EP2191168A2 - Hydraulisches spannsystem für einen riementrieb - Google Patents
Hydraulisches spannsystem für einen riementriebInfo
- Publication number
- EP2191168A2 EP2191168A2 EP08786170A EP08786170A EP2191168A2 EP 2191168 A2 EP2191168 A2 EP 2191168A2 EP 08786170 A EP08786170 A EP 08786170A EP 08786170 A EP08786170 A EP 08786170A EP 2191168 A2 EP2191168 A2 EP 2191168A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- housing
- hydraulic
- belt
- rail
- 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.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 239000003595 mist Substances 0.000 claims abstract description 3
- 238000005461 lubrication Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims 3
- 239000010724 circulating oil Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0812—Fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0863—Finally actuated members, e.g. constructional details thereof
- F16H2007/0865—Pulleys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0863—Finally actuated members, e.g. constructional details thereof
- F16H2007/0874—Two or more finally actuated members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0893—Circular path
Definitions
- the present invention relates to a hydraulic tensioning system which is used in traction drives of an internal combustion engine and is provided for tensioning traction means.
- the clamping system comprises a housing with a cylinder in which a hydraulic fluid acted upon by a piston is guided linearly displaceable, which cooperates via a clamping rail with the traction means.
- Traction drives of internal combustion engines are used in the control drive, for driving the camshaft or in the aggregate mode, for driving, for example, an air conditioning compressor, generator, an oil pump or a balancer shaft.
- the traction mechanism drive always requires sufficient bias of the traction means to ensure proper coupling, ie. To avoid a tooth jump in synchronous drives, or to ensure a nearly slip-free drive.
- clamping systems which is fastened via a housing, for example on the machine part or the engine block or cylinder head of the internal combustion engine.
- the invention has for its object to provide a space-optimized hydraulic clamping system for Switzerlandstoffthebe.
- the problem underlying the invention is achieved in that the clamping rail is connected via a hinge pivotally connected to the housing and thus forms a structural unit.
- the hydraulic tensioning system according to the invention is intended for a traction mechanism drive in which a belt circulating in an oil bath or in an oil mist is provided as traction means.
- the tensioning system according to the invention is preferably used.
- the compact design of the hydraulic clamping system, in which the clamping member, the clamping rail is articulated coupled to the housing allows even in tight radii of curvature of the belt installation of the compact space-optimized hydraulic clamping system according to the invention.
- the invention provides to fix the clamping rail in an end position on the housing.
- the tensioning system according to the invention can also be used in chain drives, in which the tensioning rail cooperates with a chain.
- the housing of the tensioning system has a spray nozzle via which a subset of the hydraulic fluid selectively reaches the contact zone.
- the invention includes a tensioning rail with integrated guide roller.
- a tensioning rail with integrated guide roller.
- Underlining the compact design is also provided according to the invention, to equip the hydraulic tensioning system in addition to the pivoting clamping rail with a deflection roller or rigid rail.
- This tensioning system which can also be referred to as a motion module, is preferably suitable for a traction mechanism drive in which, due to tight installation conditions, the belt layout has an accumulation of narrow radii of curvature.
- a clamping rail with integrated guide roller can be combined with a fixedly arranged deflection roller or guide rail.
- it offers to be combined with a stationary positioned pulley with a clamping rail.
- the trained as a motion module hydraulic clamping system according to the present invention can be advantageously assigned to the traction mechanism, that the clamping rail and the guide roller with two separate areas of the traction drive are in operative connection.
- the pivotable clamping rail is assigned to the Lostrum and the stationary deflection roller the Glastrum of the traction mechanism.
- the piston is associated with a force means, in particular a pressure spring integrated in the cylinder of the housing.
- the design of the hydraulic clamping system allows the use of any materials.
- the components, the housing, the piston, the clamping rail and the deflection roller made of aluminum.
- components made from steel or a sintered material, which are combined, for example, with a tensioning rail and a deflecting roller made of plastic, are suitable.
- the tensioning system according to the invention can be advantageously used for oil pump drives of internal combustion engines, for which a tightly dimensioned space is provided.
- the pressure circulation lubrication of the internal combustion engine ensuring, executed as a belt drive oil pump drive can be cost and noise optimized in conjunction with the clamping system of the invention.
- An advantageous further embodiment of the invention provides that at least one of the components, the clamping rail, the guide roller or the guide roller have the belt axially leading rims. This measure ensures that in the operating condition of the belt experiences sufficient axial guidance, whereby a lateral drifting of the belt is prevented by a drive or Abretesrad.
- the clamping rail is fixed to the housing via a securing pin.
- This end position fixation allows a simplified placement of the belt on all associated pulleys of the traction drive.
- this fuse simplifies the installation of the clamping system on the machine part.
- the locking pin causes a cohesion of all components during transport of the pre-assembled clamping system.
- An attachment of the hydraulic clamping system is preferably carried out by means of a screw, via which the housing is detachably attached to a machine part, in particular the crankcase or the cylinder head of the internal combustion engine.
- Figure 1 is an inventive hydraulic clamping system in the installed state
- Figure 2 as a single part a hydraulic clamping system in which the pivotable clamping rail has a guide roller;
- Figure 3 is a largely consistent with Figure 2 clamping system, which includes a fixedly arranged pulley in addition to the pivotable clamping rail.
- FIG. 1 shows a hydraulic tensioning system 1 in the installed state.
- a housing 2 is detachable via attachment points 3a, 3b to an internal combustion engine 4, in particular fastened by means of screwing.
- End side on a cantilevered out of the housing 2 lever 5, a clamping rail 7 is pivotally mounted via a hinge 6. Offset to the joint 6, the clamping rail 7 is supported on an end face of a guided in a cylinder 8 of the housing 2 piston 9.
- the clamping rail 7 is connected to a belt 11 of a traction mechanism 12 in an operative connection.
- a non-positive support of the tensioning rail 7 on the belt 11 causes the acted upon by a hydraulic fluid piston 9.
- the housing 2 and the cylinder 8 is directly connected to a not shown in Figure 1 pressure circulation lubrication of the engine 4 in connection.
- the piston 9 causes in the operating state of the internal combustion engine 4, a force component on the clamping rail 7, whereby it is subjected to force in the counterclockwise direction.
- the space-optimized designed hydraulic tensioning system 1 is assigned to the traction mechanism drive 11, in which the traction means, the belt 11 rotates in an oil bath or an oil-wetted closed space in a clockwise direction.
- the tensioning rail 7 is assigned to a Lostrum 13 of the traction mechanism 12.
- the cylinder 8 of the clamping system 1 includes a spray nozzle 16, via the targeted a subset of the hydraulic fluid in the cylinder 8 as a jet 17 to the outer contour of the Belt 15 arrives.
- FIGS. 2 and 3 show the clamping systems 21, 31, the structure of which largely coincides with the clamping system 1. The same components are therefore provided with matching reference numerals. The following descriptions are limited to the different concepts or components.
- the tensioning system 21 shows the tensioning rail 27, which is associated with a rotatable guide roller 28.
- the shape of the clamping rail 27 and the size of the guide roller 28 is such that in the operating state only a contact between the belt 11 and the guide roller 28 is made.
- the tensioning rail 27 is subjected to a force comparable to the clamping rail 7 depicted in FIG. 1 by the piston 9.
- the clamping rail 27 is fixed in position relative to the housing 2 in an end position.
- the fixation via a locking pin 22 which is inserted into a bore 23 of the cylinder 8 associated tab 24 and another with the bore 23 corresponding bore of the clamping rail 27.
- This end position fixation of the tensioning rail 27 enables on the one hand a easy transport of the clamping system 21 and on the other hand, a simplified assembly of the belt 11th
- the tensioning system 31 has a deflection roller 32 in addition to the tensioning system 21 shown in FIG.
- the rotatably arranged deflection roller 32 is positioned at the end on a lever 33 connected to the housing 2.
- the guide roller 28 of the tensioning rail 27 is associated with the tensioning body 13 and the deflection roller is assigned to the tensioning element 14 of the traction mechanism drive 12.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200710039132 DE102007039132A1 (de) | 2007-08-18 | 2007-08-18 | Hydraulisches Spannsystem für einen Riementrieb |
| PCT/EP2008/059272 WO2009024415A2 (de) | 2007-08-18 | 2008-07-16 | Hydraulisches spannsystem für einen riementrieb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2191168A2 true EP2191168A2 (de) | 2010-06-02 |
Family
ID=39884640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08786170A Withdrawn EP2191168A2 (de) | 2007-08-18 | 2008-07-16 | Hydraulisches spannsystem für einen riementrieb |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2191168A2 (de) |
| DE (1) | DE102007039132A1 (de) |
| WO (1) | WO2009024415A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009007697B4 (de) * | 2009-02-05 | 2015-08-13 | Schaeffler Technologies AG & Co. KG | Spanneinrichtung für Zugmittel eines Verbrennungsmotors |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US616423A (en) | 1898-12-20 | priem | ||
| JPH0730821B2 (ja) * | 1986-01-25 | 1995-04-10 | 富士重工業株式会社 | ねじ式オートテンショナ |
| JPH10231905A (ja) | 1997-02-20 | 1998-09-02 | Tsubakimoto Chain Co | チェーン張力緩和装置 |
| US6106423A (en) | 1999-04-05 | 2000-08-22 | Borgwarner Inc. | Dual tensioner system for balance shaft drive |
| DE102004043733A1 (de) * | 2004-09-10 | 2006-03-16 | Ina-Schaeffler Kg | Gehäuse eines Spannsystems mit integrierter Spritzdüse |
| DE102005010749A1 (de) * | 2005-03-09 | 2006-09-21 | Schaeffler Kg | Spannschiene für einen Zugmitteltrieb |
-
2007
- 2007-08-18 DE DE200710039132 patent/DE102007039132A1/de not_active Ceased
-
2008
- 2008-07-16 WO PCT/EP2008/059272 patent/WO2009024415A2/de not_active Ceased
- 2008-07-16 EP EP08786170A patent/EP2191168A2/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009024415A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007039132A1 (de) | 2009-02-19 |
| WO2009024415A2 (de) | 2009-02-26 |
| WO2009024415A3 (de) | 2009-07-30 |
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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 |
|
| 17P | Request for examination filed |
Effective date: 20100318 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| 17Q | First examination report despatched |
Effective date: 20110527 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20140325 |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230522 |