EP1193396B1 - Pompe à vide à ailettes pour automobiles - Google Patents
Pompe à vide à ailettes pour automobiles Download PDFInfo
- Publication number
- EP1193396B1 EP1193396B1 EP01107401.0A EP01107401A EP1193396B1 EP 1193396 B1 EP1193396 B1 EP 1193396B1 EP 01107401 A EP01107401 A EP 01107401A EP 1193396 B1 EP1193396 B1 EP 1193396B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- shaft
- vane
- case
- vacuum pump
- 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.)
- Expired - Lifetime
Links
Images
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
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- 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
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- 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
- F01C21/08—Rotary pistons
-
- 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
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
Definitions
- the present invention relates to an improvement of an automotive vane-type vacuum pump.
- Fig. 11 is a side view, which is partly a sectional view, showing a part of a conventional automotive vane-type vacuum pump disclosed in, for example, International Publication No. WO00/36303 .
- Fig. 12 is a sectional view taken along the line E-E of Fig. 11 .
- the conventional automotive vane-type vacuum pump has an inlet 1, an outlet 2, and a sealed space formed by a substantially cylindrical housing 4 with a bottom and a bracket 5 that are coupled by a bolt 3, the housing 4 and the bracket 5 being made of aluminum.
- the bracket 5 rotatably supports a shaft 21 by a bearing portion 8.
- the shaft 21 is provided with a rotor 24 that is eccentrically accommodated in the housing 4 and allowed to rotate in the housing 4.
- the rotor 24 formed of aluminum is provided with vane slots 10 radially formed, and a vane 11 is retractably disposed in the vane slots 10.
- the vane 11 rotates together with the rotor 24 with the outer edge thereof slidably in contact with the inner peripheral surface of the housing 4 in an attempt to jut out radially outward from the vane slots 10 due to a centrifugal force.
- the rotor 24 and the vane 11 together draw in a fluid through the inlet 1 and forcibly feed the fluid to discharge it through the outlet 2.
- the shaft 21 is equipped with a coupling 13 so as to enable torque to be input from a vehicle.
- the rotor 24 has two axial grooves 25 in which the two fin-like protuberances 23 fit so that torque can be transmitted via the fin-like protuberances 23 and the axial grooves 25.
- the rotor 24 is integrally formed on the shaft 21 by one-piece casting, so that there is no play between the shaft main body 22 of the shaft 21 and the rotor 24.
- the rotor is integrally formed by one-piece molding by, for example, aluminum die casting or plastic molding.
- the movement of the rotor 24 and the shaft 21 in an axial direction has been restricted by the contact between the side surfaces of the rotor 24 and the housing 4 and the bracket 5. More specifically, the side surfaces of the rotor 24 slidably contact the housing 4 and the bracket 5 thereby to restrict the movement of the rotor 24 and the shaft 21 in the axial direction.
- the rotor 24, the housing 4, and the bracket 5 are all formed of the same metal, namely, aluminum. This has been presenting a problem of seizure.
- EP 1 055 823 describes the features of the preamble of claim 1.
- the present invention has been made with a view toward solving the problem mentioned above, and it is an object of the present invention to provide an automotive vane-type vacuum pump free of the problem of seizure between an axial end surface of a rotor and a case, thus permitting higher quality and reliability, and improved durability.
- an automotive vane-type vacuum pump for forcibly feeding a fluid from an inlet to an outlet, including a bottomed cylindrical case having an inlet and an outlet, a rotor eccentrically accommodated in the case, a shaft that is secured to the rotor, having both ends thereof rotatably supported by both bottom surfaces of the case, and rotates the rotor by an external driving force, and a vane that rotates slidably in contact with the inner peripheral surface of the case while moving radially in and out of the rotor as the rotor rotates, wherein the axial movement of the shaft is restricted by slidable contact between axial movement restricting stepped portions provided on both ends of the shaft and the case, and a very small gap is formed between an axial end surface of the rotor and the case.
- the shaft and the case are formed of different metals.
- an oil reservoir is provided on the axial end surface of the rotor.
- the oil reservoir is formed at the same time when the rotor is formed by one-piece molding.
- the rotor is cast integrally with the shaft by insert molding, and the shaft is provided with a slippage-proof groove in its peripheral direction.
- a lubricant groove is formed in a bearing portion of the case.
- a drive transmitting means is provided outside the bearing portion of the shaft, and the bearing portion has a length that has been set so that the drive transmitting means does not contact the case even if the bearing portion expands or contracts due to heat.
- a portion of an axial restriction flange provided on the shaft that is associated with a vane slot is cut so that it is smaller than the innermost diameter of the vane slot in a radial direction and larger than the width of the vane slot in the peripheral direction.
- Fig. 1 is a side view, which is partly a sectional view, showing a first embodiment of an automotive vane-type vacuum pump in accordance with the present invention.
- Fig. 2 is a front view of the embodiment viewed from A of Fig. 1 , partly showing the sections of a rotor and a shaft.
- Fig. 3 is a sectional view taken along the line B-B of Fig. 2 .
- the automotive vane-type vacuum pump according to the first embodiment includes a substantially cylindrical bottomed housing 4, which has an inlet 1 and an outlet 2, and a bracket 5 that covers an opening of the housing 4, the housing 4 and the bracket 5 being coupled by a bolt 3.
- the housing 4 and the bracket 5 form a sealed space of a cylindrical case 30 having bottom surfaces at its both ends.
- the housing 4 and the bracket 5 are made of aluminum.
- a shaft 21 is disposed such that it penetrates the case 30, and its both ends are rotatably supported by both bottom surfaces of the case 30.
- the shaft 21 is composed of carbon steel or alloy steel or the like.
- a side surface of the housing 4 includes a lubricating port 27.
- a lubricant is supplied through the lubricating port 27.
- the lubricating port 27 is in communication with an inner surface of the housing 4 via a shaft end of the shaft 21.
- One end of the shaft 21 that is close to the lubricating port 27 is provided with a stepped portion 28 serving as a stepped portion for restricting axial movement.
- the other end of the shaft 21 is provided with a flange 29 also serving as the stepped portion for restricting axial movement.
- the stepped portion 28 slidably contacts the inner surface of the housing 4 so that its movement to the left in Fig. 1 is restricted, while the flange 29 slidably contacts the inner surface of the bracket 5 so that its movement to the right in Fig. 1 is restricted.
- a spiral lubricant groove 21b is formed in a bearing portion of the bracket 5.
- a rotor 24 that is eccentrically accommodated in the housing 4 and able to rotate in the housing 4 is secured to the shaft 21, the rotor 24 being made of aluminum.
- a very small gap is formed between an axial end surface of the rotor 24 and the inner surface of the housing 4, and another very small gap is formed between the axial end surface of the rotor 24 and the inner surface of the bracket 5. This means that both axial end surfaces of the rotor 24 are not in contact with the housing 4 and the bracket 5 constituting the case 30.
- the rotor 24 has vane slots 10 radially arranged, and a vane 11 retractably disposed in the vane slots 10.
- the shaft 21 is equipped with a coupling 13 serving as a drive transmitting means so as to enable torque to be input from a vehicle.
- the drive transmitting means may be a gear, a sprocket, a pulley, or the like in place of the coupling 13.
- the rotor 24 is integrally formed and installed on the shaft 21 by one-piece casting, so that there is no play between a shaft main body 22 of the shaft 21 and the rotor 24.
- the rotor 24 is integrally formed by one-piece molding by, for example, casting, forging, aluminum die casting or plastic molding.
- an oil reservoir 24a is provided on an axial end surface of the rotor 24.
- the other end surface of the rotor 24 at the rear side is also provided with the oil reservoir 24a.
- the oil reservoirs 24a are formed at the same time when the rotor 24 is integrally formed as mentioned above.
- a lubricant is supplied through the lubricating port 27 to lubricate the shaft ends of the shaft 21, then the lubricant reaches the inner surface of the housing 4.
- the lubricant then gathers in the oil reservoir 24a to perform lubrication between the rotor 24 and the housing 4.
- the lubricant passes through a hollow portion of the rotor 24 to reach the other side, and gathers in the oil reservoir 24a on the other side to perform lubrication between the rotor 24 and the bracket 5.
- the lubricant gathers in the lubricant groove 21b formed in the bearing portion of to perform lubrication between the shaft 21 and the bracket 5.
- An automotive vane-type vacuum pump constructed as described above includes the bottomed cylindrical case 30 having the inlet 1 and the outlet 2, the rotor 24 eccentrically accommodated in the case 30, the shaft 21 that is secured to the rotor 24, having both ends thereof rotatably supported by both bottom surfaces of the case 30, and rotates the rotor 24 by an external driving force, and the vane 11 that rotates slidably in contact with the inner peripheral surface of the case 30 while moving in and out of the rotor 24 as the rotor 24 rotates.
- the axial movement of the shaft 21 is restricted by the slidable contact between axial movement restricting stepped portions, namely, the stepped portion 28 and the flange 29, which are provided on both ends of the shaft, and the case 30.
- a very small gap is formed between the axial end surface of the rotor 24 and the case 30. This arrangement restrains seizure from taking place between the axial end surface of the rotor 24 and the case 30, thus leading to higher quality and reliability, and improved durability.
- the shaft 21 and the case 30 are made of different metals.
- the shaft 21 is composed of carbon steel, alloy steel, or the like, while the case 30 is composed of aluminum. Hence, seizure between the axial end surface of the rotor 24 and the case 30 can be further restrained, resulting in higher quality and improved durability.
- the oil reservoirs 24a are provided on the axial end surfaces of the rotor 24. Therefore, seizure between the axial end surface of the rotor and the case can be further restrained, permitting higher quality and improved durability to be achieved. Moreover, there will be less friction, allowing rotational load to be reduced.
- the oil reservoirs 24a are formed at the same time when the rotor 24 is fabricated by one-piece molding. Hence, the oil reservoirs 24a can be easily formed, permitting a reduction in cost.
- the lubricant groove formed in the bearing portion of the case restrains wear on the shaft, so that durability can be improved, and friction can be reduced with resultant reduced rotational load.
- Fig. 4 is a rear view of a rotor and a shaft of a second embodiment of the automotive vane-type vacuum pump in accordance with the present invention.
- Fig. 5 is a side view showing the section of the rotor, taken along the line C-C of Fig. 4 .
- Fig. 6 is a front view of the rotor and the shaft.
- a rotor 24 is integrally cast with a shaft 21 by insert molding, as in the case of the first embodiment.
- the shaft 21 is, however, provided with a slippage-proof groove 24c formed along the full periphery thereof to prevent slipping off. This arrangement securely prevents the shaft 21 from coming off the rotor 24, leading to higher reliability.
- the slippage-proof groove 24c may not necessarily be formed over the full periphery.
- the same advantage can be obtained by, for example, intermittently forming the slippage-proof groove 24c in the peripheral direction.
- Fig. 7 is a rear view showing a rotor and a shaft of a third embodiment of the automotive vane-type vacuum pump in accordance with the present invention.
- Fig. 8 is a side view showing the section of the rotor, taken along the line D-D of Fig. 7 .
- Fig. 9 is a front view of the rotor and the shaft.
- a shaft 21 in this embodiment is provided with an axial restriction flange 29 for restricting the lateral movement (in Fig. 8 ) of the shaft 21, as in the case of the first embodiment. Furthermore, in the third embodiment, the portion of the axial movement restriction flange 29 that is associated with a vane slot 10 is provided with a cutout 29a that is smaller than the innermost diameter of the vane slot 10 in a radial direction and larger than the width of the vane slot 10 in the peripheral direction.
- a vane slot is integrally cast with the shaft 21 by insert molding, then finished by machining.
- the provision of the cutout 29a permits easy insertion and removal of a cutting tool in an axial direction. This allows easier machining of the vane slot 10, allowing reduced cost to be achieved.
- Fig. 10 is a side view, which is partly a sectional view, showing an essential section of a fourth embodiment of the automotive vane-type vacuum pump in accordance with the present invention.
- a gear 31 serving as a drive transmitting means is secured, by shrink fitting, outside a bearing portion 21a of a shaft 21.
- the length of the bearing portion 21a is set so that the gear 31 will not contact a bracket 5 even if the bearing portion 21a expands or contracts due to heat.
- an axial length Y of the bearing portion 21a is set such that a difference in thermal expansion coefficient between the bracket 5 and the shaft 21 does not cause the length Y to relatively become smaller than a thickness X of the bracket 5.
- the automotive vane-type vacuum pump for forcibly feeding a fluid from an inlet to an outlet includes a bottomed cylindrical case having an inlet and an outlet, a rotor eccentrically accommodated in the case, a shaft that is secured to the rotor, having both ends thereof rotatably supported by both bottom surfaces of the case, and rotates the rotor by an external driving force, and a vane that rotates slidably in contact with the inner peripheral surface of the case while moving in and out of the rotor as the rotor rotates, wherein the axial movement of the shaft is restricted by slidable contact between axial movement restricting stepped portions provided on both ends of the shaft and the case, and a very small gap is formed between an axial end surface of the rotor and the case.
- This arrangement restrains seizure from taking place between the axial end surfaces of the rotor and the case, leading to higher quality and reliability, and improved durability.
- the shaft and the case are formed of different metals. This will further restrains seizure from taking place between the axial end surfaces of the rotor and the case, resulting in higher quality and improved durability.
- An oil reservoir is provided on the axial end surface of the rotor. This will further restrain the seizure from taking place between the axial end surface of the rotor and the case, permitting higher quality and improved durability to be achieved. Moreover, there will be less friction, allowing rotational load to be reduced.
- the oil reservoir is formed at the same time when the rotor is fabricated by casting or forging. Hence, the oil reservoir can be easily formed, permitting a reduction in cost.
- the lubricant groove formed in the bearing portion of the case restrains wear on the shaft, so that durability can be improved, and friction can be reduced, with resultant reduced rotational load.
- a drive transmitting means is provided outside the bearing portion of the shaft, and the bearing portion has a length that has been set so that the drive transmitting means does not contact the case even if the bearing portion expands or contracts due to heat. Therefore, the rotation of the bearing portion will not be restricted by being caught between a shaft main body and a drive transmitting means, allowing higher reliability to be achieved.
- a portion of an axial restriction flange provided on the shaft that is associated with a vane slot is cut so that it is smaller than the innermost diameter of the vane slot in a radial direction and larger than the width of the vane slot in the peripheral direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Claims (8)
- Pompe à vide automobile de type à palettes destinée à l'alimentation forcée d'un fluide d'une admission (1) à un refoulement (2), comprenant :un carter cylindrique à fond (30) comportant l'admission (1) et le refoulement (2) ;un rotor (24) logé excentriquement dans le carter (30) ;un arbre (21) qui est fixé au rotor (24), ayant ses deux extrémités supportées en rotation par les deux surfaces de fond du carter (30), et qui fait tourner le rotor (24) par une force d'entraînement externe ; etune palette (11) qui tourne de façon coulissante en contact avec la surface périphérique interne du carter (30) tout en se déplaçant radialement dans et hors du rotor (24) à mesure que le rotor (24) tourne,caractérisée en ce que le mouvement axial de l'arbre est restreint par un contact coulissant entre des portions étagées de restriction de mouvement axial (28, 29) fournies sur les deux extrémités de l'arbre (21) et du carter (30), et un très petit écartement est formé entre une surface d'extrémité axiale du rotor (24) et le carter (30).
- Pompe à vide automobile de type à palettes selon la revendication 1, caractérisée en ce que l'arbre (21) et le carter (30) sont formés de métaux différents.
- Pompe à vide automobile de type à palettes selon la revendication 1 ou 2, caractérisée en ce qu'un réservoir d'huile (24a) est fourni sur la surface d'extrémité axiale du rotor (24).
- Pompe à vide automobile de type à palettes selon la revendication 3, caractérisée en ce que le réservoir d'huile (24a) est formé en même temps que le rotor (24) est formé par moulage monobloc.
- Pompe à vide automobile de type à palettes selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le rotor (24) est coulé solidairement avec l'arbre (21) par moulage par insertion, et l'arbre (21) est pourvu d'une rainure antipatinage (24c) dans sa direction périphérique.
- Pompe à vide automobile de type à palettes selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'une rainure de lubrification (21b) est formée dans une portion portante du carter (30).
- Pompe à vide automobile de type à palettes selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'un moyen de transmission d'entraînement est fourni en dehors de la portion portante de l'arbre (21), et la portion portante a une longueur qui a été établie de sorte que le moyen de transmission d'entraînement n'entre pas en contact avec le carter (30) même si la portion portante se dilate ou se contracte en raison de la chaleur.
- Pompe à vide automobile de type à palettes selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'une portion d'une bride de restriction d'un mouvement axial fournie sur l'arbre (21) qui est associée à une encoche de palette (10) est découpée de façon à être plus petite que le diamètre le plus intérieur de l'encoche de palette (10) dans une direction radiale et plus grande que la largeur de l'encoche de palette (10) dans la direction périphérique.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000301962 | 2000-10-02 | ||
JP2000301962A JP3672237B2 (ja) | 2000-10-02 | 2000-10-02 | 自動車用ベーン式真空ポンプ |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1193396A2 EP1193396A2 (fr) | 2002-04-03 |
EP1193396A3 EP1193396A3 (fr) | 2003-07-30 |
EP1193396B1 true EP1193396B1 (fr) | 2015-03-11 |
Family
ID=18783409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01107401.0A Expired - Lifetime EP1193396B1 (fr) | 2000-10-02 | 2001-03-26 | Pompe à vide à ailettes pour automobiles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1193396B1 (fr) |
JP (1) | JP3672237B2 (fr) |
KR (1) | KR100385682B1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006042493A1 (fr) * | 2004-10-22 | 2006-04-27 | Luk Automobilitechnik Gmbh & Co. Kg | Pompe |
JP5366884B2 (ja) * | 2010-05-21 | 2013-12-11 | 三菱電機株式会社 | ベーンロータリー型圧縮機 |
DE112012002375A5 (de) * | 2011-06-07 | 2014-02-27 | Ixetic Bad Homburg Gmbh | Rotor für eine Flügelzellenpumpe |
DE102015216104B3 (de) | 2015-08-24 | 2016-12-29 | Magna Powertrain Bad Homburg GmbH | Vakuumpumpe in Leichtbauweise |
JPWO2017094639A1 (ja) * | 2015-11-30 | 2018-09-13 | 株式会社ヴァレオジャパン | ベーン型圧縮機 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2312655A (en) * | 1941-05-22 | 1943-03-02 | Pump Engineering Service Corp | Pump |
US3819309A (en) * | 1972-10-11 | 1974-06-25 | Gen Motors Corp | Means for altering the effective displacement of an axial vane compressor |
US5265457A (en) * | 1990-02-16 | 1993-11-30 | Sumitomo Electric Industries, Ltd. | Method of forming an oil groove on the end surface of a rotor of an aluminum alloy |
KR960002186U (ko) * | 1994-06-02 | 1996-01-19 | 로타리 압축기 | |
JPH1054382A (ja) * | 1996-08-14 | 1998-02-24 | Mitsubishi Electric Corp | ベーン式真空ポンプ |
DE69839159T2 (de) * | 1998-12-14 | 2009-02-26 | Mitsubishi Denki K.K. | Flügelzellen vakuumpumpe für automobile |
-
2000
- 2000-10-02 JP JP2000301962A patent/JP3672237B2/ja not_active Expired - Fee Related
-
2001
- 2001-03-26 EP EP01107401.0A patent/EP1193396B1/fr not_active Expired - Lifetime
- 2001-04-19 KR KR10-2001-0021142A patent/KR100385682B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100385682B1 (ko) | 2003-05-27 |
JP3672237B2 (ja) | 2005-07-20 |
EP1193396A2 (fr) | 2002-04-03 |
EP1193396A3 (fr) | 2003-07-30 |
JP2002106486A (ja) | 2002-04-10 |
KR20020026790A (ko) | 2002-04-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7997882B2 (en) | Reduced rotor assembly diameter vane pump | |
US6280154B1 (en) | Scroll compressor | |
JP6369194B2 (ja) | 電動ポンプユニット | |
US4874302A (en) | Scroll compressor with oil feeding passages in thrust bearing | |
US6544021B2 (en) | Oil pump | |
US8016576B2 (en) | Vehicle transmission with fluid pump having a recirculation circuit | |
JP5069244B2 (ja) | 円筒形の冷却ブシュを備えたポンプ | |
EP1193396B1 (fr) | Pompe à vide à ailettes pour automobiles | |
EP0289958B1 (fr) | Pompe à eau | |
EP3567213B1 (fr) | Compresseur à spirales | |
KR100385683B1 (ko) | 자동차용 베인식 진공펌프 | |
JP2015116900A (ja) | 車輪用駆動装置 | |
EP1096150B1 (fr) | Machine à spirales | |
EP1300593A2 (fr) | Compresseur à palettes | |
CN218493797U (zh) | 用于涡旋压缩机的涡旋盘以及涡旋压缩机 | |
CN109563845B (zh) | 旋转机械 | |
US7503757B2 (en) | Oil pump having rotor receiving portion for restriction moving range of an outer rotor in a direction perpendicular to an eccentric direction | |
EP2242927B1 (fr) | Pompe à déplacement avec barrière contre la fuite de fluide | |
US4408969A (en) | Vane compressor having improved rotor supporting means | |
US6048185A (en) | Hydraulic pumps | |
US20060140766A1 (en) | Vane wheel for torque converter and manufacturing method | |
EP0553916B1 (fr) | Boîte de vitesses pour véhicule automobile avec lubrication forcée des engrenages libres | |
JP4310827B2 (ja) | スクロール形流体機械 | |
EP3708771B1 (fr) | Dispositif de pompage | |
CN117514773A (zh) | 用于涡旋压缩机的涡旋盘以及涡旋压缩机 |
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: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17P | Request for examination filed |
Effective date: 20030806 |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MITSUBISHI DENKI KABUSHIKI KAISHA |
|
17Q | First examination report despatched |
Effective date: 20080610 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20141021 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
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 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 60149268 Country of ref document: DE Effective date: 20150423 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 60149268 Country of ref document: DE |
|
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 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
26N | No opposition filed |
Effective date: 20151214 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20160322 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20160323 Year of fee payment: 16 Ref country code: FR Payment date: 20160208 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60149268 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20170326 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20171130 |
|
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: 20170331 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171003 |
|
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: 20170326 |