WO2019091665A1 - Compresseur hermétique à étanchéité améliorée - Google Patents
Compresseur hermétique à étanchéité améliorée Download PDFInfo
- Publication number
- WO2019091665A1 WO2019091665A1 PCT/EP2018/076777 EP2018076777W WO2019091665A1 WO 2019091665 A1 WO2019091665 A1 WO 2019091665A1 EP 2018076777 W EP2018076777 W EP 2018076777W WO 2019091665 A1 WO2019091665 A1 WO 2019091665A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder head
- cylinder
- channel
- compressor
- insulating plate
- Prior art date
Links
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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
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- 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.
- the aim of the present invention is the realization of a compressor wherein refrigerant losses are prevent 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.
- Figure 1 - is the cross-sectional view of a compressor.
- Figure 2 - is the exploded view of a compressor body, a valve table, an insulating plate and a cylinder head.
- Figure 3 - is the schematic view of the insulating plate and the cylinder head in separated state in the embodiment of the present invention.
- Figure 4 - is the schematic view of the insulating plate and the cylinder head in joined state.
- Figure 5 - is the perspective view of a cylinder head.
- Figure 6 - is the perspective view of an insulating plate.
- Figure 7 - is the perspective view of a cylinder head whereon ribs are provided.
- Figure 8 - is the perspective view of the o-ring in an embodiment of the present invention.
- 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
- a rim (13) that is arranged on the surface, that is seated on the cylinder head (6), of the insulating plate (11), that peripherally extends at the inner side of the edges of the insulating plate (11) parallel to the edges such that a gap remains at the region where the muffler head (19) passes, and that is fitted into said channel (12) when the cylinder head (6) is mounted onto the cylinder (3).
- 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)
Abstract
La présente invention concerne un compresseur hermétique (1) conçu pour être utilisé pour la circulation du fluide frigorigène dans des dispositifs de refroidissement, par exemple des réfrigérateurs, comprenant un carter (2) ; un cylindre (3) qui est disposé dans le carter (2) et qui permet au fluide frigorigène d'être aspiré et pompé ; un piston (4) qui est actionné dans le cylindre (3) ; un corps (5) qui supporte le cylindre (3) et le piston (4) ; une culasse (6) qui permet le guidage du fluide frigorigène aspiré et pompé au moyen du piston (4) dans le cylindre (3) ; une chambre d'échappement (7) qui est disposée dans la culasse (6) et dans laquelle est accumulé le fluide frigorigène pompé ; une table de soupape (8) qui est disposée entre le cylindre (3) et la culasse (6) ; une plaque isolante (11) qui est fabriquée en plastique et qui est disposée entre la table de soupape (8) et la culasse (6) ; un silencieux d'aspiration (18), et une tête de silencieux (19) qui permet que le fluide frigorigène soit délivré au cylindre (3).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL18783415.5T PL3707380T3 (pl) | 2017-11-10 | 2018-10-02 | Hermetyczna sprężarka z ulepszonym uszczelnieniem |
EP18783415.5A EP3707380B1 (fr) | 2017-11-10 | 2018-10-02 | Compresseur hermétique à étanchéité améliorée |
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 |
TRA2017/17699 | 2017-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019091665A1 true WO2019091665A1 (fr) | 2019-05-16 |
Family
ID=63798977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2018/076777 WO2019091665A1 (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) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5577898A (en) * | 1995-07-27 | 1996-11-26 | Samsung Electronics Co., Ltd. | Suction muffler arrangement for a hermetic reciprocating compressor |
JPH10122149A (ja) * | 1996-10-25 | 1998-05-12 | Sanden Corp | 弁板装置 |
US6120259A (en) * | 1997-10-21 | 2000-09-19 | Calsonic Corporation | Swash plate type compressor |
US6553893B2 (en) * | 2000-03-31 | 2003-04-29 | Respironics, Inc. | Piston assembly for reducing the temperature of a compressor cup seal |
EP1960669B1 (fr) | 2005-12-16 | 2010-06-16 | Whirlpool S.A. | Compresseur hermetique avec isolation thermique interne |
WO2012166051A1 (fr) | 2011-06-01 | 2012-12-06 | Panasonic Corporation | Plaque de clapet pour compresseur |
WO2015000524A1 (fr) * | 2013-07-04 | 2015-01-08 | Arcelik Anonim Sirketi | Ensemble d'étanchéité pour compresseur hermétique alternatif |
US20150275883A1 (en) * | 2012-10-03 | 2015-10-01 | Whirlpool S.A. | Thermal insulation system for the discharge of gas in a refrigeration compressor |
WO2017030986A1 (fr) * | 2015-08-14 | 2017-02-23 | Sabic Global Technologies B.V. | Culasse pour compresseur |
-
2017
- 2017-11-10 TR TR2017/17699A patent/TR201717699A2/tr unknown
-
2018
- 2018-10-02 WO PCT/EP2018/076777 patent/WO2019091665A1/fr unknown
- 2018-10-02 PL PL18783415.5T patent/PL3707380T3/pl unknown
- 2018-10-02 EP EP18783415.5A patent/EP3707380B1/fr active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5577898A (en) * | 1995-07-27 | 1996-11-26 | Samsung Electronics Co., Ltd. | Suction muffler arrangement for a hermetic reciprocating compressor |
JPH10122149A (ja) * | 1996-10-25 | 1998-05-12 | Sanden Corp | 弁板装置 |
US6120259A (en) * | 1997-10-21 | 2000-09-19 | Calsonic Corporation | Swash plate type compressor |
US6553893B2 (en) * | 2000-03-31 | 2003-04-29 | Respironics, Inc. | Piston assembly for reducing the temperature of a compressor cup seal |
EP1960669B1 (fr) | 2005-12-16 | 2010-06-16 | Whirlpool S.A. | Compresseur hermetique avec isolation thermique interne |
WO2012166051A1 (fr) | 2011-06-01 | 2012-12-06 | Panasonic Corporation | Plaque de clapet pour compresseur |
US20150275883A1 (en) * | 2012-10-03 | 2015-10-01 | Whirlpool S.A. | Thermal insulation system for the discharge of gas in a refrigeration compressor |
WO2015000524A1 (fr) * | 2013-07-04 | 2015-01-08 | Arcelik Anonim Sirketi | Ensemble d'étanchéité pour compresseur hermétique alternatif |
WO2017030986A1 (fr) * | 2015-08-14 | 2017-02-23 | Sabic Global Technologies B.V. | Culasse pour compresseur |
Also Published As
Publication number | Publication date |
---|---|
EP3707380B1 (fr) | 2022-06-08 |
EP3707380A1 (fr) | 2020-09-16 |
PL3707380T3 (pl) | 2022-10-03 |
TR201717699A2 (tr) | 2019-05-21 |
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