WO2002001124A1 - A heat exchanger and a heat exchanger/expansion valve assembly - Google Patents
A heat exchanger and a heat exchanger/expansion valve assembly Download PDFInfo
- Publication number
- WO2002001124A1 WO2002001124A1 PCT/EP2000/005995 EP0005995W WO0201124A1 WO 2002001124 A1 WO2002001124 A1 WO 2002001124A1 EP 0005995 W EP0005995 W EP 0005995W WO 0201124 A1 WO0201124 A1 WO 0201124A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- compartment
- expansion valve
- channel
- valve
- Prior art date
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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/022—Evaporators with plate-like or laminated elements
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
- F25B41/335—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
- F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
- F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- 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
- F25B2500/18—Optimization, e.g. high integration of refrigeration components
Definitions
- the present invention relates to a heat exchanger for a heat exchanger/expansion valve assembly for evaporation of a fluid, and a heat exchanger/expansion valve assembly.
- the basic structure of a known heat exchanger used as an evaporator comprises an inlet for a refrigerant fluid and an outlet for superheated refrigerant vapour, and is provided with a plurality of inner and outer plates, placed or juxtaposed to one another to define a stack of plates, between which flow-trough chambers for the refrigerant, are defined.
- An expansion valve which has the function of regulating the inflow of the refrigerant fluid to maintain the system in a suitable equilibrium, is connected to the evaporator in the following way: the refrigerant exit of the valve is connected to the evaporator inlet, a temperature bulb communicating with the valve is clamped to the evaporator exit and a tube for refrigerant vapour forming an equalization channel is arranged between the valve and the evaporator exit.
- the expansion valve then has to be fitted with two O-rings and mounted on the tubes .
- the performance of the evaporator-valve assembly is influenced by such external factors as: i.e. valve position, connecting pipe length and diameter, pipe bends and so on.
- the presence of the external tube forming the equalization channel results in a bulky and cumbersome design.
- An object of the invention is to provide a heat exchanger for a heat exchanger/expansion valve assembly with a simplified and cost effective design.
- a further object of the invention is to provide a heat exchanger for a heat exchanger/expansion valve assembly which allows for a compact overall design of the system.
- figure 1 shows a schematic exploded view of a heat exchanger for a heat exchanger/expansion valve assembly according to a first embodiment of the present invention
- figure 2 shows a schematic exploded view of a heat exchanger according to a second embodiment of the present invention
- figure 3 shows a schematic exploded view of a heat exchanger according to a third embodiment of the present invention
- figure 4 shows a cross section view of a valve assembly according to the present invention.
- an expansion valve is globally indicated with the reference numeral 10, and is shown applied to a heat exchanger 11 for forming a heat exchanger/expansion valve assembly, according to a first embodiment of the invention.
- the heat exchanger 11 is provided with an inlet 12 for a refrigerant fluid and an outlet 13 for superheated refrigerant vapour and is composed of a plurality of plates 14 placed or juxtaposed to one another to define a plurality of flow-trough chambers.
- An expansion valve 10 used as shown in the section of figure 4, comprises a first compartment 15 and a second compartment 16, where said compartments 15 and 16 are separated by a diaphragm 17.
- a valve element 23, which can open or close a valve passage 33 is connected to the diaphragm 17.
- a spring 22 may act on the valve element 23.
- the expansion valve 10 is mounted directly on the heat exchanger 11 in such a way that a vapour equalization channel 18 inside the heat exchanger 11 is in fluid communication with the first compartment 15.
- a valve inlet 42 is in communication with the inlet 12 for the refrigerant fluid and a valve outlet 43 is in communication with the outlet 13 for the superheated refrigerant vapour.
- the valve 10 is connected to a connection pipe, or any similar means, in a front plate 34a of the heat exchanger 11.
- liquid refrigerant enters the valve inlet 42, expands in the valve and leaves the valve 10 as a fluid containing liquid and va- porized refrigerant.
- the fluid then passes through heat exchanger inlet 12 and enters the plate package of the heat exchanger 11.
- the vapourized refrigerant passes through an em- bossed channel 19 in the front plate 34a and the heat exchanger outlet 13, then enters a first compartment of the valve 10, which works as an equalization compartment, and immediately leaves the valve 10 via valve outlet 43, having relayed the pressure to one side of a diaphragm.
- the refrigerant vapour pressure controls the valve 10, although, as it will be explained later on, the valve 10 may be provided with a thermostatic bulb. Also, the diaphragm and a second compartment may form a thermostatic bulb inside the valve 10, which bulb is sensitive to the temperature of the refrigerant vapour.
- the embossed channel 19 also forms an equalization channel communicating with the first compartment of the valve 10.
- FIG 2 a second embodiment of the invention is shown in which the equalization channel is provided for by means of an embossed channel 29, in a front plate 34b, which allows only the passage of a sufficient quantity of vapour to relay the exit pressure of the refrigerant vapour to a first compartment of the valve 10.
- the refrigerant enters the valve 10 through inlet 42 and the heat exchanger through inlet 12, then the refrigerant vapour leaves the heat exchanger 11 through an outlet 13 for the superheated refrigerant vapour.
- the flow is caused only by changing pressure, and the first compartment of the valve 10 is closed in the sense that it has no exit port, like the first compartment 15 of the valve 10 shown in figure 4.
- valve assembly similar to the valve assembly of this embodiment is shown in a cross section in figure 4, in which the second compartment 16 of the valve 10 is shown in fluid commu- nication with an optional temperature sensing bulb 25 through a connecting tube 24.
- the diaphragm 17, which separates the first compartment 15 from the second compartment 16, is in a substantially vertical position when the valve 10 is mounted on the heat exchanger 11.
- valve 10 opens if the pressure inside the second compartment 16 increases due to an increased temperature in the bulb 25, forcing the valve element 23 to open the valve passage 33, while the valve 10 closes if the pressure inside the first compartment 15 increases because of an increased pressure relayed trough the equalization channel 18.
- the bulb 25 may, for instance, abut against a conduit connected to an outlet for superheated refrigerant vapour of the heat exchanger 11.
- a third embodiment of the present invention is shown in which an embossed channel 30 is pressed in one of the internal plates 35 and a plate 34c is provided on the front of the heat exchanger 11.
- the fluid flow is basically the same as in the embodiment of figure 2.
- a pipe arranged between two plates may, at least partly, form the equalization channel 18, as shown in figure 4.
- valve 10 may be fitted and sealed with O-rings and fixed on the heat exchanger 11 with two bolts.
- the inlet 12 for refrigerant fluid is arranged at the bottom of the heat exchanger. It is advantageous for the flow and evaporation of the refrigerant when the refrigerant flows upwards in the chambers of the heat exchanger. From the above description the characteristics of the expansion valve assembly for a heat exchanger of the present invention should be evident, and also evident are the advantages thereof.
- the main advantages of the present invention can be summarized as follows: reduced production and assembly costs, due to the fact that there is no need for an external copper tube for forming the equalization chan- nel, no need for a special attaching plate with threaded holes for the valve and no need for a number of brazed connections; the heat exchanger and the valve are adapted to each other resulting in a compact and ra- tional design, which also allows for a more reliable functioning of the valve; - the invention offers the possibility of mounting a valve on the heat exchanger with no need for special external parts. It will be understood that, although there have been described some preferred embodiments of the invention, the expansion valve assembly described may be embodied in other specific forms without departing from the essential characteristics thereof as claimed in the appended claims.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES00943917T ES2279760T3 (en) | 2000-06-28 | 2000-06-28 | HEAT EXCHANGER AND EXPANSION VALVE AND HEAT EXCHANGER ASSY. |
DE60034071T DE60034071T2 (en) | 2000-06-28 | 2000-06-28 | A HEAT EXCHANGER AND A HEAT EXCHANGE RELIEF VALVE ASSEMBLY |
EP00943917A EP1295072B1 (en) | 2000-06-28 | 2000-06-28 | A heat exchanger and a heat exchanger/expansion valve assembly |
AT00943917T ATE357636T1 (en) | 2000-06-28 | 2000-06-28 | A HEAT EXCHANGER AND A HEAT EXCHANGER RELIEF VALVE ASSEMBLY |
AU2000258208A AU2000258208A1 (en) | 2000-06-28 | 2000-06-28 | A heat exchanger and a heat exchanger/expansion valve assembly |
PCT/EP2000/005995 WO2002001124A1 (en) | 2000-06-28 | 2000-06-28 | A heat exchanger and a heat exchanger/expansion valve assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2000/005995 WO2002001124A1 (en) | 2000-06-28 | 2000-06-28 | A heat exchanger and a heat exchanger/expansion valve assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002001124A1 true WO2002001124A1 (en) | 2002-01-03 |
Family
ID=8164005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/005995 WO2002001124A1 (en) | 2000-06-28 | 2000-06-28 | A heat exchanger and a heat exchanger/expansion valve assembly |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1295072B1 (en) |
AT (1) | ATE357636T1 (en) |
AU (1) | AU2000258208A1 (en) |
DE (1) | DE60034071T2 (en) |
ES (1) | ES2279760T3 (en) |
WO (1) | WO2002001124A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2383888A (en) * | 2001-10-04 | 2003-07-09 | Ipr Holdings Ltd | Computer database based learning systems. |
FR2858397A1 (en) * | 2003-07-29 | 2005-02-04 | Valeo Climatisation | DEVICE FOR ADAPTING A DETENDER TO THE EVAPORATOR OF AN AIR CONDITIONING APPARATUS |
WO2010134869A1 (en) * | 2009-05-18 | 2010-11-25 | Alfa Laval Corporate Ab | A plate heat exchanger |
WO2010140954A1 (en) * | 2009-06-04 | 2010-12-09 | Alfa Laval Corporate Ab | A plate heat exchanger |
CN103253148A (en) * | 2012-02-15 | 2013-08-21 | 杭州三花研究院有限公司 | Battery cooling group, electric automobile air conditioner system and electric automobile |
WO2014125088A1 (en) * | 2013-02-14 | 2014-08-21 | Swep International Ab | Combined condensor and evaporator |
EP2565560A3 (en) * | 2011-08-31 | 2015-02-18 | Behr GmbH & Co. KG | Heat exchanger |
US10038751B2 (en) | 2013-03-15 | 2018-07-31 | Doro AB | Sensor system |
JP2020106247A (en) * | 2018-12-28 | 2020-07-09 | 株式会社鷺宮製作所 | Structure for fixing temperature type control valve to heat source |
DE102022202732A1 (en) | 2022-03-21 | 2023-09-21 | Mahle International Gmbh | Stacked disk heat exchanger for a thermal management module |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201900016244A1 (en) * | 2019-09-13 | 2021-03-13 | Denso Thermal Systems Spa | Plate heat exchanger equipped with refrigerant inlet manifold with calibrated orifice |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2536840A (en) * | 1948-03-04 | 1951-01-02 | Chester Jensen Company | Embossed plate heat exchanger |
US4114397A (en) * | 1975-11-21 | 1978-09-19 | Hitachi, Ltd. | Evaporator |
US4589265A (en) * | 1983-11-14 | 1986-05-20 | Diesel Kiki Company, Ltd. | Heat exchanger for an air conditioning system evaporator |
US4712384A (en) * | 1986-09-22 | 1987-12-15 | Sundstrand Corporation | Integrated evaporator and thermal expansion valve assembly |
US4809518A (en) * | 1986-09-24 | 1989-03-07 | Nihon Radiator Co., Ltd. | Laminate type evaporator with expansion valve |
EP0762072A2 (en) * | 1995-09-07 | 1997-03-12 | Modine Manufacturing Company | Heat exchanger with adapter |
DE19805285A1 (en) * | 1998-02-10 | 1999-08-12 | Behr Gmbh & Co | Evaporator unit for air-conditioning plant |
-
2000
- 2000-06-28 ES ES00943917T patent/ES2279760T3/en not_active Expired - Lifetime
- 2000-06-28 AU AU2000258208A patent/AU2000258208A1/en not_active Abandoned
- 2000-06-28 EP EP00943917A patent/EP1295072B1/en not_active Expired - Lifetime
- 2000-06-28 AT AT00943917T patent/ATE357636T1/en not_active IP Right Cessation
- 2000-06-28 WO PCT/EP2000/005995 patent/WO2002001124A1/en active IP Right Grant
- 2000-06-28 DE DE60034071T patent/DE60034071T2/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2536840A (en) * | 1948-03-04 | 1951-01-02 | Chester Jensen Company | Embossed plate heat exchanger |
US4114397A (en) * | 1975-11-21 | 1978-09-19 | Hitachi, Ltd. | Evaporator |
US4589265A (en) * | 1983-11-14 | 1986-05-20 | Diesel Kiki Company, Ltd. | Heat exchanger for an air conditioning system evaporator |
US4712384A (en) * | 1986-09-22 | 1987-12-15 | Sundstrand Corporation | Integrated evaporator and thermal expansion valve assembly |
US4809518A (en) * | 1986-09-24 | 1989-03-07 | Nihon Radiator Co., Ltd. | Laminate type evaporator with expansion valve |
EP0762072A2 (en) * | 1995-09-07 | 1997-03-12 | Modine Manufacturing Company | Heat exchanger with adapter |
DE19805285A1 (en) * | 1998-02-10 | 1999-08-12 | Behr Gmbh & Co | Evaporator unit for air-conditioning plant |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2383888A (en) * | 2001-10-04 | 2003-07-09 | Ipr Holdings Ltd | Computer database based learning systems. |
FR2858397A1 (en) * | 2003-07-29 | 2005-02-04 | Valeo Climatisation | DEVICE FOR ADAPTING A DETENDER TO THE EVAPORATOR OF AN AIR CONDITIONING APPARATUS |
WO2005012810A1 (en) * | 2003-07-29 | 2005-02-10 | Valeo Climatisation | Device for adapting a pressure reducing valve to the evaporator of an air-conditioning device |
WO2010134869A1 (en) * | 2009-05-18 | 2010-11-25 | Alfa Laval Corporate Ab | A plate heat exchanger |
CN102460055B (en) * | 2009-06-04 | 2015-09-09 | 阿尔法拉瓦尔股份有限公司 | Plate type heat exchanger |
WO2010140954A1 (en) * | 2009-06-04 | 2010-12-09 | Alfa Laval Corporate Ab | A plate heat exchanger |
CN102460055A (en) * | 2009-06-04 | 2012-05-16 | 阿尔法拉瓦尔股份有限公司 | A plate heat exchanger |
EP2565560B1 (en) | 2011-08-31 | 2019-04-17 | MAHLE Behr GmbH & Co. KG | System for a motor vehicle for heating and/or cooling |
EP2565560A3 (en) * | 2011-08-31 | 2015-02-18 | Behr GmbH & Co. KG | Heat exchanger |
US9121643B2 (en) | 2011-08-31 | 2015-09-01 | MAHLE Behr GmbH & Co. KG | Heat exchanger |
CN103253148A (en) * | 2012-02-15 | 2013-08-21 | 杭州三花研究院有限公司 | Battery cooling group, electric automobile air conditioner system and electric automobile |
WO2014125089A1 (en) * | 2013-02-14 | 2014-08-21 | Swep International Ab | Port opening with supercooling |
CN105008850A (en) * | 2013-02-14 | 2015-10-28 | 舒瑞普国际股份公司 | Combined condensor and evaporator |
US10139141B2 (en) | 2013-02-14 | 2018-11-27 | Swep International Ab | Combined condensor and evaporator |
WO2014125088A1 (en) * | 2013-02-14 | 2014-08-21 | Swep International Ab | Combined condensor and evaporator |
US10378799B2 (en) | 2013-02-14 | 2019-08-13 | Swep International Ab | Port opening with supercooling |
US10038751B2 (en) | 2013-03-15 | 2018-07-31 | Doro AB | Sensor system |
JP2020106247A (en) * | 2018-12-28 | 2020-07-09 | 株式会社鷺宮製作所 | Structure for fixing temperature type control valve to heat source |
DE102022202732A1 (en) | 2022-03-21 | 2023-09-21 | Mahle International Gmbh | Stacked disk heat exchanger for a thermal management module |
Also Published As
Publication number | Publication date |
---|---|
EP1295072A1 (en) | 2003-03-26 |
ATE357636T1 (en) | 2007-04-15 |
AU2000258208A1 (en) | 2002-01-08 |
DE60034071T2 (en) | 2007-12-06 |
ES2279760T3 (en) | 2007-09-01 |
DE60034071D1 (en) | 2007-05-03 |
EP1295072B1 (en) | 2007-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3644077B2 (en) | Refrigeration cycle | |
EP1295072B1 (en) | A heat exchanger and a heat exchanger/expansion valve assembly | |
US4852364A (en) | Expansion and check valve combination | |
US6000465A (en) | Heat exchange with a receiver | |
US10234180B1 (en) | Integrated cold plate with expansion device and uniform cooling method achieved therewith | |
US6185959B1 (en) | Refrigerant system components with cartridge type thermal expansion valve and method of making same | |
US20020046571A1 (en) | Condenser module and dryer | |
RU2417344C2 (en) | Device and procedure for control of cooling systems | |
JP2008534894A (en) | Refrigeration system with saving cycle | |
JPH06307740A (en) | Temperature expansion valve | |
US4114397A (en) | Evaporator | |
US20030051503A1 (en) | Refrigerant cycle system having discharge function of gas refrigerant in receiver | |
US4809518A (en) | Laminate type evaporator with expansion valve | |
CA2159143C (en) | Heat exchanger with integral filter/drier cartridge | |
US5052193A (en) | Air conditioning system accumulator | |
US4718245A (en) | Refrigeration system with bypass valves | |
EP1052464B1 (en) | Thermal expansion valve | |
US3683637A (en) | Flow control valve | |
KR20030035992A (en) | Expansion valve | |
JP3987166B2 (en) | Temperature-type subcool control valve | |
US5966950A (en) | Method of regulating a refrigeration circuit | |
JP2009092276A (en) | Refrigerating cycle | |
CN1021926C (en) | Pressure-differential expansion valve | |
JP2003090648A (en) | Expansion valve | |
US6971251B2 (en) | Integrated condenser/receiver |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2000943917 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2000943917 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2000943917 Country of ref document: EP |