EP1740832A1 - Verdichter mit saugschalldämpfer - Google Patents

Verdichter mit saugschalldämpfer

Info

Publication number
EP1740832A1
EP1740832A1 EP05718563A EP05718563A EP1740832A1 EP 1740832 A1 EP1740832 A1 EP 1740832A1 EP 05718563 A EP05718563 A EP 05718563A EP 05718563 A EP05718563 A EP 05718563A EP 1740832 A1 EP1740832 A1 EP 1740832A1
Authority
EP
European Patent Office
Prior art keywords
muffler
head
extension
muffler head
compressor
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
EP05718563A
Other languages
English (en)
French (fr)
Other versions
EP1740832B1 (de
Inventor
Erhan Arcelik Anonim Sirketi KASAPOGLU
Serkan Arcelik Anonim Sirketi KARA
Atilla Arcelik Anonim Sirketi KAYA
Emre Arcelik Anonim Sirketi OGUZ
Husnu Arcelik Anonim Sirketi KERPICCI
Martien Janssen
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.)
Arcelik AS
Original Assignee
Arcelik 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 Arcelik AS filed Critical Arcelik AS
Publication of EP1740832A1 publication Critical patent/EP1740832A1/de
Application granted granted Critical
Publication of EP1740832B1 publication Critical patent/EP1740832B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125Cylinder heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027Pulsation and noise damping means
    • F04B39/0055Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0061Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027Pulsation and noise damping means
    • F04B39/0055Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0072Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes characterised by assembly or mounting

Definitions

  • This invention relates to a compressor, preferably used in refrigerators, which comprises a muffler that minimizes the noise generated by the refrigerant during the refrigeration cycle and, a cylinder head that is used to attach the muffler to the cylinder.
  • suction mufflers are utilized to ensure that the refrigerant used to achieve the cooling reaches the cylinder block without being heated and, that the noise that might be generated by the said refrigerant is prevented.
  • the suction muffler is generally manufactured from plastic material and located either on the cylinder head or between the cylinder head and the valve plate. The refrigerant sucked, reaches a cylinder block by passing through a muffler wherein its portion forming the suction manifold is placed inside the cylinder head. While attempting to minimize the noise generated, it is necessary to improve thermodynamic efficiency. However, heat transfer occurs at the section where the cylinder head and the muffler head are connected, such that the refrigerant and correspondingly the thermodynamic cycle are affected.
  • the cylinder head is manufactured in single piece and a portion of it is in full contact with the surfaces of the muffler that form the suction manifold.
  • the temperature of the refrigerant sucked into the cylinder rises because of the temperature difference formed at the cylinder head as a result of the discharge of the refrigerant to the exhaust manifold of cylinder head after leaving the cylinder, wherein both the pressure and temperature of the said refrigerant are increased by the compression process in the cylinder.
  • the rise in the temperature of the refrigerant causes its volume to increase thereby resulting in compression of less amount of refrigerant in a standard stroke volume and, decrease of volumetric efficiency of the compressor.
  • Fig.l - is a sectional view of a compressor.
  • Fig.2 - is a perspective view of a cylinder head and a suction muffler.
  • Fig.3 - is a top view of a cylinder head and a suction muffler.
  • Fig.4 - is an exploded view of a cylinder head, a valve plate and a suction muffler.
  • Fig.5 - is a perspective view of a cylinder head and a muffler head.
  • Fig.6 - is a bottom perspective view of a cylinder head and a muffler head.
  • Fig.7 - is a top view of a cylinder head and a muffler head.
  • Fig.8 - is a top perspective view of a cylinder head and a muffler head.
  • FIG.9 - is a bottom perspective view of a cylinder head and a muffler head, in another embodiment of the present invention.
  • Fig.10 - is a top perspective view of a cylinder head and a muffler head, in another embodiment of the present invention.
  • Fig.l 1 - is a top view of a cylinder head and a muffler head, in another embodiment of the present invention.
  • the compressor (1) comprises a cylinder (2) which provides the pumping of the refrigerant in it, a cylinder head (3), located above the cylinder (2), whereby the refrigerant that is sucked and discharged is circulated, a valve plate (5) between the cylinder (2) and cylinder head (3), above which the cylinder head (3) is placed, a suction muffler (4) with insulating properties, placed onto the cylinder head (3), and preferably made of plastic material, wherein acoustical energy of the refrigerant circulated inside it, is reduced thereby minimizing the noise generated during the circulation and, which ensures that the refrigerant reaches the cylinder head (3) without being heated.
  • the suction muffler (4) comprises a muffler head (8) whereby it is attached to the cylinder head (3) and, an outlet opening (6) on the muffler head (8) permitting the refrigerant to pass to the cylinder (2) therethrough.
  • the cylinder head (3) comprises a muffler head housing (7) into which the muffler head (8) fits, an exhaust volume (9) wherein the refrigerant discharged from the cylinder (2) is circulated and, a bridge (12) whereby the upper edges of the muffler head housing (7) are connected together and, the muffler head (8) is fixed inside the muffler head housing (7).
  • the muffler head (8) and the muffler head housing (!) incorporate one or more extensions (10) used to connect to each other and, one or more recesses (11) where the extension (10) is fitted.
  • the muffler head (8) and the muffler head housing (7) are in contact with each other only at the mentioned extension (10) and recess (11) and between them, there is provided a gap (B) functioning as an insulator, whereby it is achieved that the heat transfer is reduced by minimizing the contact of the muffler head housing (7) with the hot portions of the cylinder head (3) and, that the refrigerant is prevented from being heated.
  • the recess (11) is positioned on the muffler head (8) whereas the extension (10) that is used to fix the muffler head (8) by fitting it into the said recesses (11) is positioned on the muffler head housing (7).
  • the extension (10) is positioned on the muffler head (8) whereas the recess (11) where the extension (10) is fitted into is positioned on the muffler head housing (7).
  • At least one extension (10) in the form of a pin is positioned on the bridge (12) whereas recesses (11) in a form and amount appropriate with the said extensions (10) are positioned on the muffler head (8) (Fig.6, Fig.7, Fig.8).
  • the extensions (10) in the form of a triangle prism, positioned at the both lateral surfaces of the muffler head housing (7), are fitted into the recesses (11) positioned at the lateral surfaces of the muffler head (8), which are suitable for the extensions (10) from the aspects of form, position and number.
  • the muffler head (8) and the muffler head housing (7) are located so that up and down motion is prevented as a result of the triangle prism forms of the extensions (10) and recesses (11), and are fastened to the valve plate (5) wherein their front and back motion is prevented by means of the bridge (12) placed on the said extensions (10) and, except for the extensions (10) and the recesses (11), a gap (B) reducing the heat transfer is left in between (Fig.9, Fig.10, Fig.l 1).
  • the muffler head housing (7) comprising an extension (10) with projections in different directions which are utilized to prevent motion in different directions, is placed on the muffler head (8) comprising an recess (11) suitable for the said extension (10) from the aspects of form and position and, is fastened to the valve plate (5) by means of screws wherein between the mentioned muffler head housing (7) and the muffler head (8), except for the extensions (10) and the recesses (11), a gap (B) reducing the heat transfer is left (Fig.5).
  • the contact surface of the muffler head housing (7) and the muffler head (8) is reduced, resulting in that the refrigerant is taken into the cylinder cooler and thus denser and thereby, it is achieved that the performance of the compressor (1) is increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
EP05718563A 2004-03-26 2005-03-25 Verdichter mit saugschalldämpfer Active EP1740832B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200400607 2004-03-26
PCT/IB2005/051032 WO2005093255A1 (en) 2004-03-26 2005-03-25 Compressor with suction muffler

Publications (2)

Publication Number Publication Date
EP1740832A1 true EP1740832A1 (de) 2007-01-10
EP1740832B1 EP1740832B1 (de) 2007-06-06

Family

ID=34962045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05718563A Active EP1740832B1 (de) 2004-03-26 2005-03-25 Verdichter mit saugschalldämpfer

Country Status (6)

Country Link
EP (1) EP1740832B1 (de)
AT (1) ATE364135T1 (de)
DE (1) DE602005001324T2 (de)
ES (1) ES2286804T3 (de)
TR (1) TR200605252T1 (de)
WO (1) WO2005093255A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI1105384B1 (pt) 2011-12-20 2021-08-24 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda Tampa de cilindro de compressor alternativo
RU2549005C2 (ru) * 2013-02-06 2015-04-20 Закрытое акционерное общество "АТЛАНТ" Клапанно-поршневой узел герметичного холодильного компрессора
WO2016139267A1 (en) 2015-03-04 2016-09-09 Arcelik Anonim Sirketi A compressor comprising a suction muffler
TR201711734A2 (tr) * 2017-08-09 2019-02-21 Arcelik As Si̇li̇ndi̇r kafasi i̇le si̇li̇ndi̇r deli̇ği̇ arasinda etki̇n sizdirmazlik sağlanan bi̇r kompresör
US12066016B2 (en) 2019-07-12 2024-08-20 Nidec Global Appliance Brasil Ltda Reciprocating compressor having a suction acoustic filter with a fastener that deforms when in place

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1210741A (en) * 1981-08-25 1986-09-02 Hideki Kawai Sealed type motor compressor
JPS58160570A (ja) * 1982-03-18 1983-09-24 Matsushita Refrig Co 冷媒圧縮機の消音装置
IT1184167B (it) * 1985-03-21 1987-10-22 Eurodomestici Ind Riunite Perfezionamento nei motocompressori sigillati per circuiti frigoriferi
KR0136621Y1 (ko) * 1995-10-31 1999-03-20 구자홍 밀폐형 전동 압축기의 흡입소음기 체결구조
KR0186169B1 (ko) * 1995-11-15 1999-05-01 구자홍 밀폐형 압축기의 소음기체결장치
DE19923734C2 (de) * 1999-05-22 2001-03-29 Danfoss Compressors Gmbh Saugschalldämpfer für einen hermetisch gekapselten Verdichter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005093255A1 *

Also Published As

Publication number Publication date
ES2286804T3 (es) 2007-12-01
DE602005001324T2 (de) 2008-02-07
TR200605252T1 (tr) 2007-01-22
WO2005093255A1 (en) 2005-10-06
DE602005001324D1 (de) 2007-07-19
ATE364135T1 (de) 2007-06-15
EP1740832B1 (de) 2007-06-06

Similar Documents

Publication Publication Date Title
US8257061B2 (en) Hermetic compressor with internal thermal insulation
KR0143182B1 (ko) 압축기
EP1740832B1 (de) Verdichter mit saugschalldämpfer
CA2069208C (en) Refrigeration compressor having a contoured piston
US6494293B1 (en) Opening and closing system for oil path of linear compressor
US10167860B2 (en) Hermetic compressor and refrigeration apparatus
EP1957796B1 (de) Verdichter
US20020136646A1 (en) Reciprocating compressor having a discharge pulsation reducing structure
WO2017194516A1 (en) A hermetic compressor with improved sealing
EP1797324A1 (de) Verdichter
WO2017211704A1 (en) A hermetic compressor comprising an elastic suction muffler
EP2433006A1 (de) Kompressor mit einem zylinderkopf
EP1771660A1 (de) Verdichter
EP1718869B1 (de) Kältekompressor
WO2016139267A1 (en) A compressor comprising a suction muffler
WO2017191229A1 (en) A hermetic compressor with increased performance
WO2007017820A1 (en) A compressor
WO2019091665A1 (en) A hermetic compressor with improved sealing
JP2848418B2 (ja) 密閉型電動圧縮機
JPH0599141A (ja) 密閉型電動圧縮機
KR20040091485A (ko) 밀폐형 압축기
CN210164603U (zh) 压缩机和制冷装置
WO2007128713A1 (en) A compressor
CN113623226A (zh) 轴承组件、压缩机及制冷装置
JPH03271570A (ja) 密閉型電動圧縮機

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: 20060928

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 HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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 HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

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: 20070606

Ref country code: CH

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: 20070606

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: 20070606

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: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602005001324

Country of ref document: DE

Date of ref document: 20070719

Kind code of ref document: P

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

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: 20070906

ET Fr: translation filed
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: 20070606

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: 20070606

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2286804

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
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: 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: 20070606

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: 20070606

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: 20070606

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: 20071006

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: 20070606

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: 20071106

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

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: 20070606

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

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: 20070907

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: 20070606

26N No opposition filed

Effective date: 20080307

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

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: 20070606

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 NON-PAYMENT OF DUE FEES

Effective date: 20080331

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: 20070606

Ref country code: IE

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

Effective date: 20080325

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: 20070606

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

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: 20070906

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: 20080325

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

Effective date: 20071207

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523

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

Ref country code: DE

Payment date: 20240320

Year of fee payment: 20

Ref country code: GB

Payment date: 20240320

Year of fee payment: 20

Ref country code: SK

Payment date: 20240318

Year of fee payment: 20

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

Ref country code: TR

Payment date: 20240304

Year of fee payment: 20

Ref country code: IT

Payment date: 20240329

Year of fee payment: 20

Ref country code: FR

Payment date: 20240321

Year of fee payment: 20

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

Ref country code: ES

Payment date: 20240426

Year of fee payment: 20