A1 publication Critical patent/EP4388258A1/en
Publication of EP4388258A4 publication Critical patent/EP4388258A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/001—Charging refrigerant to a cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements

Definitions

  • the present invention relates to a refrigerator comprising an additional tube wherein the refrigerant is charged to the compressor used in the refrigerator refrigeration cycle.
  • the refrigerant gas In compressors, the refrigerant gas is charged from the lower casing. The charged gas is compressed by the motor and piston and sent to the condenser via an outlet tube. In the refrigerator refrigeration cycle, the refrigerant gas completes its cycle through the evaporator and returns to the compressor at a lower pressure through the evaporator tube and the return tube. Thus, the refrigeration cycle continues.
  • there are three tubes on the compressor namely return, outlet and service tubes.
  • the refrigerant gas circulating in the compressor is charged to the compressor body from the lower casing via a service tube.
  • the return pipe is the component where the gas returns to the casing in the refrigeration cycle. Said three tubes are joined, by centering, to the holes bored on the compressor lower casing.
  • JP2014009647 a tube structure is disclosed, which enables the refrigerant to be charged to the compressor.
  • the aim of the present invention is the realization of a refrigerator comprising an additional tube for charging the refrigerant to the compressor, wherein ease of production and cost advantage are provided.
  • the refrigerator of the present invention comprises a condenser; an evaporator; a compressor having a lower casing, an upper casing disposed onto the lower casing and only a return tube and an outlet tube provided on the lower casing; and an evaporator tube which provides the connection between the return tube of the compressor and the evaporator.
  • the compressor outlet tube is the tube through which the refrigerant gas compressed by the motor and the piston is send from the compressor to the condenser.
  • the return tube is the tube through which the gas, which completes its refrigerant cycle in the refrigerator, returns to the compressor from the evaporator.
  • the refrigerator of the present invention comprises an additional tube which is provided on the evaporator tube.
  • the refrigerant is charged into the compressor through the additional tube, and then the additional tube is cut, welded and closed.
  • the refrigerant is charged. Consequently, by eliminating refrigerant leaks, the refrigerator is enabled to perform the cooling process more efficiently.
  • the diameters of the additional tube and the evaporator tube are equal to each other.
  • the diameters of the additional tube and the evaporator tube can be different from each other.
  • the additional tube is parallel to and integrated with the evaporator tube.
  • a refrigerator comprising a compressor wherein the refrigerant leaks are prevented and the refrigerant gas is easily charged.
  • Figure 1 - is the perspective view of the refrigerator of the present invention.
  • Figure 2 - is the front view of a compressor comprising an external service tube at the lower casing in state of the art refrigerators.
  • Figure 3 - is the view of the compressor connected to the evaporator via the evaporator tube in the refrigerator of the present invention.
  • Figure 4 - is another view of the compressor connected to the evaporator via the evaporator tube in the refrigerator of the present invention.
  • the refrigerator (1) comprises a condenser; an evaporator and a compressor (3) having an upper casing (4) and a lower casing (5), where the refrigerant cycle is performed; an outlet tube (7) which is provided on the lower casing (5), which is used for connecting the compressor (3) to the condenser and which provides the delivery of the compressed refrigerant to the condenser; a return tube (6) which enables the refrigerant completing its refrigerant cycle to return to the compressor (3) via the evaporator; an evaporator tube (2) which is connected to the return tube (6).
  • the refrigerator (1) of the present invention comprises an additional tube (8) which is provided on the evaporator tube (2) and which enables the refrigerant gas to be charged to the compressor (3).
  • the refrigerant gas is charged to the compressor (3), which is one of the components of the refrigerant cycle, through the additional tube (8) which is provided on the evaporator tube (2).
  • the refrigerator (1) of the present invention comprises a compressor (3) having only the return tube (6) and the outlet tube (7) on the lower casing (5) thereof.
  • the refrigerator (1) of the present invention comprises the additional tube (8) the end of which is blunted and closed after the refrigerant is charged.
  • the refrigerant gas is enabled to be circulated in closed circuit during the refrigerant cycle.
  • the refrigerator (1) comprises the additional tube (8) which is integrated with the evaporator tube (2).
  • the additional tube (8) which is integrated with the evaporator tube (2).
  • the refrigerator (1) comprises the additional tube (8) which is provided on the evaporator tube (2) so as to be parallel to the evaporator tube (2).
  • the charging of the refrigerant gas is facilitated.
  • the refrigerator (1) comprises the additional tube (8) with a diameter equal to the diameter of the evaporator tube (2).
  • a refrigerator (1) is realized, with decreased production time and improved production cost, wherein the refrigerant gas leaks are prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The present invention relates to a refrigerator (1) comprising a condenser; an evaporator and a compressor (3) having an upper casing (4) and a lower casing (5), where the refrigerant cycle is performed; an outlet tube (7) which is provided on the lower casing (5), which is used for connecting the compressor (3) to the condenser and which provides the delivery of the compressed refrigerant to the condenser; a return tube (6) which enables the refrigerant completing its refrigerant cycle to return to the compressor (3) via the evaporator; an evaporator tube (2) which is connected to the return tube (6).

Description

A REFRIGERATOR COMPRISING AN ADDITIONAL TUBE
The present invention relates to a refrigerator comprising an additional tube wherein the refrigerant is charged to the compressor used in the refrigerator refrigeration cycle.
In compressors, the refrigerant gas is charged from the lower casing. The charged gas is compressed by the motor and piston and sent to the condenser via an outlet tube. In the refrigerator refrigeration cycle, the refrigerant gas completes its cycle through the evaporator and returns to the compressor at a lower pressure through the evaporator tube and the return tube. Thus, the refrigeration cycle continues. In the state of the art, there are three tubes on the compressor, namely return, outlet and service tubes. The refrigerant gas circulating in the compressor is charged to the compressor body from the lower casing via a service tube. The return pipe is the component where the gas returns to the casing in the refrigeration cycle. Said three tubes are joined, by centering, to the holes bored on the compressor lower casing. Centering and boring holes on the tubes and the casing increases refrigerator production costs and production cycle times. Moreover, processes such as centering the tubes to the casing, welding an additional tube to the compressor service tube during the production of refrigerators where compressors are used, also cause the risk of refrigerant leakage, which results in cooling problems. After the refrigerant is pumped from the service tube, the tube end is cut, welded, blunted and closed. However, adding a third tube to the lower casing increases both production time and cost.
In the state of the art Japanese Patent Document No. JP2014009647, a tube structure is disclosed, which enables the refrigerant to be charged to the compressor.
The aim of the present invention is the realization of a refrigerator comprising an additional tube for charging the refrigerant to the compressor, wherein ease of production and cost advantage are provided.
The refrigerator of the present invention comprises a condenser; an evaporator; a compressor having a lower casing, an upper casing disposed onto the lower casing and only a return tube and an outlet tube provided on the lower casing; and an evaporator tube which provides the connection between the return tube of the compressor and the evaporator. The compressor outlet tube is the tube through which the refrigerant gas compressed by the motor and the piston is send from the compressor to the condenser. The return tube is the tube through which the gas, which completes its refrigerant cycle in the refrigerator, returns to the compressor from the evaporator.
The refrigerator of the present invention comprises an additional tube which is provided on the evaporator tube. The refrigerant is charged into the compressor through the additional tube, and then the additional tube is cut, welded and closed. Thus, without opening a third tube hole on the lower casing of the compressor and using a service tube, the refrigerant is charged. Consequently, by eliminating refrigerant leaks, the refrigerator is enabled to perform the cooling process more efficiently.
In an embodiment of the present invention, the diameters of the additional tube and the evaporator tube are equal to each other.
In another embodiment of the present invention, the diameters of the additional tube and the evaporator tube can be different from each other.
In an embodiment of the present invention, the additional tube is parallel to and integrated with the evaporator tube.
By means of the present invention, a refrigerator is realized, comprising a compressor wherein the refrigerant leaks are prevented and the refrigerant gas is easily charged.
The model embodiments related to the refrigerator realized in order to attain the aim of the present invention are shown in the attached figures, where:
Figure 1 - is the perspective view of the refrigerator of the present invention.
Figure 2 - is the front view of a compressor comprising an external service tube at the lower casing in state of the art refrigerators.
Figure 3 - is the view of the compressor connected to the evaporator via the evaporator tube in the refrigerator of the present invention. Figure 4 - is another view of the compressor connected to the evaporator via the evaporator tube in the refrigerator of the present invention.
The elements illustrated in the figures are numbered as follows:
1. Refrigerator
2. Evaporator tube
3. Compressor
4. Upper casing
5. Lower casing
6. Return tube
7. Outlet tube
8. Additional tube
The refrigerator (1) comprises a condenser; an evaporator and a compressor (3) having an upper casing (4) and a lower casing (5), where the refrigerant cycle is performed; an outlet tube (7) which is provided on the lower casing (5), which is used for connecting the compressor (3) to the condenser and which provides the delivery of the compressed refrigerant to the condenser; a return tube (6) which enables the refrigerant completing its refrigerant cycle to return to the compressor (3) via the evaporator; an evaporator tube (2) which is connected to the return tube (6).
The refrigerator (1) of the present invention comprises an additional tube (8) which is provided on the evaporator tube (2) and which enables the refrigerant gas to be charged to the compressor (3).
In the refrigerator (1) of the present invention, the refrigerant gas is charged to the compressor (3), which is one of the components of the refrigerant cycle, through the additional tube (8) which is provided on the evaporator tube (2). Thus, the need for using an additional service tube on the lower casing (5) of the compressor (3) is eliminated. The refrigerator (1) of the present invention comprises a compressor (3) having only the return tube (6) and the outlet tube (7) on the lower casing (5) thereof.
The refrigerator (1) of the present invention comprises the additional tube (8) the end of which is blunted and closed after the refrigerant is charged. Thus, while the refrigerator (1) is operated, the refrigerant gas is enabled to be circulated in closed circuit during the refrigerant cycle.
In an embodiment of the present invention, the refrigerator (1) comprises the additional tube (8) which is integrated with the evaporator tube (2). Thus, ease of assembly is provided, and refrigerant gas leaks between the evaporator tube (2) and the additional tube (8) are prevented.
In an embodiment of the present invention, the refrigerator (1) comprises the additional tube (8) which is provided on the evaporator tube (2) so as to be parallel to the evaporator tube (2). Thus, the charging of the refrigerant gas is facilitated.
In an embodiment of the present invention, the refrigerator (1) comprises the additional tube (8) with a diameter equal to the diameter of the evaporator tube (2).
By means of the present invention, a refrigerator (1) is realized, with decreased production time and improved production cost, wherein the refrigerant gas leaks are prevented.

Claims

1. A refrigerator (1) comprising a condenser; an evaporator and a compressor (3) having an upper casing (4) and a lower casing (5), where the refrigerant cycle is performed; an outlet tube (7) which is provided on the lower casing (5), which is used for connecting the compressor (3) to the condenser and which provides the delivery of the compressed refrigerant to the condenser; a return tube (6) which enables the refrigerant completing its refrigerant cycle to return to the compressor (3) via the evaporator; an evaporator tube (2) which is connected to the return tube (6), characterized by an additional tube (8) which is provided on the evaporator tube (2) and which enables the refrigerant gas to be charged to the compressor (3).
2. A refrigerator (1) as in Claim 1, characterized by a compressor (3) having only the return tube (6) and the outlet tube (7) on the lower casing (5) thereof.
3. A refrigerator (1) as in Claim 1 or 2, characterized by the additional tube (8) the end of which is blunted and closed after the refrigerant is charged.
4. A refrigerator (1) as in Claim 3, characterized by the additional tube (8) which is integrated with the evaporator tube (2).
5. A refrigerator (1) as in any one of the Claims 1 to 4, characterized by the additional tube (8) which is provided on the evaporator tube (2) so as to be parallel to the evaporator tube (2).
6. A refrigerator (1) as in any one of the Claims 1 to 5, characterized by the additional tube (8) with a diameter equal to the diameter of the evaporator tube (2).
5
EP22858865.3A 2021-08-19 2022-07-06 REFRIGERATOR INCLUDING AN EXTRA TUBE Withdrawn EP4388258A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR202113111 2021-08-19
PCT/TR2022/050712 WO2023022681A1 (en) 2021-08-19 2022-07-06 A refrigerator comprising an additional tube

Publications (2)

Publication Number Publication Date
EP4388258A1 true EP4388258A1 (en) 2024-06-26
EP4388258A4 EP4388258A4 (en) 2025-05-21

Family

ID=91270472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22858865.3A Withdrawn EP4388258A4 (en) 2021-08-19 2022-07-06 REFRIGERATOR INCLUDING AN EXTRA TUBE

Country Status (1)

Country Link
EP (1) EP4388258A4 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614400A (en) * 1950-01-06 1952-10-21 Meco Pilot Mfg Company Charging valve in refrigeration apparatus
US5396774A (en) * 1987-11-13 1995-03-14 Paul J. Hubbell, Jr. By-pass manifold valve for charging, repairing and/or testing refrigerant systems
JP2003240390A (en) * 2002-02-14 2003-08-27 Mitsubishi Electric Corp Refrigeration air conditioner and refrigerant charging method
WO2019198203A1 (en) * 2018-04-12 2019-10-17 三菱電機株式会社 Air conditioner

Also Published As

Publication number Publication date
EP4388258A4 (en) 2025-05-21

Similar Documents

Publication Publication Date Title
JP6023043B2 (en) Refrigerator cooling system and fluid compressor suction system
JP6943310B2 (en) Compressor
KR20080078584A (en) Internal heat exchanger of vehicle air conditioning unit
WO2020067195A1 (en) Multistage compression system
WO2019194126A1 (en) Compressor
KR20150069354A (en) Air conditioner system for vehicle
KR101212642B1 (en) Mechanism for controlling and operating compressor capacity and air conditioner having the same
EP4388258A1 (en) A refrigerator comprising an additional tube
WO2023022681A1 (en) A refrigerator comprising an additional tube
KR20150054268A (en) A scroll compressor and an air conditioner including the same
WO2023022682A1 (en) A compressor comprising an additional tube
KR101403432B1 (en) Cooling system of air conditioner for vehicle and its manufacturing method
CN210625023U (en) Air return assembly and refrigerator with the air return assembly
US20230288131A1 (en) Refrigerator and method for manufacturing the same
JP2005127655A (en) refrigerator
US10415558B2 (en) Discharge conduit connection for a compressor
KR200448511Y1 (en) Piping connection device for refrigeration and refrigeration compressor
KR20130083253A (en) Refrigerating cycle for reducing noise in refrigerator
WO2017174501A1 (en) A compressor wherein cylinder hole with different diameter is used
EP3147507A1 (en) Rotary compressor for a heat pump
EP4194695A1 (en) A hermetic compressor with improved vibration tube assembly
JP7162757B2 (en) Hermetic compressor, refrigeration cycle device, and method for manufacturing hermetic compressor
KR100782882B1 (en) Piping connection structure
KR101973033B1 (en) Connector for pipes
KR200183416Y1 (en) Structure for connecting evaporator of refrigerator

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240112

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20250423

RIC1 Information provided on ipc code assigned before grant

Ipc: F25B 41/40 20210101ALI20250415BHEP

Ipc: F25B 45/00 20060101ALI20250415BHEP

Ipc: F25D 29/00 20060101ALI20250415BHEP

Ipc: F25D 23/00 20060101AFI20250415BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20251114