EP1194680B1 - Hubkolbenbrennkraftmaschine mit einer nockenwelle - Google Patents
Hubkolbenbrennkraftmaschine mit einer nockenwelle Download PDFInfo
- Publication number
- EP1194680B1 EP1194680B1 EP00938662A EP00938662A EP1194680B1 EP 1194680 B1 EP1194680 B1 EP 1194680B1 EP 00938662 A EP00938662 A EP 00938662A EP 00938662 A EP00938662 A EP 00938662A EP 1194680 B1 EP1194680 B1 EP 1194680B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- camshaft
- combustion engine
- disc
- reciprocating internal
- bore
- 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.)
- Expired - Lifetime
Links
Images
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
- F01M2013/0422—Separating oil and gas with a centrifuge device
Definitions
- the invention relates to a reciprocating internal combustion engine with a Camshaft according to the preamble of claim 1.
- crankcase In reciprocating internal combustion engines arrive due to the high Pressures and the reciprocating motion of the pistons of fuel gases over the piston rings in the crankcase. These fuel gases, also called “blow-by", increase the pressure in the crankcase, damage the lubricating oil and complicate the sealing of the crankcase.
- the crankcase must therefore be vented. This This is usually done by having a connection between the crankcase and the intake system of the reciprocating internal combustion engine creates. As a result, no pollutants get into the environment.
- oil separators To the lubricating oil, which in finely divided form in the crankcase gases is contained, from the intake system of the reciprocating internal combustion engine to keep away, oil separators are used, over which the crankcase gases are routed before they get into the intake system of the reciprocating internal combustion engine.
- a generic Hubkolbenbrennkraftmaschine is from the U.S. Patent 4,651,704.
- U.S. Patent 4,651,704 discloses a Internal combustion engine with a crankcase ventilation and a Oil separation, in which a hollow camshaft, more precisely a camshaft having a substantially centric, axial bore, as a separation chamber for the in the crankcase gases used heavier oil components used becomes. From this axial bore lead from radial holes in the space surrounding the camshaft, wherein the axial bore is connected to an inlet channel.
- the surrounding space communicates with the crankcase so that the crankcase gases via the radial bores and the axial bore in the camshaft in a short path in an inlet channel can be passed. Due to the high speed the camshaft, the heavier oil components become the Crankcase gases are transported through the radial holes to the outside, while the lighter components of the crankcase gases through the pressure gradient between the space around the camshaft and the intake passage via the hollow camshaft to the intake system get the reciprocating internal combustion engine.
- the invention is based on the object, the oil separation to improve by increasing the spin effect.
- a significant advantage of the invention is the improvement the oil separation by an increased centrifugal effect, wherein the radial bore of the camshaft by a radial Bore in a disc is extended on the camshaft is provided.
- the disc can be integral with the camshaft molded or separately mounted on the camshaft be pressed onto the camshaft, clamped, bolted, glued, soldered or welded.
- the axial bore can run centrally through the camshaft, provided the lubrication of the camshaft, especially their Warehouse, done from outside. If the camshaft is inside Lubricated oil holes, runs the axial bore for venting a little radially offset to the lubricating oil supply, where both systems are strictly separated.
- the disc has at least in addition to the radial bore an axially parallel bore, with the radial bore connected is.
- the entering through the axis-parallel hole Crankcase gases are separated by the centrifugal force, wherein the oil components thrown by the radial bore to the outside while the gaseous components are passing through the pressure gradient in the axial centric bore of the crankshaft and get into the intake system from there.
- a camshaft 1 of a generic reciprocating internal combustion engine with cam 2 is in a housing 5 by means of bearings 3rd rotatably mounted. It is at the end of the housing 5 out through a Seal 4 sealed.
- the housing 5 may be a cylinder head of a Hubkolbenbrennkraftmaschine be and surround a room 13, which surrounds the camshaft 1 and with a not shown Crankcase is connected.
- the camshaft 1 has an axial bore 6 from which radial bores 7 originate, which lead into the room 13.
- the axial bore 6 of the camshaft 1 has an outlet at a front end 16, with an inlet channel not shown in detail Hubkolbenbrennkraftmaschine is connected.
- crankcase gases Due to the pressure gradient from the crankcase to the inlet channel flow crankcase gases through the radial holes 7 and the axial bore 6 and the outlet 16 in the inlet channel.
- the flow direction of the crankcase gases is denoted by 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
- Fig. 1
- schematisch eine Nockenwelle einer gattungsgemäßen Hubkolbenbrennkraftmaschine, und
- Fig. 2
- eine Nockenwelle einer erfindungsgemäßen Hubkolbenbrennkraftmaschine in einem vergrößerten Teilschnitt.
Claims (3)
- Hubkolbenbrennkraftmaschine mit einer Nockenwelle (1) zum Steuern von Gaswechselventilen und einer Kurbelgehäuseentlüftung, die über einen Ölabscheider mit Einlaßkanälen verbunden ist, wobei die Nockenwelle (1) eine im wesentlichen zentrisch verlaufende, axiale Bohrung (6) aufweist, von der aus mindestens eine radiale Bohrung (7) in den die Nockenwelle (1) umgebenden Raum (13) führt und die an einen Einlaßkanal angeschlossen ist,
dadurch gekennzeichnet, daß auf der Nockenwelle (1) im Bereich der radialen Bohrung (7) eine Scheibe (10) mit mindestens einer radialen Bohrung (11) vorgesehen ist, die die radiale Bohrung (7) der Nockenwelle (1) verlängert und daß von der radialen Bohrung (11) der Scheibe (10) mindestens eine im wesentlichen achsparallele Bohrung (12) zu einer Stirnseite (14, 15) der Scheibe (10) führt. - Hubkolbenbrennkraftmaschine nach Anspruch 1,
dadurch gekennzeichnet, daß die Scheibe (10) einstückig an die Nockenwelle (1) angeformt ist. - Hubkolbenbrennkraftmaschine nach Anspruch 1,
dadurch gekennzeichnet, daß die Scheibe (10) auf die Nockenwelle (1) gepreßt, geklemmt, geschraubt, geklebt, gelötet oder geschweißt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19931740A DE19931740C2 (de) | 1999-07-08 | 1999-07-08 | Hubkolbenbrennkraftmaschine mit einer Nockenwelle |
DE19931740 | 1999-07-08 | ||
PCT/EP2000/004586 WO2001004464A1 (de) | 1999-07-08 | 2000-05-20 | Hubkolbenbrennkraftmaschine mit einer nockenwelle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1194680A1 EP1194680A1 (de) | 2002-04-10 |
EP1194680B1 true EP1194680B1 (de) | 2005-03-02 |
Family
ID=7914023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00938662A Expired - Lifetime EP1194680B1 (de) | 1999-07-08 | 2000-05-20 | Hubkolbenbrennkraftmaschine mit einer nockenwelle |
Country Status (4)
Country | Link |
---|---|
US (1) | US6502565B2 (de) |
EP (1) | EP1194680B1 (de) |
DE (1) | DE19931740C2 (de) |
WO (1) | WO2001004464A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6758197B2 (en) | 2000-09-01 | 2004-07-06 | Bombardier-Rotax Gmbh | Blow-by gas separator and decompressor for an internal combustion engine |
AU2001287024A1 (en) * | 2000-09-01 | 2002-03-13 | Bombardier Inc. | Blow-by gas separator and decompressor for an internal combustion engine |
US6584964B1 (en) | 2002-08-13 | 2003-07-01 | Briggs & Stratton Corporation | Engine having a centrifugal oil separator |
DE10323261A1 (de) * | 2003-05-23 | 2004-12-16 | Daimlerchrysler Ag | Zentrifugal-Ölabscheider für Blow-By-Gase einer Brennkraftmaschine |
DE102004008826A1 (de) * | 2004-02-20 | 2005-09-08 | Mahle Filtersysteme Gmbh | Zentrifugal-Ölnebelabscheider in einem Verbrennungsmotor |
AT501031B1 (de) | 2004-09-02 | 2006-11-15 | Avl List Gmbh | Brennkraftmaschine mit zumindest einer mindestens einen entlüftungskanal aufweisenden nockenwelle |
EP1880085B2 (de) | 2005-05-10 | 2013-10-09 | Mahle International GmbH | In eine axial hohle welle eines verbrennungsmotors integrierte zentrifugal-ölnebelabscheidereinrichtung |
DE102005034273A1 (de) * | 2005-07-22 | 2006-06-14 | Daimlerchrysler Ag | Brennkraftmaschine |
US7455057B2 (en) * | 2005-11-14 | 2008-11-25 | Brp-Rotax Gmbh & Co. Kg | Internal combustion engine blow-by gas ventilation system |
DE102006012611A1 (de) * | 2006-03-20 | 2007-09-27 | Mahle International Gmbh | Zylinderkopf eines Verbrennungsmotors |
DE102006024817A1 (de) * | 2006-05-29 | 2007-12-06 | Mahle International Gmbh | Zylinderkopf eines Verbrennungsmotors |
JP4884279B2 (ja) * | 2007-03-30 | 2012-02-29 | 本田技研工業株式会社 | ブリーザ装置を備える内燃機関 |
US8166958B2 (en) * | 2007-08-15 | 2012-05-01 | GM Global Technology Operations LLC | Positive crankcase ventilation system for an internal combustion engine |
US20100006076A1 (en) * | 2008-07-08 | 2010-01-14 | Mavinahally Nagesh S | Breather System for a Four Stroke Engine |
KR101028553B1 (ko) * | 2008-11-25 | 2011-04-11 | 기아자동차주식회사 | 캠으로 구동하는 연료 펌프 윤활장치 |
DE102010014546A1 (de) * | 2010-04-10 | 2011-10-13 | Mahle International Gmbh | Brennkraftmaschine |
DE102011000458A1 (de) * | 2011-02-02 | 2012-08-02 | Thyssenkrupp Presta Teccenter Ag | Welle, insbesondere Nockenwelle mit einem hohlen Wellenabschnitt |
CN102434250B (zh) * | 2011-11-23 | 2013-11-20 | 奇瑞汽车股份有限公司 | 一种曲轴箱通风的油气分离结构的运作方法 |
US9181883B2 (en) | 2013-01-18 | 2015-11-10 | Nagesh S. Mavinahally | Four cycle engine carburetors |
DE102013108770A1 (de) * | 2013-08-13 | 2015-02-19 | Thyssenkrupp Presta Teccenter Ag | Nockenwellenbaugruppe sowie Nockenwellenanordnung |
CN103790663B (zh) * | 2013-12-31 | 2017-01-25 | 广西玉柴机器股份有限公司 | 集成凸轮轴 |
US10473206B2 (en) * | 2015-07-02 | 2019-11-12 | Deere & Company | Transmission vent |
DE102016008299B4 (de) * | 2016-07-06 | 2020-12-31 | Neander Motors Ag | Ölabscheideeinrichtung für eine Brennkraftmaschine |
US11719326B2 (en) * | 2021-04-19 | 2023-08-08 | The Boeing Company | Demister for a gearing system and method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1590886A (de) * | 1968-11-06 | 1970-04-20 | ||
GB1508212A (en) * | 1975-02-10 | 1978-04-19 | Rolls Royce | Apparatus for separating suspension of liquids in gas |
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 |
JPH03160107A (ja) * | 1989-11-15 | 1991-07-10 | Honda Motor Co Ltd | 頭上弁型エンジンにおけるブリーザ装置 |
US5261380A (en) * | 1992-07-15 | 1993-11-16 | Ford Motor Company | Crankcase ventilation system for automotive engine |
DE4237128A1 (de) * | 1992-11-03 | 1994-01-27 | Bayerische Motoren Werke Ag | Kurbelgehäuseentlüftung mit einer Zentrifuge |
JP2769984B2 (ja) * | 1994-12-22 | 1998-06-25 | リョービ株式会社 | ブローバイガスの排出構造 |
DE19706383C2 (de) * | 1997-02-19 | 2000-05-18 | Daimler Chrysler Ag | Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine |
DE19803872C2 (de) * | 1998-01-31 | 2001-05-10 | Daimler Chrysler Ag | Entlüfungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine |
-
1999
- 1999-07-08 DE DE19931740A patent/DE19931740C2/de not_active Expired - Fee Related
-
2000
- 2000-05-20 WO PCT/EP2000/004586 patent/WO2001004464A1/de active IP Right Grant
- 2000-05-20 EP EP00938662A patent/EP1194680B1/de not_active Expired - Lifetime
-
2002
- 2002-01-07 US US10/041,969 patent/US6502565B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1194680A1 (de) | 2002-04-10 |
US20020083933A1 (en) | 2002-07-04 |
US6502565B2 (en) | 2003-01-07 |
DE19931740C2 (de) | 2001-06-13 |
DE19931740A1 (de) | 2001-01-18 |
WO2001004464A1 (de) | 2001-01-18 |
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