EP3707380B1 - Compresseur hermétique à étanchéité améliorée - Google Patents
Compresseur hermétique à étanchéité améliorée Download PDFInfo
- 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
Links
- 238000007789 sealing Methods 0.000 title description 2
- 239000003507 refrigerant Substances 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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
- F04B39/12—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)
- - Un compresseur hermétique (1) approprié pour être utilisé dans des dispositifs de refroidissement, comprenant un boîtier (2) ; un cylindre (3) qui est disposé dans le boîtier (2) et qui permet d'aspirer et de pomper le réfrigérant ; un piston (4) ; un corps (5) qui supporte le cylindre (3) et le piston (4) ; une culasse (6) qui permet de diriger le réfrigérant aspiré et pompé au moyen de la culasse (4) dans le cylindre (3) ; une chambre d'échappement (7) qui est disposée dans la culasse (6) et dans laquelle le fluide réfrigérant pompé est accumulé ; un plateau de soupape métallique (8) qui est disposé entre le cylindre (3) et la culasse (6) ; un orifice d'aspiration (9) et un orifice d'échappement (10) qui sont agencés sur le plateau de soupape (8) ; une plaque isolante (11) qui est disposée entre le plateau de soupape (8) et la culasse (6) ; un silencieux d'aspiration (18), et une tête de silencieux (19) qui permet au réfrigérant provenant du silencieux d'aspiration (18) d'être délivré au cylindre (3),- un canal (12) qui est disposé sur la surface, en contact avec la plaque isolante (11), de la culasse (6) et qui s'étend de manière périphérique sur le côté intérieur des bords de la culasse (6) parallèlement aux bords de telle sorte qu'un espace demeure au niveau de la région où passe la tête du silencieux (19),- un rebord (13) qui est agencé sur la surface, qui repose sur la culasse (6), de la plaque isolante (11), qui s'étend de manière périphérique sur le côté intérieur des bords de la plaque isolante (11) parallèlement aux bords de sorte qu'un espace reste au niveau de la partie où la tête du silencieux (19) passe, et qui est ajusté dans ledit canal (12) et
une pince qui est reliée à la culasse (6) et au corps (5), la pince étant configurée pour augmenter la force de pression de la culasse (6) sur la plaque isolante (11). - - Un compresseur (1) selon la déclaration 1, dans lequel le canal (12) est formé à une distance de 0,5 - 2,5 mm du bord extérieur de la culasse (6) et ayant une profondeur de 0,5 - 2 mm, et le rebord (13) est formé à une distance de 0,5 - 2,5 mm du bord extérieur de la plaque isolante (11) et ayant une hauteur de 2 mm
- - Un compresseur (1) selon la déclaration 1 ou 2, dans lequel les tolérances des dimensions du canal (12) et de la jante (13) sont déterminées de telle sorte que la jante (13) est montée dans le canal (12) d'une manière ajustée par pression.
- - Un compresseur (1) comme dans la déclaration 1, dans lequel un joint torique (14) est formé comme une courbe ouverte et ajusté dans le canal (12).
- - Un compresseur (1) selon la déclaration 1, dans lequel une pluralité de cavités (15) est disposée sur la surface, en contact avec la plaque isolante (11), de la culasse, et une pluralité de broches déformables (16) est prévue à la surface, en contact avec la culasse (6), de la plaque isolante (11), dans lequel lesdites broches déformables (16) sont ajustées dans les cavités (15).
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 (fr) | 2017-11-10 | 2018-10-02 | Compresseur hermétique à étanchéité améliorée |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3707380A1 EP3707380A1 (fr) | 2020-09-16 |
EP3707380B1 true EP3707380B1 (fr) | 2022-06-08 |
Family
ID=63798977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18783415.5A Active EP3707380B1 (fr) | 2017-11-10 | 2018-10-02 | Compresseur hermétique à étanchéité améliorée |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3707380B1 (fr) |
PL (1) | PL3707380T3 (fr) |
TR (1) | TR201717699A2 (fr) |
WO (1) | WO2019091665A1 (fr) |
Family Cites Families (9)
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 (fr) * | 2013-07-04 | 2015-01-08 | Arcelik Anonim Sirketi | Ensemble d'étanchéité pour compresseur hermétique alternatif |
EP3334932B1 (fr) * | 2015-08-14 | 2022-01-19 | SABIC Global Technologies B.V. | Culasse pour compresseur |
-
2017
- 2017-11-10 TR TR2017/17699A patent/TR201717699A2/tr unknown
-
2018
- 2018-10-02 PL PL18783415.5T patent/PL3707380T3/pl unknown
- 2018-10-02 EP EP18783415.5A patent/EP3707380B1/fr active Active
- 2018-10-02 WO PCT/EP2018/076777 patent/WO2019091665A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
PL3707380T3 (pl) | 2022-10-03 |
EP3707380A1 (fr) | 2020-09-16 |
TR201717699A2 (tr) | 2019-05-21 |
WO2019091665A1 (fr) | 2019-05-16 |
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