EP2038555A1 - Flügelzellenpumpe - Google Patents
FlügelzellenpumpeInfo
- Publication number
- EP2038555A1 EP2038555A1 EP07722510A EP07722510A EP2038555A1 EP 2038555 A1 EP2038555 A1 EP 2038555A1 EP 07722510 A EP07722510 A EP 07722510A EP 07722510 A EP07722510 A EP 07722510A EP 2038555 A1 EP2038555 A1 EP 2038555A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wing
- vane pump
- cap
- pump according
- pressure relief
- 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
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
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- 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
Definitions
- the invention relates to a vane pump, in particular a monoerielvakuumpumpe, with a rotor which is arranged rotatably about a rotation axis in a housing and having at least one wing, which divides a working space in the housing into a pressure chamber and a suction chamber.
- the object of the invention is to provide a vane pump according to the preamble of claim 1, which has a longer life than conventional vane pumps.
- the object is in a vane pump, in particular a Monoerielvakuumpumpe, with a rotor which is arranged rotatably about a rotation axis in a housing and having at least one wing, which divides a working space in the housing into a pressure chamber and a suction chamber, achieved in that Wing has at least one pressure relief connection, which, in particular perpendicular to the axis of rotation of the rotor, extends between two wing ends and connects the pressure chamber with the suction chamber.
- the pressure relief connection pressure peaks, which can be caused for example by a reverse rotation of the rotor against the normal direction of rotation, effectively reduced.
- a preferred embodiment of the vane pump is characterized in that the two wing ends communicate with each other through a pressure relief passage.
- the pressure relief passage extends continuously from one wing tip to the opposite wing tip.
- the pressure relief channel comprises at least one through hole.
- the through hole creates a hydraulic connection between the wing tips.
- the pressure relief channel comprises at least one groove. The groove is recessed in a side surface of the wing.
- a further preferred embodiment of the vane pump is characterized in that at the wing ends in each case a cap is mounted so movable that the pressure relief connection is released depending on the position of the caps relative to the wing in particular during rotation of the rotor pressure dependent.
- the movable caps represent a kind of pressure relief valve, which connects at very high pressures or pressure peaks, which could lead to damage of the vane pump, the pressure chamber via the pressure relief connection to the suction chamber, or a kind of switching valve, which in turn relieves the changing pressure side in the direction of rotation ,
- the vane pump is characterized in that the cap has a base body with a contact surface, which rests against the housing and / or is guided.
- Conventional caps are used, for example, to minimize the wear between the wing and the housing and / or to improve the seal between the pressure chamber and the suction chamber.
- the caps also have the function of a switching or pressure relief valve.
- FIG. 1 Another preferred exemplary embodiment of the vane pump is characterized in that at least one foot originates from the main body, with the aid of which the associated cap is pivotably mounted in a receptacle on the wing. The foot serves to hold the cap in operation at the associated wing end. Additionally or alternatively, one or more positioning lugs may originate from the base body.
- Another preferred embodiment of the vane pump is characterized in that the cross section of the foot increases away from the base body. This allows a defined tilting of the foot in the receptacle and a targeted release of the pressure relief connection at high pressures or pressure peaks.
- vane pump is characterized in that the receptacle for the wing foot widens outwards. This allows a defined tilting of the foot in the receptacle and a targeted release of the pressure relief connection at high pressures. Also, a vane pump is preferred in which the cap lifts radially by pressure from the wing and thus releases the pressure relief connection.
- the vane pump is characterized in that the wing ends each have at least one guide body on which the associated cap is pivotally and / or rotatably mounted.
- the guide body is partially rounded in cross section.
- the pressure relief connection extends between two guide bodies, which are provided at the wing tips.
- the pressure relief connection opens in each case in a guide body.
- the mouth region is covered by this depending on the position of the associated cap.
- the vane pump is characterized in that the cap partially surrounds the guide body.
- the shape of the cap is adapted to the shape of the guide body.
- Figure 1 shows a wing of a vane pump according to the invention in longitudinal section
- Figure 2 is a sectional view taken along the line H-II in Figure 1;
- Figure 2a shows a detail of Figure 2 according to another embodiment
- FIG. 3 shows a wing according to another embodiment in cross section
- Figure 4 shows the wing of Figure 3 in plan view
- Figure 5 is a perspective view of a section of the wing of Figures 3 and 4 and Figure 6 is a schematic representation of a monoflip cell pump;
- FIG. 7 shows a further wing cap according to the invention in three illustrations
- Figure 8 shows a corresponding wing in 3 representations
- Figure 10 is a plan view of the wing of Figure 9;
- FIG. 11 is a plan view of a cap associated with the wing of FIGS. 9 and 10;
- FIG. 12 shows the cap from FIG. 11 in a side view
- FIG. 13 wing and cap from FIG. 9 to FIG. 12 in a three-dimensional partial view
- Figure 14 is a functional view in a vacuum pump for wings and cap of Figure 9 to Figure 13;
- FIG. 15 shows a capless wing according to the invention
- Figure 16 is a perspective view of a capless wing.
- the invention relates to a vane pump (see FIG. 6) having a housing 80 which has a suction connection 82 and a pressure connection 84.
- a working space 86 is provided, in which a rotor 88 is rotatably arranged.
- a wing 90 is slidably guided. By the wing 90, the working space 86 is divided in the housing into a suction chamber 92 and a pressure chamber 94.
- the pressure chamber 94 communicates with the pressure port 84 and the suction chamber 92 with the suction port 82 in connection.
- the rotor 88 is driven in an operating direction of rotation 96.
- a medium in particular air or an air-oil mixture
- a medium in particular air or an air-oil mixture
- the monoflip pump is used to apply a vacuum, that is, a vacuum, to a brake booster of a motor vehicle. Therefore, the monoflake pump is also referred to as a mono vacuum or as a single-wing vacuum pump. The structure and function of such monofuel cell pumps are assumed to be known.
- a wing 1 of a vane pump according to the invention is shown in various sections.
- the wing 1 is rotatable in the installed state about a rotation axis 2, the position of which changes relative to the (not shown) axis of rotation of the rotor of the vane pump.
- the axis of rotation 2 extends perpendicular to the plane.
- arrows 3 a rotation of the wing 1 is indicated against the operating direction of rotation.
- the wing 1 comprises a cuboid base body 4 with two long sides or side surfaces 6, 7 and two short sides or side surfaces 8, 9.
- the short sides 8, 9 are also referred to as ends of the wing 1 or wing ends.
- the planar surfaces of the wing 1 are denoted by 11 and 12.
- the two wing ends 8, 9 are connected by two continuous pressure relief channels 14, 15 with each other.
- the pressure relief channel 14 has two sections 16, 17 which are interconnected by a constriction 18.
- In the wing end 8 is a receptacle
- receptacle 21 movably mounted.
- Another cap 22 is movably mounted in a receptacle 23 at the other wing end 9.
- the receptacles 20, 23 are connected via the pressure relief channel 14 with each other.
- the caps 21, 22 have the same structure and, as explained for the example of the cap 21, a base body 28 which is equipped with a contact surface 29.
- the contact surface 29 is in the installed state of the wing 1 inside of the housing of the vane pump.
- a foot 30, with respect to the axis of rotation 2 extends radially inwards. The foot 30 is received with clearance in the receptacle 20 so that the associated cap 21 in the receptacle 20 can tilt.
- FIG. 1 it can be seen that two positioning lugs 31, 32 originate from the main body 28 or the foot 30 and are received with play in corresponding recesses 33, 34 in the main body 4 of the wing 1.
- FIG. 2 it is indicated by an angle 35 that the cap 22 tilts under pressure in the recess 23 when the wing 1 rotates in the direction of the arrows 3.
- the tilted position results between a foot 36 of the cap 22 and the base 4 of the wing 1 in the region of the receptacle 23 an entrance slit 37 for pressurized oil of an air-oil mixture, which is present in the working space of the vane pump.
- the foot 36 of the cap 22 moves in the receptacle 23, so that a connection between the two receptacles 23 and 20 via the pressure relief channel 14 is released. Additionally or alternatively, the entrance gap 37 communicates via the clearance between positioning lugs 38, 39 of the wing 22 and associated recesses in the base body 4 of the wing 1 with the pressure relief channels 14, 15, as shown in FIG.
- the cross section of the feet 30, 36 of the caps 21, 22 increases away from the main body 28, as shown in Figure 2a at 30a.
- the caps 21 are tiltable.
- the two blade ends 8, 9 are interconnected by the pressure relief connection to direct the oil, which is responsible for pushing out for the high pressure peaks, through the wing 1 to the suction side or low pressure side of the vane pump. If the oil passage is otherwise realized, the pressure relief connection alone may be sufficient.
- the tilting caps release the pressure relief connection at high pressures, so that the oil responsible for the high pressures is removed by this additional pressure relief connection. If necessary, even the channel volume in the wing is sufficient to reduce critical pressure peaks.
- a wing 41 is shown according to another embodiment in different views.
- the wing 41 is rotatable about a rotation axis 42 in the installed state.
- By arrows 43 the rotation of the wing 41 is indicated in Figure 3 in operation.
- the wing 41 comprises a cuboid base body 44 with two long sides 46, 47, two short sides 48, 49 and two surfaces 51, 52,
- the pressure relief connection according to the invention is provided in the embodiment shown in Figures 3 to 5 by two grooves 54, 55, which are excluded on the long sides 47, 46 in the base body 44.
- the grooves 54, 55 extend between two surelysungskörpem 58, 59, which are integrally connected to the short sides 48, 49 of the body 44 with the main body 44.
- two caps 61, 62 are movably guided. In the region of the cap 61 opens a radial end portion 64 which is formed in extension of the groove 54.
- two transverse grooves 66, 67 From the groove 54, two transverse grooves 66, 67 from.
- the cap 61 has a semicircular cylinder jacket-like basic body 72, which has at least one rectangular recess 74 in the region of the guide body, as can be seen in FIG.
- Figure 7 and Figure 8 show another cap according to the invention and a corresponding wing according to the invention, which differ from the embodiment in Figure 1 and 2 characterized in that here the cap is not pivotally mounted, but under pressure over the wing slightly lifts and thereby a corresponding oil passage releases.
- the cap 100 shown in a lateral section in Figure 7 b has a semi-cylindrical cap head 104 and two positioning lugs 102, which can be seen in plan view in Figure 7 c.
- FIG. 7 a shows how the two positioning lugs 102 each have four relief grooves 106 which cooperate with corresponding grooves in the associated wing 110 (FIG. 8).
- the cap 100 has a rounded bearing bar 108 (shown laterally in FIG. 7 b) which fills the spaces between the locating tabs 102 (see FIGS. 7 a and 7 b) and in corresponding rounded grooves 112 (see FIG. 8 a) Wing 110 is supported.
- the wing 110 also has inside in cross-section semi-circular grooves 114 which overlap with the rempligelkappennuten 106 of Figure 7 and thus ensure an oil passage from the wing to the cap when the cap 100 under pressure over something takes off from the wing.
- the wing 110 has in its interior three longitudinal ribs 116, 118 and 120 ( Figure 8 c), which are interconnected by two transverse ribs 122 and 124.
- the transverse rib 122 has a passage opening 126 and the transverse rib 124 has a through opening 128, so that via the grooves 106 in the wing caps, the grooves 114 on the inner wall of the wing and on the passage openings. gene 128 and 126, a pressure relief from one side of the wing to the other is possible as soon as the wing cap 100 lifted by overpressure of the wing 110 something.
- FIGS. 9 to 13 show another embodiment according to the invention of a wing and a cap with a pressure relief device, the function of which can be seen in FIG.
- the pressure relief is guided longitudinally through the wing from one wing end to the other, but laterally towards the wing head from one diegelend- and wing cap side to the other.
- a wing 130 with two end caps 132 is mounted in a rotor 134 and slides with its two caps 132 along the housing wall 136 of a vacuum pump.
- the wing includes a lateral opening 138, which corresponds to an opening 140 in the wing cap. If the rotor 134 of the vacuum pump rotates in the direction of rotation of the arrow 142, pressure-generating oil, indicated here by an arrow 144, can be relieved through the two openings in the direction of the arrow 146.
- pressure-generating oil represented here by an arrow 152, can be reduced via the blade opening 148 and the cap opening 150 in the direction of the arrow 154.
- FIG. 13 the wing cap 132 with the wing 130 is shown in a perspective view.
- the lateral wing openings 138 from FIG. 14 and the wing cap openings 140 corresponding thereto can be seen.
- openings 150 and, not visible in this illustration, corresponding wing openings 148 are arranged in the wing cap.
- the cap 132 is shown in plan view and side view.
- the wing cap 132 has, as can be seen in Figure 12, also two positioning lugs 160, which in corresponding recesses of the wing 130, for example in FIG. 11 and FIG. 12, for example, the cap 132 is shown in plan view and side view.
- the wing cap 132 has, as can be seen in Figure 12, also two positioning lugs 160, which in corresponding recesses of the wing 130, for example in FIG. 11 and FIG. 12, for example, the cap 132 is shown in plan view and side view.
- the wing cap 132 has, as can be seen in Figure 12, also two positioning lugs 160, which in corresponding recesses of the wing 130, for example in FIG. 11 and FIG. 12, for example, the cap 132 is shown in plan view and side view.
- the wing cap 132 has, as can be seen in Figure 12, also two positioning lugs 160, which in corresponding recesses of the wing 130, for example in FIG
- FIG. 11 in the cap 132 connects to the side openings 138 of the wing 130 in FIG.
- the openings 150 of the cap 132 in FIG. 11 establish a connection to the openings 148 of the wing 130 in FIG.
- the wing 130 is shown again in a side view, with the corresponding openings 148 can be seen directly, while lying on the opposite side openings 138 are indicated by dashed lines.
- the two recesses 162 are indicated by dashed lines for the two positioning lugs 160 of Figure 12.
- a one-piece wing 170 is shown in side view and partially cut, which has no caps.
- the wing 170 shows in section relief channels 172 and for the opposite direction of rotation relief channels 174 which extend from the wing side to the wing head and which are dimensioned like all pressure relief devices described above so that they are sufficiently large for pressure relief, but no annoying short circuit between the Represent the pressure and the suction side of the wing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006026376 | 2006-06-07 | ||
PCT/DE2007/000997 WO2007140759A1 (de) | 2006-06-07 | 2007-06-05 | Flügelzellenpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2038555A1 true EP2038555A1 (de) | 2009-03-25 |
EP2038555B1 EP2038555B1 (de) | 2010-10-27 |
Family
ID=38577482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07722510A Not-in-force EP2038555B1 (de) | 2006-06-07 | 2007-06-05 | Flügelzellenpumpe |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2038555B1 (de) |
AT (1) | ATE486218T1 (de) |
DE (2) | DE112007001200A5 (de) |
WO (1) | WO2007140759A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20080382A1 (it) * | 2008-05-22 | 2009-11-23 | Vhit Spa | Paletta con puntali basculanti, e pompa volumetrica rotativa che impiega tale paletta |
EP2299055B1 (de) * | 2009-09-14 | 2014-11-12 | Pierburg Pump Technology GmbH | Flügelzellen-Vakuumpumpe für Kraftfahrzeuge |
CN105156324B (zh) * | 2015-09-11 | 2018-09-04 | 裕克施乐塑料制品(太仓)有限公司 | 一种新型塑料真空泵叶片及真空泵 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1114046A (en) * | 1914-08-24 | 1914-10-20 | Amandus C Roessler | Vacuum-pump. |
DE938405C (de) * | 1953-11-13 | 1956-01-26 | Arthur Pfeiffer Fa | Vakuumpumpe mit Drehkolben und sichelfoermigem Arbeitsraum |
FR2845435B1 (fr) * | 2002-10-08 | 2006-02-17 | Peugeot Citroen Automobiles Sa | Pompe a vide a palette comportant un dispositif de securite |
DE112005002687A5 (de) * | 2004-11-27 | 2007-08-09 | Luk Automobiltechnik Gmbh & Co. Kg | Pumpe |
-
2007
- 2007-06-05 DE DE112007001200T patent/DE112007001200A5/de not_active Withdrawn
- 2007-06-05 EP EP07722510A patent/EP2038555B1/de not_active Not-in-force
- 2007-06-05 WO PCT/DE2007/000997 patent/WO2007140759A1/de active Application Filing
- 2007-06-05 DE DE502007005480T patent/DE502007005480D1/de active Active
- 2007-06-05 AT AT07722510T patent/ATE486218T1/de active
Non-Patent Citations (1)
Title |
---|
See references of WO2007140759A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE502007005480D1 (de) | 2010-12-09 |
DE112007001200A5 (de) | 2009-02-19 |
ATE486218T1 (de) | 2010-11-15 |
WO2007140759A1 (de) | 2007-12-13 |
EP2038555B1 (de) | 2010-10-27 |
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