EP1253303A2 - Moteur à combustion interne à piston alternatif refroidi par liquide - Google Patents

Moteur à combustion interne à piston alternatif refroidi par liquide Download PDF

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Publication number
EP1253303A2
EP1253303A2 EP02007810A EP02007810A EP1253303A2 EP 1253303 A2 EP1253303 A2 EP 1253303A2 EP 02007810 A EP02007810 A EP 02007810A EP 02007810 A EP02007810 A EP 02007810A EP 1253303 A2 EP1253303 A2 EP 1253303A2
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
line
inlet
coolant
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
Application number
EP02007810A
Other languages
German (de)
English (en)
Other versions
EP1253303B1 (fr
EP1253303A3 (fr
Inventor
Roland Herynek
Martin Vollmer
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.)
Robert Bosch GmbH
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
Publication of EP1253303A2 publication Critical patent/EP1253303A2/fr
Publication of EP1253303A3 publication Critical patent/EP1253303A3/fr
Application granted granted Critical
Publication of EP1253303B1 publication Critical patent/EP1253303B1/fr
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
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • 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
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • 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
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/021—Cooling cylinders
    • 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
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/024—Cooling cylinder heads
    • 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
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/027—Cooling cylinders and cylinder heads in parallel
    • 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
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/08—Cabin heater

Definitions

  • the invention relates to a liquid-cooled reciprocating internal combustion engine according to the preamble of the claim 1 off.
  • a bypass line connects in the cooling circuit the return line with the inlet line. You bridged the cooler and flows into the upstream of the water pump Supply line.
  • a three-way valve which regulates the flow of coolant and thermostatically or from a control unit is controlled.
  • the control unit is via signal lines with numerous different sensors connected, which are the operating parameters and environmental parameters the reciprocating internal combustion engine and the cooling or Record the heating circuit.
  • a cooling circuit is known in which the inlet pipe branches into two inlet pipes, the one inlet pipe in the area of the cylinder head and the other in the area of the cylinder block in the reciprocating piston internal combustion engine empties.
  • the coolant flow regulated by a valve which is in the inlet line is arranged to the cylinder block.
  • the valve position is regulated by a control unit, which among other things Evaluates temperature measurements on the reciprocating piston internal combustion engine.
  • a first temperature sensor measures the temperature of the flowing coolant, which provides information about the Total cooling of the reciprocating piston internal combustion engine there.
  • On second temperature sensor measures the temperature of the machine oil, whereby the cooling in the area of the cylinder block is determined becomes.
  • the valve is set according to the measurement data, see above that exactly certain subsets through the separate inlet lines flow to the cylinder head or cylinder block.
  • the coolant flows through the separate inflow Targeted in the two areas, but will be later again blended because the cooling channels have a volume flow between the areas and thus an exchange of coolant allow.
  • Temperature measurements of the mixed coolant do not represent the actual operating conditions in the individual areas of the reciprocating piston internal combustion engine and the control of the cooling circuit is not precise their special temperature conditions matched.
  • the coolant spaces of the cylinder head and the cylinder block separated and via separate outlet lines on a common return line connected.
  • the coolant flows flow via separate inlet lines, each with a Control valve is provided in the two areas of the reciprocating piston internal combustion engine and are also during the cooling process not mixed. They also leave the reciprocating piston internal combustion engine also via separate outlet lines.
  • Temperature measurements in the cylinder head exhaust pipe or the cylinder block in this case represent the the respective cooling process is unadulterated.
  • the amount of coolant flowing through it adjust efficiently to the area to be cooled.
  • the area of the cylinder head can be marked by a increased coolant flow in an optimal temperature range be held without the cylinder block, which usually does not need to be cooled as much, is also flowed around by the coolant.
  • the invention advantageously provides that the two Control valves in the inlet lines individually or together are controllable, so that in addition to the need-based throttling of the coolant flow to one of the two, separate Areas of the reciprocating piston internal combustion engine in many Operating points also the total volume flow of the coolant is reduced, which is the case with known cooling circuits not possible.
  • the two control valves arranged in the outlet lines instead of in the inlet lines his.
  • the coolant control according to the invention causes the reciprocating internal combustion engine to quickly optimal operating temperature reached and over wide operating ranges maintains. This will reduce fuel consumption and reduced pollutant emissions.
  • the only drawing shows a schematic representation a cooling circuit of a reciprocating piston internal combustion engine.
  • a reciprocating piston internal combustion engine 10 is on a cooling circuit 16 connected.
  • a water pump 18 delivers coolant via a pressure line 32 to the reciprocating piston internal combustion engine 10 and from there through a return flow line 26 a cooler 20, which cooperates with a fan 24.
  • the coolant flows from the cooler 20 through a suction line 30 back to the water pump 18.
  • the coolant flow is indicated by arrows.
  • the pressure line 32 branches into a first inlet line 34 leading to a cylinder head 12 of the internal combustion engine 10 leads, and into a second inlet line 36 leading to a Cylinder block 14 of the internal combustion engine 10 leads.
  • the cylinder head 12 and the cylinder block 14 have no closer shown, separate coolant spaces. The separation is indicated by a dashed line 46.
  • the cylinder head 12 is via a first outlet line 38 and the Cylinder block 14 via a second outlet line 40 with the common return line 26 connected.
  • By the separate Coolant flow in the cylinder head 12 and in Cylinder block 14 is the temperature of the coolant in the outlet lines 38, 40 representative of the heat and the cooling processes in the cylinder head 12 or in the cylinder block 14.
  • Sensors not shown in the outlet lines 38, 40 together with one can also Control unit not shown and the control valves 42, 44 in the inlet lines 34, 36 the temperature behavior determine precisely in the cylinder head 12 and in the cylinder block 14.
  • a first control valve 42 is sufficient, which in the first or second inlet line 34, 36 is arranged.
  • this control valve 42 By controlling this control valve 42, the volume flow through the corresponding inlet line 34 or 36 throttled while the rest, by the water pump 18 delivered volume flow through the other inlet line 34 or 36 flows.
  • a first control valve 42 in the first inlet line 34 and a second Control valve 44 in the second inlet line 36 can total volume flow to both the inlet pipes 34 and 36 are split as well as throttled so that the amount of coolant flowing through the reciprocating internal combustion engine 10 in operating areas with low heat generation can be reduced.
  • the first and second control valve 42, 44 on the outflow side in the outlet lines 38, 40 are arranged.
  • the cooling circuit 16 can have a conventional structure have, in which between the return line 26 and the Suction line 30 parallel to the cooler 20, a bypass line 28 and a heat exchanger 22 are connected.
  • a third Control valve 48 which as a thermostatic valve or as one of the control unit controllable valve is designed, regulates the flow through the heat exchanger 22, the bypass line 28 and the cooler 20.
  • the cooling circuit 16 other heat exchangers for work and Include auxiliary units.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP20020007810 2001-04-24 2002-04-06 Moteur à combustion interne à piston alternatif refroidi par liquide Expired - Lifetime EP1253303B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001119969 DE10119969A1 (de) 2001-04-24 2001-04-24 Durch Flüssigkeit gekühlte Hubkolbenbrennkraftmaschine
DE10119969 2001-04-24

Publications (3)

Publication Number Publication Date
EP1253303A2 true EP1253303A2 (fr) 2002-10-30
EP1253303A3 EP1253303A3 (fr) 2003-03-26
EP1253303B1 EP1253303B1 (fr) 2007-10-31

Family

ID=7682477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020007810 Expired - Lifetime EP1253303B1 (fr) 2001-04-24 2002-04-06 Moteur à combustion interne à piston alternatif refroidi par liquide

Country Status (3)

Country Link
EP (1) EP1253303B1 (fr)
JP (1) JP2002332840A (fr)
DE (2) DE10119969A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2845420A1 (fr) * 2002-10-04 2004-04-09 Mark Iv Systemes Moteurs Sa Circuit de refroidissement comportant un organe de regulation du flux
FR2859757A1 (fr) * 2003-09-17 2005-03-18 Bosch Gmbh Robert Moteur a combustion interne equipe d'un circuit de refroidissement
GB2420847A (en) * 2004-12-04 2006-06-07 Ford Global Tech Llc Engine cooling system with independent control of coolant supply through a cylinder head and a cylinder block
WO2020058084A1 (fr) * 2018-09-17 2020-03-26 Man Truck & Bus Se Système de refroidissement et procédé de configuration d'un système de refroidissement

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2420846B (en) 2004-12-04 2009-07-08 Ford Global Technologies Llc A cooling system for a motor vehicle engine
DE102005062294A1 (de) 2005-12-24 2007-06-28 Dr.Ing.H.C. F. Porsche Ag Verfahren zur Kühlung einer Brennkraftmaschine
JP5287769B2 (ja) * 2010-03-05 2013-09-11 株式会社デンソー 車両用空調装置
DE102010010594B4 (de) * 2010-03-08 2014-10-09 Audi Ag Kühlkreislauf für eine Brennkraftmaschine
US9072317B2 (en) 2012-04-16 2015-07-07 Eugenio Minvielle Transformation system for nutritional substances
JP6365179B2 (ja) * 2014-09-25 2018-08-01 スズキ株式会社 内燃機関の制御装置
US20180298806A1 (en) * 2014-10-28 2018-10-18 Borgwarner Inc. A fluid system and method of making and using the same
KR102565353B1 (ko) * 2018-09-17 2023-08-14 현대자동차주식회사 엔진 냉각 시스템

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121714A (en) 1990-02-16 1992-06-16 Nippondenso Co., Ltd. Cooling of an internal-combustion engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908930C (de) * 1951-07-29 1954-04-12 Maschf Augsburg Nuernberg Ag Fluessigkeitsgekuehlte Brennkraftmaschine
JPS56165713A (en) * 1980-05-21 1981-12-19 Toyota Motor Corp Cooler for engine
US4423705A (en) * 1981-03-26 1984-01-03 Toyo Kogyo Co., Ltd. Cooling system for liquid-cooled internal combustion engines
JPS57176314A (en) * 1981-04-23 1982-10-29 Toyota Motor Corp Cooling equipment for engine
JPS61167115A (ja) * 1985-01-17 1986-07-28 Yanmar Diesel Engine Co Ltd 海水直冷式舶用エンジンの冷却装置
DE19628542A1 (de) * 1996-07-16 1998-01-22 Juergen Dipl Ing Naegeler Kühlsystem für einen Verbrennungsmotor
DE19938614A1 (de) * 1999-08-14 2001-02-22 Bosch Gmbh Robert Kühlkreislauf für einen Verbrennungsmotor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121714A (en) 1990-02-16 1992-06-16 Nippondenso Co., Ltd. Cooling of an internal-combustion engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2845420A1 (fr) * 2002-10-04 2004-04-09 Mark Iv Systemes Moteurs Sa Circuit de refroidissement comportant un organe de regulation du flux
FR2859757A1 (fr) * 2003-09-17 2005-03-18 Bosch Gmbh Robert Moteur a combustion interne equipe d'un circuit de refroidissement
DE10342935B4 (de) * 2003-09-17 2015-04-30 Robert Bosch Gmbh Verbrennungskraftmaschine mit einem Kühlkreislauf
GB2420847A (en) * 2004-12-04 2006-06-07 Ford Global Tech Llc Engine cooling system with independent control of coolant supply through a cylinder head and a cylinder block
GB2420847B (en) * 2004-12-04 2009-07-08 Ford Global Tech Llc An engine cooling system
WO2020058084A1 (fr) * 2018-09-17 2020-03-26 Man Truck & Bus Se Système de refroidissement et procédé de configuration d'un système de refroidissement
CN112739893A (zh) * 2018-09-17 2021-04-30 曼卡车和巴士欧洲股份公司 冷却系统和用于配置冷却系统的方法

Also Published As

Publication number Publication date
DE10119969A1 (de) 2002-10-31
EP1253303B1 (fr) 2007-10-31
EP1253303A3 (fr) 2003-03-26
JP2002332840A (ja) 2002-11-22
DE50211125D1 (de) 2007-12-13

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