WO2010097542A1 - Compresseur frigorifique à pistons - Google Patents
Compresseur frigorifique à pistons Download PDFInfo
- Publication number
- WO2010097542A1 WO2010097542A1 PCT/FR2010/050311 FR2010050311W WO2010097542A1 WO 2010097542 A1 WO2010097542 A1 WO 2010097542A1 FR 2010050311 W FR2010050311 W FR 2010050311W WO 2010097542 A1 WO2010097542 A1 WO 2010097542A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- balancing
- compression
- discharge
- chambers
- compressor
- Prior art date
Links
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
- F04B39/0027—Pulsation and noise damping means
-
- 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
-
- 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
- F04B39/123—Fluid connections
Definitions
- the present invention relates to a piston refrigerant compressor.
- a piston refrigeration compressor comprises, in known manner, a plurality of compression units, each compression unit comprising a cylinder head comprising a refrigerant suction chamber and a refrigerant discharge chamber, a cylinder block comprising a cylinder delimiting a compression chamber and in which is slidably mounted a piston, and a valve plate interposed between the cylinder head and the cylinder block.
- the valve plate of each compression unit comprises a suction passage emerging respectively in the corresponding suction chamber and in the corresponding compression chamber, and a suction valve arranged to allow only a flow of refrigerant from the chamber suction to the compression chamber.
- each compression unit further comprises a discharge passage opening respectively into the corresponding discharge chamber and into the corresponding compression chamber, and a discharge valve arranged to allow only a flow of refrigerant from the chamber of compression. compression towards the discharge chamber.
- a compressor unit of such a compressor operates in the following manner.
- the suction valve As the piston of the cylinder block moves in the cylinder towards the cylinder head, the suction valve is moved to its closed position and the refrigerant contained in the compression chamber is compressed so that its temperature and pressure increase. As soon as the pressure in the cylinder is substantially greater than the pressure in the discharge chamber, the discharge valve is moved to its open position and the refrigerant contained in the compression chamber is discharged into the discharge chamber via the discharge passage.
- the piston refrigeration compressor as described above further comprises firstly a refrigerant dispensing device comprising a distribution duct and bypass ducts putting in communication the distribution duct and the suction chambers of the compression units. and on the other hand a refrigerant delivery device comprising a discharge pipe and bypass pipes putting in communication the discharge pipe and the discharge chambers of the compression units.
- the technical problem underlying the invention is therefore to provide a piston refrigerant compressor which is simple and economical structure, while allowing to avoid the occurrence of pressure pulsations may reduce the performance of the compressor.
- the invention relates to a piston refrigerant compressor comprising: - a crankshaft,
- each compression unit comprising a cylinder head comprising a refrigerant suction chamber and a refrigerant discharge chamber,
- a refrigerant distribution device comprising a distribution duct and bypass ducts placing the supply duct in communication with the suction chambers of the compression units; a refrigerant delivery device comprising a discharge duct; and bypass ducts communicating the discharge duct and the discharge chambers of the compression units, characterized in that the compressor further comprises pressure balancing means arranged to put the suction chambers in communication with each other. at least two compression units and / or the discharge chambers of at least two compression units.
- the presence of the pressure balancing means which directly connect the suction chambers of at least two compression units and / or the discharge chambers of at least two compression units makes it possible to reduce, on the one hand, the pressure pulsations in these suction and / or compression chambers, and secondly the pressure drops generated in the distribution and delivery devices. This results in an increase in compressor performance.
- the refrigerating compressor comprises a casing in which the crankshaft is mounted, the plurality of compression units being distributed over the periphery of the casing.
- the casing could advantageously be surrounded by a sealed outer envelope.
- the housing could form a sealed enclosure.
- each compression unit extends substantially perpendicular to the axis of the crankshaft.
- the pressure balancing means comprise at least one balancing duct arranged to place the suction chambers of at least two units of communication in communication with one another. compression, and / or at least one balancing conduit arranged to put in communication the discharge chambers of at least two compression units.
- the pressure balancing means comprise at least one balancing duct comprising a first end opening into one of the suction chambers and a second end opening into another suction chamber, and / or at least one a balancing duct comprising a first end opening into one of the discharge chambers and a second end opening into another discharge chamber.
- the pressure equalization means comprise a collection chamber and at least two balancing conduits each comprising a first end opening into one of the suction chambers and a second end opening. in the collection chamber.
- the pressure equalization means comprise a collection chamber and at least two balancing conduits each comprising a first end opening into one of the discharge chambers and a second end opening. in the collection chamber.
- At least one of the balancing ducts or each balancing duct extends outside the compressor.
- At least one of the balancing ducts or each balancing duct extends inside the compressor.
- At least one of the balancing ducts or each balancing duct is formed in the compressor casing.
- At least one of the balancing ducts or each balancing duct is a flexible or rigid tubing.
- At least one of the balancing ducts or each balancing duct has a substantially constant section.
- each compression unit further comprises a valve plate and a cylinder block delimiting a compression chamber, and the suction and delivery chambers of the cylinder head of each compression unit are each intended to be put in communication with each other. the respective compression chamber through the respective valve plate.
- the cylinder block of each compression unit comprises a cylinder in which is slidably mounted a piston in a direction substantially perpendicular to the axis of the crankshaft between an extreme suction position in which said piston is moved away from the corresponding cylinder head and an extreme discharge position in which said piston is located near the corresponding yoke.
- the compressing units placed in common by the pressure balancing means operate substantially in opposite phase.
- Figure 1 is a schematic sectional view of a compressor according to a first embodiment of the invention.
- Figures 2 to 6 are schematic views of compressors according to different embodiments of the invention.
- Figure 1 describes a piston refrigerant compressor 2 occupying a vertical position.
- the compressor according to the invention could occupy an inclined position, or a horizontal position, without its structure being significantly modified.
- the compressor 2 comprises a sealed enclosure 3 in which is mounted an electric motor 4 comprising a stator 5 in the center of which is disposed a rotor 6.
- the compressor 2 further comprises a crankshaft 7 whose upper end is integral with the rotor 6 and whose lower end is engaged in a portion 8 in the form of a sleeve integral with the compressor enclosure.
- the compressor 2 further comprises four compression units 9 (only two compression units are visible in Figure 1) regularly distributed over the circumference of the compressor chamber and extending radially from the latter.
- Each compression unit 9 comprises a yoke 11, a valve plate 12 and a cylinder block 13.
- the yoke 11 of each compression unit 9 delimits a refrigerant suction chamber 14 and a refrigerant discharge chamber 15.
- the cylinder block 13 of each compression unit 9 comprises a cylinder 16 in which is slidably mounted a piston 17 between an extreme suction position in which the piston 17 is remote from the corresponding yoke 11 and an end discharge position in which the piston 17 is located near the corresponding yoke 1 1, and a connecting rod 18 comprising a first end rotatably mounted around the crankshaft 7 and a second end rotatably mounted about an axis 19 integral with the piston 17.
- each cylinder block 13 is arranged to convert the rotary movement of the crankshaft 7 into a back and forth motion piston 17 of each cylinder block 13 inside the corresponding cylinder.
- the two pistons 17 operate in opposition of phase.
- the piston 17 belonging to one of the compression units 9 is in its extreme suction position (see the piston located on the right in FIG. 1)
- the piston 17 belonging to the other compression unit 9 is in its extreme position of discharge (see the piston located on the left in Figure 1), and vice versa.
- each compression unit 9 delimits a compression chamber 19.
- each cylinder head 1 1 The suction chamber 14 and discharge chamber 15 of each cylinder head 1 1 are each intended to be placed in communication with the corresponding compression chamber 19 via the corresponding valve plate 12.
- the valve plate 12 of each compression unit 9 comprises a suction passage 21 opening respectively into the corresponding suction chamber 14 and into the corresponding compression chamber 19, and a suction valve (not shown). in Figure 1) arranged to allow a flow of refrigerant through the suction passage 21 only from the suction chamber to the compression chamber 19.
- the valve plate 12 of each compression unit 9 also comprises a discharge passage 22 opening respectively into the corresponding discharge chamber 15 and into the corresponding compression chamber 19, and a discharge valve (not shown in FIG. 1) arranged to allow a flow of refrigerant through the discharge passage 22 only from the compression chamber to the discharge chamber.
- the compressor 2 comprises a refrigerant dispensing device 23 comprising a distribution duct 24 and bypass ducts 25 putting in communication the distribution duct 24 and the suction chambers 14 of the two compression units 9.
- the compressor 2 also comprises a refrigerant delivery device 26 comprising a discharge pipe 27 and bypass ducts 28 putting in communication the discharge pipe 27 and the discharge chambers 15 of the two compression units 9.
- the compressor 2 further comprises pressure equalization means arranged to directly communicate the suction chambers 14 of the two compression units 9.
- the pressure balancing means comprise a balancing duct 29 extending outside the chamber of the compressor and comprising a first end opening into one of the suction chambers 14 and a second end opening into the chamber. other suction chamber 14.
- the balancing duct 29 preferably has a section that is substantially constant and substantially equal to that of the distribution and discharge ducts.
- the length of the balancing duct is substantially greater than the diameter of the latter, and in particular greater than five times the diameter of the latter.
- the balancing pipe is a rigid pipe.
- the refrigerant flowing in the refrigerant dispensing device is CO2 Fig ure 2 represents a second embodiment of the invention.
- the compressor 2 comprises four compression units 9 regularly distributed over the circumference of the compressor enclosure, and the pressure equalization means comprise a first balancing duct 29 connecting the suction chambers 14. two compression units opposed to each other, and a second balancing pipe 29 connecting the suction chambers 14 of the other two compression units.
- Figure 3 shows a third embodiment of the invention.
- the compressor comprises four compression units 9 regularly distributed over the circumference of the compressor enclosure, and the pressure equalization means comprise four equalizing ducts 29 each connecting the suction chambers 14 of the compressor. two adjacent compression units.
- Figure 4 shows a fourth embodiment of the invention.
- the compressor differs from that shown in FIG. 3 in that the pressure balancing means furthermore comprise a fifth balancing electrode 29 connecting the suction chambers 14 of two units. 9 opposite to each other, and a sixth balancing ducts 29 connecting the suction chambers 14 of the two other compression units 9.
- Figure 5 shows a fifth embodiment of the invention.
- the compressor comprises four compression units 9 regularly distributed over the circumference of the compressor enclosure, and the pressure equalization means comprise a first balancing duct 29 connecting the suction chambers 14 of the compressor chamber. two adjacent compression units 9, and a second balancing duct 29 connecting the suction chambers 14 of the two other compression units.
- Figure 6 shows a sixth embodiment of the invention.
- the compressor comprises four compression units 9 regularly distributed over the circumference of the compressor enclosure, and the pressure balancing means comprise on the one hand an external connection to the compressor enclosure and delimiting a collection chamber 30, and on the other hand four balancing ducts 29 each comprising a first end opening into one of the suction chambers 14 and a second end opening into the collection chamber.
- the invention is not limited to the embodiments of this piston refrigeration compressor, described above as examples, it encompasses all the variants.
- the pressure balancing means could be arranged not to put in communication the suction chambers of at least two compression units but to put in communication the discharge chambers of at least two units. compression.
- the pressure equalizing means could also be arranged to put in communication on the one hand the suction chambers of at least two compression units, and on the other hand the delivery chambers of at least two compression units .
- the refrigerating compressor could be hermetic type.
- the enclosure 3 could be surrounded by an outer envelope.
- the compression units may not be evenly distributed over the circumference of the compressor enclosure.
- the cylinders of the compression units could be arranged in V or W.
- the compression units could furthermore not operate in opposite phase.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112010000920T DE112010000920T5 (de) | 2009-02-27 | 2010-02-24 | Kolben-KäItemittelverdichter |
CN2010800085086A CN102325998A (zh) | 2009-02-27 | 2010-02-24 | 活塞制冷压缩机 |
US13/201,383 US8512015B2 (en) | 2009-02-27 | 2010-02-24 | Piston refrigeration compressor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0951241A FR2942655B1 (fr) | 2009-02-27 | 2009-02-27 | Compresseur frigorifique a pistons |
FR09/51241 | 2009-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010097542A1 true WO2010097542A1 (fr) | 2010-09-02 |
Family
ID=41213274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2010/050311 WO2010097542A1 (fr) | 2009-02-27 | 2010-02-24 | Compresseur frigorifique à pistons |
Country Status (5)
Country | Link |
---|---|
US (1) | US8512015B2 (fr) |
CN (1) | CN102325998A (fr) |
DE (1) | DE112010000920T5 (fr) |
FR (1) | FR2942655B1 (fr) |
WO (1) | WO2010097542A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6670827B2 (ja) * | 2014-05-16 | 2020-03-25 | スリーエム イノベイティブ プロパティズ カンパニー | 一体化させたエラストマー材料を備える多孔性エラストマー材料を含む物品、並びにその製造方法 |
CN216381797U (zh) * | 2018-10-12 | 2022-04-26 | 马里奥·多林工作坊股份公司 | 往复式压缩机结构及制冷、调节或热泵系统 |
DE102021205041A1 (de) | 2021-05-18 | 2022-11-24 | Thyssenkrupp Ag | Kolbenverdichter, insbesondere Radialkolbenverdichter |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02161178A (ja) * | 1988-12-13 | 1990-06-21 | Sanyo Electric Co Ltd | 圧縮機 |
US5775885A (en) * | 1996-02-20 | 1998-07-07 | Tecumseh Products Company | Combination suction manifold and cylinder block for a reciprocating compressor |
DE10003882A1 (de) * | 2000-01-29 | 2001-08-16 | Bitzer Kuehlmaschinenbau Gmbh | Kältemittelkompressor |
EP1283364A1 (fr) * | 2000-05-17 | 2003-02-12 | Zexel Cold Systems Company | Compresseur a pistons |
EP1612419A1 (fr) * | 2003-03-28 | 2006-01-04 | Zexel Valeo Climate Control Corporation | Compresseur alternatif |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2065255U (zh) * | 1990-02-17 | 1990-11-07 | 胜利石油管理局总机械厂 | 压差补偿双作用深井抽油泵 |
US5326231A (en) * | 1993-02-12 | 1994-07-05 | Bristol Compressors | Gas compressor construction and assembly |
DE19961646C1 (de) * | 1999-12-21 | 2001-11-15 | Knorr Bremse Systeme | Schwingungsarmer, zweistufiger Tauchkolbenverdichter |
CN2581722Y (zh) * | 2002-09-28 | 2003-10-22 | 中国石油化工股份有限公司中原油田分公司采油三厂 | 一种增压注水泵 |
US20040156731A1 (en) * | 2003-02-06 | 2004-08-12 | Bond James R. | Straight-cut motor shaft with pinned eccentric |
US20050271530A1 (en) * | 2004-06-07 | 2005-12-08 | Beagle Wayne P | Compressor |
-
2009
- 2009-02-27 FR FR0951241A patent/FR2942655B1/fr not_active Expired - Fee Related
-
2010
- 2010-02-24 WO PCT/FR2010/050311 patent/WO2010097542A1/fr active Application Filing
- 2010-02-24 DE DE112010000920T patent/DE112010000920T5/de not_active Withdrawn
- 2010-02-24 CN CN2010800085086A patent/CN102325998A/zh active Pending
- 2010-02-24 US US13/201,383 patent/US8512015B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02161178A (ja) * | 1988-12-13 | 1990-06-21 | Sanyo Electric Co Ltd | 圧縮機 |
US5775885A (en) * | 1996-02-20 | 1998-07-07 | Tecumseh Products Company | Combination suction manifold and cylinder block for a reciprocating compressor |
DE10003882A1 (de) * | 2000-01-29 | 2001-08-16 | Bitzer Kuehlmaschinenbau Gmbh | Kältemittelkompressor |
EP1283364A1 (fr) * | 2000-05-17 | 2003-02-12 | Zexel Cold Systems Company | Compresseur a pistons |
EP1612419A1 (fr) * | 2003-03-28 | 2006-01-04 | Zexel Valeo Climate Control Corporation | Compresseur alternatif |
Also Published As
Publication number | Publication date |
---|---|
FR2942655A1 (fr) | 2010-09-03 |
DE112010000920T5 (de) | 2012-10-25 |
US8512015B2 (en) | 2013-08-20 |
CN102325998A (zh) | 2012-01-18 |
US20120027633A1 (en) | 2012-02-02 |
FR2942655B1 (fr) | 2013-04-12 |
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