EP3707380B1 - Hermetischer verdichter mit verbesserter abdichtung - Google Patents

Hermetischer verdichter mit verbesserter abdichtung Download PDF

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Publication number
EP3707380B1
EP3707380B1 EP18783415.5A EP18783415A EP3707380B1 EP 3707380 B1 EP3707380 B1 EP 3707380B1 EP 18783415 A EP18783415 A EP 18783415A EP 3707380 B1 EP3707380 B1 EP 3707380B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
insulating plate
cylinder
compressor
channel
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
EP18783415.5A
Other languages
English (en)
French (fr)
Other versions
EP3707380A1 (de
Inventor
Semih GUREL
Husnu Kerpicci
Ahmet Refik Ozdemir
Ercan KURTULDU
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
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Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP3707380A1 publication Critical patent/EP3707380A1/de
Application granted granted Critical
Publication of EP3707380B1 publication Critical patent/EP3707380B1/de
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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
    • 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
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates

Definitions

  • the present invention relates to a hermetic type compressor suitable for use in cooling devices.
  • hermetic compressors In hermetic compressors, the refrigerant is sucked from and pumped back to the refrigeration cycle by means of a piston operating in a cylinder.
  • the refrigerant with increased pressure and temperature while the refrigerant in the cylinder volume is compressed by the piston fills into the exhaust chamber in the cylinder head and from there is sent to the refrigeration cycle.
  • the cylinder head in the compressor compensates the compressive stress occurring due to the compression of the refrigerant as a result of the piston movement and enables the refrigerant with high temperature and pressure to be delivered to the exhaust muffler.
  • the refrigerant After being compressed by the piston and reaching a high pressure, the refrigerant is directed to the exhaust chamber, and the pressure difference between the interior of the compressor casing and the exhaust chamber in the cylinder head.
  • the refrigerant leaks into the interior of the casing through the walls of the cylinder head and valve table, casing pressure losses due to the passage of the refrigerant into the casing and decreasing the pressure of the refrigerant introduced into the refrigerant cycle.
  • the mixing of the refrigerant with the lubricant in the casing causes a decrease in the refrigerant amount and lubrication problems.
  • a hermetic reciprocating compressor having a Suction muffler arrangement comprises a channel arranged on a surface of a cylinder head and a rim on a surface of an insulating plate, wherein the rim of the insulating plate is fitted into the channel of the cylinder head.
  • this document does not disclose a clamp which increases the pressing force between the cylinder head and the insulating plate.
  • a cylinder head for a compressor and a compressor including the head is disclosed. Further, a refrigeration system is also disclosed, including the compressor.
  • the aim of the present invention is the realization of a compressor wherein refrigerant losses are prevented by improving the sealing between the cylinder head and the valve table.
  • the hermetic compressor comprises a valve table that is disposed between the cylinder and the cylinder head, that enables the refrigerant sucked from and pumped to the refrigeration cycle to be guided and whereon suction and exhaust ports and valves are disposed, and a cylinder heat that enables the pumped refrigerant to be directed.
  • a plastic insulating plate is disposed between the valve table and the cylinder head so as to provide leak-proofing.
  • a channel that peripherally extends at the inner side of the edges of the cylinder head is provided, and a protrusion that is arranged on the surface of the insulating plate seated on the cylinder head and that is fitted into said channel is provided.
  • the protrusion is press-fitted into the channel.
  • an o-ring is disposed between the protrusion and the channel.
  • cavities are provided on the cylinder head and pins that are fitted into said cavities are provided on the insulating plate.
  • the leak-proofing between the cylinder head and the valve table is improved, refrigerant losses are prevented and the performance is increased.
  • the hermetic compressor (1) suitable for use for circulation of the refrigerant fluid in cooling devices, for example refrigerators comprises a casing (2); a cylinder (3) that is disposed in the casing (2) and that enables the refrigerant to be sucked and pumped; a piston (4) that is operated in the cylinder (3); a body (5) that supports the cylinder (3) and the piston (4); a cylinder head (6) that enables the refrigerant sucked and pumped by means of the cylinder head (4) into the cylinder (3) to be directed; an exhaust chamber (7) that is disposed in the cylinder head (6) and wherein the pumped refrigerant fluid is accumulated; a metallic valve table (8) that is disposed between the cylinder (3) and the cylinder head (6); a suction port (9), an exhaust port (10) and suction and exhaust valves (not shown in figures) that are arranged on the valve table (8); an insulating plate (11) that is produced from a thermally insulating material, preferably plastic, and that is
  • the compressor (1) of the present invention comprises
  • the channel (12) is borne at a distance of 0.5 - 2.5 mm from the outer edge of the cylinder head (6) and has a depth of 0.5 - 2 mm.
  • the rim (13) is formed at a distance of 0.5 - 2.5 mm from the outer edge of the insulating plate (11) and has a height of 2 mm. The tolerances of the dimensions of the channel (12) and the rim (13) are determined such that the rim (13) is mounted into the channel (12) in a press-fit manner.
  • the leak-proofing is improved and refrigerant losses into the casing (2) are prevented.
  • the compressor (1) comprises an o-ring (14) that is formed as an open curve so as to leave a gap where the muffler head (19) passes, that is fitted into the channel (12) and that is squeezed between the base of the channel (12) and the rim (13) ( Figure 8 ).
  • the compressor (1) comprises a plurality of cavities (15) that are arranged on the surface, in contact with the insulating plate (11), of the cylinder head, at a region surrounded by the channel (12), and a plurality of deformable pins (16) that are provided at the surface, in contact with the cylinder head (6), of the insulating plate (11), at the region surrounded by the rim (13), that extend towards the cylinder head (6) in a direction perpendicular to the insulating plate (11) and that are crushed by being fitted into said cavities (15) ( Figure 5, Figure 6 ).
  • the compressor (1) comprises a channel (12) the length of which is increased by bending outwards two opposite arms of the quadrilateral channel (12), and a rim (13) the length of which is increased by bending outwards two opposite arms thereof so as to be fitted into said channel (12).
  • the channel (12) and the rim (13) with increased lengths, hence increased contact areas improve the leak-proofing, the strength and the centering of the cylinder head (6) with the insulating plate (11) - valve table (8) ( Figure 5, Figure 6 ).
  • the compressor (1) comprises a plurality of ribs (17) that are disposed at the rear surface of the cylinder head (6) where the bolts are mounted and that extend from the center towards the edges and/or towards the corners where the bolt holes are arranged.
  • the ribs (17) improve the strength of the cylinder head (6) and absorb the forces acting on the cylinder head (6) as a result of the movement of the piston (4) in the cylinder (3) ( Figure 7 ).
  • the compressor (1) comprises a clamp (not shown in figures) that is connected to the cylinder head (6) and the body (5) and that increases the pressing force of the cylinder head (6) onto the insulating plate (11), thus improving the leak-proofing.
  • the leak-proofing between the cylinder head (6) and the valve table (8) is improved, thus refrigerant leaks are prevented, the mass flow rate losses of the refrigerant are minimized, the coefficient of performance (COP) of the compressor (1) is increased, and the efficiency of the refrigeration cycle is improved.
  • the need for using an elastomer gasket between the cylinder head (6) and the insulating plate (11) is eliminated, thus providing cost advantage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Claims (5)

  1. Ein hermetischer Kompressor (1), der zur Verwendung in Kühlvorrichtungen geeignet ist, umfasst ein Gehäuse (2); einen Zylinder (3), der in dem Gehäuse (2) angeordnet ist und das Ansaugen und Pumpen des Kältemittels ermöglicht; einen Kolben (4); einen Körper (5), der den Zylinder (3) und den Kolben (4) trägt; einen Zylinderkopf (6), der ermöglicht, dass das mittels des Zylinderkopfs (4) in den Zylinder (3) angesaugte und gepumpte Kältemittel geleitet wird; eine Abgaskammer (7), die in dem Zylinderkopf (6) angeordnet ist und in der das gepumpte Kühlmittel gesammelt wird; einen metallischen Ventiltisch (8), der zwischen dem Zylinder (3) und dem Zylinderkopf (6) angeordnet ist; eine Ansaugöffnung (9) und eine Auslassöffnung (10), die auf dem Ventiltisch (8) angeordnet sind; eine Isolierplatte (11), die zwischen dem Ventiltisch (8) und dem Zylinderkopf (6) angeordnet ist; einen Saugschalldämpfer (18) und einen Schalldämpferkopf (19), der ermöglicht, dass das vom Saugschalldämpfer (18) kommende Kältemittel dem Zylinder (3) zugeführt wird,
    - einen Kanal (12), der auf der mit der Isolierplatte (11) in Kontakt stehenden Oberfläche des Zylinderkopfs (6) angeordnet ist und der sich an der Innenseite der Ränder des Zylinderkopfs (6) parallel zu den Rändern umlaufend erstreckt, so dass ein Spalt im Bereich verbleibt, wo der Schalldämpferkopf (19) hindurchtritt,
    - einen Rand (13), der auf der auf dem Zylinderkopf (6) aufsitzenden Oberfläche der Isolierplatte (11) angeordnet ist, die sich an der Innenseite der Kanten der Isolierplatte (11) parallel zu den Kanten umlaufend erstreckt, so dass im Bereich des Durchtritts des Schalldämpferkopfes (19) ein Spalt verbleibt, und die in den Kanal (12) eingepasst ist und
    - eine Klemme, die mit dem Zylinderkopf (6) und dem Körper (5) verbunden ist, wobei die Klemme konfiguriert ist, um die Druckkraft des Zylinderkopfs (6) auf die Isolierplatte (11) zu erhöhen.
  2. - Ein Kompressor (1), wie in Anspruch 1 aufgeführt, wobei der Kanal (12) in einem Abstand von 0,5 - 2,5 mm von der Außenkante des Zylinderkopfes (6) ausgebildet ist und eine Tiefe von 0,5 - 2 mm hat, und der Rand (13) in einem Abstand von 0,5 - 2,5 mm von der Außenkante der Isolierplatte (11) ausgebildet und eine Höhe von 2 mm aufweist.
  3. - Ein Kompressor (1), wie in Anspruch 1 oder 2 aufgeführt, wobei die Toleranzen der Abmessungen des Kanals (12) und der Felge (13) derart bestimmt sind, dass die Felge (13) in der Nut (12) durch Presspassung montiert ist.
  4. - Ein Kompressor (1), wie in Anspruch 1 aufgeführt, wobei ein O-Ring (14) als offene Kurve ausgebildet und in den Kanal (12) eingepasst ist.
  5. - Ein Kompressor (1), wie in Anspruch 1 aufgeführt, wobei mehrere Hohlräume (15) auf der mit der Isolierplatte (11) in Kontakt stehenden Oberfläche des Zylinderkopfs angeordnet sind und mehrere verformbare Stifte (16) an der mit dem Zylinderkopf (6) in Kontakt stehenden Oberfläche der Isolierplatte (11) vorgesehen sind; wobei die verformbaren Stifte (16) in die Hohlräume (15) eingepasst sind.
EP18783415.5A 2017-11-10 2018-10-02 Hermetischer verdichter mit verbesserter abdichtung Active EP3707380B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/17699A TR201717699A2 (tr) 2017-11-10 2017-11-10 Sizdirmazliği i̇yi̇leşti̇ri̇len hermeti̇k kompresör
PCT/EP2018/076777 WO2019091665A1 (en) 2017-11-10 2018-10-02 A hermetic compressor with improved sealing

Publications (2)

Publication Number Publication Date
EP3707380A1 EP3707380A1 (de) 2020-09-16
EP3707380B1 true EP3707380B1 (de) 2022-06-08

Family

ID=63798977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18783415.5A Active EP3707380B1 (de) 2017-11-10 2018-10-02 Hermetischer verdichter mit verbesserter abdichtung

Country Status (4)

Country Link
EP (1) EP3707380B1 (de)
PL (1) PL3707380T3 (de)
TR (1) TR201717699A2 (de)
WO (1) WO2019091665A1 (de)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0156720B1 (ko) * 1995-07-27 1999-03-20 김광호 왕복동형 압축기
JPH10122149A (ja) * 1996-10-25 1998-05-12 Sanden Corp 弁板装置
JP3860311B2 (ja) * 1997-10-21 2006-12-20 カルソニックカンセイ株式会社 斜板式圧縮機
US6553893B2 (en) * 2000-03-31 2003-04-29 Respironics, Inc. Piston assembly for reducing the temperature of a compressor cup seal
BRPI0505717B1 (pt) 2005-12-16 2020-03-10 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda Compressor hermético com isolamento térmico interno
SG185858A1 (en) 2011-06-01 2012-12-28 Panasonic Corp A valve plate for a compressor
BR102012025273B1 (pt) * 2012-10-03 2021-09-08 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda Compressor de refrigeração
WO2015000524A1 (en) * 2013-07-04 2015-01-08 Arcelik Anonim Sirketi Sealing assembly for reciprocating hermetic compressor
EP3334932B1 (de) * 2015-08-14 2022-01-19 SABIC Global Technologies B.V. Zylinderkopf für kompressor

Also Published As

Publication number Publication date
PL3707380T3 (pl) 2022-10-03
EP3707380A1 (de) 2020-09-16
TR201717699A2 (tr) 2019-05-21
WO2019091665A1 (en) 2019-05-16

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