EP2356384A1 - Expansionsventil mit vorspannmitteln - Google Patents

Expansionsventil mit vorspannmitteln

Info

Publication number
EP2356384A1
EP2356384A1 EP09752272A EP09752272A EP2356384A1 EP 2356384 A1 EP2356384 A1 EP 2356384A1 EP 09752272 A EP09752272 A EP 09752272A EP 09752272 A EP09752272 A EP 09752272A EP 2356384 A1 EP2356384 A1 EP 2356384A1
Authority
EP
European Patent Office
Prior art keywords
valve
elements
valves
valve part
expansion
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Withdrawn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
EP09752272A
Other languages
English (en)
French (fr)
Inventor
Claus Thybo
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.)
Danfoss AS
Original Assignee
Danfoss 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 Danfoss AS filed Critical Danfoss AS
Publication of EP2356384A1 publication Critical patent/EP2356384A1/de
Withdrawn legal-status Critical Current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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • 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
    • F25B41/325—Expansion valves having two or more valve members
    • 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
    • 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
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • 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
    • F25B41/40—Fluid line arrangements
    • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions

Definitions

  • the present invention relates to an expansion valve, in particular for use in a refrigeration system, e.g. an air condition system.
  • the expansion valve of the present invention is adapted to distribute fluid medium to at least two parallel flow paths, e.g. in the form of at least two parallel evaporators or evaporator tubes.
  • a fluid circuit such as a refrigerant circuit of a refrigeration system
  • a distributor is arranged downstream relative to an expansion valve in the refrigerant flow path.
  • the refrigerant is distributed after expansion of the refrigerant, i.e. the refrigerant is mainly gaseous. This has the disadvantage that it is very difficult to control the flow of refrigerant to obtain a substantially equal distribution between the parallel flow paths.
  • an expansion valve comprising:
  • first valve part having at least two valve seats formed therein, each of the valve seats being fluidly connected to one of the outlet openings,
  • first valve part and the second valve part being arranged movably relative to each other
  • each valve element being arranged in such a manner that the valve seats and the valve elements pair-wise form at least two valves
  • - biasing means arranged to bias the valve elements and the valve seats towards a position defining a minimum opening degree of the valves, or towards a position defining a maximum opening degree of the valves, wherein the second valve part and the valve elements are connected in such a manner that the mutual position of the first valve part and the second valve part determines an opening degree of each of the valves.
  • the expansion valve of the invention defines flow paths between the inlet opening and the at least two outlet openings. Fluid medium in a liquid state is received at the inlet opening and fluid medium in an at least partly gaseous state is delivered at the outlet openings.
  • the term 'liquid state' should be interpreted to mean that the fluid medium entering the expansion valve via the inlet opening is substantially in a liquid phase.
  • the term 'at least partly gaseous state' should be interpreted to mean that the fluid medium leaving the expansion valve via the outlet openings is completely in a gaseous phase, or at least a part, e.g. a substantial part, of the volume of the fluid medium leaving the expansion valve is in a gaseous phase. Accordingly, at least a part of the fluid medium entering the expansion valve undergoes a phase transition from the liquid phase to the gaseous phase when passing through the expansion valve.
  • the inlet opening and the outlet openings may preferably be fluidly connected to one or more other components, such as other components of a refrigeration system.
  • the expansion valve may advantageously form part of a flow system, such as a flow circuit.
  • the expansion valve comprises a first valve part and a second valve part arranged movably relative to each other. This may be achieved by mounting the first and/or the second valve part in a manner which allows it/them to move relative to the remaining parts of the expansion valve.
  • the first valve part may be movable while the second valve part is mounted in a fixed manner.
  • the second valve part may be movable while the first valve part is mounted in a fixed manner.
  • both of the valve parts may be movably mounted. In all of the situations described above a relative movement between the first valve part and the second valve part is possible, thereby defining a mutual position of the first valve part and the second valve part.
  • the first valve part has at least two valve seats formed therein, and each of the valve seats is fluidly connected to one of the outlet openings. At least two valve elements are arranged in such a manner that the valve seats and the valve elements pair-wise form at least two valves. The valve elements are further connected to the second valve part in such a manner that the mutual position of the first valve part and the second valve part determines an opening degree of the valves. Accordingly, the valve elements preferably performs movements relative to the valve seats when the first valve part and the second valve part perform relative movements.
  • the opening degrees of the valves, and thereby the amount of fluid medium supplied to each of the outlet openings can be adjusted by adjusting the mutual position of the first valve part and the second valve part. Since the opening degrees of the valves are defined by the mutual position of the first valve part and the second valve part, the opening degrees are adjusted synchronously, thereby at least substantially maintaining a distribution key among the outlet openings.
  • the expansion valve further comprises biasing means arranged to bias the valve elements and the valve seats towards a position defining a minimum opening degree of the valves, or towards a position defining a maximum opening degree of the valves.
  • biasing means arranged to bias the valve elements and the valve seats towards a position defining a minimum opening degree of the valves, the biasing means will attempt to close the valves, and when the expansion valve is operated to cause the valves to be opened, work must be performed against the biasing force provided by the biasing means.
  • the biasing means is arranged to bias the valve elements and the valve seats towards a position defining a maximum opening degree of the valves, the biasing means will attempt to keep the valves open, and when the expansion valve is operated to cause the valves to be closed, work must be performed against the biasing force provided by the biasing means.
  • the biasing force provided by the biasing means defines a point of equilibrium for the relative movements of the valve seats and the valve elements. Designing and positioning the biasing means carefully thereby allows a correspondence between a movement force applied for providing relative movement between the valve parts and opening degree of the valves to be designed. For instance, the biasing force may be selected in such a manner that a 'soft' closing of the valve is obtained, and/or in such a manner that a specific applied moving force results in a specific opening degree.
  • the valve elements may form part of the second valve part.
  • relative movements between the first valve part and the second valve directly results in corresponding relative movements between the valves seats and the valve elements.
  • the relative movements between the first valve part and the second valve part may be substantially linear movements causing each of the valve elements to simultaneously move towards or away from the corresponding valve seat.
  • the valve parts may each, e.g., be or comprise a substantially disk shaped part having the valve seats and the valve elements, respectively, formed on surface parts thereof.
  • the valve seats may be in the form of through-going bores of the disk forming the first valve part
  • the valve elements may be in the form of protruding parts formed on a surface of the disk forming the second valve part which is facing the first valve part.
  • valve elements may form separate parts being operatively connected to the second valve part.
  • the valve elements and the second valve part may be arranged on opposing sides of the first valve part, and moving the first valve part and the second valve part towards each other may cause the second valve part to simultaneously push the valve elements in a direction away from the valve seats, thereby increasing the opening degrees of the valves defined by the valve elements and valve seats.
  • the biasing means may advantageously be arranged to push the valve elements in a direction towards the valve seats. Thereby, when moving the first valve part and the second valve part away from each other, the biasing means will ensure that the valve elements are moved towards the valve seats, thereby decreasing the opening degree of the valves.
  • the biasing means may be or comprise at least one spring, such as a compressible spring.
  • the spring may be in a compressed state, in which case the spring force acts to push two parts, e.g. the first and second valve parts or the first valve part and one or more valve elements, away from each other.
  • the spring may be in a stretched state, in which case the spring force acts to pull two parts, e.g. the first and second valve parts or the first valve part and one or more valve elements, towards each other.
  • valve elements may be of a needle type, or they may be of a ball type. Alternatively, the valve elements may be of any other suitable kind.
  • the expansion valve may further comprise a thermostatic element, and the first valve part and/or the second valve part may be operatively connected to the thermostatic element, relative movements of the first valve part and the second valve part thereby being caused by the thermostatic element.
  • the thermostatic element determines the opening degrees of each of the valves defined by the valve seats and the valve elements, i.e. the thermostatic element simultaneously determines the mass flow to each of the outlet openings.
  • the biasing means may, in this case, be arranged to counteract movements caused by the thermostatic element in response to an increase in pressure.
  • biasing force provided by the biasing means and the moving force originating from the thermostatic element in response to changes in pressure in combination define an equilibrium which determines the opening degrees of the valves.
  • valve parts may be controlled by means of other suitable kinds of actuators.
  • the present invention provides a refrigeration system comprising: - at least one compressor,
  • the expansion valve according to the first aspect of the invention may advantageously be arranged in a refrigeration path of a refrigeration system, e.g. a refrigeration system used in a cooling arrangement or an air condition system.
  • Fig. 1 is a cross sectional view of an expansion valve according to a first embodiment of the invention.
  • Fig. 2 is a cross sectional view of an expansion valve according to a second embodiment of the invention.
  • Fig. 1 is a cross sectional view of an expansion valve 1 according to a first embodiment of the invention.
  • the expansion valve 1 comprises a first valve part 2 having a number of valve seats 3, two of which are visible, formed therein.
  • the expansion valve 1 further comprises a second valve part 4 having a number of valve elements 5 of a needle type, two of which are visible, forming part thereof.
  • the valve seats 3 and the valve elements 5 are arranged relative to each other in such a manner that a number of valves are defined by pairs of valve seats 3 and valve elements 5.
  • the first valve part 2 and the second valve part 4 are movable relative to each other along a substantially vertical direction of the Figure, i.e. in such a manner that the valve elements 5 are movable towards and away from the valve seats 3. Thereby the relative position of the first valve part 2 and the second valve part 4 determines the relative position of the valve seats 3 and the valve elements 5. Due to the substantially conical shape of the valve elements 5, the relative position of the first valve part 2 and the second valve part 4 determines the size of a passage through each valve seat 3, and thereby the opening degree of each of the valves defined by the pairs of valve seats 3 and valve elements 5.
  • the expansion valve 1 further comprises biasing means in the form of a compressible spring 6.
  • the spring 6 is arranged between the first valve part 2 and the second valve part 4. It may be in a compressed state, in which case it pushes the first valve part 2 and the second valve part 4 in a direction away from each other. Since the valve seats 3 form part of the first valve part 2 and the valve elements 5 form part of the second valve part 4, the spring 6 also pushes the valve seats 3 and the valve elements 5 in a direction away from each other, i.e. towards a position defining a maximum opening degree of the valves.
  • the spring 6 may be in a stretched state, in which case it pulls the first valve part 2 and the second valve part 4, and thereby the valve seats 3 and the valve elements 5, in a direction towards each other, i.e. towards a position defining a minimum opening degree of the valves.
  • the second valve part 4 is operatively connected to a thermostatic element (not shown), and the relative position of the first valve part 2 and the second valve part 4 is thereby determined by the thermostatic element.
  • the expansion valve 1 of Fig. 1 may operate in the following manner. Fluid medium in a substantially liquid state enters the expansion valve 1 via an inlet opening as illustrated by arrow 7. The fluid medium is led through the expansion valve 1 towards the valve seats 3, and further on towards outlet openings 8, eventually leaving the expansion valve 1 via the outlet openings 8. During this the fluid medium is expanded, and the fluid medium leaving the expansion valve 1 via the outlet openings 8 is therefore in an at least partly gaseous state.
  • Fig. 2 is a cross sectional view of an expansion valve 1 according to a second embodiment of the invention.
  • the expansion valve 1 of Fig. 2 comprises a first valve part 2 having a number of valve seats 3 formed therein, and a second valve part 4.
  • the first valve part 2 and the second valve part 4 are movable relative to each other along a substantially vertical direction of the Figure.
  • the expansion valve 1 further comprises a number of valve elements 5, two of which are visible, in the form of separate elements arranged movably with respect to the valve seats 3 and in such a manner that a number of valves are defined by pairs of valve seats 3 and valve elements 5.
  • valve elements 5 are arranged in such a manner that they are allowed to extend through the openings defined by the valve seats 3 and in abutment with the second valve part 4.
  • Biasing means in the form of compressible springs 6 are arranged between the valve elements 5 and a base part 9 of the expansion valve 1. The springs 6 are in a compressed state, thereby pushing the valve elements 5 towards the valve seats 3 and into abutment with the second valve part 4. Thus, the springs 6 push the valve elements 5 towards a position defining a minimum opening degree of the valves.
  • valve elements 5 are arranged in abutment with the second valve part 4, and since the springs 6 ensure a firm abutment between the valve elements 5 and the second valve part 4, the valve elements 5 perform movements corresponding to the movements of the second valve part 4.
  • the valve elements 5 and the valve seats 3 are moved in a direction towards each other, thereby decreasing the opening degrees of the valves defined by the valve seats 3 and the valve elements 5.
  • valve seats 3 and the valve elements 5 are pushed away from each other, thereby increasing the opening degrees of the valves defined by the valve seats 3 and the valve elements 5. Due to the substantially conical shape of the valve elements 5, the relative position of the first valve part 2 and the second valve part 4 thus determines the size of a passage through each valve seat 3, and thereby the opening degrees of the valves.
  • the second valve part 4 is operatively connected to a thermostatic element (not shown), and the relative position of the first valve part 2 and the second valve part 4 is thereby determined by the thermostatic element.
  • the expansion valve 1 of Fig. 2 may operate in the following manner. Fluid medium in a substantially liquid state enters the expansion valve 1 via an inlet opening as illustrated by arrow 7. The fluid medium is led through the expansion valve 1 towards the valve seats 3, and further on towards outlet openings 8 formed in the base part 9 and fluidly connected to the valve seats 3. The fluid medium leaves the expansion valve 1 via the outlet openings 8. During this the fluid medium is expanded, and the fluid medium leaving the expansion valve 1 via the outlet openings 8 is therefore in an at least partly gaseous state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Temperature-Responsive Valves (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)
EP09752272A 2008-11-12 2009-11-11 Expansionsventil mit vorspannmitteln Withdrawn EP2356384A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200801568 2008-11-12
PCT/DK2009/000234 WO2010054655A1 (en) 2008-11-12 2009-11-11 An expansion valve comprising biasing means

Publications (1)

Publication Number Publication Date
EP2356384A1 true EP2356384A1 (de) 2011-08-17

Family

ID=41785698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09752272A Withdrawn EP2356384A1 (de) 2008-11-12 2009-11-11 Expansionsventil mit vorspannmitteln

Country Status (8)

Country Link
US (1) US20120036885A1 (de)
EP (1) EP2356384A1 (de)
JP (1) JP2012508364A (de)
CN (1) CN102216703A (de)
BR (1) BRPI0921201A2 (de)
MX (1) MX2011004984A (de)
RU (1) RU2471105C1 (de)
WO (1) WO2010054655A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013127275A1 (zh) * 2012-02-28 2013-09-06 艾默生环境优化技术(苏州)有限公司 先导型电子膨胀阀
DE102022104545A1 (de) 2022-02-25 2023-08-31 Denso Automotive Deutschland Gmbh Kältemittelsammler-Modul für eine Wärmepumpenanordnung in einem Thermomanagementsystem für Fahrzeuge

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1589241A (en) * 1921-05-06 1926-06-15 Super Diesel Tractor Corp Atomizer
US1589243A (en) * 1921-09-17 1926-06-15 Super Diesel Tractor Corp Process of manufacturing and fitting valve disks
US2182718A (en) * 1938-05-27 1939-12-05 Alco Valve Company Inc Refrigerating apparatus
US2491905A (en) * 1944-05-29 1949-12-20 Gen Controls Co Refrigerating system
DE3138211A1 (de) * 1981-09-25 1983-04-07 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoff-einspritzpumpe fuer brennkraftmaschinen
JPS6138371A (ja) * 1984-07-31 1986-02-24 株式会社　鷺宮製作所 電動式流量調節弁
JPH0694335A (ja) * 1990-11-20 1994-04-05 Saginomiya Seisakusho Inc 可逆型膨張弁
US5251459A (en) * 1991-05-28 1993-10-12 Emerson Electric Co. Thermal expansion valve with internal by-pass and check valve
JPH05113273A (ja) * 1991-10-21 1993-05-07 Nippondenso Co Ltd 膨張弁
DE19520995A1 (de) * 1995-06-08 1996-12-12 Kueba Kaeltetechnik Gmbh Vorrichtung zur Leistungsoptimierung von mit Kältemitteln betriebenen Kühlern
JP3712828B2 (ja) * 1997-05-26 2005-11-02 株式会社鷺宮製作所 冷凍冷蔵装置、冷媒流量補正用バイパス弁および温度膨張弁
JP2001065713A (ja) * 1999-08-30 2001-03-16 Toshiba Kyaria Kk 空調機用冷媒流量制御弁
CZ2005354A3 (cs) * 2005-06-03 2006-06-14 Regulus Spol. S R. O. Usporádání bezpecnostního zarízení systému pro ohrev vody
DE102006006731A1 (de) * 2006-02-13 2007-08-16 Danfoss A/S Kühlanlage
JP5083107B2 (ja) * 2008-08-05 2012-11-28 株式会社デンソー 膨張弁及びそれを備えた蒸気圧縮式冷凍サイクル

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010054655A1 *

Also Published As

Publication number Publication date
MX2011004984A (es) 2011-05-30
RU2471105C1 (ru) 2012-12-27
CN102216703A (zh) 2011-10-12
BRPI0921201A2 (pt) 2016-02-23
WO2010054655A1 (en) 2010-05-20
JP2012508364A (ja) 2012-04-05
US20120036885A1 (en) 2012-02-16

Similar Documents

Publication Publication Date Title
US10151517B2 (en) Expansion valve with a distributor
US7210502B2 (en) Microvalve device suitable for controlling a variable displacement compressor
EP3559563B1 (de) Ejektorkühlystem und steuerungsverfahren dafür
US9714780B2 (en) On-demand micro expansion valve for a refrigeration system
CN102203524B (zh) 具有力平衡的膨胀阀
EP2479520B1 (de) Elektromagnetisches Dreiwegeventil
WO2007111040A1 (ja) 可変容量型圧縮機用制御弁
WO2010054655A1 (en) An expansion valve comprising biasing means
WO2010057496A2 (en) An expansion valve comprising a diaphragm and at least two outlet openings
WO1996011369A1 (fr) Conditionneur d'air
JP2012002282A (ja) 三方電磁弁
JPH02154955A (ja) 冷凍装置用自動膨張弁
ATE395566T1 (de) Kälteanlage
KR100930963B1 (ko) 적층형 압전파이로트 밸브를 이용한 공조기용 팽창밸브
JPS63293373A (ja) ２段階動作型電磁弁
JPH1062032A (ja) 空気調和機
KR101275071B1 (ko) 차량용 공조시스템의 팽창밸브
JPS62141469A (ja) ヒ−トポンプ式空気調和機
JPH05264128A (ja) 定圧膨張弁
JP2701942B2 (ja) 温度式サブクール制御弁

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: 20110610

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 SM TR

DAX Request for extension of the european patent (deleted)
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: 20160601