WO2005033518A1 - Scroll compressor with offset scroll members - Google Patents
Scroll compressor with offset scroll members Download PDFInfo
- Publication number
- WO2005033518A1 WO2005033518A1 PCT/US2004/016356 US2004016356W WO2005033518A1 WO 2005033518 A1 WO2005033518 A1 WO 2005033518A1 US 2004016356 W US2004016356 W US 2004016356W WO 2005033518 A1 WO2005033518 A1 WO 2005033518A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- scroll
- scroll member
- offset
- wraps
- torque
- Prior art date
Links
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0269—Details concerning the involute wraps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Definitions
- This invention relates to forming a drive center of the scroll members to be offset from the origin of the wraps, to reduce or eliminate torque reversal.
- Scroll compressors are becoming widely utilized in refrigerant compression applications.
- a pair of scroll members each have a base and a generally spiral wrap interfitting to define compression chambers.
- One of the two scroll members is caused to orbit relative to the other, and as a result of this action, the compression chambers are reduced in volume, thereby compressing an entrapped refrigerant.
- An anti-rotation coupling facilitates the orbiting movement of the orbiting scroll.
- scroll wraps were formed as an involute of a circle. More recently, more complex shapes involving a combination of curves, involutes, and other shapes have been utilized to form a so-called “hybrid wrap.” Each type of wrap, including traditional involutes of circles, is generated from an origin point which has typically also been the drive center of the scroll member.
- Hybrid wraps provide a variety of improvements to the operation and efficiency of a scroll compressor.
- one challenge raised by a hybrid wrap is that they may sometimes generate torque reversal in the anti-rotation coupling.
- torque reversal in the anti-rotation coupling may sometimes generate torque reversal in the anti-rotation coupling.
- the orbiting scroll typically has a boss extending downwardly which receives a drive bearing. An eccentric from the drive shaft extends upwardly into this drive bearing.
- the drive center of the orbiting scroll could be defined as the center of this boss or bearing.
- the origin upon which the orbiting scroll wrap is generated has been offset from this drive center to result in a smaller housing size.
- the non-orbiting scroll is also offset in the same direction and by the same amount relative to its drive axis, which is typically the center of the drive shaft.
- this technique has been proposed to achieve a smaller housing size, and as often as not, would actually increase the torque reversal problem mentioned above. Also, it is not believed this technique has been proposed on a hybrid wrap.
- the torque versus drive angle amounts are plotted.
- a designer looks for the extremes in this torque function.
- An offset is defined to eliminate these extremes.
- the designer can determine the direction in which to design the offset.
- the eccentric is spaced in a particular direction relative to the axis of the drive shaft. It is this direction in which the offset of the orbiting scroll wrap relative to its drive axis should be made. If the selected point is a negative torque point, then one would move the origin of the orbiting wrap more towards the shaft center. On the other hand, if the highest torque point is selected, then you would move the origin of the orbiting wrap away from the shaft center at that location.
- Figure 1 is a cross-sectional view through a scroll compressor.
- Figure 2 shows a top view of the orbiting scroll of the inventive scroll compressor.
- Figure 3 is a top view of a fixed scroll.
- Figure 4 plots the torque versus drive angle or shaft rotation for both a non-offset scroll and a scroll incorporating the present invention.
- the scroll compressor 20 incorporates an orbiting scroll 22 having a spiral wrap 23 and a non-orbiting scroll 24 having its own wrap 25.
- the orbiting scroll 22 incorporates a downwardly extending boss 26 which carries a drive bearing 28.
- the drive bearing 28 is received on an eccentric pin 30 extending upwardly from a drive shaft 32.
- the eccentric pin 30 is eccentric relative to the central axis of the drive shaft 32.
- An Oldham coupling 31 prevents relative rotation of the orbiting scroll 22, thus causing it to undergo an orbital type motion under the influence of the drive bearing 28 moving about the eccentric radius of the eccentric pin 30.
- the Oldham coupling 31 prevents the orbiting scroll 22 from rotating under the influence of a torque which is generated by fluid pressures within the compression chambers.
- the orbiting scroll 22 has been modified to reduce or eliminate torque reversal.
- the geometric center or origin O of the wrap 23 is formed to be spaced from the drive center D by a small offset.
- the drive center D is generally the center axis of the boss 26 or the bearing 28 for the orbiting scroll.
- the fixed scroll has its drive axis, which is the center of the drive shaft 32, offset from the origin 0 of its wrap 25.
- Figure 4 shows graphically how one would achieve a desired offset.
- the original plot of the torque versus the angle of shaft rotation has a highest point Xi and a lowest point X 2 .
- the torque is below 0, and thus there would be torque reversal.
- the torque reversal occurs over approximately 100° of rotation.
- the scroll designer would look at this plot and select an extreme point, as an example X 2 .
- X 2 occurs at approximately 286° of rotation.
- the eccentric pin 30 extends in a certain direction relative to the central axis of the drive shaft 32. One would move the origin O from the drive center of the orbiting scroll in that same direction to reduce the torque fluctuation, and eliminate negative torque.
- the drive center would be moved toward the shaft center to reduce torque. If instead the designer was looking to eliminated the higher torque point X ls then the center of the boss or the drive center of the orbiting scroll would be moved away from the shaft center in the direction occurring at that drive angle. Typically, either movement would result in a generally similar offset between the origin O and center D for the orbiting scroll.
- the non-orbiting scroll would also be formed to have the same offset direction and magnitude. pi] As shown in Figure 4, with the offset a new torque function would occur across shaft rotation with a highest point Yi much reduced from the prior highest point Xi, and a point Y 2 generally associated with the prior X 2 . Notably, the offset has eliminated torque reversal, and greatly smoothed out any fluctuations in the torque across the shaft rotation range.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04753226A EP1633981A1 (en) | 2003-05-28 | 2004-05-24 | Scroll compressor with offset scroll members |
JP2006514944A JP2006526113A (en) | 2003-05-28 | 2004-05-24 | Scroll compressor having offset scroll member |
AU2004278655A AU2004278655B2 (en) | 2003-05-28 | 2004-05-24 | Scroll compressor with offset scroll members |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/447,077 | 2003-05-28 | ||
US10/447,077 US6736622B1 (en) | 2003-05-28 | 2003-05-28 | Scroll compressor with offset scroll members |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005033518A1 true WO2005033518A1 (en) | 2005-04-14 |
Family
ID=32298341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/016356 WO2005033518A1 (en) | 2003-05-28 | 2004-05-24 | Scroll compressor with offset scroll members |
Country Status (8)
Country | Link |
---|---|
US (1) | US6736622B1 (en) |
EP (1) | EP1633981A1 (en) |
JP (1) | JP2006526113A (en) |
KR (1) | KR100743795B1 (en) |
CN (1) | CN100439714C (en) |
AU (1) | AU2004278655B2 (en) |
MY (1) | MY137925A (en) |
WO (1) | WO2005033518A1 (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3693041B2 (en) * | 2002-06-17 | 2005-09-07 | ダイキン工業株式会社 | Scroll compressor |
US10683865B2 (en) | 2006-02-14 | 2020-06-16 | Air Squared, Inc. | Scroll type device incorporating spinning or co-rotating scrolls |
CN101389828B (en) * | 2006-02-23 | 2011-05-11 | 松下电器产业株式会社 | Scroll expansion machine and refrigeration cycle apparatus |
US11047389B2 (en) | 2010-04-16 | 2021-06-29 | Air Squared, Inc. | Multi-stage scroll vacuum pumps and related scroll devices |
KR101059880B1 (en) * | 2011-03-09 | 2011-08-29 | 엘지전자 주식회사 | Scroll compressor |
KR101225993B1 (en) | 2011-07-01 | 2013-01-28 | 엘지전자 주식회사 | Scroll compressor |
US20130232975A1 (en) | 2011-08-09 | 2013-09-12 | Robert W. Saffer | Compact energy cycle construction utilizing some combination of a scroll type expander, pump, and compressor for operating according to a rankine, an organic rankine, heat pump, or combined organic rankine and heat pump cycle |
WO2013116869A1 (en) | 2012-02-02 | 2013-08-08 | Transenterix, Inc. | Mechanized multi-instrument surgical system |
JP5506839B2 (en) * | 2012-02-29 | 2014-05-28 | 日立アプライアンス株式会社 | Scroll compressor and air conditioner |
KR101447039B1 (en) * | 2012-03-07 | 2014-10-06 | 엘지전자 주식회사 | Scroll compressor |
KR101462940B1 (en) * | 2012-03-07 | 2014-11-19 | 엘지전자 주식회사 | Scroll compressor |
KR101447038B1 (en) * | 2012-03-07 | 2014-10-06 | 엘지전자 주식회사 | Scroll compressor |
US10508543B2 (en) | 2015-05-07 | 2019-12-17 | Air Squared, Inc. | Scroll device having a pressure plate |
KR102487906B1 (en) * | 2016-04-26 | 2023-01-12 | 엘지전자 주식회사 | Scroll compressor |
US10865793B2 (en) | 2016-12-06 | 2020-12-15 | Air Squared, Inc. | Scroll type device having liquid cooling through idler shafts |
US10400771B2 (en) | 2016-12-09 | 2019-09-03 | Air Squared, Inc. | Eccentric compensating torsional drive system |
KR102385789B1 (en) * | 2017-09-01 | 2022-04-13 | 삼성전자주식회사 | Scroll compressor |
JP6956127B2 (en) * | 2018-03-27 | 2021-10-27 | 株式会社豊田自動織機 | Scroll compressor |
CN112119219B (en) | 2018-05-04 | 2022-09-27 | 空气平方公司 | Liquid cooling of fixed and orbiting scroll compressors, expanders or vacuum pumps |
US20200025199A1 (en) | 2018-07-17 | 2020-01-23 | Air Squared, Inc. | Dual drive co-rotating spinning scroll compressor or expander |
US11067080B2 (en) | 2018-07-17 | 2021-07-20 | Air Squared, Inc. | Low cost scroll compressor or vacuum pump |
US11530703B2 (en) | 2018-07-18 | 2022-12-20 | Air Squared, Inc. | Orbiting scroll device lubrication |
JP6956131B2 (en) * | 2019-03-28 | 2021-10-27 | 株式会社豊田自動織機 | Scroll compressor |
US11473572B2 (en) | 2019-06-25 | 2022-10-18 | Air Squared, Inc. | Aftercooler for cooling compressed working fluid |
US11898557B2 (en) | 2020-11-30 | 2024-02-13 | Air Squared, Inc. | Liquid cooling of a scroll type compressor with liquid supply through the crankshaft |
US11885328B2 (en) | 2021-07-19 | 2024-01-30 | Air Squared, Inc. | Scroll device with an integrated cooling loop |
KR20230174103A (en) | 2022-06-20 | 2023-12-27 | 이당훈 | Combustion catalyst supply method and system for inlet side for combustion promotion of internal combustion engine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4477239A (en) * | 1982-10-12 | 1984-10-16 | Sanden Corporation | Scroll type fluid displacement apparatus with offset wraps for reduced housing diameter |
US4904170A (en) * | 1987-08-21 | 1990-02-27 | Hitachi, Ltd. | Scroll-type fluid machine with different terminal end wrap angles |
US5458471A (en) * | 1992-08-14 | 1995-10-17 | Ni; Shimao | Scroll-type fluid displacement device having high built-in volume ratio and semi-compliant biasing mechanism |
US5938417A (en) * | 1995-12-13 | 1999-08-17 | Hitachi, Ltd. | Scroll type fluid machine having wraps formed of circular arcs |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5537537A (en) | 1978-09-09 | 1980-03-15 | Sanden Corp | Volume type liquid compressor |
JPS5551987A (en) | 1978-10-12 | 1980-04-16 | Sanden Corp | Positive displacement fluid compressor |
JPH0610856A (en) | 1992-06-29 | 1994-01-21 | Mitsubishi Heavy Ind Ltd | Scroll fluid device |
US5456471A (en) * | 1992-08-18 | 1995-10-10 | Macdonald; Donald K. | Golf practice apparatus and fabricating process |
US5318424A (en) * | 1992-12-07 | 1994-06-07 | Carrier Corporation | Minimum diameter scroll component |
-
2003
- 2003-05-28 US US10/447,077 patent/US6736622B1/en not_active Expired - Lifetime
-
2004
- 2004-05-20 MY MYPI20041924A patent/MY137925A/en unknown
- 2004-05-24 AU AU2004278655A patent/AU2004278655B2/en not_active Ceased
- 2004-05-24 WO PCT/US2004/016356 patent/WO2005033518A1/en active Application Filing
- 2004-05-24 KR KR1020057022494A patent/KR100743795B1/en not_active IP Right Cessation
- 2004-05-24 EP EP04753226A patent/EP1633981A1/en not_active Withdrawn
- 2004-05-24 CN CNB2004800145274A patent/CN100439714C/en not_active Expired - Fee Related
- 2004-05-24 JP JP2006514944A patent/JP2006526113A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4477239A (en) * | 1982-10-12 | 1984-10-16 | Sanden Corporation | Scroll type fluid displacement apparatus with offset wraps for reduced housing diameter |
US4904170A (en) * | 1987-08-21 | 1990-02-27 | Hitachi, Ltd. | Scroll-type fluid machine with different terminal end wrap angles |
US5458471A (en) * | 1992-08-14 | 1995-10-17 | Ni; Shimao | Scroll-type fluid displacement device having high built-in volume ratio and semi-compliant biasing mechanism |
US5938417A (en) * | 1995-12-13 | 1999-08-17 | Hitachi, Ltd. | Scroll type fluid machine having wraps formed of circular arcs |
Also Published As
Publication number | Publication date |
---|---|
KR100743795B1 (en) | 2007-07-30 |
CN100439714C (en) | 2008-12-03 |
US6736622B1 (en) | 2004-05-18 |
AU2004278655A1 (en) | 2005-04-14 |
EP1633981A1 (en) | 2006-03-15 |
AU2004278655B2 (en) | 2009-08-13 |
MY137925A (en) | 2009-03-31 |
CN1820144A (en) | 2006-08-16 |
KR20060020640A (en) | 2006-03-06 |
JP2006526113A (en) | 2006-11-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6736622B1 (en) | Scroll compressor with offset scroll members | |
KR0125462B1 (en) | Scroll type fluid machine | |
JP4310960B2 (en) | Scroll type fluid machinery | |
JPH0372839B2 (en) | ||
EP2813706B1 (en) | Scroll compressor | |
JP4505196B2 (en) | Scroll compressor | |
CA1333065C (en) | Scroll apparatus with modified scroll profile | |
US5090882A (en) | Rotary fluid machine having hollow vanes and refrigeration apparatus incorporating the rotary fluid machine | |
JPWO2005038256A1 (en) | Scroll compressor | |
EP1515046B1 (en) | Method of suppressing noise in a scroll compressor | |
US4927341A (en) | Scroll machine with relieved flank surface | |
JP6763225B2 (en) | Scroll compressor | |
US6149411A (en) | Variable flank relief for scroll wraps | |
KR100313895B1 (en) | scroll type compressor | |
JP7377895B2 (en) | Scroll compressor and method for compressing gas fluid with scroll compressor | |
JP2001173584A (en) | Scroll compressor | |
KR100313894B1 (en) | scroll type compressor | |
CN212389517U (en) | Compressor | |
JP3427330B2 (en) | Scroll compressor scroll | |
JP3377889B2 (en) | Machine for transferring working fluid | |
JP2004019620A (en) | Scroll compressor | |
JPH04175483A (en) | Scroll compressor | |
JP3243069B2 (en) | Fluid compressor | |
KR100750303B1 (en) | Scroll compressor | |
JPH11264384A (en) | Displacement fluid machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004278655 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020057022494 Country of ref document: KR Ref document number: 2006514944 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20048145274 Country of ref document: CN |
|
REEP | Request for entry into the european phase |
Ref document number: 2004753226 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004753226 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2004278655 Country of ref document: AU Date of ref document: 20040524 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2004278655 Country of ref document: AU |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057022494 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2004753226 Country of ref document: EP |