EP1743091A1 - Dispositif pour refroidir au moins un piston d'un moteur a combustion interne - Google Patents

Dispositif pour refroidir au moins un piston d'un moteur a combustion interne

Info

Publication number
EP1743091A1
EP1743091A1 EP05730786A EP05730786A EP1743091A1 EP 1743091 A1 EP1743091 A1 EP 1743091A1 EP 05730786 A EP05730786 A EP 05730786A EP 05730786 A EP05730786 A EP 05730786A EP 1743091 A1 EP1743091 A1 EP 1743091A1
Authority
EP
European Patent Office
Prior art keywords
lubricating oil
internal combustion
combustion engine
piston
cooling
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Withdrawn
Application number
EP05730786A
Other languages
German (de)
English (en)
Inventor
Ulrich Ernst
Uwe Brendel
Carsten Wolf
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1743091A1 publication Critical patent/EP1743091A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/06—Arrangements for cooling pistons
    • F01P3/08—Cooling of piston exterior only, e.g. by jets
    • 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
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • 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
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • F01M2001/086—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating gudgeon pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P2003/006—Liquid cooling the liquid being oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/40—Oil temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/60—Operating parameters
    • F01P2025/64—Number of revolutions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed

Definitions

  • the invention relates to a device for cooling at least one piston of an internal combustion engine according to the preamble of claim 1.
  • the invention has for its object to provide a method which ensures an optimized piston cooling such that the Internal combustion engine is improved in terms of their overall efficiency.
  • a non-return valve in the main supply line or a non-return valve per supply line is used in a known manner, the lubricating oil pump for regulating the pressure within the lubricating oil circuit for adapting to different operating states of the internal combustion engine being load-dependent. Due to the load-dependent control of the lubricating oil pump, a non-return valve can be used which works with an increased opening pressure compared to a non-return valve of a system without a lubricating oil pump controlled according to the load. This avoids unnecessary piston cooling in many operating states.
  • the lubricating oil pump is controlled as a function of additional operating parameters - in particular as a function of the speed of the internal combustion engine and / or the temperature of the internal combustion engine and / or the coolant temperature of the internal combustion engine and / or the lubricating oil temperature.
  • Figure 1 a first device according to the invention.
  • Figure 1 shows a schematic representation of a device for cooling the pistons 2 (or the at least one piston) of an internal combustion engine.
  • the device comprises one Lubricating oil pump 10, which supplies the piston 2 with lubricating oil via a feed line 12 for cooling.
  • a check valve 14 is arranged in the feed line 12 between the lubricating oil pump 10 and the outlet opening 12a of the feed line 12.
  • the lubricating oil pump 10 is controlled by a control unit 20, which ensures that the lubricating oil pump 10 is regulated as a function of the determined load of the internal combustion engine.
  • the lubricating oil pump 10 is preferably controlled via the control unit 20 (for example an engine control unit) by means of a map control as a function of a plurality of operating parameters.
  • the control is carried out as a function of the engine temperature, the engine speed and / or the lubricating oil temperature. Due to the load-dependent regulation of the lubricating oil pump 10, the check valve 14 can be designed for an increased opening pressure.
  • a check valve 14 in the conventional, non-load-dependent control of the lubricating oil pump of an internal combustion engine in a motor vehicle is designed for an opening pressure of approximately two bar - in order to ensure sufficient piston cooling even in all critical conditions -
  • a check valve 14 with a higher opening pressure than this - for example an opening pressure of three bar - is used.
  • valves one valve per supply line
  • main supply line connected to the supply lines (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un dispositif servant à refroidir les pistons d'un moteur à combustion interne au moyen d'une pompe de lubrification qui amène de l'huile provenant du circuit de lubrification à chaque piston, au moins au niveau du fond, par l'intermédiaire d'une conduite d'amenée correspondante présentant un orifice de sortie, l'amenée d'huile se faisant au moyen d'au moins une soupape. Selon l'invention, la soupape utilisée est une soupape de retenue qui autorise l'amenée d'huile seulement à partir d'une pression définie dans le circuit de lubrification. Une unité de commande garantit que la pompe de lubrification est régulée en fonction de la charge afin de fournir une pression variable dans le circuit de lubrification pour des états de fonctionnement différents du moteur à combustion interne.
EP05730786A 2004-04-13 2005-04-11 Dispositif pour refroidir au moins un piston d'un moteur a combustion interne Withdrawn EP1743091A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004017909A DE102004017909A1 (de) 2004-04-13 2004-04-13 Vorrichtung zur Kühlung von zumindest einem Kolben einer Brennkraftmaschine
PCT/EP2005/003783 WO2005100758A1 (fr) 2004-04-13 2005-04-11 Dispositif pour refroidir au moins un piston d'un moteur a combustion interne

Publications (1)

Publication Number Publication Date
EP1743091A1 true EP1743091A1 (fr) 2007-01-17

Family

ID=34963920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05730786A Withdrawn EP1743091A1 (fr) 2004-04-13 2005-04-11 Dispositif pour refroidir au moins un piston d'un moteur a combustion interne

Country Status (4)

Country Link
US (1) US20070022981A1 (fr)
EP (1) EP1743091A1 (fr)
DE (1) DE102004017909A1 (fr)
WO (1) WO2005100758A1 (fr)

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FR2885170B1 (fr) * 2005-05-02 2007-09-21 Bontaz Ct Sa Clapet a fuite controlee pour gicleur de refroidissement de piston
DE102007060160B4 (de) * 2007-12-13 2014-03-27 Ford Global Technologies, Llc Strategie zur Aktivierung von Ölspritzdüsen
DE102009006963A1 (de) 2009-01-31 2010-08-05 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Ölversorgungseinrichtung
DE102009038676B4 (de) * 2009-08-24 2015-11-19 Audi Ag Ölkreislauf für eine Brennkraftmaschine
JP4985739B2 (ja) * 2009-10-01 2012-07-25 トヨタ自動車株式会社 内燃機関の制御装置
DE102009057549A1 (de) * 2009-12-09 2011-06-16 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zur Kühlung und/oder Schmierung wenigstens eines Kolbens und/oder der Zylinderlaufbahn einer Brennkraftmaschine
GB2480241A (en) * 2010-05-10 2011-11-16 Gm Global Tech Operations Inc Method to operate an electrically driven oil piston cooling jets valve
JP2011256742A (ja) * 2010-06-07 2011-12-22 Toyota Motor Corp ピストンの冷却システム
FR2972488B1 (fr) * 2011-03-10 2013-03-29 Peugeot Citroen Automobiles Sa Systeme de lubrification d'un moteur thermique, comprenant une pompe a huile a cylindree variable
US8955474B1 (en) * 2011-04-14 2015-02-17 Patrick J. Derbin Closed loop electronic control for the reduction of soot produced in diesel, gasoline and alternative-fueled engines
US9334766B2 (en) 2011-09-27 2016-05-10 GM Global Technology Operations LLC Method and apparatus for controlling oil flow in an internal combustion engine
DE102012200279A1 (de) * 2012-01-11 2013-07-11 Ford Global Technologies, Llc Verfahren und Vorrichtung zum Betreiben eines Schmiersystems einesVerbrennungsmotors
DE102013113217A1 (de) * 2013-11-29 2015-06-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vorrichtung und Verfahren zur Schmierung und Kühlung von Kolben eines Verbrennungsmotors
DE102015007510B4 (de) * 2015-06-11 2025-01-23 Volkswagen Aktiengesellschaft Verfahren zum Betreiben einer Brennkraftmaschine und Vorrichtung zum Durchführen eines solchen Verfahrens
KR101704301B1 (ko) * 2015-12-10 2017-02-07 현대자동차주식회사 피스톤 오일 업 방지방법 및 이를 적용한 엔진
DE102016001926A1 (de) * 2016-02-18 2017-08-24 Man Truck & Bus Ag Kolben für eine Hubkolben-Verbrennungskraftmaschine
DE102016225744B4 (de) 2016-12-21 2018-07-12 Continental Automotive Gmbh Verfahren und Vorrichtung zur Kühlung eines Kolbens einer Hubkolbenbrennkraftmaschine
DE102017223127B3 (de) 2017-12-19 2019-02-21 Bayerische Motoren Werke Aktiengesellschaft Wärmeträgerkreislauf mit einem Kühlmantel zur Kühlung einer Wärmequelle eines Antriebsmotors

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Also Published As

Publication number Publication date
DE102004017909A1 (de) 2005-11-10
US20070022981A1 (en) 2007-02-01
WO2005100758A1 (fr) 2005-10-27

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