US20090155113A1 - Variable delivery vane oil pump - Google Patents
Variable delivery vane oil pump Download PDFInfo
- Publication number
- US20090155113A1 US20090155113A1 US11/719,735 US71973505A US2009155113A1 US 20090155113 A1 US20090155113 A1 US 20090155113A1 US 71973505 A US71973505 A US 71973505A US 2009155113 A1 US2009155113 A1 US 2009155113A1
- Authority
- US
- United States
- Prior art keywords
- rotor
- stator
- vanes
- axis
- 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.)
- Abandoned
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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
- F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
- F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
-
- 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
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0827—Vane tracking; control therefor by mechanical means
- F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
-
- 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
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0881—Construction of vanes or vane holders the vanes consisting of two or more parts
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/348—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
Definitions
- the present innovation relates to a variable delivery vane oil pump.
- variable delivery vane oil pump of the type comprising a rotor, which is mounted to turn about its longitudinal axis, and presents a plurality of outwardly radially open grooves; a stator, which extends about the rotor, and is eccentrically mounted with respect to the rotor itself; a plurality of vanes, each of which is slidingly mounted inside a respective groove, and presents an outer edge arranged essentially in contact with the stator; and adjusting means for selectively controlling the eccentricity between the rotor and the stator and, therefore, the delivery of the pump.
- variable delivery vane oil pumps of the type described above present some drawbacks mainly deriving from the fact of presenting a relatively high sliding friction between the vanes and the stator.
- variable delivery vane oil pump as claimed in the attached claims.
- FIG. 1 is a schematic longitudinal section of a preferred embodiment of the vane pump of this innovation
- FIG. 2 is a section taken along line II-II in FIG. 1 ;
- FIG. 3 is a section taken along line III-III in FIG. 1 .
- variable delivery vane pump for feeding oil to a lubrication circuit (not shown) of an internal combustion engine (not shown) of a vehicle (not shown).
- the pump 1 comprises a supporting case 2 , which has an essentially parallelepiped rectangular section, and comprises, in turn, a first plate 3 laterally limited by an essentially flat surface 4 .
- the plate 3 is provided with a cavity 5 , which presents a longitudinal axis 6 orthogonal to the surface 4 , opens outwardly at the surface 4 , and is axially closed by a second plate 7 arranged in contact with the surface 4 itself.
- the pump 1 further comprises a power shaft 8 , which is mounted through the plates 3 and 7 to turn about the axis 6 , and carries a keyed cylindrical rotor 9 , which is housed inside the cavity 5 , and presents a width, measured parallelly to the axis 6 , essentially equal to the width of the cavity 5 , also measured parallelly to the axis 6 .
- the cavity 5 further houses inside a stator 10 , which extends about the rotor 9 , presents a width, measured parallelly to the axis 6 , essentially equal to the width of the cavity 5 also measured parallelly to the axis 6 , and is internally limited by an essentially cylindrical surface 11 arranged in eccentric position with respect to the rotor 9 .
- the stator 10 is hinged to the plate 3 to oscillate, with respect to the plate 3 itself and under the control of an adjusting device 12 of a known type, about a fulcrum axis 13 parallel to the axis 6 and therefore allowing to selectively control the eccentricity between the rotor 9 and the surface 11 .
- the rotor 9 presents two cylindrical reciprocally opposite cavities 14 , which are obtained coaxially to the axis 6 , and one facing the plate 3 and the other the plate 7 , and is provided with a plurality of radial grooves 15 (in the case shown, six grooves 15 ), which are obtained through the rotor 9 parallelly to the axis 6 , are uniformly distributed about the axis 6 , radially outwardly open at an outer surface 16 of the rotor 9 coaxially to the axis 6 , and further open axially outwardly at the cavities 14 .
- Each groove 15 is slidingly engaged by a vane 17 presenting an outer edge 18 , which extends parallelly to the axis 6 , and is arranged essentially in contact with the surface 11 of the stator 10 by arranging an annular shoe 19 in between.
- the shoe 19 presents a width, measured parallelly to the axis 6 , essentially equal to the width of a vane 17 also measured parallel to the axis 6 , and circumferentially coupled both to the stator 10 , and to the vanes 17 .
- Each vane 17 axially projects from the respective groove 15 inside the cavities 14 , and presents an inner edge 20 , which extends parallel to the axis 6 , and is essentially arranged in contact with two annular elements 21 , each of which is accommodated inside one of the cavities 14 , extends about the shaft 8 , and presents a diameter larger than the diameter of the shaft 8 and smaller than the diameter of the respective cavity 14 so as to float inside the respective cavity 14 itself.
- Each pair of respectively adjacent vanes 17 circumferentially defines a respective pumping chamber 22 , which is further limited radially by the rotor 9 and by the shoe 19 and axially by the plates 3 and 7 , is shifted by the rotor 9 about the axis 6 and through a suction inlet 23 and a delivery outlet 24 of the oil, and presents, following the rotation of the rotor 9 about the axis 6 and the eccentricity between the rotor 9 and the surface 11 of the stator 10 , a variable volume.
- each vane 17 comprises a plurality of foils 25 (in the case shown, four foils 25 ), which are reciprocally overlapped, and are slidingly radially coupled one to the other to ensure a relatively efficient fluidtight coupling between the vane 17 and the shoe 19 .
- the shoe 19 is housed inside a respective cavity, which are obtained in the stator 10 , and opens outwardly at the surface 11 , and projects outwardly from the respective cavity to arrange itself in contact with the respective vanes 17 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
- The present innovation relates to a variable delivery vane oil pump.
- In particular, the present innovation relates to a variable delivery vane oil pump of the type comprising a rotor, which is mounted to turn about its longitudinal axis, and presents a plurality of outwardly radially open grooves; a stator, which extends about the rotor, and is eccentrically mounted with respect to the rotor itself; a plurality of vanes, each of which is slidingly mounted inside a respective groove, and presents an outer edge arranged essentially in contact with the stator; and adjusting means for selectively controlling the eccentricity between the rotor and the stator and, therefore, the delivery of the pump.
- The known variable delivery vane oil pumps of the type described above present some drawbacks mainly deriving from the fact of presenting a relatively high sliding friction between the vanes and the stator.
- It is the object of the present innovation to provide a variable delivery vane oil pump, which is free from the aforementioned drawbacks.
- According to the present innovation, there is provided a variable delivery vane oil pump, as claimed in the attached claims.
- The present innovation will now be described with reference to the accompanying drawings illustrating a non-limitative embodiment example thereof, in which:
-
FIG. 1 is a schematic longitudinal section of a preferred embodiment of the vane pump of this innovation; -
FIG. 2 is a section taken along line II-II inFIG. 1 ; and -
FIG. 3 is a section taken along line III-III inFIG. 1 . - With reference to figures from 1 to 3, it is indicated as a whole by 1, a variable delivery vane pump, for feeding oil to a lubrication circuit (not shown) of an internal combustion engine (not shown) of a vehicle (not shown).
- The
pump 1 comprises a supportingcase 2, which has an essentially parallelepiped rectangular section, and comprises, in turn, afirst plate 3 laterally limited by an essentially flat surface 4. Theplate 3 is provided with acavity 5, which presents alongitudinal axis 6 orthogonal to the surface 4, opens outwardly at the surface 4, and is axially closed by asecond plate 7 arranged in contact with the surface 4 itself. - The
pump 1 further comprises apower shaft 8, which is mounted through theplates axis 6, and carries a keyedcylindrical rotor 9, which is housed inside thecavity 5, and presents a width, measured parallelly to theaxis 6, essentially equal to the width of thecavity 5, also measured parallelly to theaxis 6. - The
cavity 5 further houses inside astator 10, which extends about therotor 9, presents a width, measured parallelly to theaxis 6, essentially equal to the width of thecavity 5 also measured parallelly to theaxis 6, and is internally limited by an essentiallycylindrical surface 11 arranged in eccentric position with respect to therotor 9. - The
stator 10 is hinged to theplate 3 to oscillate, with respect to theplate 3 itself and under the control of an adjustingdevice 12 of a known type, about afulcrum axis 13 parallel to theaxis 6 and therefore allowing to selectively control the eccentricity between therotor 9 and thesurface 11. - The
rotor 9 presents two cylindrical reciprocally oppositecavities 14, which are obtained coaxially to theaxis 6, and one facing theplate 3 and the other theplate 7, and is provided with a plurality of radial grooves 15 (in the case shown, six grooves 15), which are obtained through therotor 9 parallelly to theaxis 6, are uniformly distributed about theaxis 6, radially outwardly open at anouter surface 16 of therotor 9 coaxially to theaxis 6, and further open axially outwardly at thecavities 14. - Each
groove 15 is slidingly engaged by avane 17 presenting anouter edge 18, which extends parallelly to theaxis 6, and is arranged essentially in contact with thesurface 11 of thestator 10 by arranging anannular shoe 19 in between. - The
shoe 19 presents a width, measured parallelly to theaxis 6, essentially equal to the width of avane 17 also measured parallel to theaxis 6, and circumferentially coupled both to thestator 10, and to thevanes 17. - Each
vane 17 axially projects from therespective groove 15 inside thecavities 14, and presents aninner edge 20, which extends parallel to theaxis 6, and is essentially arranged in contact with twoannular elements 21, each of which is accommodated inside one of thecavities 14, extends about theshaft 8, and presents a diameter larger than the diameter of theshaft 8 and smaller than the diameter of therespective cavity 14 so as to float inside therespective cavity 14 itself. - Each pair of respectively
adjacent vanes 17 circumferentially defines arespective pumping chamber 22, which is further limited radially by therotor 9 and by theshoe 19 and axially by theplates rotor 9 about theaxis 6 and through asuction inlet 23 and adelivery outlet 24 of the oil, and presents, following the rotation of therotor 9 about theaxis 6 and the eccentricity between therotor 9 and thesurface 11 of thestator 10, a variable volume. - Furthermore, with regard to this, it is important to state that the volume of each
chamber 22 at theinlet 23 and theoutlet 24 and, therefore, the delivery of thepump 1 are selectively controlled by shifting thestator 10 about theaxis 13 and, therefore, modifying the eccentricity between therotor 9 and thesurface 11 of thestator 10 itself. - As shown in
FIG. 2 , eachvane 17 comprises a plurality of foils 25 (in the case shown, four foils 25), which are reciprocally overlapped, and are slidingly radially coupled one to the other to ensure a relatively efficient fluidtight coupling between thevane 17 and theshoe 19. - According to a variation not shown, the
shoe 19 is housed inside a respective cavity, which are obtained in thestator 10, and opens outwardly at thesurface 11, and projects outwardly from the respective cavity to arrange itself in contact with therespective vanes 17. - The operation of the
pump 1 is easily inferred from the above description and does not require any further explanations.
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000088U ITBO20040088U1 (en) | 2004-11-19 | 2004-11-19 | OIL PUMP WITH VARIABLE FLOW PALLETS |
ITBO2004U000088 | 2004-11-19 | ||
PCT/IB2005/003452 WO2006054158A1 (en) | 2004-11-19 | 2005-11-18 | Variable delivery vane oil pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090155113A1 true US20090155113A1 (en) | 2009-06-18 |
Family
ID=36061710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/719,735 Abandoned US20090155113A1 (en) | 2004-11-19 | 2005-11-18 | Variable delivery vane oil pump |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090155113A1 (en) |
EP (1) | EP1812712B1 (en) |
JP (1) | JP2008520897A (en) |
CN (1) | CN101087959B (en) |
IT (1) | ITBO20040088U1 (en) |
WO (1) | WO2006054158A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090175750A1 (en) * | 2004-11-19 | 2009-07-09 | H.P.E. High Performance Engeneering S.R.I. | Variable delivery vane oil pump, in particular for oil |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007007293A1 (en) * | 2007-02-14 | 2008-08-21 | Zf Lenksysteme Gmbh | Adjustable positive-displacement pump for servo steering system of motor vehicle, has inserting unit inserted at inner surface of curve ring and designed such that sliding friction between rotor units and contact surface is reduced |
US8182248B2 (en) * | 2007-11-29 | 2012-05-22 | Hamilton Sundstrand Corporation | Vane pump with tilting pad radial bearings |
CN102678545B (en) * | 2012-05-28 | 2015-04-22 | 山西斯普瑞机械制造股份有限公司 | High-pressure anti-friction column pin type vane pump |
CN103114993B (en) * | 2012-12-05 | 2015-11-18 | 胡凯 | A kind of step blade type hydraulic machinery |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2974603A (en) * | 1957-06-28 | 1961-03-14 | Fraser Andrew | Vaned rotary pumps and motors |
US3111905A (en) * | 1960-09-02 | 1963-11-26 | Eickmann Karl | Casing capsule ring arrangement for a rotary vane machine |
US3143079A (en) * | 1961-08-07 | 1964-08-04 | James F Carner | Reversible discharge flow and variable displacement pump |
US3153384A (en) * | 1961-06-12 | 1964-10-20 | Pacific Ind Mfg Co | Vane type pump |
US3190074A (en) * | 1963-11-22 | 1965-06-22 | Stanley S Johns | Hydraulic transmission |
US3779216A (en) * | 1972-06-05 | 1973-12-18 | R Britt | Variable explosion-displacement rotary engine |
US4353337A (en) * | 1977-08-29 | 1982-10-12 | Rosaen Oscar E | Rotary engine |
US4538974A (en) * | 1983-09-17 | 1985-09-03 | Glyco Antriebstechnik Gmbh | Vane-type oil pump for automotive vehicle |
US4697996A (en) * | 1985-05-20 | 1987-10-06 | Mannesmann Rexroth Gmbh | Rotary pump with adjustable cam ring |
US5752815A (en) * | 1995-09-12 | 1998-05-19 | Mercedes Benz Ag | Controllable vane pump |
US20010055538A1 (en) * | 2000-01-20 | 2001-12-27 | Willi Schneider | Vane cell pump/motor |
US6558132B2 (en) * | 2001-09-24 | 2003-05-06 | General Motors Corporation | Variable displacement pump |
US7108493B2 (en) * | 2002-03-27 | 2006-09-19 | Argo-Tech Corporation | Variable displacement pump having rotating cam ring |
US7247008B2 (en) * | 2002-07-19 | 2007-07-24 | Argo-Tech Corporation | Cam ring bearing for fuel delivery system |
US7832995B2 (en) * | 2006-11-01 | 2010-11-16 | Hitachi, Ltd. | Variable displacement vane pump and method of manufacturing the same |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR778346A (en) * | 1933-12-05 | 1935-03-14 | Improvements to vane blowers | |
JPS5351529U (en) * | 1976-10-05 | 1978-05-02 | ||
DE3014519A1 (en) * | 1980-04-16 | 1981-10-22 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | TURNING PISTON, IN PARTICULAR CELL PUMP |
JP2582863Y2 (en) * | 1992-08-12 | 1998-10-15 | トーヨーエイテック株式会社 | Vane pump |
CN1182330C (en) * | 2000-02-14 | 2004-12-29 | 伊宝成 | Oil delivering pump |
DE60207401T2 (en) * | 2001-04-05 | 2006-08-10 | Argo-Tech Corp., Cleveland | ADJUSTING PUMP WITH ROTATING CAM RING AND OPERATING PROCEDURES |
-
2004
- 2004-11-19 IT IT000088U patent/ITBO20040088U1/en unknown
-
2005
- 2005-11-18 US US11/719,735 patent/US20090155113A1/en not_active Abandoned
- 2005-11-18 WO PCT/IB2005/003452 patent/WO2006054158A1/en active Application Filing
- 2005-11-18 JP JP2007542149A patent/JP2008520897A/en active Pending
- 2005-11-18 EP EP05806369.4A patent/EP1812712B1/en active Active
- 2005-11-18 CN CN2005800398183A patent/CN101087959B/en active Active
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2974603A (en) * | 1957-06-28 | 1961-03-14 | Fraser Andrew | Vaned rotary pumps and motors |
US3111905A (en) * | 1960-09-02 | 1963-11-26 | Eickmann Karl | Casing capsule ring arrangement for a rotary vane machine |
US3153384A (en) * | 1961-06-12 | 1964-10-20 | Pacific Ind Mfg Co | Vane type pump |
US3143079A (en) * | 1961-08-07 | 1964-08-04 | James F Carner | Reversible discharge flow and variable displacement pump |
US3190074A (en) * | 1963-11-22 | 1965-06-22 | Stanley S Johns | Hydraulic transmission |
US3779216A (en) * | 1972-06-05 | 1973-12-18 | R Britt | Variable explosion-displacement rotary engine |
US4353337A (en) * | 1977-08-29 | 1982-10-12 | Rosaen Oscar E | Rotary engine |
US4538974A (en) * | 1983-09-17 | 1985-09-03 | Glyco Antriebstechnik Gmbh | Vane-type oil pump for automotive vehicle |
US4697996A (en) * | 1985-05-20 | 1987-10-06 | Mannesmann Rexroth Gmbh | Rotary pump with adjustable cam ring |
US5752815A (en) * | 1995-09-12 | 1998-05-19 | Mercedes Benz Ag | Controllable vane pump |
US20010055538A1 (en) * | 2000-01-20 | 2001-12-27 | Willi Schneider | Vane cell pump/motor |
US7491043B2 (en) * | 2001-04-05 | 2009-02-17 | Argo-Tech Corporation | Variable displacement pump having a rotating cam ring |
US6558132B2 (en) * | 2001-09-24 | 2003-05-06 | General Motors Corporation | Variable displacement pump |
US7108493B2 (en) * | 2002-03-27 | 2006-09-19 | Argo-Tech Corporation | Variable displacement pump having rotating cam ring |
US7247008B2 (en) * | 2002-07-19 | 2007-07-24 | Argo-Tech Corporation | Cam ring bearing for fuel delivery system |
US7832995B2 (en) * | 2006-11-01 | 2010-11-16 | Hitachi, Ltd. | Variable displacement vane pump and method of manufacturing the same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090175750A1 (en) * | 2004-11-19 | 2009-07-09 | H.P.E. High Performance Engeneering S.R.I. | Variable delivery vane oil pump, in particular for oil |
Also Published As
Publication number | Publication date |
---|---|
WO2006054158A8 (en) | 2006-08-10 |
JP2008520897A (en) | 2008-06-19 |
WO2006054158A1 (en) | 2006-05-26 |
ITBO20040088U1 (en) | 2005-02-19 |
EP1812712B1 (en) | 2018-01-10 |
EP1812712A1 (en) | 2007-08-01 |
CN101087959B (en) | 2010-05-26 |
CN101087959A (en) | 2007-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: OFFICINE MAZZOCCO PAGNONI S.R.L., ITALY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASCARI, ENNIO;CAMPANI, LORENZO;REEL/FRAME:019729/0073 Effective date: 20070705 Owner name: H.P.E. HIGH PERFORMANCE ENGENEERING S.R.L., ITALY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ASCARI, ENNIO;CAMPANI, LORENZO;REEL/FRAME:019729/0073 Effective date: 20070705 |
|
AS | Assignment |
Owner name: H.P.E. HIGH PERFORMANCE ENGENEERING S.R.L., ITALY Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE SECOND RECEIVING PARTY PREVIOUSLY RECORDED ON REEL 019729 FRAME 0073;ASSIGNORS:ASCARI, ENNIO;CAMPANI, LORENZO;REEL/FRAME:020005/0536 Effective date: 20070705 Owner name: O.M.P. OFFICINE MAZZOCCO PAGNONI S.R.L., ITALY Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE SECOND RECEIVING PARTY PREVIOUSLY RECORDED ON REEL 019729 FRAME 0073;ASSIGNORS:ASCARI, ENNIO;CAMPANI, LORENZO;REEL/FRAME:020005/0536 Effective date: 20070705 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |