EP0561383B1 - Kühlverdichter - Google Patents

Kühlverdichter Download PDF

Info

Publication number
EP0561383B1
EP0561383B1 EP93104357A EP93104357A EP0561383B1 EP 0561383 B1 EP0561383 B1 EP 0561383B1 EP 93104357 A EP93104357 A EP 93104357A EP 93104357 A EP93104357 A EP 93104357A EP 0561383 B1 EP0561383 B1 EP 0561383B1
Authority
EP
European Patent Office
Prior art keywords
compressor
chamber
silencer
gas
pipe
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.)
Expired - Lifetime
Application number
EP93104357A
Other languages
English (en)
French (fr)
Other versions
EP0561383A1 (de
Inventor
Maurizio Bucciarelli
Lanfranco Pol
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.)
ACC Compressors SpA
Original Assignee
Zanussi Elettromeccanica SpA
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 Zanussi Elettromeccanica SpA filed Critical Zanussi Elettromeccanica SpA
Publication of EP0561383A1 publication Critical patent/EP0561383A1/de
Application granted granted Critical
Publication of EP0561383B1 publication Critical patent/EP0561383B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0066—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using sidebranch resonators, e.g. Helmholtz resonators

Definitions

  • the present invention relates to a special form of inlet pipe for cooling gas inside an airtight enclosure containing an electric compressor, particularly employed in refrigerators for household use.
  • the body of the compressor has an inlet pipe inside the casing connected to the inlet valve via various channels and cavities that permit the drawn-in gas to be conveyed inside the cylinder.
  • the gas Being in contact with all the hot surfaces of the compressor, the gas heats up and reduces its density during these passages.
  • thermodynamic efficiency in this way would accordingly increase the level of acoustic power emitted, particularly during intake, that is transmitted directly outside the casing of the compressor, thereby compromising the requirements of quietness.
  • the acoustic control system is preferably made of plastic material.
  • An expansion silencer is realized between two pipes (having different sections) and by a Helmholtz resonator whose collar is positioned along the pipe at the outlet of the silencer on the side of the inlet valve.
  • the spread of the acoustic waves is subject to interference and reflection phenomena that attenuate their acoustic intensity (understood to be the energy flow per unit of area).
  • thermodynamic cycle there is no flow of gas through the resonator cavity. Since there is thus no variation in the gas temperature due to the interposed cavity, the efficiency characteristics of the thermodynamic cycle are maintained unchanged.
  • the gas entering the compressor and coming from the inlet pipe is not dispersed in the casing to be then drawn into the inlet pipe present in the compressor body, but is immediately "intercepted" and directed toward the head without being allowed to spread.
  • a silencer is designed and mounted for guiding the path of the gas and connecting on one side the area facing the gas entry port in the casing, and on the other side the inlet port in the cylinder head.
  • intake silencer 4 made of plastic material, with gas entry port 6 and gas outlet pipe 8 from chamber 5, followed by port 7 toward the gas inlet valve in the head.
  • the cooling gas in pipe 6 enters chamber 5 inside silencer 4.
  • the silencer is interposed between the cavity inside the compressor casing and the gas inlet pipe within cylinder head 3, and is substantially L-shaped, whereby the greater side, widened at the center and virtually box-shaped, contains expansion chamber 5 and gas admission pipe 6 into the chamber, and the restriction of the lesser side constitutes gas outlet pipe 8 from chamber 5.
  • Expansion chamber 5 can have different forms, but preferably has two substantially parallel plane opposing walls and two curved opposing walls with the same direction and with substantially the same angle of curvature.
  • Chamber 5 can also have different forms provided that the following proportions are maintained between some critical dimensions.
  • the ratio between the area of admission pipe 6 and the transverse section of chamber 5 must be approximately 0.03.
  • the length of cavity 5 must be approximately 34 mm.
  • the silencer is preferably made of plastic material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Claims (5)

  1. Elektrischer Verdichter, insbesondere für Kühlschränke für Haushalte, mit einem äußeren Gehäuse (1), einem Innenkörper (2), einem Zylinderkopf (3), einem Schalldämpfer (4), der zwischen dem Hohlraum innerhalb des Verdichtergehäuses und der Gaseinlaßpassage innerhalb des Zylinderkopfes (3) angeordnet ist, dadurch gekennzeichnet, daß in der Kammer (5) innerhalb des Schalldämpfers (4) das Verhältnis zwischen dem Bereich des Einlaßrohrs (6) und dem quergeführten Schnitt durch die Kammer (5) ungefähr 0,03 und die Länge der Kammer (5) ungefähr 34 mm ist, der Schalldämpfer (4) im wesentlichen L-förmig ist, wobei die längere Seite die Expansionskammer (5) und das Einlaßrohr (6) für das Gas in die Kammer beinhaltet, und die kürzere Seite das Auslaßrohr (8) für das Gas aus der Kammer (5) bildet und daß die kürzere Seite zuerst zu der Einlaßöffnung (7) in dem Einlaßventil für das Gas und dann zu dem Auslaßrohr (9) zu einem Helmholtz-Resonator führt.
  2. Verdichter nach Anspruch 1, dadurch gekennzeichnet, daß der Helmholtz-Resonator innerhalb des Verdichterkörpers gebildet ist.
  3. Verdichter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Expansionskammer (5) zwei im wesentlichen parallele, ebene, sich gegenüberliegende Wände und zwei gekrümmte, sich gegenüberliegende Wände mit derselben Ausrichtung und im wesentlichen demselben Krümmungswinkel aufweist.
  4. Verdichter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schalldämpfer (4) eine hakenähnliche Form aufweist, wobei das Auslaßrohr (9) an dem Endbereich des Hakens angeordnet ist.
  5. Verdichter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schalldämpfer (4) so funktioniert, daß er Geräusche bei einer adiabatischen Zustandsänderung reduziert.
EP93104357A 1992-03-18 1993-03-17 Kühlverdichter Expired - Lifetime EP0561383B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT92PN000010U IT229032Y1 (it) 1992-03-18 1992-03-18 Compressori frigoriferi perfezionati
ITPN920010 1992-03-18

Publications (2)

Publication Number Publication Date
EP0561383A1 EP0561383A1 (de) 1993-09-22
EP0561383B1 true EP0561383B1 (de) 1996-07-17

Family

ID=11394624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104357A Expired - Lifetime EP0561383B1 (de) 1992-03-18 1993-03-17 Kühlverdichter

Country Status (5)

Country Link
EP (1) EP0561383B1 (de)
AT (1) ATE140518T1 (de)
DE (1) DE69303644T2 (de)
ES (1) ES2090743T3 (de)
IT (1) IT229032Y1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG105449A1 (en) * 1995-09-29 2004-08-27 Matsushita Refrigeration Electrically-operated sealed compressor
BR9702045A (pt) * 1996-01-23 1998-01-13 Matsushita Refrigeration Compressor vedado operado eletricamente
CN101871444B (zh) * 2010-07-30 2012-07-18 思科普压缩机(天津)有限公司 消音器
CN104612941A (zh) * 2015-02-14 2015-05-13 浙江鸿友压缩机制造有限公司 一种基于多层级管式衰减单元的压缩机进气消声器
CN108026915B (zh) 2015-08-14 2020-10-13 沙特基础工业全球技术公司 用于压缩机的气缸盖
CN110285496B (zh) * 2019-07-29 2023-11-03 珠海格力节能环保制冷技术研究中心有限公司 消音器、制冷系统及空调器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8602173A (pt) * 1986-05-02 1987-12-22 Brasil Compressores Sa Aperfeicoamento em sistema de succao de compressor hermetico de refrigeracao
BR8804016A (pt) * 1988-07-29 1990-03-20 Brasil Compressores Sa Aperfeicoamento em sistema de succao para compressor hermetico de refrigeracao
BR9102288A (pt) * 1991-05-28 1993-01-05 Brasileira S A Embraco Empresa Conjunto abafador de succao para compressor hermetico

Also Published As

Publication number Publication date
DE69303644T2 (de) 1996-11-21
ATE140518T1 (de) 1996-08-15
IT229032Y1 (it) 1998-06-24
ES2090743T3 (es) 1996-10-16
EP0561383A1 (de) 1993-09-22
ITPN920010U1 (it) 1993-09-18
DE69303644D1 (de) 1996-08-22
ITPN920010V0 (it) 1992-03-18

Similar Documents

Publication Publication Date Title
JP4012253B2 (ja) 気密コンプレッサの吸引マフラ
EP1304480B1 (de) Silencieux d'aspiration pour compresseur
MXPA03004723A (es) Compresora hermetica y sistema de congelamiento por aire acondicionado.
US7770694B2 (en) Resonator arrangement in an acoustic muffler for a refrigeration compressor
WO2006116830A1 (en) Suction muffler for a refrigeration compressor
EP0561383B1 (de) Kühlverdichter
JP4159111B2 (ja) 往復動密閉圧縮機の吸込み装置
KR100838266B1 (ko) 밀폐형 왕복 압축기의 흡입 머플러
US7959416B2 (en) Suction system for a refrigeration compressor
WO2002044565A1 (fr) Compresseur ferme
CN108138707A (zh) 用于进气管线的声音衰减装置
WO2008098330A2 (en) Constructive arrangement of an acoustic filter for a refrigeration compressor
US4319549A (en) Secondary air supply system
JP2564867B2 (ja) 内燃機関の消音装置
KR100497460B1 (ko) 왕복동식밀폐형압축기의흡입장치
US4674277A (en) Secondary air supply system for an engine exhaust gas purifying system
KR100497462B1 (ko) 왕복동식밀폐형압축기의흡입장치
KR100507125B1 (ko) 차량용 가변 머플러
JPH0515526Y2 (de)
JPS6056917B2 (ja) 密閉型圧縮機
CN113623090A (zh) 进气管路和机动车
Schuchardt et al. An Air Induction System for a Four-Cylinder Engine: Design, Noise Control and Engine Efficiency
GB2238087A (en) Gas compressor with silencer for gas intake
JPH04124476A (ja) 密閉型圧縮機
ITPN960014U1 (it) Compressore frigorifero con silenziatore perfezionato

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE ES FR GB IT

17P Request for examination filed

Effective date: 19940309

17Q First examination report despatched

Effective date: 19950822

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

ITF It: translation for a ep patent filed

Owner name: PROPRIA PROTEZIONE PROPR. IND.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT

REF Corresponds to:

Ref document number: 140518

Country of ref document: AT

Date of ref document: 19960815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69303644

Country of ref document: DE

Date of ref document: 19960822

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2090743

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2090743

Country of ref document: ES

Kind code of ref document: T3

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: AT

Payment date: 20030206

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20030211

Year of fee payment: 11

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

Ref country code: GB

Payment date: 20030213

Year of fee payment: 11

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

Ref country code: DE

Payment date: 20030225

Year of fee payment: 11

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

Ref country code: ES

Payment date: 20030310

Year of fee payment: 11

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: 20040317

Ref country code: AT

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

Effective date: 20040317

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

Ref country code: ES

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

Effective date: 20040318

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

Ref country code: DE

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

Effective date: 20041001

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

Effective date: 20040317

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

Ref country code: FR

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

Effective date: 20041130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050317

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20040318