FR2869958A1 - Vacuum pump for e.g. diesel engine, has rotor with part, that is situated inside hollow body, having same cylindrical section as that of part situated outside the body, where section corresponds to nominal diameter of rotor - Google Patents
Vacuum pump for e.g. diesel engine, has rotor with part, that is situated inside hollow body, having same cylindrical section as that of part situated outside the body, where section corresponds to nominal diameter of rotor Download PDFInfo
- Publication number
- FR2869958A1 FR2869958A1 FR0404929A FR0404929A FR2869958A1 FR 2869958 A1 FR2869958 A1 FR 2869958A1 FR 0404929 A FR0404929 A FR 0404929A FR 0404929 A FR0404929 A FR 0404929A FR 2869958 A1 FR2869958 A1 FR 2869958A1
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- Prior art keywords
- rotor
- fixed
- translation
- pump
- pump according
- 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.)
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Classifications
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- 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
- F04C18/3442—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 the surfaces of the inner and outer member, forming the inlet and outlet opening
-
- 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
- F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
-
- 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
- F04C2220/00—Application
- F04C2220/10—Vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Pompe à vide à palette(s) perfectionnéeAdvanced vacuum pump with pallet (s)
L'invention concerne une pompe à vide de type à palette. The invention relates to a pallet type vacuum pump.
Elle concerne plus particulièrement une pompe comprenant un corps de révolution, un rotor monté excentré à l'intérieur du corps, une ou plusieurs palette(s) montée(s) coulissante à l'intérieur d'une ou plusieurs fente ménagée(s) dans la partie du rotor située à l'intérieur du corps, des moyens pour maintenir fixé en translation le rotor à l'intérieur du corps. It relates more particularly to a pump comprising a body of revolution, a rotor mounted eccentrically inside the body, one or more pallet (s) mounted (s) sliding inside one or more slot provided (s) in the part of the rotor located inside the body, means for maintaining in translation fixed the rotor inside the body.
Les pompes à vide sont largement implantées sur les moteurs de type diesel et à essence dans les véhicules automobiles et servent à générer le vide dans les différents organes qui en nécessitent tels que les amplificateurs de freinage. Vacuum pumps are widely installed on diesel and gasoline engines in motor vehicles and are used to generate vacuum in the various bodies that require such as brake amplifiers.
Il est demandé à ce jour de plus en plus de vide disponible pour les différents organes du véhicule. Une solution naturelle à ce problème consisterait à augmenter la taille des pompes à vide et par là leurs performances. It is asked to this day more and more vacuum available for the various organs of the vehicle. A natural solution to this problem would be to increase the size of the vacuum pumps and thereby their performance.
Or, cette solution est incompatible avec la place disponible en dessous du capot de plus en plus restreinte. Il est donc très délicat d'implanter des pompes fortement surdimensionnées. However, this solution is incompatible with the available space below the hood increasingly restricted. It is therefore very difficult to install heavily oversized pumps.
Le but de l'invention est alors de proposer une solution qui permette d'augmenter les performances des pompes à vide à palette(s) tout en conservant leur encombrement ou qui permette de réduire leur encombrement tout en conservant les performances. The object of the invention is then to propose a solution that makes it possible to increase the performance of the vacuum pumps with pallet (s) while maintaining their bulk or which makes it possible to reduce their bulk while maintaining the performances.
Pour ce faire, l'invention a pour objet une pompe à vide comprenant un corps de révolution, un rotor monté excentré à l'intérieur du corps, une ou plusieurs palette(s) montée(s) coulissante(s) à l'intérieur d'une ou plusieurs fente(s) ménagée(s) dans la partie du rotor située à l'intérieur du corps, des moyens pour maintenir fixé en translation le rotor à l'intérieur du corps, caractérisée en ce que la partie du rotor située à l'intérieur du corps a sensiblement la même section cylindrique que la partie située en dehors et qui correspond au diamètre nominal 0 du rotor et en ce que les moyens de maintien en translation sont disposés à l'extérieur du corps. To do this, the subject of the invention is a vacuum pump comprising a body of revolution, a rotor mounted eccentrically inside the body, one or more pallet (s) mounted (s) sliding (s) inside one or more slots in the rotor part located inside the body, means for keeping the rotor fixed in translation inside the body, characterized in that the part of the rotor located inside the body has substantially the same cylindrical section as the part located outside and which corresponds to the nominal diameter 0 of the rotor and in that the translational holding means are arranged outside the body.
Grâce à l'invention, on peut augmenter sensiblement les performances de la pompe tout en conservant l'encombrement radial d'une pompe selon l'état de l'art dont le rotor est avec épaulement. Thanks to the invention, one can substantially increase the performance of the pump while maintaining the radial size of a pump according to the state of the art with the rotor is with shoulder.
En effet, les pompes à vide à palette existantes et déjà implantées sur véhicule présentent un corps à l'intérieur duquel est logé un rotor avec épaulement en appui sur la paroi inférieure du corps. Cet épaulement sert à maintenir le rotor fixé en translation et présente une certaine largeur, typiquement de l'ordre de 10 mm pour un diamètre nominal extérieur de la partie du rotor située à l'extérieur du corps de l'ordre de 30 mm. Indeed, the existing vacuum pumps pallet and already implanted on vehicle have a body inside which is housed a rotor with shoulder resting on the lower wall of the body. This shoulder serves to keep the rotor fixed in translation and has a width, typically of the order of 10 mm for a nominal outside diameter of the portion of the rotor located outside the body of the order of 30 mm.
En supprimant cet épaulement du rotor on augmente le volume de la cavité formé à l'intérieur du corps fermé et donc le volume de vide disponible par la pompe. Cette augmentation du volume disponible est faite en conservant le diamètre nominal du corps tel qu'il était auparavant. La pompe à vide, agencée avec son rotor excentré et sa palette unique, permet une fois l'ensemble rotor excentré et palette en rotation de créer une chambre à volume variable augmenté qui aspire de manière connue en soi l'air d'un côté du rotor pour le rejeter de l'autre. Removing this shoulder from the rotor increases the volume of the cavity formed inside the closed body and thus the volume of vacuum available by the pump. This increase in available volume is made by keeping the nominal diameter of the body as it was before. The vacuum pump, arranged with its eccentric rotor and its single pallet, allows once the eccentric rotor assembly and rotating pallet to create an increased variable volume chamber which sucks in a manner known per se air from one side of the rotor to reject it from the other.
Confronté au problème technique posé, l'homme de l'art aurait plutôt tendance à réduire le diamètre nominal du rotor et la largeur de l'épaulement tout en conservant le diamètre nominal du corps. Cette solution ne convient pas car elle la tenue du rotor ne serait pas suffisante. En effet, le diamètre du rotor et donc du palier est le principal facteur pour déterminer la bonne tenue mécanique du rotor. En outre, le palier doit assurer une lubrification correcte de l'ensemble, doit accepter le siège du joint d'Oldham ou du système d'accouplement arbre à cames/pompe. Faced with the technical problem, those skilled in the art would tend to reduce the nominal diameter of the rotor and the width of the shoulder while maintaining the nominal diameter of the body. This solution is not suitable because it the holding of the rotor would not be sufficient. Indeed, the diameter of the rotor and therefore the bearing is the main factor to determine the good mechanical strength of the rotor. In addition, the bearing must ensure proper lubrication of the assembly, must accept the Oldham seal seat or the camshaft / pump coupling system.
La diminution du diamètre du rotor aurait donc un impact néfaste sur la tenue mécanique de l'ensemble de ces éléments pour des sollicitations données. The decrease in the diameter of the rotor would therefore have a detrimental impact on the mechanical strength of all of these elements for given solicitations.
Par ailleurs, la palette ne peut pas assurer à elle seule le maintien du rotor en translation car cela engendrerait une usure accélérée et donc des performances dégradées de la pompe, voir la rupture de la palette et un changement prématuré de la palette ou de la pompe entière. Un tel changement ne serait pas admissible. Moreover, the pallet can not alone ensure the maintenance of the rotor in translation because it would cause accelerated wear and therefore poor performance of the pump, see the rupture of the pallet and premature change of the pallet or pump whole. Such a change would not be eligible.
Selon un mode de réalisation préféré de l'invention, les moyens pour maintenir fixé en translation le rotor à l'intérieur du corps sont constitués d'une collerette montée autour du rotor et d'une patte fixée par vis en dessous de la paroi inférieure du corps et en appui en dessous de la collerette. According to a preferred embodiment of the invention, the means for keeping the rotor fixed in translation inside the body consist of a flange mounted around the rotor and a tab fixed by screws below the bottom wall. body and support below the collar.
Selon un autre mode de réalisation de l'invention, les moyens pour maintenir fixé en translation sont constitués d'un anneau emmanché en force dans le diamètre de centrage du rotor pratiqué dans la partie inférieure du corps. According to another embodiment of the invention, the means for maintaining fixed in translation consist of a ring fitted with force in the centering diameter of the rotor formed in the lower part of the body.
De préférence, le rotor a la même section cylindrique sur toute sa hauteur qui correspond à son diamètre nominal du rotor. Preferably, the rotor has the same cylindrical section over its entire height which corresponds to its nominal diameter of the rotor.
De préférence encore, les moyens de maintien en translation font partie du limiteur de déplacement du clapet anti-retour lui-même étant fixé en dessous de la face inférieure du corps par vis ou rivet. More preferably, the translational holding means are part of the displacement limiter of the nonreturn valve itself being fixed below the lower face of the body by screw or rivet.
L'invention concerne également un moteur à combustion interne comprenant une pompe telle que décrite précédemment dans lequel le rotor est agencé en bout d'arbres à cames dudit moteur. The invention also relates to an internal combustion engine comprising a pump as described above in which the rotor is arranged at the end of camshafts of said engine.
D'autres avantages et caractéristiques ressortiront mieux à la lecture de la description détaillée faite en référence aux figures suivantes dans lesquelles: -la figure 1 représente une vue schématique d'une pompe à vide à palette unique telle qu'elle est actuellement implantée sur un moteur à combustion interne; -la figure 2 représente une vue schématique d'une pompe à vide à palette unique selon l'invention implantée sur le même type de moteur à combustion interne que celui de la figure 1. Other advantages and features will appear more clearly on reading the detailed description given with reference to the following figures in which: FIG. 1 represents a schematic view of a single-vane vacuum pump as it is currently installed on a internal combustion engine; FIG. 2 represents a schematic view of a single-vane vacuum pump according to the invention implanted on the same type of internal combustion engine as that of FIG. 1.
Sur la figure 1, on voit une pompe 1 qui comprend essentiellement un corps creux 2 de section circulaire fermé par un couvercle 21 et à l'intérieur duquel est monté un rotor 3 excentré. In Figure 1, there is shown a pump 1 which essentially comprises a hollow body 2 of circular section closed by a cover 21 and inside which is mounted an eccentric rotor 3.
Plus exactement, le rotor 3 présente un épaulement 31 en appui à l'intérieur du corps contre sa face inférieure 22. cet épaulement 31 permet de maintenir fixé en translation le rotor 3. More exactly, the rotor 3 has a shoulder 31 resting inside the body against its lower face 22. This shoulder 31 makes it possible to keep the rotor 3 fixed in translation.
Typiquement, l'épaulement a une largeur de l'ordre de 10 mm et le rotor a un diamètre nominal 0 ici de 30 mm pour un diamètre de corps de l'ordre de 60 mm. Typically, the shoulder has a width of the order of 10 mm and the rotor has a nominal diameter of 30 mm here for a body diameter of the order of 60 mm.
Le rotor 3 est monté également dans sa partie supérieur dans un palier 210 pratiqué dans le couvercle 21 du corps 2. Ce palier 210 permet de maintenir le rotor parfaitement aligné en fonctionnement, par exemple avec l'arbre à cames d'un moteur en bout duquel il est monté. The rotor 3 is also mounted in its upper part in a bearing 210 formed in the cover 21 of the body 2. This bearing 210 keeps the rotor perfectly aligned in operation, for example with the camshaft of a motor end from which he climbed.
Le rotor 3 présente enfin une fente 32 dans laquelle est insérée une seule palette 4 typiquement ici de l'ordre de 6 mm d'épaisseur, 50 mm de hauteur et 60 mm de long. The rotor 3 finally has a slot 32 in which is inserted a single pallet 4 typically here of the order of 6 mm thick, 50 mm high and 60 mm long.
Cette pompe 1 ainsi constituée avec les éléments cités ci-dessus et dimensionnés tel que ci-dessus génère un volume de vide disponible de l'ordre de 180 cm3. This pump 1 thus formed with the elements mentioned above and dimensioned as above generates an available vacuum volume of the order of 180 cm3.
Par ailleurs, cette pompe est de manière connue en soi fixée à une face extérieure formant bride 51 de culasse 5 de moteur à combustion interne par l'intermédiaire de vis 6a, 6b. L'étanchéité de la pompe est, d'une part, assurée à l'intérieur du corps par un joint 7a et, d'autre part, entre la face extérieure de la culasse et la face inférieure du corps par un autre joint 7b. Furthermore, this pump is in known manner fixed to an outer face forming a flange 51 of the cylinder 5 of an internal combustion engine by means of screws 6a, 6b. The sealing of the pump is, on the one hand, provided inside the body by a seal 7a and, on the other hand, between the outer face of the cylinder head and the lower face of the body by another seal 7b.
Afin d'augmenter le volume de vide disponible avec une pompe à monopalette identique dans tous ses éléments constitutifs tout en conservant son encombrement radial c'est-à-dire le diamètre circulaire du corps, l'invention propose de fournir un rotor 3' à diamètre unique 0 égal à celui de l'arbre à cames du moteur en bout duquel il est implanté ou du palier de la bride de la pompe à vide. In order to increase the volume of vacuum available with an identical monopallet pump in all its components while maintaining its radial size, that is to say the circular diameter of the body, the invention proposes to provide a rotor 3 'to single diameter 0 equal to that of the camshaft of the motor at the end of which it is implanted or the bearing of the flange of the vacuum pump.
En d'autres termes, le rotor ne présente plus d'épaulement 31 et présente un diamètre unique égal à 30 mm. In other words, the rotor no longer has shoulder 31 and has a single diameter equal to 30 mm.
En enlevant cet épaulement et en conservant par ailleurs toutes les autres dimensions de la pompe, le volume de vide gagné est ici égal à 20 cm3. By removing this shoulder and also keeping all other dimensions of the pump, the vacuum volume gained here is equal to 20 cm3.
Par souci de clarté, les éléments repris sur la figure 2 et montrant une pompe selon l'invention sont identiques à ceux de la figure 1. For the sake of clarity, the elements shown in FIG. 2 and showing a pump according to the invention are identical to those of FIG.
On voit donc sur cette figure 2 un rotor 3' de 5 diamètre unique monté de la même manière que celui selon l'état de l'art. Thus, FIG. 2 shows a rotor 3 'of single diameter mounted in the same manner as that according to the state of the art.
Pour maintenir fixé en translation ce rotor 3' dans le corps correspondant, il est prévu ici d'emmancher en force une collerette 8 sur le diamètre extérieur du rotor 3' à une distance d telle de la partie supérieure du rotor que cette collerette vienne en appui contre la face inférieure 22 du corps formant bride. To maintain this rotor 3 'fixed in translation in the corresponding body, it is here intended to force fit a flange 8 on the outer diameter of the rotor 3' at a distance d such from the upper part of the rotor that this flange comes into position. bearing against the lower face 22 of the flange body.
Cette collerette 8 est maintenue par une patte 9 elle-même fixée par vis 10 en dessous de la face inférieure 15 de la bride. This flange 8 is held by a lug 9 itself fixed by screws 10 below the underside 15 of the flange.
Une vis et rondelle 10,11 conventionnelles suffisent ici car peu d'efforts passent en fonctionnement c'est-à-dire lors de la rotation du rotor, typiquement dans une gamme de vitesse(s) de rotation comprise entre 300 et 4000 tr/min. A conventional screw and washer 10, 11 suffice here because little effort goes into operation that is to say during the rotation of the rotor, typically in a range of speed (s) of rotation between 300 and 4000 tr / min.
L'utilisation d'un rotor à unique diamètre invention selon l'invention permet ainsi, en conservant un diamètre identique de palier, d'augmenter la cylindrée dans un même volume de pompe ou de maintenir la cylindrée dans un volume de pompe plus petit. The use of a single-diameter rotor invention according to the invention thus makes it possible, while maintaining an identical bearing diameter, to increase the cubic capacity in the same pump volume or to maintain the cubic capacity in a smaller pump volume.
L'invention amène également les avantages suivants: - réduction de la masse globale de la pompe; - réduction du temps de fabrication d'une pompe par diminution des temps de cycles de fabrication. The invention also brings the following advantages: - reduction of the overall mass of the pump; - Reduction of the manufacturing time of a pump by reducing manufacturing cycle times.
Bien entendu, il va de soi que d'autres 30 modifications peuvent être apportés sans pour autant sortir du cadre de l'invention. Of course, it goes without saying that other modifications may be made without departing from the scope of the invention.
Par exemple, comme revendiqué, les moyens de fixation peuvent consister en un anneau emmanché en force dans le diamètre du centrage de la bride. For example, as claimed, the fastening means may consist of a ring force-fitted in the diameter of the centering of the flange.
Ils peuvent également consistés en une ou plusieurs fourchette(s) fixée(s) sur la bride par vis, rivet, collage. They can also consist of one or more fork (s) fixed (s) on the flange by screw, rivet, gluing.
On notera enfin que l'invention s'applique à tous corps de pompe de révolution, c'est-à-dire de section circulaire ou elliptique... Finally, note that the invention applies to all pump bodies of revolution, that is to say of circular or elliptical section ...
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0404929A FR2869958B1 (en) | 2004-05-07 | 2004-05-07 | VACUUM PUMP WITH PERFECTED PALLET (S) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0404929A FR2869958B1 (en) | 2004-05-07 | 2004-05-07 | VACUUM PUMP WITH PERFECTED PALLET (S) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2869958A1 true FR2869958A1 (en) | 2005-11-11 |
| FR2869958B1 FR2869958B1 (en) | 2008-08-08 |
Family
ID=34945122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0404929A Expired - Fee Related FR2869958B1 (en) | 2004-05-07 | 2004-05-07 | VACUUM PUMP WITH PERFECTED PALLET (S) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2869958B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009109282A1 (en) * | 2008-03-01 | 2009-09-11 | Ixetic Hückeswagen Gmbh | Vacuum pump housing cover |
| ITMI20101984A1 (en) * | 2010-10-26 | 2012-04-27 | O M P Officine Mazzocco Pagnoni S R L | MONOPAL PUMP |
| CN106050658A (en) * | 2012-05-21 | 2016-10-26 | 纳薄特斯克汽车零部件有限公司 | Vacuum pump |
| WO2017152939A1 (en) * | 2016-03-07 | 2017-09-14 | Pierburg Pump Technology Gmbh | Automotive vacuum pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0264749A2 (en) * | 1986-10-18 | 1988-04-27 | B a r m a g AG | Sliding vane vacuum pump |
| EP0264778A2 (en) * | 1986-10-18 | 1988-04-27 | B a r m a g AG | Vane pump |
| FR2830905A1 (en) * | 2001-10-15 | 2003-04-18 | Luk Automobiltech Gmbh & Co Kg | Vacuum pump, for braking force intensification systems in motor vehicles comprises a rotor which is made of a plastic material hardenable by heat |
-
2004
- 2004-05-07 FR FR0404929A patent/FR2869958B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0264749A2 (en) * | 1986-10-18 | 1988-04-27 | B a r m a g AG | Sliding vane vacuum pump |
| EP0264778A2 (en) * | 1986-10-18 | 1988-04-27 | B a r m a g AG | Vane pump |
| FR2830905A1 (en) * | 2001-10-15 | 2003-04-18 | Luk Automobiltech Gmbh & Co Kg | Vacuum pump, for braking force intensification systems in motor vehicles comprises a rotor which is made of a plastic material hardenable by heat |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009109282A1 (en) * | 2008-03-01 | 2009-09-11 | Ixetic Hückeswagen Gmbh | Vacuum pump housing cover |
| ITMI20101984A1 (en) * | 2010-10-26 | 2012-04-27 | O M P Officine Mazzocco Pagnoni S R L | MONOPAL PUMP |
| WO2012056295A2 (en) * | 2010-10-26 | 2012-05-03 | O.M.P. Officine Mazzocco Pagnoni S.R.L. | Single-vane pump |
| WO2012056295A3 (en) * | 2010-10-26 | 2013-06-27 | O.M.P. Officine Mazzocco Pagnoni S.R.L. | Single-vane pump |
| CN103314216A (en) * | 2010-10-26 | 2013-09-18 | O·M·P·奥菲奇内·马佐科·帕尼奥尼有限公司 | Single-vane pump |
| CN103314216B (en) * | 2010-10-26 | 2016-03-09 | O·M·P·奥菲奇内·马佐科·帕尼奥尼有限公司 | Single vane pump |
| CN106050658A (en) * | 2012-05-21 | 2016-10-26 | 纳薄特斯克汽车零部件有限公司 | Vacuum pump |
| US9841023B2 (en) | 2012-05-21 | 2017-12-12 | Nabtesco Automotive Corporation | Vacuum pump |
| WO2017152939A1 (en) * | 2016-03-07 | 2017-09-14 | Pierburg Pump Technology Gmbh | Automotive vacuum pump |
| CN108699910A (en) * | 2016-03-07 | 2018-10-23 | 皮尔伯格泵技术有限责任公司 | Automobile vacuum pump |
| US10982673B2 (en) | 2016-03-07 | 2021-04-20 | Pierburg Pump Technology Gmbh | Automotive vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2869958B1 (en) | 2008-08-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20110131 |