EP0502487B1 - Motor-compressor unit with its cylinder head formed in parts of different materials - Google Patents

Motor-compressor unit with its cylinder head formed in parts of different materials Download PDF

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Publication number
EP0502487B1
EP0502487B1 EP19920103641 EP92103641A EP0502487B1 EP 0502487 B1 EP0502487 B1 EP 0502487B1 EP 19920103641 EP19920103641 EP 19920103641 EP 92103641 A EP92103641 A EP 92103641A EP 0502487 B1 EP0502487 B1 EP 0502487B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
motor
cylinder
compressor unit
cavity
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
EP19920103641
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0502487A1 (en
Inventor
Vittorio Bianchi
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.)
Whirlpool Europe BV
Original Assignee
Whirlpool Europe BV
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 Whirlpool Europe BV filed Critical Whirlpool Europe BV
Publication of EP0502487A1 publication Critical patent/EP0502487A1/en
Application granted granted Critical
Publication of EP0502487B1 publication Critical patent/EP0502487B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads

Definitions

  • a motor-compressor unit of the type described herebefore is disclosed in EP-A-0195 486 and also in GB-A-2199 620.
  • An advantage of these known compressor-units is that the flow of heat energy from the gas in the discharge cavity to the gas in the intake cavity is obstructed by the fact that the portion of the cylinder head defining the intake cavity is made of a material, such as a plastics material, having a low thermal conductivity. In this way the efficiency of the compressor process is increased.
  • a cylinder head 10 is associated with one end of the cylinder 5. Between the cylinder and head 10 there is a plate 11 in which ports 12 and 13 are provided for the intake and discharge of the gas to be compressed respectively, and on which movable valves 14 and 15 (not shown in Figure 4) are positioned.
  • the plate 11 therefore acts as a valve plate and is separated from the head 10 and cylinder 11 by seal members or gaskets 16 and 17.
  • the first portion 21 comprises a flat part 25 containing the holes 19 for the elements or screws 19A for its fixing to the cylinder 5. From the part 25 there extends a raised part 26 (in which the discharge cavity 21A is formed) comprising a recess 28 to receive a projecting part or projection 29 of the second portion 22, which has a sunken part 31 from which there extends a raised part 32 provided with the projection 29. In this latter there is provided the intake cavity 22A, which is connected to other cavities 22B and 22C. The projection 29 is prolonged so that the intake cavity is positioned over the port 12 in the valve plate 11.
  • projections 33 facing the interior of said recess, and undercuts 34.
  • the projections are intended to cooperate with indentations 35 in the projection 29, whereas the undercuts 34 are intended to cooperate with shoulders 36 provided on the sides of said projection.
  • Heat passage is further impeded by the presence of the usual refrigerant gas within the casing 2 of the motor-compressor unit and thus within the space 23.
  • the portion 22 acts as a silencer as it does not function as a resonance box for the sounds generated by the fluid passing through it. This may allow the silencer present in known motor-compressor units to be dispensed with, thus reducing construction time, and contributes to noise reduction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
EP19920103641 1991-03-05 1992-03-03 Motor-compressor unit with its cylinder head formed in parts of different materials Expired - Lifetime EP0502487B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000170 IT221682Z2 (it) 1991-03-05 1991-03-05 Motocompressore con testata realizzata in parti di materiali differenti
ITMI910170U 1991-03-05

Publications (2)

Publication Number Publication Date
EP0502487A1 EP0502487A1 (en) 1992-09-09
EP0502487B1 true EP0502487B1 (en) 1995-05-17

Family

ID=11358248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920103641 Expired - Lifetime EP0502487B1 (en) 1991-03-05 1992-03-03 Motor-compressor unit with its cylinder head formed in parts of different materials

Country Status (5)

Country Link
EP (1) EP0502487B1 (it)
AR (1) AR247442A1 (it)
BR (1) BR9200703A (it)
DE (1) DE69202495T2 (it)
IT (1) IT221682Z2 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3813370B2 (ja) * 1999-01-13 2006-08-23 トヨタ自動車株式会社 流体ポンプ
JP2001123957A (ja) * 1999-10-27 2001-05-08 Sanden Corp 圧縮機
DE10255680B4 (de) * 2002-11-28 2008-07-31 Valeo Compressor Europe Gmbh Axialkolbenverdichter, insbesondere CO 2-Verdichter für Fahrzeug-Klimaanlagen mit geteiltem Zylinderkopf
FR2925623B1 (fr) * 2007-12-21 2013-08-16 Danfoss Commercial Compressors Culasse pour compresseur frigorifique a piston, unite de compression comprenant cette culasse, et compresseur frigorifique a piston comprenant cette unite de compression

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332259A1 (de) * 1983-09-07 1985-03-28 Danfoss A/S, Nordborg Kaeltemaschinenverdichter
IT1184167B (it) * 1985-03-21 1987-10-22 Eurodomestici Ind Riunite Perfezionamento nei motocompressori sigillati per circuiti frigoriferi
US4784581A (en) * 1987-01-12 1988-11-15 White Consolidated Industries, Inc. Compressor head and suction muffler for hermetic compressor

Also Published As

Publication number Publication date
EP0502487A1 (en) 1992-09-09
ITMI910170U1 (it) 1992-09-05
BR9200703A (pt) 1992-11-10
ITMI910170V0 (it) 1991-03-05
AR247442A1 (es) 1994-12-29
IT221682Z2 (it) 1994-09-13
DE69202495D1 (de) 1995-06-22
DE69202495T2 (de) 1996-02-01

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