EP1337744B1 - Viertakt-verbrennungsmotor - Google Patents

Viertakt-verbrennungsmotor Download PDF

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Publication number
EP1337744B1
EP1337744B1 EP01998720A EP01998720A EP1337744B1 EP 1337744 B1 EP1337744 B1 EP 1337744B1 EP 01998720 A EP01998720 A EP 01998720A EP 01998720 A EP01998720 A EP 01998720A EP 1337744 B1 EP1337744 B1 EP 1337744B1
Authority
EP
European Patent Office
Prior art keywords
crankcase
oil
lubricating oil
internal combustion
combustion engine
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
Application number
EP01998720A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1337744A1 (de
Inventor
Roland Kirchberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1337744A1 publication Critical patent/EP1337744A1/de
Application granted granted Critical
Publication of EP1337744B1 publication Critical patent/EP1337744B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F01M3/00—Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/08—Separating lubricant from air or fuel-air mixture before entry into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/26—Four-stroke engines characterised by having crankcase pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Definitions

  • the invention relates to a four-stroke internal combustion engine with at least one cylinder, a crankcase pump forming a crankcase, which is connected via a respective valve on the one hand to a supply line for fresh air and on the other hand to a connecting the crankcase with an inlet channel of the cylinder intake, with a a conveyor for lubricating oil arranged container for lubricating oil, comprising a crankcase and an opening provided in the intake oil separator oil circuit and with a device for injecting fuel into the intake pipe or into the combustion chamber of the cylinder.
  • the invention is therefore the object of a four-stroke internal combustion engine of the type described in such a way that despite advantageous design requirements for the crankcase pump good oil lubrication within the crankcase with a relatively small amount of oil can be ensured without adverse effects on the acceleration behavior of the engine to have to.
  • the invention solves this problem by the fact that the conveyor connected to the container has a line for injecting lubricating oil into the crankcase and that the suction line leads, bypassing the container to the oil separator.
  • Lubricating oil from an oil separator chamber of the oil separator can be returned to the container for lubricating oil via a return line, so that the oil circuit closes via this container.
  • Another possibility is to connect the oil separator to the crankcase itself via a return line from an oil separation chamber, resulting in an oil circuit comprising only the crankcase and the oil separator.
  • the connected to the container conveyor with the line for injecting lubricating oil in the crankcase is used in this case only to compensate for oil losses.
  • Essential for a low consumption of lubricating oil is a good separation of the lubricating oil from the pre-compressed combustion air flow.
  • the required high deposition rate can be advantageously ensured if the oil separator consists of a cyclone separator.
  • the lubricating oil can be injected at different locations in the crankcase, for example, components with high Lubricating demand to supply preferably with lubricating oil, there are particularly favorable injection conditions when the line for the lubricating oil is connected at least to a nozzle provided in the region of the mouth of the supply line for the fresh air. In fact, an additional distribution effect for the lubricating oil can be achieved via the fresh air flowing into the crankcase.
  • the cylinder block 1 forms the one part 2 of a crankcase 3, the other part of which is designed as a cover 4.
  • the connecting rod 7 of the piston 8 is mounted at least one cylinder 9
  • the cylinder head 10 has at least one inlet channel 11 with an inlet valve 12 and an outlet channel 13 with an outlet valve 14.
  • crankcase 3 together with the piston 8, a crankcase pump, is sucked in through the fresh air and compressed.
  • the crankcase 3 is connected via a check valve 15 to a supply line 16 for fresh air.
  • an intake 17 for the pre-compressed in the crankcase 3 combustion air via a check valve 18 at.
  • a Oil separator 19 turned on, which is designed as a cyclone separator with a ⁇ labscheidehunt 20, in which coming from the crankcase 3 branch 21 of the intake passage 17 opens tangentially, while the connecting branch 22 to the inlet channel 11 for a central air outlet from the ⁇ labscheidehunt 20 provides.
  • an injector 23 is provided for fuel, so that via the inlet channel 11, a precompressed fuel-air mixture is sucked.
  • a return line 24 leads from the ⁇ labscheidehunt 20 to a container 25 for lubricating oil, which circulates in an oil circuit comprising a loadable via a conveyor 26 line 27, which in the region of the mouth of the supply line 16 in the crankcase 3 projecting nozzle 28 supplied with lubricating oil.
  • the lubricating oil which may have been injected into the crankcase 3 via a plurality of nozzles and whose distribution in the crankcase 3 is assisted by the intake fresh air, ensures sufficient oil lubrication within the crankcase 3.
  • the return line 24 opens according to the embodiment of FIG. 2 not in the container 25, but in the crankcase 3 itself, so that the oil circuit through the crankcase 3, bypassing the container 25 via the oil separator 19 concludes with the advantage that from the container 25 in the crankcase 3 injected lubricating oil is not loaded by fuel, which passes from the cylinder 9 into the crankcase 3.
  • the invention is of course not limited to the illustrated embodiment.
  • the fuel injection could not be provided in the region of the intake line 17, but take place directly into the combustion chamber 29.
  • the injection of the lubricating oil in the region of the mouth of the supply line 16 for the fresh air is not mandatory.
  • the container 25 for the lubricating oil could be part of a further oil circuit of the engine.
  • the conveyor 26 for the lubricating oil can do without oil pump. In such a case, oil production could be ensured by means of pressure pulsations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Valve Device For Special Equipments (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP01998720A 2000-11-30 2001-11-28 Viertakt-verbrennungsmotor Expired - Lifetime EP1337744B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0201100A AT411091B (de) 2000-11-30 2000-11-30 Viertakt-verbrennungsmotor
AT20112000 2000-11-30
PCT/AT2001/000384 WO2002044528A1 (de) 2000-11-30 2001-11-28 Viertakt-verbrennungsmotor

Publications (2)

Publication Number Publication Date
EP1337744A1 EP1337744A1 (de) 2003-08-27
EP1337744B1 true EP1337744B1 (de) 2007-08-01

Family

ID=3689613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01998720A Expired - Lifetime EP1337744B1 (de) 2000-11-30 2001-11-28 Viertakt-verbrennungsmotor

Country Status (11)

Country Link
US (1) US7073482B2 (ja)
EP (1) EP1337744B1 (ja)
JP (1) JP2004514091A (ja)
CN (1) CN1239815C (ja)
AT (2) AT411091B (ja)
AU (2) AU2002218061B2 (ja)
BR (1) BR0115846A (ja)
DE (1) DE50112803D1 (ja)
ES (1) ES2291382T3 (ja)
HK (1) HK1060611A1 (ja)
WO (1) WO2002044528A1 (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003216003A1 (en) * 2003-03-17 2004-10-11 Aktiebolaget Electrolux A four-stroke engine
DK176742B1 (da) * 2004-06-30 2009-06-02 Hans Jensen Lubricators As Fremgangsmåde og apparat til smöring af cylinderfladerne i store dieselmotorer
AT414153B (de) 2004-07-21 2006-09-15 Forschungsgesellschaft Fuer Ve Viertakt-verbrennungsmotor
JP4546206B2 (ja) * 2004-09-29 2010-09-15 本田技研工業株式会社 自動二輪車
GB2434405A (en) * 2006-01-20 2007-07-25 Keith Gordon Hall Internal combustion engine with disc drive mechanism and crankcase compression of intake air
SE0602508L (sv) * 2006-11-27 2007-08-28 Atlas Copco Constr Tools Ab Tvåtaktsförbränningsmotor
WO2008092295A1 (fr) * 2007-01-23 2008-08-07 Hongfeng Li Système de lubrification destiné à un moteur diesel quatre temps de petite taille à rotation libre
US7867310B2 (en) * 2009-01-29 2011-01-11 General Electric Company Method and apparatus for separating air and oil
US9187083B2 (en) 2009-09-16 2015-11-17 Polaris Industries Inc. System and method for charging an on-board battery of an electric vehicle
EP2308708B1 (de) * 2009-09-16 2016-08-17 swissauto powersport llc Elektrofahrzeug mit Reichweitenverlängerung
EP2672082A1 (de) * 2012-06-05 2013-12-11 Wärtsilä Schweiz AG Schmiermittelsammelvorrichtung
DE102012011834A1 (de) 2012-06-14 2013-12-19 Volkswagen Aktiengesellschaft Verfahren zum Vermeiden einer Vorentflammung in einem Verbrennungsmotor
WO2016065316A1 (en) * 2014-10-23 2016-04-28 Enairgy Engines Llc Power plant
CN104594976A (zh) * 2014-11-26 2015-05-06 中国北方发动机研究所(天津) 一种由机油回油泵驱动的油气分离器
US10300786B2 (en) 2014-12-19 2019-05-28 Polaris Industries Inc. Utility vehicle
IL296644B2 (en) 2016-06-14 2023-12-01 Polaris Inc Hybrid vehicle
CN106285832B (zh) * 2016-10-14 2019-02-22 北京航空航天大学 一种用于航空重油活塞发动机的曲轴箱压力自平衡系统
CN106762127A (zh) * 2017-02-09 2017-05-31 天津内燃机研究所（天津摩托车技术中心） 二冲程缸内直喷发动机
CN107676173A (zh) * 2017-09-28 2018-02-09 山东华盛中天机械集团股份有限公司 以二冲程汽油机燃料进行燃烧和润滑的四冲程汽油机
US10780770B2 (en) 2018-10-05 2020-09-22 Polaris Industries Inc. Hybrid utility vehicle
US11370266B2 (en) 2019-05-16 2022-06-28 Polaris Industries Inc. Hybrid utility vehicle

Family Cites Families (18)

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US3672172A (en) * 1971-03-15 1972-06-27 Gary L Hammond Simplified supercharged internal combustion engine with emissions control
JPS5932618A (ja) * 1982-08-18 1984-02-22 Zenji Ishikawa ４サイクル機関
JPH0247212Y2 (ja) * 1985-01-18 1990-12-12
JPH0511302Y2 (ja) * 1987-02-23 1993-03-19
DE3731250C1 (en) * 1987-09-17 1988-10-06 Zochev Donkov Dancho Dipl Ing Reciprocating piston internal combustion engine with crankcase charge air pumps
DE3832013C2 (de) * 1987-09-17 1996-08-01 Dancho Zochev Dipl Ing Donkov Hubkolben-Brennkraftmaschine mit Kurbelgehäuse-Ladeluftpumpen
JP2694907B2 (ja) * 1988-12-26 1997-12-24 ヤマハ発動機株式会社 ２サイクルエンジン
JPH02233827A (ja) * 1989-03-07 1990-09-17 Norio Saito クランク室圧縮付吸気方による４行程エンジン吸気量増加方
DE3935789C2 (de) * 1989-10-27 1995-10-12 Dancho Zochev Dipl Ing Donkov Hubkolben-Brennkraftmaschine mit Kurbelgehäuse-Ladeluftpumpe und Ladeluftkühler
FR2706182B1 (fr) * 1993-06-07 1995-07-21 Inst Francais Du Petrole Dispositif de recyclage de lubrifiant dans un moteur à combustion interne.
AU5942494A (en) 1993-06-25 1995-01-05 Mcculloch Corporation Four-stroke internal combustion engine
US5291866A (en) * 1993-07-20 1994-03-08 Kosa David R Pulse charger
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JPH08193519A (ja) * 1995-01-13 1996-07-30 Yamaha Motor Co Ltd コンロッド過給式エンジンを備えた自動二輪車
JP3373968B2 (ja) * 1995-02-15 2003-02-04 小島プレス工業株式会社 内燃機関用オイルトラッパ
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RO117278B1 (ro) * 2000-04-26 2001-12-28 Cristian Lungu Metoda si instalatie de supraalimentare a motorului cu ardere interna

Also Published As

Publication number Publication date
EP1337744A1 (de) 2003-08-27
ES2291382T3 (es) 2008-03-01
CN1239815C (zh) 2006-02-01
JP2004514091A (ja) 2004-05-13
ATA20112000A (de) 2003-02-15
US20040099241A1 (en) 2004-05-27
WO2002044528A1 (de) 2002-06-06
CN1478174A (zh) 2004-02-25
AT411091B (de) 2003-09-25
AU1806102A (en) 2002-06-11
US7073482B2 (en) 2006-07-11
BR0115846A (pt) 2003-10-07
AU2002218061B2 (en) 2007-05-24
HK1060611A1 (en) 2004-08-13
DE50112803D1 (de) 2007-09-13
ATE368799T1 (de) 2007-08-15

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