EP1965045A2 - Verfahren und Vorrichtung zum Wiederaufheizen von Abgas und Absetzkammer für Abgas - Google Patents

Verfahren und Vorrichtung zum Wiederaufheizen von Abgas und Absetzkammer für Abgas Download PDF

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Publication number
EP1965045A2
EP1965045A2 EP08152027A EP08152027A EP1965045A2 EP 1965045 A2 EP1965045 A2 EP 1965045A2 EP 08152027 A EP08152027 A EP 08152027A EP 08152027 A EP08152027 A EP 08152027A EP 1965045 A2 EP1965045 A2 EP 1965045A2
Authority
EP
European Patent Office
Prior art keywords
engine
oil
crankcase
gases
settling chamber
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
EP08152027A
Other languages
English (en)
French (fr)
Other versions
EP1965045A3 (de
EP1965045B1 (de
Inventor
Serge Pires
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1965045A2 publication Critical patent/EP1965045A2/de
Publication of EP1965045A3 publication Critical patent/EP1965045A3/de
Application granted granted Critical
Publication of EP1965045B1 publication Critical patent/EP1965045B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F01M2013/0455—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a de-icing or defrosting system

Definitions

  • the present invention relates to a method and a device for heating crankcase gas in a motor vehicle engine.
  • the invention also relates to a settling chamber contained in the crankcase circuit of a motor vehicle engine.
  • the invention finds a particularly advantageous application in the field of the automotive industry.
  • blow-by gases cool and some initially gaseous compounds can condense into liquid, or even solidify.
  • an amalgam may be formed, that is to say an emulsion obtained by stirring a mixture of water and oil in the liquid phase.
  • crankcase gases can fall below 0 ° C, so as to freeze the water contained in these gases.
  • the formation of a plug of ice and / or amalgam causes a rise in pressure of the crankcase causing oil splashes under the hood and engine breakage by oil draining of the housing by the oil dipstick or by the seals.
  • a fire hazard of the vehicle is not excluded.
  • an object of the invention is to provide a method and a device for heating "blow-by" gases which make it possible to avoid additional energy consumption, to limit the additional cost of reheating and not to increase engine clutter.
  • This object is achieved, in accordance with the invention, by a method of heating crankcase gas in a motor vehicle engine, said gases being circulated in a recovery circuit passing through an oil settling chamber contained in said crankcase gas, remarkable in that said method consists in maintaining in said settling chamber a temperature above a given temperature.
  • the temperature of the settling chamber is maintained higher than said temperature given by heat exchange between said settling chamber and a heat transfer fluid of the engine.
  • the invention provides in particular that said heat exchange is obtained by circulating said heat transfer liquid on at least one wall of the settling chamber.
  • said coolant liquid is taken at the outlet of a heat exchanger with the engine lubricating circuit oil.
  • a device for heating crankcase gas in a motor vehicle engine, a circuit for recovering said gases passing through an oil settling chamber contained in said crankcase gases is notably remarkable in that said device comprises means to maintain the temperature of said upper settling chamber at a given temperature.
  • said means are capable of creating a heat exchange between said settling chamber and a heat transfer fluid of the engine.
  • said means comprise at least one double wall arranged on the settling chamber and intended to achieve said heat exchange by circulation of the heat transfer fluid inside said double wall.
  • the double wall is provided with a heat transfer fluid inlet orifice in communication with a heat exchanger between said heat transfer fluid and the oil of the engine lubrication circuit.
  • the invention further relates to an oil settling chamber contained in the crankcase circuit of a motor vehicle engine, characterized in that said settling chamber comprises a double wall for the circulation of a coolant of the motor.
  • the double wall is provided with a coolant inlet for communicating with a heat exchanger between said heat transfer fluid and the engine lubrication circuit oil.
  • the invention has the effect of avoiding the formation of ice plugs or amalgam due to the cooling of "blow-by" gases by preventing such cooling from occurring, or even favoring their warming.
  • the invention therefore makes it possible to use the heat-transfer fluid circuit of the engine, eg brine, of the cooling circuit, and in particular the heat it conveys, in order to heat the walls of the oil settling chamber.
  • the heat exchange tending to cool the crankcase gases and to create the difficulties related to freeze "blow-by" and amalgam, are reversed.
  • the problems of gel and amalgam are minimized or even eliminated depending on the applications.
  • crankcase heating device in a motor vehicle engine which is shown schematically on the figure 1 the cylinder head 10, the cylinder block 20 and the oil tank 30.
  • the chamber 210 decantation is intended to decant the crankcase gases to separate them from the oil they are loaded. This is usually a baffle type settler that stops the oil droplets and returns them to the oil tank by means of an oil return pipe 215 from the decanter 210 to the oil tank 30.
  • the "blow-by" gases thus pass, between an inlet 211 and an outlet 212, a hot space inside the decanter 210 which protects them from possibly very cold temperatures that can be encountered outside, in particular in areas exposed to cold air under the hood.
  • the desired heating is obtained by equipping the chamber 210 with a double wall 216 decantation, as indicated by the figure 2 , and to circulate a coolant capable of constituting a heat shield for the crankcase gases that pass through the decanter 210.
  • This fluid enters the double wall 216 through an inlet orifice 213 and out through a port 214 of exit.
  • the coolant introduced into the double wall 216 of the settling chamber 210 is, for example, the engine coolant, such as brine, which, leaving the water core of the cylinder block 20 through the manifold 231 enters a 230 water / oil exchanger to cool the oil of the engine lubrication circuit.
  • This oil is removed from the oil tank 30 by the pipe 221, then is filtered by the oil filter 220 before passing through the heat exchanger 230 and continue its journey to supply the lubrication circuit.
  • the water of the cooling circuit receives calories from the engine oil, enters the decanter 210 through the inlet orifice 213, circulates in the double wall 216 which it maintains at a constant temperature. temperature sufficient, spring decanter 20 through the outlet port 214 and continues its path to cool the cylinder head 10.
  • the double wall 216 may cover all the faces of the decantation chamber 210 or only some of them and, at least, the one most exposed to cold aeration under the hood.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP20080152027 2007-03-01 2008-02-27 Verfahren und Vorrichtung zum Wiederaufheizen von Abgas und Absetzkammer für Abgas Not-in-force EP1965045B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0753579A FR2913249B1 (fr) 2007-03-01 2007-03-01 Procede et dispositif de rechauffage de gaz de carter et chambre de decantation destinee aux gaz de carter

Publications (3)

Publication Number Publication Date
EP1965045A2 true EP1965045A2 (de) 2008-09-03
EP1965045A3 EP1965045A3 (de) 2010-10-13
EP1965045B1 EP1965045B1 (de) 2012-12-26

Family

ID=38870235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080152027 Not-in-force EP1965045B1 (de) 2007-03-01 2008-02-27 Verfahren und Vorrichtung zum Wiederaufheizen von Abgas und Absetzkammer für Abgas

Country Status (2)

Country Link
EP (1) EP1965045B1 (de)
FR (1) FR2913249B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2973071A1 (fr) * 2011-03-21 2012-09-28 Renault Sas Decanteur comportant un canal de refroidissement
WO2015090483A1 (de) * 2013-12-20 2015-06-25 Mtu Friedrichshafen Gmbh Verfahren zur verbesserung der kaltstarteigenschaft einer brennkraftmaschine und kurbelgehäuse-entlüftungeinrichtung dazu
EP3444454A4 (de) * 2016-09-02 2019-12-18 Kubota Corporation Blowby-gasheizung
CN114941558A (zh) * 2022-05-09 2022-08-26 潍柴动力股份有限公司 一种气体含水量测量装置及方法
US11946397B1 (en) 2023-05-01 2024-04-02 Caterpillar Inc. Pre-heated crankcase ventilation system architecture
US12359593B2 (en) 2023-01-03 2025-07-15 Caterpillar Inc. Modular assemblies for crankcase oil separators
US12497912B2 (en) 2023-01-03 2025-12-16 Caterpillar Inc. Crankcase oil separator for internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114738078B (zh) * 2022-05-09 2023-06-09 一汽解放汽车有限公司 一种发动机窜气除水装置、窜气除水方法及车

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6234154B1 (en) 2000-06-12 2001-05-22 General Motors Corporation Integral PCV system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181914A (en) * 1981-05-02 1982-11-09 Honda Motor Co Ltd Heater for lubricating oil of internal combustion engine
JP3423649B2 (ja) * 1999-09-03 2003-07-07 本田技研工業株式会社 内燃機関のブリーザ室構造
SE525410C2 (sv) * 2004-04-05 2005-02-15 Scania Cv Abp Anordning vid vevhusventilation i en förbränningsmotor och metod för uppvärmning av ett utlopp från en vevhusventilation
DE102004031499B4 (de) * 2004-06-30 2009-08-13 Daimler Ag Kurbelgehäuseentlüftungsleitung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6234154B1 (en) 2000-06-12 2001-05-22 General Motors Corporation Integral PCV system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2973071A1 (fr) * 2011-03-21 2012-09-28 Renault Sas Decanteur comportant un canal de refroidissement
WO2015090483A1 (de) * 2013-12-20 2015-06-25 Mtu Friedrichshafen Gmbh Verfahren zur verbesserung der kaltstarteigenschaft einer brennkraftmaschine und kurbelgehäuse-entlüftungeinrichtung dazu
CN105829705A (zh) * 2013-12-20 2016-08-03 Mtu 腓特烈港有限责任公司 用于改善内燃机的冷起动特性的方法以及为此的曲轴箱通风装置
US10184444B2 (en) 2013-12-20 2019-01-22 Mtu Friedrichshafen Gmbh Method for improving the cold start capacity of an internal combustion engine, and crankcase ventilating device for this purpose
EP3444454A4 (de) * 2016-09-02 2019-12-18 Kubota Corporation Blowby-gasheizung
US10704434B2 (en) 2016-09-02 2020-07-07 Kubota Corporation Blow-by gas heating apparatus
CN114941558A (zh) * 2022-05-09 2022-08-26 潍柴动力股份有限公司 一种气体含水量测量装置及方法
CN114941558B (zh) * 2022-05-09 2023-08-18 潍柴动力股份有限公司 一种气体含水量测量装置及方法
US12359593B2 (en) 2023-01-03 2025-07-15 Caterpillar Inc. Modular assemblies for crankcase oil separators
US12497912B2 (en) 2023-01-03 2025-12-16 Caterpillar Inc. Crankcase oil separator for internal combustion engine
US11946397B1 (en) 2023-05-01 2024-04-02 Caterpillar Inc. Pre-heated crankcase ventilation system architecture

Also Published As

Publication number Publication date
EP1965045A3 (de) 2010-10-13
FR2913249A1 (fr) 2008-09-05
EP1965045B1 (de) 2012-12-26
FR2913249B1 (fr) 2012-03-16

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