EP2406470A1 - Wellenkörper mit integrierter ölabscheideeinrichtung - Google Patents
Wellenkörper mit integrierter ölabscheideeinrichtungInfo
- Publication number
- EP2406470A1 EP2406470A1 EP10701809A EP10701809A EP2406470A1 EP 2406470 A1 EP2406470 A1 EP 2406470A1 EP 10701809 A EP10701809 A EP 10701809A EP 10701809 A EP10701809 A EP 10701809A EP 2406470 A1 EP2406470 A1 EP 2406470A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft body
- oil
- discharge opening
- gas
- bearing
- 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
- 238000000926 separation method Methods 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 210000003027 ear inner Anatomy 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0422—Separating oil and gas with a centrifuge device
Definitions
- the present invention relates to a shaft body, in particular a camshaft with integrated oil separator according to the preamble of claim 1.
- a hollow shaft designed as a camshaft with an integrated separation device is already known from WO 2006/119737 A1, wherein a swirl generator integrated into the cavity of the camshaft is provided as end separator in addition to a preseparator arranged on the outer circumference of the camshaft.
- the present invention has for its object to provide a generic shaft body with integrated ⁇ labscheide issued through which a compact and space-saving design is guaranteed.
- a shaft body having the features of claim 1.
- the at least one outlet side and substantially radially arranged discharge opening is arranged with advantage all available discharge openings for the oil to be discharged and the gas to be discharged in the region of a bearing device enclosing the shaft body and are and at least one Discharge opening of the shaft body corresponds to at least one corresponding discharge channel of the bearing device, an extremely space-saving and compact design of the shaft body is ensured with integrated oil separator.
- the discharge of the separated oil by one or more radial shell-side discharge openings in the shaft body, which correspond to at least one discharge channel of the bearing device, take place, while the discharge of the gas stream could be made axially over the open end of the hollow shaft body, for the before - zugten case that both the derivation of the oil and the discharge of the purified gas via radial shell-side discharge openings should take place, the at least one shell-side Gasabriosö gleich seen in the flow direction behind the at least one shell-side ⁇ labriosö Stamm.
- the shaft body wall is a provided corresponding trained flow guide in the cavity of the shaft body.
- This flow-guiding element can be designed as a plug-like component, such that the axially flowing gas is diverted at least in part in the direction of the at least one gas discharge opening.
- the flow-guiding element can be substantially cone-shaped and can be aligned with its conical tip against the flow path.
- the flow guide may be gas or impermeable to air, so that the entire gas flow is diverted / derived by the flow guide radially outward into the gas discharge opening (s).
- the flow-guiding element can also be designed such that it axially passes a predetermined gas or air flow at a known flow pressure while the remaining part is diverted / discharged radially outwards into the gas discharge openings.
- the flow element may also have an axial bypass channel, which is released via a pressure-dependent bypass valve (eg with a spring-loaded check valve) when exceeding a predetermined pressure, so that when exceeding the predetermined pressure, a portion of the purified gas stream via the bypass valve and a remaining part is discharged via the shell-side gas discharge opening (s).
- the integrated oil separator is advantageously designed in multiple stages.
- a first ⁇ labscheidecut is advantageously formed by a so-called. Swirl generator.
- This swirl generator can be designed, for example, as a body extending in the axial direction in the cavity of the shaft body, which has at least one helix circumferentially, such that through the helix thread between the body of the swirl generator and the inner wall of the shaft body a flow channel for guiding the introduced oil bath.
- laden gas or the oil-laden (or loaded with oil droplets) air hereinafter also referred to as blow-by gas or oil mist
- a second oil separation stage may be formed by an oil separation ring arranged downstream of the swirl generator in the flow direction.
- the oil separation ring is advantageously solid in such a way that in the edge-side flow region of the cavity of the shaft body it represents a corresponding flow obstacle for the gas (or air) enriched with oil (due to the rotation / centrifugal force) in this region.
- FIG. 1 shows a partial region of the shaft body according to the invention with the mantelseiti- gene discharge channels for oil and gas arranged in the region of a shaft bearing bearing device bearing in a first possible embodiment in longitudinal section,
- Fig. 3 seen an oil separation ring in a possible first embodiment in cross section
- FIG. 4 seen the ⁇ labscheidering of FIG. 3 in a further possible embodiment in partial cross-section.
- FIG. 1 shows a partial longitudinal section of a shaft body 2 rotatably mounted in a bearing device 4 and designed as a hollow shaft with integrated oil separation device.
- the bearing device 4 comprises a bearing body 4k, which can be designed either in the form of a bearing block (formed for example by a cylinder head part) or as a separate component which can be fastened to the cylinder head.
- the bearing device 4 in the form of the bearing body 4k, which is formed on its hollow cylindrical inner surface so as to form a sliding bearing with a hardened portion (bearing portion 2a) of the shaft body 2, be executed.
- this may have over its hollow cylindrical inner surface a plurality of rolling elements 4w, via which the at least partially surface-hardened body 2 is rotatably mounted. In the latter case, also illustrated in FIGS.
- the bearing device has a sealing ring 4d, by means of which the adjacent gas discharge channel 4a is sealed off from the area with rolling elements 4w. This prevents that not purified gas is sucked into the gas discharge channel and the internal combustion engine is supplied.
- the shaft body 2 has at least one substantially radial discharge opening 3b for discharging the oil separated from the so-called blow-by gas. According to the illustrated embodiment, radial discharge openings 3a, 3b for gas and oil are present, wherein the shaft body 2 is supported by the bearing device 4 in the region of the discharge openings 3a, 3b.
- the storage device 4 has for discharging the purified gas and for discharging the separated oil in each case one with the respective discharge opening 3a; 3b corresponding discharge channel 4a; 4b for gas or oil.
- a radial sealing ring 4r is arranged in the bearing device 4 or in its bearing body 4k, which has at least one oil channel 4b 1 corresponding to the oil discharge opening 3b and also to the oil discharge channel 4b.
- the radial sealing ring 4r On its inner surface, the radial sealing ring 4r has a circumferential groove N, into which the oil deposited on the inner wall of the hollow body 2 and discharged through the circumferentially distributed oil discharge openings 3b can be taken up and discharged via the oil channel 4b 'opening into the groove N.
- the shaft body 2 is held rotatably supported in the bearing device 4 via the rolling elements 4w.
- the bearing section (s) 2a of the shaft body 2 interacting with the rolling elements 4w (rolling bearings) or with regions of the bearing body 4k (sliding bearings) can be designed as hardened and / or surface-treated body part (s). If the bearing device 4 is not designed as a plain bearing but as a roller bearing, roller-body-free regions are provided for arranging the discharge openings for oil or for oil and gas in the bearing device 4 or in the bearing body 4k.
- At least one radial discharge opening (or bore) 3a, 3b is provided for discharging gas or oil.
- a plurality of annularly distributed over the circumference of the shaft body 2 arranged holes are provided as Ablite- openings for gas or oil, such that one of a plurality of annularly distributed over the circumference arranged holes existing bore ring for discharging the cleaned Blowby Gas and a bore ring for discharging the separated from the blow-by gas oil is formed.
- the or each shell-side discharge opening 3a, 3b acts together with a discharge channel 4a, 4b formed in the storage device 4 or in the bearing body 4k and corresponding to the respective discharge opening 3a, 3b.
- the one with the or the respective discharge opening (s) 3a, 3b corresponding discharge channel 4a, 4b is executed within the bearing device 4 as an annular channel with at least one corresponding radial Ableitabites for discharging the réelleêtden from the shaft body 2 oil or gas.
- a flow-guiding element 6 is arranged within the cavity 3 of the shaft body 2 through which the axially flowing gas flow into which at least one radial gas discharge opening 3a is diverted.
- the flow guide 6 is circumferentially provided with a sealing element D in order to be able to divert as much as possible of all gas fractions of the cleaned blow-by gas via the radial discharge openings 3a.
- the flow guide 6 is substantially plug-shaped or cork-like and has on its end face, which faces the oncoming gas flow, a substantially centrally oriented conical projection 6a. On the opposite end face, the flow guide element 6 has a threaded bore 6c. This is used in particular for easier disassembly of the device shown.
- an oil guide element 6b To the by the integrated ⁇ labscheide founded on the inner wall 2b of the shaft body 2 deposited ⁇ ! to be able to derive separated, is disposed between the oil discharge opening 3b and the at least one arranged in the flow direction S behind the at least one ⁇ labzhouö réelle 3b gas discharge opening 3a, an oil guide element 6b.
- the oil guide element 6b as shown in Fig.
- the oil guide element 6b ' may be formed as a separate component in the form of a single separating ring arranged between the gas discharge openings 3a and the oil discharge openings 3b.
- the integrated oil separation device advantageously comprises at least two differently acting oil separation elements.
- a first ⁇ labscheideelement example in the form of a so-called. Swirl generator (not shown) is formed, while a second, the first ⁇ labscheideelement downstream seen in the flow direction S ⁇ labscheideelement is designed in the form of a ⁇ labscheideringes 8.
- FIGS. 3 and 4 each show a possible embodiment of an oil separation ring.
- the oil separation ring 8 is substantially solid and represents a large flow obstacle in the form of a baffle element for the flow of the blow-by gas in the region of the inner wall of the shaft body 2.
- the oil particles floating in the blow-by gas can be used for the rapid change of direction on the oil separation ring 8 do not follow, collide against the face of the oil separator ring 8 and are thus separated from the oil mist.
- the oil separation ring 8 has a plurality of axially extending recesses 8a, via which the oil particles deposited on the wall side or the oil film formed therefrom can continue to flow in the direction of the oil discharge opening 3b in the flow direction S on the wall side.
- the oil separator ring 8 advantageously has a system of interconnected cavities, so that a labyrinth of cavities penetrating the oil separation ring 8 is formed.
- the end face of the oil separation ring 8 further represents a baffle element, whereas the inner labyrinth is a combination of baffle and deflection elements.
- baffle and deflecting elements lighter oil particles are also separated from the oil mist, so that the oil mist flowing behind the oil separation ring 8 as seen in the flow direction S can be regarded as purified gas or purified air.
- Materials for the aforementioned embodiments of the oil separation ring 8 may be, for example, porous plastics or synthetic materials.
- the ⁇ labscheidering 8 also comprises a plastic and / or metal braid which forms a plurality of cavities and labyrinths, wherein the ⁇ labscheidering 8 then preferably comprises a support ring which supports the braid and also serves to fix the braid in the cavity 3 of the shaft body 2.
- the oil separation ring 8 comprises a perforated sheet metal ring.
- such an oil separation ring 8 comprises a plurality of sheet metal rings, arranged one behind the other and twisted or staggered in the respective rows of holes or hole patterns, which are spaced apart from one another by interconnected connector elements 8b and connected to one another.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009012402A DE102009012402A1 (de) | 2009-03-10 | 2009-03-10 | Wellenkörper mit integrierter Ölabscheideeinrichtung |
PCT/EP2010/000230 WO2010102688A1 (de) | 2009-03-10 | 2010-01-16 | Wellenkörper mit integrierter ölabscheideeinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2406470A1 true EP2406470A1 (de) | 2012-01-18 |
EP2406470B1 EP2406470B1 (de) | 2013-06-26 |
Family
ID=42124616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10701809.5A Not-in-force EP2406470B1 (de) | 2009-03-10 | 2010-01-16 | Wellenkörper mit integrierter ölabscheideeinrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US9151186B2 (de) |
EP (1) | EP2406470B1 (de) |
JP (1) | JP2012519796A (de) |
CN (1) | CN102325967A (de) |
DE (1) | DE102009012402A1 (de) |
WO (1) | WO2010102688A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010019131A1 (de) * | 2010-04-30 | 2011-11-03 | Mahle International Gmbh | Brennkraftmaschine |
DE102011000458A1 (de) * | 2011-02-02 | 2012-08-02 | Thyssenkrupp Presta Teccenter Ag | Welle, insbesondere Nockenwelle mit einem hohlen Wellenabschnitt |
JP6031594B2 (ja) * | 2013-04-12 | 2016-11-24 | 本田技研工業株式会社 | 車両のオイル吸入装置 |
DE102013106332A1 (de) * | 2013-06-18 | 2014-12-18 | Thyssenkrupp Presta Teccenter Ag | Ölabscheideeinrichtung, insbesondere für eine Kurbelgehäuseentlüftung einer Brennkraftmaschine |
DE102013108770A1 (de) | 2013-08-13 | 2015-02-19 | Thyssenkrupp Presta Teccenter Ag | Nockenwellenbaugruppe sowie Nockenwellenanordnung |
DE102014216520A1 (de) * | 2014-08-20 | 2016-02-25 | Schaeffler Technologies AG & Co. KG | Selbstreinigende Filteranordnung und Wälzlageranordnung, sowie Verfahren zur Selbstreinigung |
US10473206B2 (en) * | 2015-07-02 | 2019-11-12 | Deere & Company | Transmission vent |
CN108602036B (zh) * | 2015-11-24 | 2021-08-17 | 国际壳牌研究有限公司 | 粒子分离装置 |
DE102016008299B4 (de) * | 2016-07-06 | 2020-12-31 | Neander Motors Ag | Ölabscheideeinrichtung für eine Brennkraftmaschine |
US11466602B2 (en) * | 2016-12-02 | 2022-10-11 | Arctic Cat Inc. | Breather shaft |
DE102017114907A1 (de) * | 2017-07-04 | 2019-01-10 | Thyssenkrupp Ag | Bauteil, Hohlwelle und Verfahren zur Herstellung einer Hohlwelle |
DE102019102894B3 (de) | 2019-02-06 | 2020-06-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Zentrifugalabscheider |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1979025A (en) * | 1934-10-30 | Statfs patfnt offiff | ||
US2818047A (en) * | 1954-11-22 | 1957-12-31 | Continental Motors Corp | Centrifugal breather |
JPS5392973A (en) * | 1977-01-26 | 1978-08-15 | Sanetsu Kk | Oil mist remover |
JPS585044Y2 (ja) * | 1979-04-16 | 1983-01-28 | 日産自動車株式会社 | 内燃機関のブロ−バイガス環元装置用オイルセパレ−タ |
JPS612259Y2 (de) * | 1981-04-24 | 1986-01-24 | ||
JPS61175213A (ja) * | 1985-01-30 | 1986-08-06 | Honda Motor Co Ltd | エンジンにおけるカムケ−スのブリ−ザ装置 |
JPH08284634A (ja) * | 1995-04-07 | 1996-10-29 | Suzuki Motor Corp | ブローバイガスの気液分離装置 |
US6308621B1 (en) * | 1999-06-14 | 2001-10-30 | Heidelberger Druckmaschinen Ag | Roller bearing lubrication system and method |
DE10226695A1 (de) * | 2002-06-15 | 2003-12-24 | Daimler Chrysler Ag | Zentrifugal-Ölabscheider in einem Kurbelgehäuse einer Brennkraftmaschine |
DE102004045630A1 (de) * | 2004-09-21 | 2006-04-06 | Daimlerchrysler Ag | Zentrifugalabscheider |
DE102005042720B4 (de) * | 2004-09-23 | 2016-09-22 | Mahle Filtersysteme Gmbh | Axialzyklon |
DE102005022254A1 (de) * | 2005-05-10 | 2006-11-30 | Mahle International Gmbh | In eine axial hohle Nockenwelle eines Verbrennungsmotors integrierte Zentrifugal-Ölnebelabscheidereinrichtung |
WO2006119737A1 (de) | 2005-05-10 | 2006-11-16 | Mahle International Gmbh | In eine axial hohle welle eines verbrennungsmotors integrierte zentrifugal-ölnebelabscheidereinrichtung |
US7455057B2 (en) * | 2005-11-14 | 2008-11-25 | Brp-Rotax Gmbh & Co. Kg | Internal combustion engine blow-by gas ventilation system |
US8166958B2 (en) * | 2007-08-15 | 2012-05-01 | GM Global Technology Operations LLC | Positive crankcase ventilation system for an internal combustion engine |
DE102009012400A1 (de) * | 2009-03-10 | 2010-09-23 | Thyssenkrupp Presta Teccenter Ag | Hohlkörper mit integrierter Ölabscheideeinrichtung |
DE102009012401A1 (de) * | 2009-03-10 | 2010-09-23 | Thyssenkrupp Presta Teccenter Ag | Hohlkörper mit integrierter Ölabscheideeinrichtung |
-
2009
- 2009-03-10 DE DE102009012402A patent/DE102009012402A1/de not_active Ceased
-
2010
- 2010-01-16 US US13/203,895 patent/US9151186B2/en active Active
- 2010-01-16 JP JP2011553295A patent/JP2012519796A/ja active Pending
- 2010-01-16 EP EP10701809.5A patent/EP2406470B1/de not_active Not-in-force
- 2010-01-16 CN CN2010800089706A patent/CN102325967A/zh active Pending
- 2010-01-16 WO PCT/EP2010/000230 patent/WO2010102688A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2010102688A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2406470B1 (de) | 2013-06-26 |
DE102009012402A1 (de) | 2010-09-23 |
WO2010102688A1 (de) | 2010-09-16 |
JP2012519796A (ja) | 2012-08-30 |
US9151186B2 (en) | 2015-10-06 |
CN102325967A (zh) | 2012-01-18 |
US20110312427A1 (en) | 2011-12-22 |
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