SG185858A1 - A valve plate for a compressor - Google Patents
A valve plate for a compressor Download PDFInfo
- Publication number
- SG185858A1 SG185858A1 SG2011039716A SG2011039716A SG185858A1 SG 185858 A1 SG185858 A1 SG 185858A1 SG 2011039716 A SG2011039716 A SG 2011039716A SG 2011039716 A SG2011039716 A SG 2011039716A SG 185858 A1 SG185858 A1 SG 185858A1
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- Singapore
- Prior art keywords
- plate
- compressor
- valve plate
- suction
- discharge
- Prior art date
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- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 43
- 239000011810 insulating material Substances 0.000 claims description 22
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 51
- 235000014676 Phragmites communis Nutrition 0.000 description 24
- 238000007906 compression Methods 0.000 description 14
- 239000003507 refrigerant Substances 0.000 description 13
- 230000006835 compression Effects 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 6
- 244000273256 Phragmites communis Species 0.000 description 4
- -1 Polybutylene terephthalate Polymers 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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
- F04B39/10—Adaptations or arrangements of distribution members
-
- 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
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
14A VALVE PLATE FOR A COMPRESSORA valve plate for a compressor, a compressor, and a method of thermal insulation applied in a compressor. The valve plate has a thermally insulating capability for thermally insulating a suction muffler of the compressor from a10 discharge plenum in a cylinder head of the compressor.Figure 2b15
Description
A VALVE PLATE FOR A COMPRESSOR
The present invention relates generally to valve plate for a compressor, a compressor, and {o a method of thermal insulation applied in a compressor.
Gas-compression refrigeration has been and still is the most widely used method for fridges and air-conditioning of large public buildings, private residences, hotels, hospitals, theatres, restaurants and automobiles efc. The gas-compression refrigeration system uses a circulating refrigerant as a medium, which absorbs and removes heat from a location or space io be cooled and subsequently dissipates the heat elsewhere.
A typical gas-compression system has four components: a compressor, a condenser, an expansion valve (also called a throttle valve), and an evaporator.
The compressor sucks low-temperature and low-pressure saturated gas from the evaporator and compresses the gas to high-pressure, resulting in higher temperature as well. To improve the volumetric and energetic efficiencies of the compressor, which is to draw larger volume of the gas within a compressor's single compression cycle, it is desired to thermally insulate the drawn low-temperature gas in the suction line from hotter parts of the compressor so that the low-temperature gas from the evaporator can be pumped in larger volume when its temperature is kept low. One of the major causes responsible for heating the internal components of the compressor is its discharge system, as the refrigerant gas reaches its highest temperature levels during the compression cycle. The heat generated by the compression is dissipated to other components of the compressor.
There are many components along the suction line. These components inciude a muffler, a cylinder head, and some pipelines, etc. Inside a commonly adopted reciprocating compressor for a refrigeration system, the muffler is usually provided inside the compressor shell at a gas suction side for conducting the received gas to a suction valve of the compressor. The valve, with its vaive plate, is the interface between the suction and discharge gas.
However, it is difficult to prevent heat exchange between the low-temperature gas and other hotter parts of the compressor because the drawn gas is present in the compressor within a narrow space and short distances from the hotter parts of the compressor. One approach is to improve thermal insulation for the storage or interface medium of the suction gas. These mediums can be manufactured from materials of low thermal conductivity, such as resins or plastics. Recently, there are also some structural approaches to improve thermal insulation of the muffler.
One suction muffler suggested in WO02/101239A1 has designed two acoustic chambers for refrigerant gas communication inside a muffler. In particular, a first acoustic chamber of the muffler, which directly receives low-temperature gas outside the compressor, is surrounded by a second acoustic chamber of the muffler.
This structure provides additional thermal insulation to the received low-temperature gas in the first acoustic chamber because heat flow from the exterior has to cross surrounding walls of the second acoustic chamber to reach the low-temperature gas inside the first acoustic chamber. However, the design of two acoustic chambers complicates the internal structure of the muffler and increases the muffler's size which also adversely affects the manufacturing cost of the muffler. Furthermore, the structural strength and reliability of the muffler may be compromised.
A need therefore exists to provide solution for a refrigeration system that seeks to address at least one of the above problems.
In accordance with a first aspect of the present invention there is provided a valve plate for a compressor, the valve piate having a thermally insulating capability for thermally insulating a suction muffler of the compressor from a discharge plenum in a cylinder head of the compressor.
The valve plate may comprise a first plate element made from thermally insulating material and a second plate element made from metal.
The first and second plate elements may be joint by one or more of a group consisting of press-fitting, injection molding, induction heating, bonding adhesive, and ultrasonic welding.
The first plate element may be disposed to face the discharge plenum.
The valve plate may further comprise a third plate element made from metal, and the first plate element is sandwiched between the first and second plate elements.
The first, second and third plate elements may be joint by one or more of a group consisting of press-fitting, injection molding, induction heating, bonding adhesive, and ultrasonic welding.
The first plate element may be configured to be received in a recess formed in the second plate element.
The recess may be formed around a suction orifice in the second plate element
The second plate element may comprise a raised portion around a discharge orifice in the second plate element, and the first plate element comprises an opening for receiving the raised portion.
The valve plate may comprise a first plate element made from thermally insulating material and a metal coating on one or both sides of the first plate.
In accordance with a second aspect of the present invention there is provided a compressor comprising a valve plate as defined in the first aspect. in accordance with a third aspect of the present invention there is provided a method of thermal insulation applied in a compressor, comprising using a valve plate having a thermally insulating capability for thermally insuiating a suction muffler of the compressor from a discharge plenum in a cylinder head of the
COMpPressor.
Embodiments of the invention will be better understood and readily apparent to one of ordinary skill in the art from the following written description, by way of example only, and in conjunction with the drawings, in which:
Figure 1 shows a schematic diagram illustrating a temperature profile of a refrigerant gas path inside a reciprocating compressor,
Figure 2 shows schematic drawings illustrating heat flow from high temperature discharge gas to the suction path at the suction and discharge interface, using (a) a conventional valve plate and (b) an valve plate structure according to an example embodiment.
Figure 3 shows a schematic drawing of a compressor according to an example embodiment.
Figure 4 shows a schematic drawing lliustrating a valve plate structure according to an example embodiment.
Figure 5 shows a schematic drawing illustrating a valve plate structure according to an example embodiment.
Figure 6 shows a schematic drawing illustrating a valve plate structure according to an example embodiment.
Figure 7 shows a schematic drawing illustrating a valve plate structure according to an example embodiment.
Figure 8 shows a schematic drawing illustrating a valve plate structure according fo an example embodiment. 5 Figure 9 shows a schematic drawing illustrating a valve plate structure according to an example embodiment.
Referring to Figure 1, the interior of a compressor 100 for hermetic gas- compression refrigeration is exposed for indicating a temperature profile of a refrigerant gas along its travelling path inside the compressor 100. The present invention is applicable to both Hermetic and semi-hermetic compressors. As will be appreciated by a person skilled in the art, the difference between the hermetic and semi-hermetic compressors is that the hermetic compressors use a one-piece welded steel casing that cannot be opened for repair. A semi-hermetic compressor uses a large cast metal shell with gasketed covers that can be opened to replace motor and pump components.
The compressor 100 comprises a suction inlet pipeline 102, a suction muffler 104, and a cylinder head 108. The suction muffler 104 is disposed inside the shell 106 of the compressor 100. The suction muffler 104 connects fc the cylinder head 108 which has a suction plenum 116 and a discharge plenum 114 at its interior. The suction plenum 116 receives the gas with lower temperature while the discharge plenum 114 receives the compressed gas from the cylinder chamber (hidden) at higher temperature.
The suction plenum 116 and the discharge plenum 114 are connected to a cylinder chamber (hidden) via a suction valve and a discharge valve (not shown) respectively.
The discharge plenum 114 is further connected fo the discharge pipeline 118 of the compressor 100 via muffier cover discharge 110 and discharge line 112 for discharging compressed gas at high temperature for the refrigeration system.
Along the travelling passage inside the compressor 100, initially, the low- temperature refrigerant gas is drawn into the suction muffler 104 via the suction inlet pipeline 102, either directly or indirectly. At the entrance of the inlet pipeline 102 going into the shell 106 (point 1), the gas has the lowest temperature inside the compressor shell 106, typically at about 40.5 degree Celsius. When the gas is drawn further fowards the muffler 104, it is heated up by the surroundings fo typically about 47.9 degree Celsius at the entrance (point 2) of the mufiler 104.
Inside the muffler 104, the gas temperature is typically further raised to about 60.3 degree Celsius (point 3) before reaching the cylinder head 108. Further down the travelling path where the gas arrives at the suction plenum 116 of the cylinder head 108, the temperature of the gas has typically reached about 66.2degree Celsius {point 4). The gas is then drawn via the suction valve (not shown) to be compressed in the cylinder chamber (hidden). The compressed gas leaves via the discharge valve (not shown} and enters the discharge plenum 114 of the cylinder head 108.
Inside the discharge plenum 114, the temperature of the compressed gas is typically about 117.9 degree Celsius (point 5). On leaving the cylinder head 108, the gas starts fo cool down. Along the down stream path via muffler cover discharge 110 and discharge line 112, and discharge pipeline 118 of the compressor 100, the high temperature and high pressure gas typically cools to about 82.8degree Celsius at the point (point 7) where the discharge pipeline exits the shell 106. it is evident that the gas has a large temperature difference between the adjacent suction 116 and discharge plenums 114. it has been recognised by the applicant that the high temperature gas contained in the discharge plenum 114 constitutes a heat source which can significantly contribute to the temperature increase in the low temperature suction refrigerant gas in the suction plenum 116 prior to compression. The increase in the suction refrigerant gas temperature causes an increase in its specific volume and reduces the mass flow rate of the refrigerant gas, which in turn leads to a drop in the compressor’s efficiency due to a reduction in cooling performance. It is noted that the high temperature compressed gas in the discharge plenum 114, as well as other heat sources within the compressor structure 100, also contributes to the overall temperature increase in the suction gas as the gas travels from the inlet pipe 102 via the muffler 104 into the suction plenum 116, which can further contribute to an overall increase in the suction refrigerant gas temperature.
Figure 2a shows the cross sectional view of a cylinder head 202 bolted to the cylinder body 203. The inventors have recognized that significant heat transmission takes place between the hot gas in the discharge plenum 204 and the gas in suction muffler 205 though the valve plate 201, which is typically made from a metal.
Through this the inventors have in pariicular recognized that, by creating a barrier for heat transfer between the suction and discharge gas at the valve plate 201, such a valve plate structure can significantly contribute to prevent the suction gas from being heated up. Figure 2b shows the resultant heat flow diagram when a valve plate structure 210 comprising first and second metal plate elements 212, 214 and an inlet 215 made from an insulating material in the plate element 212 1s provided, according io an example embodiment. The inlet 215 functions as a thermal barrier to hinder heat transmission from the gas in the discharge plenum 2186 to the gas in the suction muffler 218. This advantageously improves the overall thermal efficiency of the compressor.
Valve plate structure 210 acts as a seal between different pressure zones within the compressor. It contains both a suction orifice 220 and a discharge orifice 222, and thus provides fluid communication of the refrigerant. It is positioned between suction reed 224 and discharge reed 226, which open when differential pressures between zones are reached and allow gases to flow from high to low pressure regions during the compression cycle. Due to its functional attributes, valve plate structure 210 preferably is corrosion, chemical and wear resistani, as well as preferably being able to withstand high temperature. It also provides the seal to prevent leakage of refrigerant. Preferably, the valve plate structure 210 aiso allows run-time low noise and smooth movement. : 25
In Figure 3, a schematic drawings of a compressor according fo an example embodiment is shown. More particular, a cylinder head 300 is exposed to show its interior structure and assembly. The cylinder head 300 is generally rectangular in shape with its four corners rounded off. At the four corners, four equal sized apertures 308a-d are provided for bolting, using part 309a-d, the cylinder head 300 to the cylinder body 307. Other components in the cylinder head assembly include valve plate structure 301, comprising valve plate 301a and an insulating material inlet 301b, a discharge reed 302, a suction reed 303, and sealing gaskets 304, 305.
A suction muffler 306 fits into the suction plenum (hidden) in the cylinder head 300.
There are 2 alignment holes 310a-b at the rim of the valve plate 301a to provide reference guide during assembly of the cylinder head 300 fo the cylinder body 307.
Figures 4 to 8 show different types of valve plate structures according to different embodiments.
Figure 4 shows a valve plate structure 400, comprising two plates 401 and 402.
Plate 401 is made of thermally insulating material, while plate 402 is made of metal fo provide strength. When assembled, the thermally insulating material plate 401 will be located towards the discharge reed (not shown). During the compression cycle, the surface of the valve plate structure 400 facing the cylinder bore (not shown) is made of metal, i.e. metal plate 402. This preferably prevents deformation under high pressure. A flat surface finish of the thermally insulating material plate 401 is preferably ensured 10 prevent leakage. The flathess of the thermally insulated vaive plate can be ensured through flatness control methods such as, but not limited to, lapping. For example, the valve plate may be rubbed on a flat surface with an abrasive such as sandpaper there between, by hand movement or by machine. There are protrusions 403-07 formed on plate 401 and corresponding holes 408-12 formed on plate 402 to facilitate press fitting of plates 401 and 402 during assembly. The cross sectional view 414 shows the protrusions from plate 401 inserted in the corresponding holes in plate 402 so that plate 401 can be aligned and press fitted with plate 402.
Figure 5 shows a valve plate structure 500, comprising two plates 501 and 502.
Plate 501 is made of thermally insulating material, while plate 502 is made of metal fo provide strength. When assembled, the thermally insulating material plate 501 will be jocated towards the discharge reed (not shown). During the compression cycle, the surface of the valve plate structure 500 facing the cylinder bore (not shown) is made of metal, i.e. metal plate 502. This preferably prevents deformation under high pressure. A flat surface finish of the thermally insulating material plate 501 is preferably ensured to prevent leakage. Compared to the embodiment shown in Figure 4, there are no protrusions/corresponding holes formed the plates 501, 502, for press fitting. In this embodiment, plates 501, 502 can be assembled by for example, but not limiied to, injection molding, inductionheating, bonding adhesive, press fitting, ultrasonic welding efc.
Figure 6 shows a valve plate structure 800, comprising three plates 601, 602,
B03. Plate 602 is made of thermally insulating material, while plates 601, 603 are made of metal to provide strength. During the compression cycle, the surface of the valve plate structure 800 facing the cylinder bore (not shown) is made of metal, i.e. metal plate 603.
This preferably prevents deformation under high pressure. A flat surface finish of the thermally insulating material piate 601 is preferably ensured to prevent leakage. In use, the metal plates 801, 603 are thus in contact with the discharge reed (not shown) and the suction reed {not shown) respectively. This preferably ensures good surface contact and prevents leakage. Also, having the surfaces adjacent the discharge and suction reeds respectively made from metal preferably increases reliability, for example due to the metal surface better withstanding the reciprocating reed movements. Plates 601, 602 and 603 can be assembled by for example, but not limited to, press fitting, injection molding, induction heating, bonding adhesive, ultrasonic welding etc.
Figure 7 shows a valve plate structure 700, comprising one plate 701 and an inlet 702. Inlet 702 is made of thermally insulating material, while plate 701 is made of metal to provide strength. During the compression cycle, the surface of the vaive plate structure 700 facing the cylinder bore (not shown) is made of metal, i.e. metal plate 701.
This preferably prevenis deformation under high pressure. When assembled, the thermally insulating material inlet 701 is inserted in a corresponding recess 704 and will be located towards the discharge reed (not shown). While a flat surface finish of the thermally insulating material inlet 702 is again preferably ensured to prevent leakage, it will be appreciated that the majority of the surface facing the discharge reed (not shown) is made up by the surface of the metal plate 701, which preferably ensures good surface contact and prevents leakage. Plate 701 and inlet 702 can be assembled by for example, but not limited to, press fitting, injection molding, induction heating, bonding adhesive, ultrasonic welding etc. in this embodiment, because the regions where the screws are inserted are made of metal, deformation under high torque, e.g. when screws (not shown) are being tightened, is preferably prevented. Also, in use, the metal plate 701is thus in contact with both the discharge reed (not shown) and the suction reed (not shown). This preferably ensures good surface contact and prevents leakage. Alsc, having the surfaces adjacent the discharge and suction reeds respectively made from metal preferably increases reliability, for example due to the metal surface better withstanding the reciprocating reed movements
Figure 8 shows a valve plate structure 800, comprising two plates 801 and 802.
Plate 801 is made of thermally insulating material, while plate 802 is made of metal to provide strength. During the compression cycle, the surface of the valve plate structure 800 facing the cylinder bore (not shown) is made of metal, i.e. metal plate 802. This preferably prevents deformation under high pressure. The metal plate 802 in this embodiment comprises a raised region 803 around discharge orifice 804. When assembled, the raised region 803 is received in a corresponding opening 805 formed in the insulating material plate 801. This preferably enhances the reliability, for example due to the metal surface of the raised region 803 better withstanding the reciprocating reed movements. A flat surface finish of the thermally insulating material inlet 802 is again preferably ensured. It will be appreciated that by having the metal surface of the raised region 803, in use, adjacent the discharge reed (not shown) preferably ensures good surface contact and prevents leakage and may provide improved reliability. Plates 801 and 802 can be assembled by for example, but not limited fo, press fitting, injection molding, induction heating, bonding adhesive, ultrasonic welding etc. Also, in use, the metal plate 802 and the raised region 803 are thus in contact with the suction reed (not shown) and the discharge reed (not shown) respectively. This preferably ensures good surface contact and prevents leakage. Also, having the surfaces adjacent the discharge and suction reeds respectively made from metal preferably increases reliability, for example due to the metal surface better withstanding the reciprocating reed movements
Figure 9 shows a valve plate structure 900, with metal coatings 902, 804 on both surfaces of a thermally insulating material plate 906. This preferably ensures good surface contact and prevents leakage. Also, having the surfaces adjacent the discharge and suction reeds respectively made from metal preferably increases reliability, for example due to the metal surface better withstanding the reciprocating reed movements.
Alternatively, the coating could be done on either side of the thermally insulated valve plate. The metal coating may be formed using various techniques understood in the ar, including, but not limited to, vapor deposition, spray coating, electroless piating.
in the example embodiments described, the thermally insulating material may include, but is not limited to, engineering plastics such as Polybutylene terephthalate (PBT) and Polyetherimide (PEI), Liguid Crystal Polymer (LCP), Polysther ether ketone (PEEK), Polyphenylene Sulphide (PPS) etc. The metal used in the example embodiments described may include, but is not limited to cast/sintered iron.
The embodiments described can provide a hybrid valve plate structure in which a thermal barrier provided by respective materials, of thermally insulating characteristics, can improve the thermal insulation such that the suction gas temperature in the compressor may be reduced. Since a reduction in the suction gas temperature decreases its specific volume and increases the mass flow rate of the refrigerant, this can lead to improved compressor efficiency due to an increase in cooling performance. ft will be appreciated by a person skilled in the art that numerous variations and/or modifications may be made to the present invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects to pe iliustrative and not restrictive,
Claims (1)
1. A valve plate for a compressor, the valve plate having a thermally insulating capability for thermally insulating a suction muffler of the compressor from a discharge pienum in a cylinder head of the compressor.
2. The vaive plate as claimed in claim 1, comprising a first plate element made from thermally insulating material and a second plate element made from metal. 3 The valve plate as claimed in claim 2, wherein the first and second plate elements are joint by one or more of a group consisting of press-fitiing, injection molding, induction heating, bonding adhesive, and ultrasonic welding.
4. The vaive plate as claimed in claims 2 or 3; wherein the first plate element is disposed to face the discharge plenum.
5. The valve plate as claimed in claim 2, further comprising a third plate element made from metal, and the first plate element is sandwiched between the first and second plate elements.
8. The valve plate as claimed in claim 5, wherein the first, second and third plate elements are joint by one or more of a group consisting of press-fitting, ~ injection molding, induction heating, bonding adhesive, and ultrasonic welding.
7. The valve plate as claimed in claim 2, wherein the first plate element is configured to be received in a recess formed in the second plate element. 8, The valve plate as claimed in claim 7, wherein the recess is formed around a suction orifice in the second plate element. 9, The valve plate as claimed in claim 2, wherein the second plate element comprises a raised portion around a discharge orifice in the second plate element, and the first plate element comprises an opening for receiving the raised portion.
10. The vaive plate as claimed in claim 1, comprising a first plate element made from thermally insulating material and a metal coating on one or both sides of the first plate.
11. A compressor comprising a valve plate as claimed in any one of the preceding claims.
12. A method of thermal insulation applied in a compressor, comprising using a valve plate having a thermally insulating capability for thermally insulating a suction muffler of the compressor from a discharge plenum in a cylinder head of the COMprassor.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG2011039716A SG185858A1 (en) | 2011-06-01 | 2011-06-01 | A valve plate for a compressor |
CN2012800019878A CN103003570A (en) | 2011-06-01 | 2012-05-30 | A valve plate for a compressor |
PCT/SG2012/000189 WO2012166051A1 (en) | 2011-06-01 | 2012-05-30 | A valve plate for a compressor |
US13/809,702 US20130108493A1 (en) | 2011-06-01 | 2012-05-30 | Valve plate for a compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG2011039716A SG185858A1 (en) | 2011-06-01 | 2011-06-01 | A valve plate for a compressor |
Publications (1)
Publication Number | Publication Date |
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SG185858A1 true SG185858A1 (en) | 2012-12-28 |
Family
ID=47259626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG2011039716A SG185858A1 (en) | 2011-06-01 | 2011-06-01 | A valve plate for a compressor |
Country Status (4)
Country | Link |
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US (1) | US20130108493A1 (en) |
CN (1) | CN103003570A (en) |
SG (1) | SG185858A1 (en) |
WO (1) | WO2012166051A1 (en) |
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WO2017191228A1 (en) | 2016-05-05 | 2017-11-09 | Arcelik Anonim Sirketi | A hermetic compressor with increased performance |
WO2017191229A1 (en) | 2016-05-05 | 2017-11-09 | Arcelik Anonim Sirketi | A hermetic compressor with increased performance |
WO2017194516A1 (en) | 2016-05-10 | 2017-11-16 | Arcelik Anonim Sirketi | A hermetic compressor with improved sealing |
DE102016215972A1 (en) | 2016-08-25 | 2018-03-01 | Ford Global Technologies, Llc | A fuel supply system, internal combustion engine and method for supplying an internal combustion engine with an LPG fuel |
CN106286230B (en) * | 2016-10-17 | 2018-10-19 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor and its valve plate |
CN106762669A (en) * | 2017-01-24 | 2017-05-31 | 广东美芝制冷设备有限公司 | Compressor |
TR201717699A2 (en) | 2017-11-10 | 2019-05-21 | Arcelik As | HERMETIC COMPRESSOR WITH IMPROVED SEALING |
WO2020015901A1 (en) | 2018-07-19 | 2020-01-23 | Arcelik Anonim Sirketi | A cylinder head of a hermetic reciprocating compressor |
WO2020015900A1 (en) | 2018-07-19 | 2020-01-23 | Arcelik Anonim Sirketi | An insulation cap |
DE102019118653A1 (en) * | 2019-07-10 | 2021-01-14 | Wabco Europe Bvba | Piston compressor of a compressed air supply system in motor vehicles |
MX2022009963A (en) * | 2020-02-14 | 2022-09-19 | Nidec Global Appliance Brasil Ltda | Alternative compressor head arrangement. |
CN112392692B (en) * | 2020-10-26 | 2023-03-17 | 杭州钱江制冷压缩机集团有限公司 | A kind of compressor |
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---|---|---|---|---|
US4701114A (en) * | 1986-07-25 | 1987-10-20 | American Standard Inc. | Compressor suction gas heat shield |
KR0156720B1 (en) * | 1995-07-27 | 1999-03-20 | 김광호 | Reciprocating compressor |
JP4020986B2 (en) * | 1996-01-23 | 2007-12-12 | 松下冷機株式会社 | Hermetic electric compressor |
US6553893B2 (en) * | 2000-03-31 | 2003-04-29 | Respironics, Inc. | Piston assembly for reducing the temperature of a compressor cup seal |
BRPI0505717B1 (en) * | 2005-12-16 | 2020-03-10 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda | HERMETIC COMPRESSOR WITH INTERNAL THERMAL INSULATION |
KR101463255B1 (en) * | 2008-08-20 | 2014-11-18 | 한라비스테온공조 주식회사 | Gasket for swash plate type compressor |
US8207261B2 (en) * | 2009-03-25 | 2012-06-26 | E.I. Du Pont De Nemours And Company | Plastic articles, optionally with partial metal coating |
-
2011
- 2011-06-01 SG SG2011039716A patent/SG185858A1/en unknown
-
2012
- 2012-05-30 CN CN2012800019878A patent/CN103003570A/en active Pending
- 2012-05-30 US US13/809,702 patent/US20130108493A1/en not_active Abandoned
- 2012-05-30 WO PCT/SG2012/000189 patent/WO2012166051A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2012166051A1 (en) | 2012-12-06 |
US20130108493A1 (en) | 2013-05-02 |
CN103003570A (en) | 2013-03-27 |
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