EP2031249B1 - Leistungsregelungsvorrichtung für Schraubenverdichter - Google Patents

Leistungsregelungsvorrichtung für Schraubenverdichter Download PDF

Info

Publication number
EP2031249B1
EP2031249B1 EP08014771.3A EP08014771A EP2031249B1 EP 2031249 B1 EP2031249 B1 EP 2031249B1 EP 08014771 A EP08014771 A EP 08014771A EP 2031249 B1 EP2031249 B1 EP 2031249B1
Authority
EP
European Patent Office
Prior art keywords
capacity control
cylinder
piston rod
end wall
control device
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.)
Active
Application number
EP08014771.3A
Other languages
English (en)
French (fr)
Other versions
EP2031249A3 (de
EP2031249A2 (de
Inventor
Ryuichiro Yonemoto
Yasuaki Iizuka
Masayuki Urashin
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.)
Hitachi Johnson Controls Air Conditioning Inc
Original Assignee
Hitachi Johnson Controls Air Conditioning Inc
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 Hitachi Johnson Controls Air Conditioning Inc filed Critical Hitachi Johnson Controls Air Conditioning Inc
Publication of EP2031249A2 publication Critical patent/EP2031249A2/de
Publication of EP2031249A3 publication Critical patent/EP2031249A3/de
Application granted granted Critical
Publication of EP2031249B1 publication Critical patent/EP2031249B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
    • F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/92—Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/10—Hardness

Definitions

  • the present invention relates to a capacity control device for a screw compressor, and more particular, to a capacity control device for a screw compressor, in which capacity control is performed by a capacity control valve as defined in the preamble of Claim 1.
  • a capacity control device is known for instance from US 2006/0165543 .
  • Conventional screw compressors include a capacity control device comprising a capacity control valve for controlling compressive capacity in response to a load.
  • the capacity control device comprises a cylinder formed in a discharge casing, a piston provided in the cylinder and a piston rod extending through a rod hole formed in the discharge casing, which defines the cylinder, to be connected to a capacity control valve (see, for example, JP-A-62-58077 ) .
  • a compressor comprising an outer casing having an inlet for the working fluid and an outlet for said fluid, an inner casing having an inlet port for said fluid and an outlet port for said fluid and forming with the outer casing an inter-casing space, a pair of parallel or substantially parallel meshing screw rotors rotatably mounted in the inner casing for compressing said fluid, and an outlet ducting for said fluid interconnecting the outlet port and the outlet and including a wall bridging the inter-casing space, is described. It is thereby an object to simplify the sealing of the movable rod.
  • the screw compressor has an acoustic barrier integral with the compressor housing for use with the slide valve assembly that includes a piston connected to a slide valve>
  • the invention has been thought of in view of the matter described above and has its object to provide a capacity control device for a screw compressor, in which leakage of pressure fluid in a cylinder, which is resulted by inclination movement of a piston rod, can be prevented.
  • the guide body may be fitted into the hole of the cylinder end wall. Also, in the capacity control device according to the invention, the guide body may be formed from a material being high in hardness as compared with the cylinder end wall.
  • the guide body may be made high in hardness by means of heat treatment as compared with the cylinder end wall.
  • FIGs. 1 to 3 show an embodiment of a capacity control device, for a screw compressor, of the invention
  • Fig. 1 being a longitudinal, cross sectional, front view showing a screw compressor comprising an embodiment of a capacity control device, for a screw compressor, of the invention
  • Fig. 2 being a longitudinal, cross sectional, front view showing, in enlarged view, the embodiment of the capacity control device, for a screw compressor, of the invention shown in Fig. 1
  • Fig. 3 is a longitudinal, cross sectional, front view showing, in enlarged view, a guide body used in the embodiment of the capacity control device, for a screw compressor, of the invention shown in Fig. 1 .
  • Fig. 1 shows an operation, in which a position of the capacity control valve is in a high load region
  • Fig. 2 shows an operation, in which a position of the capacity control valve is in a low load region.
  • a screw compressor generally comprises a compressor part 1, a motor part 2 provided on one side (on the left in Fig. 1 ) of the compressor part 1, and a discharge casing part 3 provided on the other side (on the right in Fig. 1 ) of the compressor part 1.
  • Gas being compressed flows to the compressor part 1 through an interior of the motor part 2 from a suction inlet 4 provided on the motor part 2, is increased in pressure and then discharged outside the compressor through the discharge casing part 3.
  • the compressor part 1 includes a main casing 5, a screw rotor 6 received in the main casing 5, a capacity control valve (slide valve) 7 arranged above the screw rotor 6, an oil reservoir section 8 arranged below the screw rotor 6, and roller bearings 9 that support one side of the screw rotor 6.
  • the discharge casing part 3 includes a discharge casing 10, a roller bearing 11 arranged in the discharge casing 10 to support the other side of the screw rotor 6, ball bearings 12, and a capacity control operating part (described later) that drives the capacity control valve 7 left and right in the figure.
  • the main casing 5 in the compressor part 1 is formed with a suction port 13, a discharge port 14, a discharge outlet 15, etc.
  • the suction port 13 and the suction inlet 4 define a suction flow passage to the screw rotor 6.
  • the discharge port 14 defines a discharge flow passage from the screw rotor 6.
  • the screw rotor 6 comprises a pair of a male rotor 6A and a female rotor (not shown), which mesh with each other, and is received in a pair of cylindrical-shaped bores (not shown).
  • Spindle portions provided on both sides of the male rotor 6A are supported by the roller bearings 9 mounted in the main casing 5 and the roller bearing 11 and the ball bearings 12, which are mounted in the discharge casing 10.
  • the capacity control valve 7 serves to bypass a part of sucked refrigerant gas sucked into a meshing portion of the screw rotor 6 to perform capacity control and is received movably in a recess 5b provided in the main casing 5.
  • the capacity control operating part that drives the capacity control valve 7 left and right in the figure includes, as shown in Figs. 1 and 2 , a cylinder 16, a piston 17 provided slidably in the cylinder 16, a piston rod 18 having one end thereof fixed to the piston 17 and having the other end thereof connected to the capacity control valve 7, and a coil spring 19 provided in a chamber of the cylinder 16 toward the piston rod 18 to generate a force for pushing the piston 17 rightward in Fig. 2 .
  • the cylinder 16 includes a cylinder hole 20 formed in the discharge casing 10, an end cover 21 that closes one side (on the right in Figs. 1 and 2 ) of the cylinder hole 20, and a cylinder end wall 22 formed on the discharge casing 10 to close the other side (on the left in Figs. 1 and 2 ) of the cylinder hole 20.
  • a guide body 24 of the piston rod 18 shown in Fig. 3 is threaded into and fixed to the threaded hole 23.
  • the guide body 24 is provided with a tube portion 24B, which has a hole 24A for guiding the piston rod 18, a flange portion 24C provided on one side of the tube portion 24B and threads 24D provided on an outer periphery of the tube portion 24B and threaded into the threaded hole 23 of the cylinder end wall 22.
  • an engagement groove 24E for a screwing tool is provided on an outer peripheral surface of the flange portion 24C
  • the guide body 24 includes an O-ring groove 24F provided on an inner surface of the hole 24A for guiding the piston rod 18 to receive an O-ring 25 that comes into sliding contact with an outer peripheral surface of the piston rod 18, and an O-ring groove 24G provided on an end surface of the flange portion 24C opposed to an inner surface of the cylinder end wall 22 to receive an O-ring 26 that abuts against the inner surface of the cylinder end wall 22.
  • a fluid supply passage 27 communicated with a piston-rod side chamber of the cylinder 16 is provided in the main casing 5 and the discharge casing 10.
  • the fluid supply passage 27 permits a high-pressure fluid from the oil reservoir section 8 to flow into and out of the cylinder 16.
  • An electromagnetic valve 28 is provided midway the fluid supply passage 27. The electromagnetic valve 28 opens and closes to control flow of oil to the cylinder 16 to move the piston 17 left and right in Fig. 1 . Thereby, the capacity control valve 7 is positionally controlled and capacity control is performed.
  • the motor part 2 comprises a motor casing 29, a motor stator 30, a motor rotor 31, etc.
  • the motor part 2 is structured to transmit its driving force to the male rotor 6A of the compressor part 1.
  • the motor stator 30 and the motor rotor 31 constitute a driving motor.
  • the motor stator 30 is mounted to the motor casing 29 and the motor rotor 31 is fixed to a spindle portion formed on one side of the male rotor 6A within the motor stator 30. With such construction, the driving force of the driving motor is transmitted to the male rotor 6A.
  • the female rotor is driven by the male rotor 6A.
  • the capacity control valve 7 and the capacity control operating part constitute a capacity control mechanism, of which capacity control uses the electromagnetic valve 28 to control flow of high-pressure fluid supplied through the fluid supply passage 27 to the cylinder 16 from the oil reservoir section 8 to move the piston 17 left and right in Fig. 1 .
  • the capacity control valve 7 is positionally controlled so as to enable operation under an appropriate load in response to an operating state to perform capacity control.
  • Fig. 4 is a longitudinal, cross sectional, front view showing another embodiment of a capacity control device, for a screw compressor, of the invention, Fig. 4 showing a position of a capacity control valve in operation in a low load region in the same manner as in Fig. 2 . Also, since the same reference numerals as those shown in Figs. 2 and 3 denote the same parts as those in the latter or parts corresponding to those in the latter, a detailed explanation therefor is omitted.
  • a guide body 24 comprises a tube portion 24B having a hole 24A for guiding a piston rod 18 and a flange portion 24C provided on one side of the tube portion 24B.
  • the guide body 24 is provided detachably on an inner side of a cylinder end wall 22 by inserting the tube portion 24B into a hole 32 of the cylinder end wall 22 and fixing the flange portion 24C to the inner side of the cylinder end wall 22 by means of bolts 33.
  • an O-ring 25 that comes into sliding contact with an outer peripheral surface of the piston rod 18 is provided on an inner surface of the hole 24A for guiding the piston rod 18, and an O-ring 26 that abuts against an inner surface of the cylinder end wall 22 is provided on an end surface of a flange portion 24C opposed to an inner surface of the cylinder end wall 22.
  • pressure in a cylinder 16 is surely maintained, so that a capacity control valve 7 can be held in an appropriate position and heightened in control performance and is improved in reliability.
  • exchange of the O-ring 25 is facilitated by removing the guide body 24 from the cylinder end wall 22 and a short period of time is sufficient for the work of exchange.
  • movements of the piston rod become large in case of trying to enlarge the range of capacity control, a degree of contact of the piston rod with the rod hole is further increased but such disadvantage can be accommodated for, so that it is possible to enlarge the range of capacity control of the screw compressor, thus enabling making its use various.
  • Fig. 5 is a longitudinal, cross sectional, front view showing a further embodiment of a capacity control device, for a screw compressor, of the invention, Fig. 5 showing a position of a capacity control valve in operation in a low load region in the same manner as in Fig. 2 . Also, since the same reference numerals as those shown in Figs. 2 and 3 denote the same parts as those in the latter or parts corresponding to those in the latter, a detailed explanation therefor is omitted.
  • a guide body 24 comprises a tube portion 24B having a hole 24A for guiding a piston rod 18 and a flange portion 24C provided on one side of the tube portion 24B.
  • the guide body 24 is provided on an inner surface of a cylinder end wall 22 with the tube portion 24B thereof press fitted into a hole 32 of the cylinder end wall 22.
  • An O-ring 25 that comes into sliding contact with an outer peripheral surface of the piston rod 18 is provided on an inner surface of the hole 24A of the guide body 24 for guiding the piston rod 18, and an O-ring 26 that abuts against an inner surface of the cylinder end wall 22 is provided on an end surface of a flange portion 24C opposed to an inner surface of the cylinder end wall 22.
  • pressure in a cylinder 16 is surely maintained in the same manner as in the previous embodiments, so that a capacity control valve 7 can be held in an appropriate position and heightened in control performance and is improved in reliability.
  • a capacity control valve 7 can be held in an appropriate position and heightened in control performance and is improved in reliability.
  • exchange of the O-ring 25 is facilitated by removing the guide body 24 from the cylinder end wall 22 and a short period of time is sufficieent for the work of exchange.
  • parts, such as bolts, etc., to fix the guide body 24 to the cylinder end wall 22 are dispensed with, thus enabling reducing parts cost.
  • the guide body 24 can be formed from a material being higher in hardness than that of the discharge casing 10 and can be formed to be made higher in hardness than a material of the discharge casing 10 by means of heat treatment, and the guide body 24 thus formed can be also fixed to the cylinder end wall 22 by the same means as that in the embodiments described above.
  • a further simple construction makes it possible to heighten a screw compressor in abrasion resistance and in reliability and to limit the number of renewal parts and manhour for exchange to a minimum, thus enabling rapidly restoring the capacity control function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (4)

  1. Kapazitätssteuervorrichtung für einen Schraubenverdichter, der ein Kapazitätssteuerventil (7), eine Kolbenstange (18), die mit dem Kapazitätssteuerventil (7) verbunden ist, einen Kolben (17) und einen Zylinder (16), der den Kolben (17) gleitend führt, umfasst, wobei ein Führungskörper (24), der schräge Bewegungen der Kolbenstange (18) ermöglicht und führt, an einer Zylinderstirnwand (22) des Zylinders (16), durch die die Kolbenstange (18) verläuft, vorgesehen ist; dadurch gekennzeichnet, dass der Führungskörper (24) einen Rohrabschnitt (24B) umfasst, der ein Loch (24A) besitzt, um die Kolbenstange (18) zu führen, und mit einer Gewindebohrung (23) der Zylinderstirnwand (22) durch Verschrauben befestigt ist, wobei der Rohrabschnitt (24B) alternativ in ein Loch der Zylinderstirnwand (22) eingepasst ist und ein Flansch (24C) auf einer Seite des Rohrabschnitts (24B) vorgesehen ist und auf Seiten einer inneren Oberfläche der Zylinderstirnwand (22) befestigt ist, und wobei zwischen einer inneren Oberfläche des Lochs (24A) des Rohrabschnitts (24B) zum Führen der Kolbenstange (18) und einer äußeren Umfangsoberfläche der Kolbenstange (18) ein O-Ring (25) vorgesehen ist.
  2. Kapazitätssteuerventil für einen Schraubenverdichter nach Anspruch 1, wobei der Rohrabschnitt (24B) in das Loch der Zylinderstirnwand (22) durch Presspassung eingesetzt ist.
  3. Kapazitätssteuerventil für einen Schraubenverdichter nach Anspruch 1 oder 2, wobei der Führungskörper (24) aus einem Material gebildet ist, das im Vergleich zu der Zylinderstirnwand (22) eine hohe Härte besitzt.
  4. Kapazitätssteuervorrichtung für einen Schraubenverdichter nach Anspruch 1 oder 3, wobei der Führungskörper (24) durch eine Wärmebehandlung eine Härte erhält, die im Vergleich zu jener der Zylinderstirnwand (22) hoch ist.
EP08014771.3A 2007-08-30 2008-08-20 Leistungsregelungsvorrichtung für Schraubenverdichter Active EP2031249B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007223471A JP4401408B2 (ja) 2007-08-30 2007-08-30 スクリュー圧縮機の容量制御装置

Publications (3)

Publication Number Publication Date
EP2031249A2 EP2031249A2 (de) 2009-03-04
EP2031249A3 EP2031249A3 (de) 2014-03-12
EP2031249B1 true EP2031249B1 (de) 2018-03-28

Family

ID=40011351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08014771.3A Active EP2031249B1 (de) 2007-08-30 2008-08-20 Leistungsregelungsvorrichtung für Schraubenverdichter

Country Status (5)

Country Link
EP (1) EP2031249B1 (de)
JP (1) JP4401408B2 (de)
CN (1) CN101377198B (de)
TR (1) TR201807695T4 (de)
TW (1) TW200925424A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5389755B2 (ja) * 2010-08-30 2014-01-15 日立アプライアンス株式会社 スクリュー圧縮機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1422821A (en) * 1973-06-20 1976-01-28 Howden Compressors Ltd Meshing-screw compressors
JPS6258077A (ja) 1985-09-06 1987-03-13 Hitachi Ltd スクリユ−圧縮機
US5044894A (en) * 1990-11-30 1991-09-03 Carrier Corporation Capacity volume ratio control for twin screw compressors
DE69815005T2 (de) * 1997-09-10 2004-01-15 Kobe Steel Ltd Spiralverdichter
US20060165543A1 (en) * 2005-01-24 2006-07-27 York International Corporation Screw compressor acoustic resonance reduction
US20100209280A1 (en) * 2007-10-01 2010-08-19 Carrier Corporation Screw compressor pulsation damper

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
JP4401408B2 (ja) 2010-01-20
JP2009057842A (ja) 2009-03-19
EP2031249A3 (de) 2014-03-12
CN101377198B (zh) 2012-05-09
TW200925424A (en) 2009-06-16
CN101377198A (zh) 2009-03-04
TWI371530B (de) 2012-09-01
TR201807695T4 (tr) 2018-06-21
EP2031249A2 (de) 2009-03-04

Similar Documents

Publication Publication Date Title
EP1172562B1 (de) Spiralverdichter
JP5358608B2 (ja) スクリュー圧縮機及びこれを用いたチラーユニット
JP4666106B2 (ja) スクリュー圧縮機
KR101590281B1 (ko) 경사판식 피스톤 펌프
US8287255B2 (en) Variable displacement rotary pump
TWI412665B (zh) 活塞匣
JP2009085156A (ja) 冷凍装置用のスクリュー圧縮機
TWI494508B (zh) Screw compressor
JP2008286109A (ja) 固定容量型ピストン式圧縮機における冷媒吸入構造
JP4448117B2 (ja) ブレーキシステムのポンプ
JP6539231B2 (ja) 斜板式ピストンポンプ
EP2031249B1 (de) Leistungsregelungsvorrichtung für Schraubenverdichter
JP2009062834A (ja) 固定容量型ピストン式圧縮機における冷媒吸入構造
WO2015159459A1 (ja) スクリュー圧縮機
EP3258113B1 (de) Schraubenverdichter
JP2010255595A (ja) スクリュー圧縮機
DE102004033862B4 (de) Maschine, die als Expansions- und Kompressionsmaschine dient
CN101128647A (zh) 压缩机的卸载阀
CN101460705B (zh) 压缩机装置和再制造压缩机或再设计压缩机构造的方法
CN106286293B (zh) 涡旋压缩机和空调系统
JP5065979B2 (ja) スクリュー圧縮機の吸込絞り弁及びこれを備えたスクリュー圧縮機
CN110192034B (zh) 螺杆压缩机
KR20210105247A (ko) 압축기
JP2006214368A (ja) 気体圧縮機
JP2004204753A (ja) スクリュー圧縮機

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: 20090102

AK Designated contracting states

Kind code of ref document: A2

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 MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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 MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F04C 18/16 20060101AFI20140131BHEP

Ipc: F04C 28/12 20060101ALI20140131BHEP

AKX Designation fees paid

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 MT NL NO PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: JOHNSON CONTROLS-HITACHI AIR CONDITIONING TECHNOLO

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170518

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20171009

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

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.

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 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: 983702

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180415

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: 602008054566

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

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

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: 20180328

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: 20180328

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: 20180628

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: 20180328

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180328

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: 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: 20180629

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: 20180628

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: 20180328

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: 20180328

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

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: 20180328

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: 20180328

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: 20180328

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: 20180328

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: 20180328

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

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: 20180328

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 983702

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180328

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: 20180730

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008054566

Country of ref document: DE

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

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: 20180328

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: 20180328

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190103

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

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: 20180328

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: LU

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

Effective date: 20180820

Ref country code: CH

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

Effective date: 20180831

Ref country code: LI

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

Effective date: 20180831

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: 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: 20180328

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: 20180820

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 NON-PAYMENT OF DUE FEES

Effective date: 20180820

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

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: 20080820

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: 20180328

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

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: 20180728

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

Ref country code: IT

Payment date: 20210720

Year of fee payment: 14

Ref country code: CZ

Payment date: 20210726

Year of fee payment: 14

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

Ref country code: GB

Payment date: 20210720

Year of fee payment: 14

Ref country code: BE

Payment date: 20210720

Year of fee payment: 14

Ref country code: TR

Payment date: 20210802

Year of fee payment: 14

Ref country code: DE

Payment date: 20210720

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008054566

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220820

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

Ref country code: CZ

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

Effective date: 20220820

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220831

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 NON-PAYMENT OF DUE FEES

Effective date: 20220820

Ref country code: DE

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

Effective date: 20230301

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

Ref country code: BE

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

Effective date: 20220831

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

Ref country code: GB

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

Effective date: 20220820

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

Ref country code: FR

Payment date: 20230720

Year of fee payment: 16