EP0544214A1 - Sammelvorrichtung zur Anwendung in einem Kältemittelkreislauf - Google Patents

Sammelvorrichtung zur Anwendung in einem Kältemittelkreislauf Download PDF

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Publication number
EP0544214A1
EP0544214A1 EP92119958A EP92119958A EP0544214A1 EP 0544214 A1 EP0544214 A1 EP 0544214A1 EP 92119958 A EP92119958 A EP 92119958A EP 92119958 A EP92119958 A EP 92119958A EP 0544214 A1 EP0544214 A1 EP 0544214A1
Authority
EP
European Patent Office
Prior art keywords
hollow
refrigerant
cylindrical body
depth
inner diameter
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Withdrawn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
EP92119958A
Other languages
English (en)
French (fr)
Inventor
Yasuo c/o Sanden Corporation Yoshii
Toshiyuki C/O Sanden Corporation Kawai
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.)
Sanden Corp
Original Assignee
Sanden Corp
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
Priority claimed from JP9749191U external-priority patent/JPH0497265U/ja
Application filed by Sanden Corp filed Critical Sanden Corp
Publication of EP0544214A1 publication Critical patent/EP0544214A1/de
Withdrawn legal-status Critical Current

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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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Definitions

  • the present invention relates to a refrigerant circuit, and more particular, to an accumulating device for use in the refrigerant circuit.
  • a refrigerant circuit is generally provided with an accumulating device, such as a receiver-dryer disposed between a condenser and an expansion device each of which forms a part of the refrigerant circuit.
  • an accumulating device such as a receiver-dryer disposed between a condenser and an expansion device each of which forms a part of the refrigerant circuit.
  • FIG. 1 illustrates an overall construction of one prior art accumulating device, such as a receiver-dryer for use in a refrigerant circuit.
  • receiver-dryer 10 includes cylindrical casing 11 and header 12 which is fixedly connected to an upper opening end of cylindrical casing 11 by welding.
  • Bottom plate 115a is fixedly connected to a lower opening end of cylindrical casing 11 also by welding.
  • Header 12 comprises a cup-shaped cover plate 121 having a central opening 121a, fluid inlet port 122 and fluid outlet port 123 these which are fixedly connected to the central opening 121a.
  • An inner hollow space of receiver-dryer 10 is divided into first, second and third chambers 113, 114 and 115.
  • Second chamber 114 is formed between partition plates 116a and 116b which respectively separate second chamber 114 from first chamber 113 and third chamber 115 and oppose at a regular interval.
  • Filter members 117a and 117b are set on the inside of partition plates 116a and 116b.
  • An inner hollow space formed between filter members 117a and 117b is filled with dehydrant 118.
  • Bottom plate 115a includes a flat portion 115b formed at a central region thereof.
  • Third chamber 115 communicates with fluid outlet port 123 through an axially extending cylindrical tube 13 which penetrates the inside of cylindrical body 11 upward and downward. A lower opening end 131 of cylindrical tube 13 is immersed in the liquefied refrigerant accumulated at a bottom portion of third chamber 115.
  • Lower opening end 131 of tube 13 is adjacent to an inner surface of flat portion 115b of bottom plate 115a.
  • a sight glass 124 is fixedly disposed at the top end of header 12 in order to be able to observe an accumulating condition of receiver-dryer 10.
  • the refrigerant liquefied by a condenser which forms a part of the refrigerant circuit is led into first chamber 113 through fluid inlet port 122, and is continuously led into second and third chambers 114 and 115.
  • a condenser not shown
  • second chamber 114 When the liquefied refrigerant passes through second chamber 114, filtration and dehydration are carried out by means of filter members 117a and 117b, and dehydrant 118.
  • the liquefied refrigerant led into third chamber 115 accumulates at the bottom portion of third chamber 115.
  • the liquefied refrigerant accumulating at the bottom portion of third chamber 115 is sucked into tube 13 through lower opening 131 of tube 13, and flows to fluid outlet port 123, and then flows out to an expansion device which forms a part of the refrigerant circuit.
  • bottom plate 115a is formed flatly and the diameter of bottom 115a almost equals the inside diameter of cylindrical casing 11, it is difficult to accumulate the liquefied refrigerant to the height of opening 131 when the rotation of the compressor reduces and the refrigerant filled within the refrigerant circuit is a small quantity.
  • opening 131 absorbs the liquefied refrigerant near on the surface of liquefied refrigerant accumulating, the opening also absorbs the gas together with the liquefied refrigerant. Therefore, the refrigerant ability of the air conditioning apparatus reduces.
  • opening 131 absorbs the refrigerant mixed liquid and gas.
  • a tube member penetrates upward and downward within the cylindrical body, and communicates an inner hollow space of the cylindrical body with the fluid outlet port.
  • a hollow projects downwardly from the bottom of the cylindrical body and has a predetermined inner diameter and depth thereof.
  • Figure 1 is a longitudinally sectional view of a receiver-dryer in accordance with one prior art embodiment.
  • Figure 2 is a longitudinally sectional view of a receiver-dryer in accordance with a first embodiment of this invention.
  • Figure 3 is a graph showing a relationship between the longitudinally sectional area of a hollow difference and quantity of the refrigerant charged within the refrigerant circuit difference in accordance with the receiver-dryer shown in Figure 1.
  • Figure 4 is an enlarged partial longitudinally sectional view of the lower part of a receiver-dryer in accordance with a second embodiment of this invention.
  • Figure 5 is an enlarged partial longitudinally sectional view of the lower part of a receiver-dryer in accordance with a third embodiment of this invention.
  • the receiver-dryer 10 includes cylindrical body 11 with an upper opening, and header 12 which is disposed and welded on the upper opening.
  • Header 12 comprises a cover plate 121 having a central opening, and fluid inlet port 122 and fluid outlet port 123 fixed on the central opening.
  • the inside of cylindrical body 11 is separated into first, second and third chambers 113, 114 and 115 from a topside thereof.
  • Second chamber 114 is formed between partition plates 116a and 116b which respectively separates second chamber 114 from first chamber 113 and third chamber 115 and oppose at regular interval.
  • Filter members 117a and 117b to eliminate the dust from the liquefied refrigerant are respectively set at the inside of partition plates 116a and 116b.
  • Bottom plate 115a of third chamber 115 is formed flatly, and the diameter of bottom plate 115a almost equals the inner diameter of cylindrical body 11.
  • Bottom plate 115a forms a hollow 14 projecting downward from the portion of bottom plate 115a.
  • Side wall 141 of hollow 14 is formed vertically, and the bottom 142 of hollow 14 is of curved shape.
  • Hollow 14 has a predetermined inner diameter I and depth D.
  • An inner diameter I indicates the distance between opposite side walls 141 and 141.
  • the depth D indicates the distance between opening 143 and bottom 142.
  • the inner diameter I is determined far shorter than the inner diameter of cylindrical body 11.
  • the inside of third chamber 115 communicates with fluid outlet port 123 through cylindrical tube 13 which penetrates the inside of cylindrical body 11 upward and downward.
  • An opening 131 formed at the end of tube 13 and to absorb liquefied refrigerant accumulating within hollow 14 is disposed near above bottom 142.
  • sight glass 124 to see through the inside of tube 13 is set on the top of header 12.
  • receiver-dryer 10 the liquefied refrigerant absorbed through fluid inlet port 122 into first chamber 113 is led into second chamber 114.
  • the dust in the liquefied refrigerant within second chamber 114 is eliminated by filter members 117a, 117b and the moisture by dehydrant 118, and then the liquefied refrigerant is led into third chamber 115 and accumulates within hollow 14.
  • the liquefied refrigerant accumulating within hollow 14 is absorbed from opening 131 into the inside of tube 13 and is led into fluid outlet port 123, and then is discharged toward an expansion device which forms a part of the automotive air conditioning system.
  • the liquefied refrigerant led into third chamber 115 rapidly accumulates within hollow 14 and the level of the liquefied refrigerant also increases rapidly.
  • opening 131 is disposed near above bottom 142, opening 131 easily sinks in the liquefied refrigerant which rapidly accumulates within hollow 14. Therefore, the above fixed level of the liquefied refrigerant accumulating within hollow 14 is usually kept, and opening 131 is prevented from absorbing gas together with liquefied refrigerant.
  • opening 131 is usually sinking in the liquefied refrigerant accumulating within hollow 14 and the side wall 141 covers the circumference of lower part of suction tube 13 and the most of the liquefied refrigerant falling from second chamber 114 in a condition of a drop reaches on the surface of the liquefied refrigerant accumulating within hollow 14 by flowing on bottom 115a and side wall 141, the liquefied refrigerant which falls on the surface of the liquefied refrigerant accumulating within hollow 14 from second chamber 114 in a condition of a drop is difficult to form the wave and the bubble on the surface of the liquefied refrigerant. Therefore, opening 131 is prevented from absorbing the refrigerant mixed liquid and gas.
  • the inner diameter I is determined to equal the depth D or to be shorter than the depth D from the above effect.
  • the inner diameter of cylindrical body 11 or receiver-dryer 10 for use in an automotive air conditioning system is generally determined at 45 mm - 120 mm. It is desirable that inner diameter I is determined to equal the depth D or to be smaller than the depth D, and that inner diameter I is determined at 15mm - 30mm and depth D is determined at 20mm - 30mm. In such a condition, it is difficult for the liquefied refrigerant to be mixed liquid and gas. Therefore, hollow 14 prevents the liquefied refrigerant mixed liquid and gas from reducing the refrigerant ability of an automotive air conditioning system.
  • Figure 3 is a graph showing a relationship between the longitudinally sectional area of a hollow 14 difference and the quantity of refrigerant filled within refrigerant circuit difference in accordance with this invention. Data illustrated on a graph is an effect which the inventors of this invention got by observing a receiver-dryer shown in Figure 4.
  • opening 13 is liable to also absorb the gas together with the liquefied refrigerant.
  • the worker when the worker charges refrigerant within the refrigerant circuit seeing the condition of liquefied refrigerant within tube 13 from sight glass 124, the worker concludes that the quantity of refrigerant charged within the refrigerant circuit is deficient, and is liable to charge excessive quantity of the refrigerant to the height in which opening 131 doesn't absorb the refrigerant mixed liquid and gas caused by the waves and the bubbles.
  • the waves and the bubbles are strongly formed near on the surface of liquefied refrigerant accumulating. Therefore, the quantity of refrigerant which the worker charges within the refrigerant circuit increases more than prior quantity of the refrigerant (about 495 g), and the reduction of quantity of the refrigerant charged within the refrigerant circuit isn't achieved.
  • FIG 4 a hollow of a receiver-dryer in accordance with a second embodiment of this invention is shown.
  • the same construction is accorded like numerals as shown with respect to Figure 2 and the description of some of identical elements is substantially omitted.
  • Side wall 141 is formed vertically and bottom 142 is formed flatly.
  • the inner diameter I indicates the distance between opposite side walls 141 and 141, the depth D indicates the distance between opening 143 and bottom 142.
  • the above shape of hollow 14 considers the properties of the industrial process and utility.
  • FIG. 5 a hollow of a receiver-dryer in accordance with a third embodiment of this invention is shown.
  • the same construction is accorded like numerals as shown with respect to Figure 2 and the description of some of identical elements is substantially omitted.
  • the side wall 141 is formed the curved shape inwardly, bottom 142 is also formed the curved shape.
  • the inner diameter I indicates the distance between the opposite side walls 141 and 141 at a position which is as high as the height disposing opening 131.
  • the depth D indicates the distance between opening 143 and bottom 142.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP92119958A 1991-11-27 1992-11-24 Sammelvorrichtung zur Anwendung in einem Kältemittelkreislauf Withdrawn EP0544214A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9749191U JPH0497265U (de) 1990-11-30 1991-11-27
JP97491/91U 1991-11-27

Publications (1)

Publication Number Publication Date
EP0544214A1 true EP0544214A1 (de) 1993-06-02

Family

ID=14193747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119958A Withdrawn EP0544214A1 (de) 1991-11-27 1992-11-24 Sammelvorrichtung zur Anwendung in einem Kältemittelkreislauf

Country Status (1)

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EP (1) EP0544214A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003020180A1 (de) 2001-08-20 2003-03-13 Biomet Merck Gmbh Künstliche hüftgelenkspfanne
CN103557649A (zh) * 2013-11-12 2014-02-05 合肥美菱股份有限公司 一种冰箱过滤器
CN105485967A (zh) * 2014-09-19 2016-04-13 广东美芝制冷设备有限公司 空调器及其压缩机组件
CN105485976A (zh) * 2014-09-19 2016-04-13 广东美芝制冷设备有限公司 空调器、制冷系统及其压缩机组件

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835114A (en) * 1956-03-23 1958-05-20 Philco Corp Refrigeration apparatus
DE1230445B (de) * 1964-12-05 1966-12-15 Hansa Metallwerke Ag Fluessigkeitssammelflasche fuer Kaelteanlagen
EP0104750A2 (de) * 1982-09-23 1984-04-04 Richard John Avery, Jr. Kältemittelsammler und Verfahren und Vorrichtung zum Einfüllen von Kältemittel in einem Kompressionskältesystem
DE3543206A1 (de) * 1985-12-06 1987-06-11 Bellino Emaillier Stanz Metal Trocknerbehaelter fuer klima- und/oder kuehlanlagen
US4920766A (en) * 1988-09-05 1990-05-01 Showa Aluminum Corporation Receiver for refrigerant apparatus
DE3936251A1 (de) * 1988-10-31 1990-05-03 Showa Aluminum Corp Kaeltemittelbehaelter
US5038582A (en) * 1989-03-13 1991-08-13 Calsonic Corporation Liquid receiver

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835114A (en) * 1956-03-23 1958-05-20 Philco Corp Refrigeration apparatus
DE1230445B (de) * 1964-12-05 1966-12-15 Hansa Metallwerke Ag Fluessigkeitssammelflasche fuer Kaelteanlagen
EP0104750A2 (de) * 1982-09-23 1984-04-04 Richard John Avery, Jr. Kältemittelsammler und Verfahren und Vorrichtung zum Einfüllen von Kältemittel in einem Kompressionskältesystem
DE3543206A1 (de) * 1985-12-06 1987-06-11 Bellino Emaillier Stanz Metal Trocknerbehaelter fuer klima- und/oder kuehlanlagen
US4920766A (en) * 1988-09-05 1990-05-01 Showa Aluminum Corporation Receiver for refrigerant apparatus
DE3936251A1 (de) * 1988-10-31 1990-05-03 Showa Aluminum Corp Kaeltemittelbehaelter
US5038582A (en) * 1989-03-13 1991-08-13 Calsonic Corporation Liquid receiver

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003020180A1 (de) 2001-08-20 2003-03-13 Biomet Merck Gmbh Künstliche hüftgelenkspfanne
CN103557649A (zh) * 2013-11-12 2014-02-05 合肥美菱股份有限公司 一种冰箱过滤器
CN103557649B (zh) * 2013-11-12 2016-03-30 合肥美菱股份有限公司 一种冰箱过滤器
CN105485967A (zh) * 2014-09-19 2016-04-13 广东美芝制冷设备有限公司 空调器及其压缩机组件
CN105485976A (zh) * 2014-09-19 2016-04-13 广东美芝制冷设备有限公司 空调器、制冷系统及其压缩机组件
CN105485976B (zh) * 2014-09-19 2017-12-22 广东美芝制冷设备有限公司 空调器、制冷系统及其压缩机组件
CN105485967B (zh) * 2014-09-19 2018-04-20 广东美芝制冷设备有限公司 空调器及其压缩机组件

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