WO2012156213A1 - Moteur à combustion interne et dispositif de transport de carburant - Google Patents

Moteur à combustion interne et dispositif de transport de carburant Download PDF

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Publication number
WO2012156213A1
WO2012156213A1 PCT/EP2012/058229 EP2012058229W WO2012156213A1 WO 2012156213 A1 WO2012156213 A1 WO 2012156213A1 EP 2012058229 W EP2012058229 W EP 2012058229W WO 2012156213 A1 WO2012156213 A1 WO 2012156213A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
internal combustion
combustion engine
lubricant
delivery device
Prior art date
Application number
PCT/EP2012/058229
Other languages
German (de)
English (en)
Inventor
Rainer Peck
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201280023085.4A priority Critical patent/CN103518043A/zh
Publication of WO2012156213A1 publication Critical patent/WO2012156213A1/fr

Links

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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/001—Heating
    • 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
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/04—Use of fuel as lubricant
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
    • F01M2001/123—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 using two or more pumps

Definitions

  • the invention relates to an internal combustion engine with a plurality of moving parts and a fuel delivery device for a fuel injection of an internal combustion engine according to the preamble of the independent claims.
  • the internal combustion engine having a plurality of moving parts and the fuel delivery device for fuel injection of an internal combustion engine having the characterizing features of the independent claims have the advantage that no separate lubricating oil circuit for lubricating the moving parts of the internal combustion engine is needed.
  • the fuel used for combustion in the internal combustion engine is also used for lubrication of the internal combustion engine and by the fuel delivery device to the transported to be lubricated moving parts of the internal combustion engine.
  • the fuel which is used for lubrication of the internal combustion engine is free of lubricating oil and comes from the reservoir of the fuel delivery device.
  • components such as e.g. the oil reservoir or oil pump omitted.
  • a cost saving and a space saving in the planning of the engine compartment are achieved.
  • the use of a fuel delivery device for fuel injection is advantageous in the promotion of fuel for lubrication of the internal combustion engine, since no separate lubricant circuit with pumps is needed. Additional pumps can be saved as the existing in the fuel delivery pump take over the transport of lubricant used as fuel.
  • diesel fuel for lubricating the internal combustion engine is advantageous since diesel fuel has better lubricating properties than gasoline fuel even without the addition of lubricating oil.
  • a lubricant supply line which is fed with fuel from a low-pressure area between the feed pump and the high-pressure pump, since the
  • connection of the lubricant supply line with a return line passes through the fuel from the return of the high-pressure region and / or the leakage of the at least one injector to the reservoir, as in the return line, there is a pressure which ensures the lubrication of the internal combustion engine. Additional energy for operating the delivery pump with a higher power, which also takes into account the amount of fuel for lubrication of the internal combustion engine, is saved.
  • a compound of the lubricant discharge to the reservoir is advantageous because the fuel that has been used as a lubricant has been heated and is cooled by the existing fuel in the reservoir.
  • Fuel that has been used as a lubricant is subject to an aging process.
  • a compound of the lubricant discharge with a supply line to the feed pump is advantageous because the fuel used as a lubricant passes faster into the internal combustion engine, in which it is burned.
  • Show it: 1 shows a fuel delivery device in a schematic representation according to a first embodiment of the invention
  • Figure 2 shows a fuel delivery device in a schematic representation according to a second embodiment of the invention.
  • FIGS 1 and 2 show a fuel delivery device for fuel injection of an internal combustion engine 2.
  • the fuel delivery device has a feed pump 10, which promotes fuel from a reservoir 12 via a supply line 8 in a low pressure region.
  • the low-pressure region is located between the feed pump 10 and a high-pressure pump 16.
  • a filter 38 which filters dirt particles from the fuel.
  • the drive of the feed pump 10 can be done mechanically via clutch, gear or timing belt by the engine 2 or the high-pressure pump 16.
  • the feed pump 10 may have an electric drive, which can be operated with variable power and thus variable speed or constant power and speed.
  • fuel is conveyed into a high-pressure region 18 of the fuel delivery device, which comprises, for example, a high-pressure accumulator 18.
  • a return line 28 branches off.
  • the return line 28 is supplied with fuel, which is deactivated from the high-pressure region 18 by a pressure regulating valve 27 or a pressure relief valve 27.
  • the pressure in the high-pressure region 18 can also be regulated via the feed pump 10 or by a device for regulating the quantity at the high-pressure pump 16.
  • the return line 28 is supplied with fuel derived from a leakage or control amount of the injectors 20. Through the return line 28 of the diverted fuel enters the reservoir 12th
  • the internal combustion engine 2 can be designed as a 2-stroke engine or as a 4-stroke engine. Since there are many moving parts in the internal combustion engine 2, such as the crankshaft with bearings, the connecting rod with bearings or the camshaft with bearings, the internal combustion engine 2 requires lubrication to damage the moving parts during operation of the internal combustion engine 2 avoid.
  • the engine 2 is lubricated with fuel as a liquid lubricant.
  • the moving parts of the internal combustion engine 2 are supplied with fuel without the addition of lubricating oil, the fuel also serving for combustion in the combustion chambers of the cylinders of the internal combustion engine 2 without the addition of lubricating oil.
  • the internal combustion engine 2 In order to supply the internal combustion engine 2 with fuel, which serves as a liquid lubricant, the internal combustion engine 2 with a lubricant supply line 21,
  • lubricant supply line 21, 41 the internal combustion engine 2 is supplied with liquid lubricant.
  • 41 may be a filter that filters dirt particles from the liquid lubricant.
  • a filter can also be found in the Lubricant removal 30 are located to filter out dirt or debris from the lubricant.
  • the liquid lubricant passes through the lubricant supply line 21, 41 and from there via internal channels of the internal combustion engine 2 to the lubrication points of the moving parts in the internal combustion engine 2.
  • the crankshaft provides by its rotational movement for an additional turbulence of the lubricant in the cylinder crankcase and thus for cooling of the piston.
  • the dripping and emerging from the internal channels and bearings lubricant passes through the lubricant discharge 30 into the reservoir 12th
  • the lubricant discharge 30 can be connected by a hydraulic connection 30a directly to the supply line 8 to the feed pump 10.
  • this alternative embodiment is shown by the dashed line.
  • the fuel that has served to lubricate the internal combustion engine 2 not returned to the storage containers 12 but is transported directly into the supply line 8 to the feed pump 10.
  • the lubricant supply line 41 is supplied with fuel from the low-pressure region between the delivery pump 10 and the high-pressure pump 16.
  • the lubricant supply line 41 branches off from the hydraulic connection between the feed pump 10 and the high-pressure pump 16 and connects the Niederdurck Scheme with the internal channels of the internal combustion engine 2. Due to the feed pressure of the feed pump 10 is a sufficiently high pressure level of the fuel used to lubricate the internal combustion engine 2, ensured ,
  • the lubricant supply line 21 to the internal combustion engine 2 is connected to the return line 28 connected.
  • the lubricant supply line 21 branches off from the return line 28, so that fuel from the return line 28 passes through the lubricant supply line 21 in the internal channels of the internal combustion engine 2 and lubricates the moving parts.
  • a throttle 26 to maintain a pressure level in the return line 28 and the associated lubricant supply line 21, which is required for the lubrication of the moving parts in the internal combustion engine 2.
  • the pressure level required for lubrication may also be controlled by other elements such as e.g. a pressure relief valve or a jet pump, which are arranged in the return line 28 or at the junction of the return line 28 to the reservoir 12 can be maintained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un moteur à combustion interne (2) comprenant plusieurs parties mobiles lubrifiées au moyen d'un lubrifiant liquide. Les parties mobiles du moteur à combustion interne (2) sont lubrifiées au moyen d'un carburant sans ajout de lubrifiant, le carburant étant destiné à brûler dans une chambre de combustion du moteur à combustion interne (2). L'invention concerne en outre un dispositif de transport de carburant pour un dispositif d'injection de carburant d'un moteur à combustion interne (2). Le moteur à combustion interne (2) comporte plusieurs parties mobiles et est lubrifié au moyen d'un carburant provenant d'un récipient de stockage (12). Une pompe de refoulement (10) permet de refouler du carburant du réservoir de stockage (12) vers le côté d'aspiration d'une pompe haute pression (16), et la pompe haute pression (16) permet de refouler du carburant vers une zone de haute pression (18) au moyen d'au moins un injecteur (20).
PCT/EP2012/058229 2011-05-13 2012-05-04 Moteur à combustion interne et dispositif de transport de carburant WO2012156213A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280023085.4A CN103518043A (zh) 2011-05-13 2012-05-04 内燃机及燃料输送装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110075793 DE102011075793A1 (de) 2011-05-13 2011-05-13 Brennkraftmaschine und Kraftstofffördereinrichtung
DE102011075793.7 2011-05-13

Publications (1)

Publication Number Publication Date
WO2012156213A1 true WO2012156213A1 (fr) 2012-11-22

Family

ID=46025744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/058229 WO2012156213A1 (fr) 2011-05-13 2012-05-04 Moteur à combustion interne et dispositif de transport de carburant

Country Status (3)

Country Link
CN (1) CN103518043A (fr)
DE (1) DE102011075793A1 (fr)
WO (1) WO2012156213A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2551509B (en) 2016-06-20 2020-08-26 Ford Global Tech Llc An engine assembly comprising a camshaft driven oil pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852854A1 (de) * 1978-12-07 1980-06-19 Daimler Benz Ag Schmierung fuer eine brennkraftmaschine
DE3029964A1 (de) * 1979-08-10 1981-02-26 Nissan Motor Verfahren zum schmieren einer dieselbrennkraftmaschine und diesel-brannkraftmaschine
DE19900132A1 (de) * 1998-12-29 2000-07-06 Case Germany Gmbh Brennkraftmaschine, insbesondere dieselmotorische Viertaktbrennkraftmaschine
DE10309964A1 (de) 2003-03-07 2004-09-16 Mahle Filtersysteme Gmbh Schmierölkreis für eine Brennkraftmaschine
JP2006183617A (ja) * 2004-12-28 2006-07-13 Toyota Motor Corp 軽油等燃料潤滑ディーゼルエンジン
JP2006183616A (ja) * 2004-12-28 2006-07-13 Toyota Motor Corp 軽油等燃料潤滑ディーゼルエンジン

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3001564A1 (de) * 1980-01-17 1981-07-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Einrichtung zum beheizen einer bedienungskabine
JPH07119430A (ja) * 1993-10-27 1995-05-09 Nissan Motor Co Ltd 内燃機関の潤滑装置
JP4248492B2 (ja) * 2004-12-28 2009-04-02 トヨタ自動車株式会社 軽油等燃料潤滑ディーゼルエンジン
JP2006250107A (ja) * 2005-03-14 2006-09-21 Toyota Motor Corp 軽油等燃料潤滑ディーゼルエンジン
US20070084431A1 (en) * 2005-10-17 2007-04-19 Omachi Steven T Fluid pump and method
JP2007113499A (ja) * 2005-10-20 2007-05-10 Toyota Motor Corp オイルタンク油量制御装置及び軽油等燃料潤滑ディーゼルエンジン

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852854A1 (de) * 1978-12-07 1980-06-19 Daimler Benz Ag Schmierung fuer eine brennkraftmaschine
DE3029964A1 (de) * 1979-08-10 1981-02-26 Nissan Motor Verfahren zum schmieren einer dieselbrennkraftmaschine und diesel-brannkraftmaschine
DE19900132A1 (de) * 1998-12-29 2000-07-06 Case Germany Gmbh Brennkraftmaschine, insbesondere dieselmotorische Viertaktbrennkraftmaschine
DE10309964A1 (de) 2003-03-07 2004-09-16 Mahle Filtersysteme Gmbh Schmierölkreis für eine Brennkraftmaschine
JP2006183617A (ja) * 2004-12-28 2006-07-13 Toyota Motor Corp 軽油等燃料潤滑ディーゼルエンジン
JP2006183616A (ja) * 2004-12-28 2006-07-13 Toyota Motor Corp 軽油等燃料潤滑ディーゼルエンジン

Also Published As

Publication number Publication date
CN103518043A (zh) 2014-01-15
DE102011075793A1 (de) 2012-11-15

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