EP2309208A1 - Cycle de réfrigération - Google Patents

Cycle de réfrigération Download PDF

Info

Publication number
EP2309208A1
EP2309208A1 EP09750463A EP09750463A EP2309208A1 EP 2309208 A1 EP2309208 A1 EP 2309208A1 EP 09750463 A EP09750463 A EP 09750463A EP 09750463 A EP09750463 A EP 09750463A EP 2309208 A1 EP2309208 A1 EP 2309208A1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
refrigeration cycle
heat exchanger
internal heat
refrigeration
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.)
Granted
Application number
EP09750463A
Other languages
German (de)
English (en)
Other versions
EP2309208A4 (fr
EP2309208B1 (fr
Inventor
Akira Kaneko
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41340033&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2309208(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sanden Corp filed Critical Sanden Corp
Publication of EP2309208A1 publication Critical patent/EP2309208A1/fr
Publication of EP2309208A4 publication Critical patent/EP2309208A4/fr
Application granted granted Critical
Publication of EP2309208B1 publication Critical patent/EP2309208B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/12—Inflammable refrigerants
    • F25B2400/121—Inflammable refrigerants using R1234
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/18—Refrigerant conversion

Definitions

  • the present invention relates to a refrigeration cycle, and specifically relates to a refrigeration cycle which can be operated in a high refrigeration ability when a new-type refrigerant is used.
  • refrigeration cycle 1 has compressor 2 for compressing refrigerant, condenser 3 for condensing compressed refrigerant, expansion valve 4 as a pressure reduction and expansion means for reducing in pressure and expanding condensed refrigerant, evaporator 5 for evaporating pressure-reduced and expanded refrigerant and internal heat exchanger 6 for exchanging heat between refrigerant at the exit side of the condenser and refrigerant at the exit side of the evaporator, where the refrigerant is circulated in the arrow direction as changing in state in refrigerant cycle 1.
  • internal heat exchanger 6 provided in refrigeration cycle 1 can generally improve its refrigeration ability.
  • internal heat exchanger 6 has not been used actually because the advantage thereby is relatively low when using typical refrigerant R134a.
  • R134a can be quoted as a typical refrigerant at present, and new type refrigerants have been researched and developed aiming further improvement of global warming potential (GWP), etc., as disclosed in Non-patent document 1.
  • GWP global warming potential
  • R1234yf has been announced recently as a new refrigerant aiming at such an improvement, and it is becoming possible that it is examined and studied for applying to refrigeration cycle as used for an automotive air conditioning system.
  • Non-patent document 1 Refrigeration, Vol. 83, No. 965, March issue, 2008
  • an object of the present invention is to provide a refrigeration cycle, which can be operated in a high refrigeration ability greater than or equal to a refrigeration cycle using the conventional refrigerant R134a even when refrigerant is changed to the new-type refrigerant R1234yf.
  • a refrigeration cycle according to the present invention is a refrigeration cycle comprising a compressor for compressing refrigerant, a condenser for condensing compressed refrigerant, a pressure reduction and expansion means for reducing in pressure and expanding condensed refrigerant, an evaporator for evaporating pressure-reduced and expanded refrigerant, and an internal heat exchanger for exchanging heat between refrigerant at an exit side of the condenser and refrigerant at an exit side of the evaporator, characterized in that R1234yf is used as refrigerant for the refrigeration cycle, and an amount of heat exchange by the internal heat exchanger is greater than or equal to a specific value that has been determined beforehand by a simulation or an experiment.
  • Fig. 2 shows how the refrigeration ability can be improved by using the internal heat exchanger when the new-type refrigerant R1234yf is used in the refrigeration cycle having the same basic configuration as shown in Fig. 1 , in comparison between one case where the conventional refrigerant R134a is used without using an internal heat exchanger and the other case where the new-type refrigerant R1234yf is used as using an internal heat exchanger, under the same calculational condition such as condensation temperature, evaporation temperature, superheating degree and subcooling degree.
  • the horizontal axis of Fig. 2 shows quantity of heat exchange by the internal heat exchanger (the ability of the internal heat exchanger), and the vertical axis thereof shows the refrigeration ability as a whole refrigeration cycle.
  • the refrigeration ability changes as shown in Fig. 2 by providing the internal heat exchanger.
  • the quantity of heat exchange by internal heat exchanger is shown as constant because the internal heat exchanger is not used. In other words, if the quantity of heat exchange by the internal heat exchanger is greater than or equal to a specific value, such as 0.7kW in the comparative characteristic diagram shown in Fig. 2 , the improvement of refrigeration ability by providing the internal heat exchanger can be achieved surely in a case where the new-type refrigerant R1234yf is used.
  • the refrigeration ability with R1234yf is less than that with R134a, which means that the advantage of providing the internal heat exchanger as seen in the R134a case cannot be obtained. Therefore, it can be found that only if the quantity of heat exchange by the internal heat exchanger is set greater than or equal to a specific value, or a predetermined value, the case with R1234yf can achieve refrigeration ability greater than or equal to the case with R134a, so as to actually improve the refrigeration ability.
  • the present invention is based on this technical idea and characterized in that , when R1234yf is used as refrigerant for the refrigeration cycle an amount of heat exchange by the internal heat exchanger is greater than or equal to a specific value that has been determined beforehand by a simulation or an experiment. Namely, used is the region identified by hatching, which is the right side region of the point of intersection with a characteristic line in the R134a case and another characteristic line in the R1234yf case, in Fig. 2 .
  • the specific value of the amount of heat exchange by the internal heat exchanger is set so that a total refrigeration ability of the refrigeration cycle using R1234yf as refrigerant is greater than or equal to a total refrigeration ability of a refrigeration cycle using R134a as refrigerant under the same conditions.
  • the size or thermal efficiency of the internal heat exchanger can be set arbitrarily if specification of the evaporator or the condenser used in each refrigeration cycle is preliminarily known.
  • a refrigeration cycle which is configured based on this concept, because the approximate ability of the internal heat exchanger is known, refrigeration ability as a whole refrigeration cycle can be obtained stably, where the refrigeration ability is kept greater than or equal to the refrigeration ability in the R134a case by properly controlling the opening degree of the decompression-expansion means according to the superheating degree of refrigerant at the outlet side connecting to the compressor side of the internal heat exchanger.
  • Such a refrigeration cycle according to the present invention is basically applicable to any refrigeration cycle which aims to use the new-type refrigerant R1234yf, and is specifically suitable to a refrigeration cycle used in an automotive air conditioning system which is required to achieve efficient operation for a long term.
  • the refrigeration cycle according to the present invention makes it possible that when the refrigerant is replaced to the new-type refrigerant R1234yf, the improvement of coefficient of performance (COP) can be greatly achieved, and superior characteristics, such as improvement of the global warming potential (GWP), etc., which the new-type refrigerant R1234yf has in itself can be performed.
  • COP coefficient of performance
  • GWP global warming potential
  • FIG. 1 A basic configuration of equipments of a refrigeration cycle according to the present invention can be the same one as shown in Fig. 1 .
  • refrigeration cycle 1 has compressor 2 for compressing refrigerant, condenser 3 for condensing compressed refrigerant, expansion valve 4 as a pressure reduction and expansion means for reducing in pressure and expanding condensed refrigerant, evaporator 5 for evaporating pressure-reduced and expanded refrigerant and internal heat exchanger 6 for exchanging heat between refrigerant at the exit side of the condenser and refrigerant at the exit side of the evaporator, where the refrigerant is circulated in the arrow direction as changing in state in refrigerant cycle 1, as described above.
  • the present invention basically uses the region identified by hatching, which is the right side region of the point of intersection with a characteristic line in the R134a case and another characteristic line in the R1234yf case, in Fig. 2 , as described above.
  • an internal heat exchanger is provided as using the new-type refrigerant R1234yf, so that the refrigeration ability can be improved from the conventional case using refrigerant R134a.
  • ability rate of internal heat exchanger which means an improvement effect of an ability by an internal heat exchanger to a refrigeration ability as a whole refrigeration cycle, will change when the condition of the amount of heat exchange by the internal heat exchanger at the point of intersection with a characteristic line in the R134a case and another characteristic line in the R1234yf case in Fig. 2 is changed to another condition thereof, such as different condensation temperature of the refrigerant.
  • Characteristic B in Fig. 3 shows a relation of "ABILITY RATE OF INTERNAL HEAT EXCHANGER TO REFRIGERATION ABILITY" as a whole refrigeration cycle to "CONDENSATION TEMPERATURE" if the efficiency of the internal heat exchanger is assumed to be 100%.
  • the intersectional point of the characteristic lines A and B in the calculation result shown in Fig. 3 is positioned at where the ability rate of the internal heat exchanger to refrigeration ability is 6.6%, if the ability rate is no less than 7% the refrigeration ability is to be surely improved by providing the internal heat exchanger, according to the relational characteristics shown in Fig. 3 .
  • the upper limit value of the ability rate is not specifically limited, and the refrigeration ability has been confirmed to be improved, even in a condition around 30%, according to the calculation result shown in Fig. 3 .
  • the refrigeration ability per unit volume can be kept no less than the level with the conventional refrigerant R134a by increasing the amount of heat exchange of the internal heat exchanger as shown in the region surrounded by a bold border in Table 1. Therefore, the compressor does not have to be operated rapidly any more.
  • the density of compressor suction refrigerant becomes low the circulating volume of refrigerant decreases, and a pressure loss can be reduced.
  • the compressor suction side refrigerant superheating degree becomes greater and the compressor discharge temperature becomes higher than R134a, so that the efficiency can be improved.
  • the coefficient of performance (COP) can be kept no less than the same level with R134a because the increase of the compressor power (consumption power) is comparatively small.
  • Fig. 4 - Fig. 6 show an example of comparative result between R1234yf and R134a on the Mollier diagram.
  • Fig. 4 - Fig. 6 show respective cases which have varied thermal efficiencies of the internal heat exchanger in the R1234yf case.
  • the conditions in each Fig. are as follows.
  • the refrigeration cycle according to the present invention is applicable for every refrigeration cycle where the new-type refrigerant R1234yf will be used, and specifically suitable as a refrigeration cycle used for an automotive air conditioning system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
EP09750463.3A 2008-05-20 2009-04-28 Cycle de réfrigération Active EP2309208B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008131981A JP5180680B2 (ja) 2008-05-20 2008-05-20 冷凍サイクル
PCT/JP2009/058336 WO2009142101A1 (fr) 2008-05-20 2009-04-28 Cycle de réfrigération

Publications (3)

Publication Number Publication Date
EP2309208A1 true EP2309208A1 (fr) 2011-04-13
EP2309208A4 EP2309208A4 (fr) 2011-07-06
EP2309208B1 EP2309208B1 (fr) 2014-04-16

Family

ID=41340033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09750463.3A Active EP2309208B1 (fr) 2008-05-20 2009-04-28 Cycle de réfrigération

Country Status (5)

Country Link
US (1) US20110067435A1 (fr)
EP (1) EP2309208B1 (fr)
JP (1) JP5180680B2 (fr)
CN (1) CN102037292A (fr)
WO (1) WO2009142101A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4170262A1 (fr) * 2021-10-20 2023-04-26 Thermo King Corporation Pompe à chaleur, procédés de fonctionnement et de simulation

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010032157A (ja) * 2008-07-30 2010-02-12 Denso Corp 冷凍サイクル装置
JP2011179689A (ja) * 2010-02-26 2011-09-15 Hitachi Appliances Inc 冷凍サイクル装置
JP2011247482A (ja) * 2010-05-27 2011-12-08 Panasonic Corp 冷凍装置および冷暖房装置
DE102010033518A1 (de) * 2010-08-05 2012-02-09 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Klimaanlage und Verfahren zum Betreiben einer Klimaanlage
WO2012101672A1 (fr) * 2011-01-26 2012-08-02 三菱電機株式会社 Dispositif de conditionnement d'air
JP5792585B2 (ja) * 2011-10-18 2015-10-14 サンデンホールディングス株式会社 冷凍機、冷蔵ショーケース及び自動販売機
JP6911527B2 (ja) * 2017-05-23 2021-07-28 株式会社デンソー 冷凍サイクル装置
JP7473198B2 (ja) 2020-10-16 2024-04-23 京都電子工業株式会社 振動式密度計、及び振動式密度計における気泡混入判定方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050233934A1 (en) * 2004-04-16 2005-10-20 Honeywell International, Inc. Azeotrope-like compositions of tetrafluoropropene and trifluoroiodomethane
EP1632733A2 (fr) * 2004-09-07 2006-03-08 Matsushita Electric Industrial Co., Ltd. Appareil à cycle de réfrigération et procédé de régulation
EP1862749A2 (fr) * 2006-05-30 2007-12-05 Sanden Corporation Cycle frigorifique à compression de vapeur
FR2905633A1 (fr) * 2006-09-08 2008-03-14 Valeo Systemes Thermiques Boucle de climatisation d'un vehicule automobile dont le fluide refrigerant est a base de 1,1,1,2-tetrafluoroproprene et de trifluoroiodomethane

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392612A (en) * 1984-08-08 1995-02-28 Richard H. Alsenz Refrigeration system having a self adjusting control range
JPH0754207B2 (ja) * 1986-11-25 1995-06-07 日本電装株式会社 冷凍サイクル装置
US4948525A (en) * 1988-04-06 1990-08-14 Nippon Oil Co., Ltd. Lubricating oil compositions for refrigerators
JP2000179960A (ja) * 1998-12-18 2000-06-30 Sanden Corp 蒸気圧縮式冷凍サイクル
US7076964B2 (en) * 2001-10-03 2006-07-18 Denso Corporation Super-critical refrigerant cycle system and water heater using the same
US7279451B2 (en) * 2002-10-25 2007-10-09 Honeywell International Inc. Compositions containing fluorine substituted olefins
CN1732365A (zh) * 2002-11-11 2006-02-08 沃特克斯·埃尔康公司 具有过冷旁路和部件体积全优化的制冷系统
JP2005337700A (ja) * 2004-04-28 2005-12-08 Fuji Electric Retail Systems Co Ltd 冷媒冷却回路
JP2006071174A (ja) * 2004-09-01 2006-03-16 Daikin Ind Ltd 冷凍装置
JP4626531B2 (ja) * 2005-04-01 2011-02-09 株式会社デンソー エジェクタ式冷凍サイクル
JP4246189B2 (ja) * 2005-09-07 2009-04-02 株式会社デンソー 冷凍サイクル装置
JP2007155229A (ja) * 2005-12-06 2007-06-21 Sanden Corp 蒸気圧縮式冷凍サイクル
JP4826759B2 (ja) * 2006-05-11 2011-11-30 三菱電機株式会社 圧縮機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050233934A1 (en) * 2004-04-16 2005-10-20 Honeywell International, Inc. Azeotrope-like compositions of tetrafluoropropene and trifluoroiodomethane
EP1632733A2 (fr) * 2004-09-07 2006-03-08 Matsushita Electric Industrial Co., Ltd. Appareil à cycle de réfrigération et procédé de régulation
EP1862749A2 (fr) * 2006-05-30 2007-12-05 Sanden Corporation Cycle frigorifique à compression de vapeur
FR2905633A1 (fr) * 2006-09-08 2008-03-14 Valeo Systemes Thermiques Boucle de climatisation d'un vehicule automobile dont le fluide refrigerant est a base de 1,1,1,2-tetrafluoroproprene et de trifluoroiodomethane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009142101A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4170262A1 (fr) * 2021-10-20 2023-04-26 Thermo King Corporation Pompe à chaleur, procédés de fonctionnement et de simulation
EP4170263A1 (fr) * 2021-10-20 2023-04-26 Thermo King LLC Pompe à chaleur, procédés de fonctionnement et de simulation
US12123634B2 (en) 2021-10-20 2024-10-22 Thermo King Llc Heat pump, methods of operation and simulation

Also Published As

Publication number Publication date
CN102037292A (zh) 2011-04-27
EP2309208A4 (fr) 2011-07-06
EP2309208B1 (fr) 2014-04-16
WO2009142101A1 (fr) 2009-11-26
JP5180680B2 (ja) 2013-04-10
US20110067435A1 (en) 2011-03-24
JP2009281610A (ja) 2009-12-03

Similar Documents

Publication Publication Date Title
EP2309208A1 (fr) Cycle de réfrigération
JP5241872B2 (ja) 冷凍サイクル装置
CN110337570B (zh) 空调装置
US10101060B2 (en) Cooling system
EP3118541B1 (fr) Appareil à cycle frigorifique
JP5018724B2 (ja) エジェクタ式冷凍サイクル
EP2955462B1 (fr) Appareil de pompe à chaleur
WO2013140990A1 (fr) Cycle de réfrigération et vitrine de réfrigération
EP2765383A1 (fr) Échangeur de chaleur et dispositif de cycle de réfrigération utilisant l'échangeur de chaleur
JP2005147456A (ja) 空気調和装置
JP4096984B2 (ja) 冷凍装置
EP2918947B1 (fr) Climatiseur
WO2018008129A1 (fr) Dispositif à cycle de réfrigération
EP2309206A1 (fr) Cycle de congélation
EP2889560B1 (fr) Dispositif de réfrigération
US20220333834A1 (en) Chiller system with multiple compressors
KR20050043089A (ko) 히트 펌프
KR100488532B1 (ko) 냉동시스템
CN115962529B (zh) 空调系统、空调系统的喷焓控制方法和可读存储介质
EP3492844B1 (fr) Climatiseur
WO2021245789A1 (fr) Dispositif à cycle de réfrigération
KR20160143278A (ko) 멀티증발기를 이용한 공기조화시스템 및 방법
JP2014231943A (ja) 冷凍サイクル装置
CN116438413A (zh) 制冷循环装置
JP2015117919A (ja) ヒートポンプシステム、及び、ヒートポンプ式給湯器

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20101202

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): 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 SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

A4 Supplementary search report drawn up and despatched

Effective date: 20110608

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20120215

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20131126

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): 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 SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 662814

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009023298

Country of ref document: DE

Effective date: 20140522

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 662814

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140416

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20140416

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140716

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140717

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140716

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140818

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602009023298

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140430

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140430

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: STIEBEL ELTRON GMBH & CO. KG

Effective date: 20150116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602009023298

Country of ref document: DE

Effective date: 20150116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140428

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602009023298

Country of ref document: DE

Representative=s name: PRUEFER & PARTNER MBB PATENTANWAELTE RECHTSANW, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602009023298

Country of ref document: DE

Owner name: SANDEN HOLDINGS CORPORATION, LSESAKI-SHI, JP

Free format text: FORMER OWNER: SANDEN CORPORATION, ISESAKI-SHI, GUNMA, JP

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SANDEN HOLDINGS CORPORATION

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Owner name: SANDEN HOLDINGS CORPORATION, JP

Effective date: 20160525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140428

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090428

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140416

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

REG Reference to a national code

Ref country code: DE

Ref legal event code: R100

Ref document number: 602009023298

Country of ref document: DE

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20220222

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602009023298

Country of ref document: DE

Owner name: SANDEN CORPORATION, ISESAKI-SHI, JP

Free format text: FORMER OWNER: SANDEN HOLDINGS CORPORATION, LSESAKI-SHI, GUNMA, JP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230321

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230321

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240321

Year of fee payment: 16