EP0468605A1 - Spiralverdichter - Google Patents
Spiralverdichter Download PDFInfo
- Publication number
- EP0468605A1 EP0468605A1 EP91250153A EP91250153A EP0468605A1 EP 0468605 A1 EP0468605 A1 EP 0468605A1 EP 91250153 A EP91250153 A EP 91250153A EP 91250153 A EP91250153 A EP 91250153A EP 0468605 A1 EP0468605 A1 EP 0468605A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scroll
- revolving
- drive bushing
- centrifugal force
- revolving scroll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/003—Systems for the equilibration of forces acting on the elements of the machine
-
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines 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
- F01C1/0207—Rotary-piston machines or engines 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
- F01C1/0215—Rotary-piston machines or engines 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 where only one member is moving
Definitions
- the present invention relates to a scroll type fluid machinery used as a compressor, an expansion machinery and the like.
- a radius of revolution variable mechanism for varying a radius of revolution in a solar motion of a revolving scroll automatically in accordance with the variation in gas pressure and a centrifugal force applied to the revolving scroll of a scroll type compressor has been disclosed in Japanese Patent Provisional Publication No. 59-120794 (No. 120794/1984).
- an oscillating bearing 03 is fitted into a slide hole 02 bored on an upper end surface of a rotary shaft 01 so as to be slidable in a longitudinal direction but unable to rotate on its axis, and a pin 05 projecting downward from a central part of an underside of an end plate 04a of a revolving scroll 04 is inserted into this oscillating bearing 03 so as to be able to rotate relatively as shown in Fig. 5 and Fig. 6.
- a spiral wrap 06b set up on an inner surface of an end plate 06a of a stationary scroll 06 is engaged mutually with a spiral wrap 04b set up on an inner surface of the end plate 04a of the revolving scroll 04 so as to delimit a compression chamber 07.
- a numeral 08 denotes a frame
- 09 denotes a thrust bearing for supporting thrust acting on the revolving scroll 04
- 010 denotes a bearing for supporting the upper end of the rotary shaft 01
- 0 1 denotes a shaft center of a rotary shaft 01
- 0 2 denotes a center of a pin 05
- r denotes eccentricity between 0 1 and 0 2
- a denotes an inclination of a slide hole 02 with respect to the direction of eccentricity.
- the rotation is transmitted to the revolving scroll 04 through the slide hole 02, the oscillating bearing 03 and the pin 05.
- the revolving scroll 04 revolves in a solar motion while making its circular orbit with eccentricity r as a radius in a state that the rotation on its axis is checked by a mechanism for checking the rotation on its axis not shown.
- a gas is suctioned into a compression chamber 07 and moves toward the center of the spiral while the compression chamber 07 is reducing the volume thereof, the gas is compressed gradually and reaches a central chamber 012, and is discharged therefrom through a discharge port 011.
- a centrifugal force Fc is applied in an eccentric direction to the revolving scroll 04 by the revolution in a solar motion of the revolving scroll 04, and a gas force Fg acts in a direction which meets at right angles with the centrifugal force Fc by the gas pressure in the compression chamber 07.
- a composite force F of these centrifugal force Fc and gas force Fg is applied to the center 0 2 of the pin 05.
- centrifugal force Fc is expressed by the following expression (1): where, W is the weight of the revolving scroll,
- the composite force F is expressed by the following expression (2):
- the contact pressure F" is expressed by the following expression (5):
- the gist of the present invention is as described in the following items (1) and (2), as follows.
- a stationary scroll 1 consists of an end plate 1 a and a spiral wrap 1 b set up on the inner surface thereof.
- a revolving scroll 2 consists of an end plate 2a and a spiral wrap 2b set up on the inner surface thereof.
- a cylindrical boss 4 is projected at the central part of the outer surface of the end plate 2a of the revolving scroll 2, and a drive bushing 5 is fitted rotatably into the boss 4 through a bearing 6.
- a slide hole 7 is bored in the drive bushing 5, and a drive pin 9 projecting from an end surface of a rotary shaft 8 with eccentricity by r from a shaft center 0 1 thereof is fitted into the slide hole 7.
- the section of the slide hole 7 is formed into a notched circle obtained by notching a circle with a straight line which is inclined in a particular direction as shown in Fig. 2.
- the section of the eccentric drive pin 9 is also formed into a notched circle having a diameter smaller than that of above-mentioned notched circle and having a same configuration as the notched circle.
- a straight line portion 9a of the drive pin 9 comes in contact along a straight line portion 7a of the slide hole 7, and thus, the drive pin 9 may slide therealong and move in all directions within a range of a clearance between the inner peripheral surface of the slide hole 7 and the outer peripheral surface of the pin 9.
- a counter weight 10 is attached fixedly to the drive bushing 5, and the counter weight 10 generates a centrifugal force in a direction opposite to that of a centrifugal force acting on the revolving scroll 2 at the time of revolution in a solar motion thereof.
- the driving force is transmitted to the drive bushing 5 from the straight line portion 9a of the drive pin 9 through the straight line portion 7a of the slide hole 7, and transmitted further to the revolving scroll 2 through the bearing 6 and the boss 4.
- the revolving scroll 2 revolves in a solar motion while making a circular orbit with the eccentricity r as a radius and with the shaft center 0 1 of the rotary shaft 8 as the center.
- the gas taken into the compression chambers 3 is compressed gradually and reaches a central chamber 11 as the compression chambers 3 move toward the center of the spiral while reducing volumes thereof, and is discharged therefrom through a discharge port 12.
- the present invention also provides a scroll type fluid machinery in which above-described problems are solved.
- Fig. 3 and Fig. 4 show a second embodiment of the present invention.
- the axial position of the center of gravity G of the balance weight 10 is made to almost accord with the center in an axial direction of the drive bushing 5 by increasing the thickness in a vertical direction of the balance weight 10.
- the drive bushing 5 and the balance weight 10 fixed thereto also revolves in a solar motion with above-mentioned revolving motion, and a centrifugal force F acts on the balance weight 10 at the center of gravity G. Since the axial position of the center of gravity G is in accord with the center in an axial direction of the drive bushing 5 substantially, however, the moment of inclined rotation of the drive bushing 5 based on the centrifugal force F disappears or reduces remarkably.
- the axial position of the center of gravity of the balance weight is made to accord substantially with the axial center of the drive bushing as described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP195701/90 | 1990-07-24 | ||
JP19570190 | 1990-07-24 | ||
JP8996990U JPH0741843Y2 (ja) | 1990-08-28 | 1990-08-28 | スクロール型流体機械 |
JP89969/90U | 1990-08-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0468605A1 true EP0468605A1 (de) | 1992-01-29 |
EP0468605B1 EP0468605B1 (de) | 1994-11-02 |
Family
ID=26431347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91250153A Expired - Lifetime EP0468605B1 (de) | 1990-07-24 | 1991-06-11 | Spiralverdichter |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0468605B1 (de) |
KR (1) | KR960000092B1 (de) |
CN (1) | CN1020497C (de) |
AU (1) | AU634059B2 (de) |
CA (1) | CA2042203C (de) |
DE (1) | DE69104927T2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0643224A1 (de) * | 1993-09-14 | 1995-03-15 | Nippondenso Co., Ltd. | Spiralverdichter |
EP0656477A1 (de) * | 1993-12-02 | 1995-06-07 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Spiralkompressor |
US5496157A (en) * | 1994-12-21 | 1996-03-05 | Carrier Corporation | Reverse rotation prevention for scroll compressors |
AU669646B2 (en) * | 1994-05-31 | 1996-06-13 | Mitsubishi Jukogyo Kabushiki Kaisha | Scroll type fluid machine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3105714B2 (ja) * | 1993-09-03 | 2000-11-06 | 三菱重工業株式会社 | スクロ−ル型流体機械用ドライブブッシュ |
LU91082B1 (fr) * | 2004-06-04 | 2005-12-05 | Wurth Paul Sa | Dispositif pour remplacer la rigole principale d'un haut fourneau. |
US9909586B2 (en) * | 2012-03-23 | 2018-03-06 | Bitzer Kuehlmaschinenbau Gmbh | Crankshaft with aligned drive and counterweight locating features |
CN111089055A (zh) * | 2018-10-23 | 2020-05-01 | 艾默生环境优化技术(苏州)有限公司 | 涡旋压缩机 |
JP7439690B2 (ja) * | 2020-08-05 | 2024-02-28 | 株式会社デンソー | 圧縮機、圧縮機の製造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091544A2 (de) * | 1980-03-18 | 1983-10-19 | Sanden Corporation | Synchronisiervorrichtung für eine spiralförmige Fluidumverdrängermaschine |
DE3338737A1 (de) * | 1982-10-27 | 1984-05-03 | Hitachi, Ltd., Tokio/Tokyo | Stroemungsmaschine in spiralbauweise |
EP0122066A1 (de) * | 1983-03-15 | 1984-10-17 | Sanden Corporation | Verdrängermaschine nach dem Spiralprinzip mit einer Einrichtung zum Verhindern der Axial-Bewegung des Antriebslagers |
EP0365132A2 (de) * | 1988-10-18 | 1990-04-25 | Copeland Corporation | Spiralverdichter |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59120794A (ja) * | 1982-12-27 | 1984-07-12 | Mitsubishi Electric Corp | スクロ−ル圧縮機 |
-
1991
- 1991-05-09 CA CA002042203A patent/CA2042203C/en not_active Expired - Fee Related
- 1991-05-10 AU AU76452/91A patent/AU634059B2/en not_active Ceased
- 1991-06-03 CN CN91103680A patent/CN1020497C/zh not_active Expired - Fee Related
- 1991-06-11 DE DE69104927T patent/DE69104927T2/de not_active Expired - Fee Related
- 1991-06-11 EP EP91250153A patent/EP0468605B1/de not_active Expired - Lifetime
- 1991-07-24 KR KR1019910012679A patent/KR960000092B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091544A2 (de) * | 1980-03-18 | 1983-10-19 | Sanden Corporation | Synchronisiervorrichtung für eine spiralförmige Fluidumverdrängermaschine |
DE3338737A1 (de) * | 1982-10-27 | 1984-05-03 | Hitachi, Ltd., Tokio/Tokyo | Stroemungsmaschine in spiralbauweise |
EP0122066A1 (de) * | 1983-03-15 | 1984-10-17 | Sanden Corporation | Verdrängermaschine nach dem Spiralprinzip mit einer Einrichtung zum Verhindern der Axial-Bewegung des Antriebslagers |
EP0365132A2 (de) * | 1988-10-18 | 1990-04-25 | Copeland Corporation | Spiralverdichter |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN, vol. 12, no. 286 (M-727)[3133], 5th August 1988; & JP-A-63 61 786 (SHIN MEIWA IND. CO.) 17-03-1988 * |
PATENT ABSTRACTS OF JAPAN, vol. 14, no. 42 (M-925)[3985], 25th January 1990; & JP-A-1 273 890 (MATSUSHITA) 01-11-1989 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0643224A1 (de) * | 1993-09-14 | 1995-03-15 | Nippondenso Co., Ltd. | Spiralverdichter |
EP0656477A1 (de) * | 1993-12-02 | 1995-06-07 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Spiralkompressor |
US5547354A (en) * | 1993-12-02 | 1996-08-20 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Scroll compressor balancing |
AU669646B2 (en) * | 1994-05-31 | 1996-06-13 | Mitsubishi Jukogyo Kabushiki Kaisha | Scroll type fluid machine |
US5496157A (en) * | 1994-12-21 | 1996-03-05 | Carrier Corporation | Reverse rotation prevention for scroll compressors |
USRE37837E1 (en) * | 1994-12-21 | 2002-09-10 | Carrier Corporation | Reverse rotation prevention for scroll compressors |
Also Published As
Publication number | Publication date |
---|---|
AU7645291A (en) | 1992-01-30 |
DE69104927T2 (de) | 1995-03-09 |
CN1020497C (zh) | 1993-05-05 |
EP0468605B1 (de) | 1994-11-02 |
CA2042203C (en) | 1996-02-13 |
KR960000092B1 (ko) | 1996-01-03 |
KR920002929A (ko) | 1992-02-28 |
DE69104927D1 (de) | 1994-12-08 |
CA2042203A1 (en) | 1992-01-25 |
CN1058456A (zh) | 1992-02-05 |
AU634059B2 (en) | 1993-02-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5199862A (en) | Scroll type fluid machinery with counter weight on drive bushing | |
US4824346A (en) | Scroll type fluid displacement apparatus with balanced drive means | |
US5312229A (en) | Scroll type compressor having curved bearing surfaces | |
EP0489479B1 (de) | Strömungsmaschine in Spiralbauweise | |
US4475875A (en) | Scroll type fluid displacement apparatus with balance weight | |
EP0066457B1 (de) | Mechanismus der Antriebslagerung für eine umlaufende Spirale einer Verdrängermaschine vom Spiraltyp | |
EP0059925A1 (de) | Antriebsmittel für eine Fluidumverdrängungsanlage mit Exzenterspiralelementen | |
EP0078148A1 (de) | Vorgespannte Antriebseinrichtung für kreisendes, fluidverdrängendes Maschinenteil | |
US4585403A (en) | Scroll device with eccentricity adjusting bearing | |
KR0183502B1 (ko) | 스크롤형 유체기계 | |
EP0475538B1 (de) | Spiralverdrängungsanlage für Fluid | |
US5059102A (en) | Fluid scroll machine with peripherally attached counter weights and reduced thickness scroll | |
EP0468605A1 (de) | Spiralverdichter | |
AU9519298A (en) | Scroll compressor in which an eccentric bush is radially movable with being guide by a guide pin | |
EP0126238B1 (de) | Kompressor in Spiralbauart | |
US4473343A (en) | Bearing device for scroll-type compressor | |
EP0123407A1 (de) | Einrichtung zum Verhindern der Rotation für eine Verdrängermaschine mit kreisendem Kolben | |
EP0012614A1 (de) | Verbesserungen an Fluidumkompressoren mit ineinandergreifenden Spiralvorsprüngen | |
CA1222984A (en) | Drive shaft support means for fluid displacement apparatus | |
US6123527A (en) | Scroll hydraulic machine | |
JPH09250463A (ja) | スクロール型圧縮機 | |
JPH04321785A (ja) | スクロール圧縮機の可変クランク機構 | |
JPH09133086A (ja) | スクロール型圧縮機 | |
JPS58110886A (ja) | スクロ−ル流体機械 | |
EP0471425A1 (de) | Strömungsmaschine in Spiralbauweise |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
17P | Request for examination filed |
Effective date: 19920422 |
|
17Q | First examination report despatched |
Effective date: 19930511 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
ET | Fr: translation filed | ||
REF | Corresponds to: |
Ref document number: 69104927 Country of ref document: DE Date of ref document: 19941208 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20020605 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20020619 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20030610 Year of fee payment: 13 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030611 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040101 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20030611 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050228 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |