WO1998032955A1 - Moteur a combustion interne avec couvre-culasse - Google Patents

Moteur a combustion interne avec couvre-culasse Download PDF

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Publication number
WO1998032955A1
WO1998032955A1 PCT/EP1997/007304 EP9707304W WO9832955A1 WO 1998032955 A1 WO1998032955 A1 WO 1998032955A1 EP 9707304 W EP9707304 W EP 9707304W WO 9832955 A1 WO9832955 A1 WO 9832955A1
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
pressure control
valve chamber
control valve
Prior art date
Application number
PCT/EP1997/007304
Other languages
German (de)
English (en)
Inventor
Klaus Baumgärtner
Uwe Brückner
Heinz Jawurek
Ingolf Lorenz
Heinz Müller
Siegfried Müller
Berthold Wenz
Original Assignee
Filterwerk Mann+Hummel 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 Filterwerk Mann+Hummel Gmbh filed Critical Filterwerk Mann+Hummel Gmbh
Publication of WO1998032955A1 publication Critical patent/WO1998032955A1/fr

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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
    • F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
    • 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
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F01M13/023—Control valves in suction conduit

Definitions

  • the invention relates to an internal combustion engine with a valve chamber cover according to the features of the main claim.
  • the valve chamber cover closes off the upper part of an internal combustion engine and usually has an oil filler neck and an opening for the outlet of the blow-by gases.
  • baffle plates are known for this purpose, which are arranged in the valve chamber cover and form a calming zone for the blow-by gases.
  • these are complex to manufacture. They are also limited in their effectiveness, particularly when local spray protection devices are required at certain locations in the valve chamber.
  • the invention is therefore based on the object of providing an internal combustion engine with a valve chamber cover, the oil mist separation and the spray protection being improved.
  • the main advantage of the invention is that a complex part made of thermoplastic is arranged in the valve chamber cover, which optimally fulfills the requirements for a splash guard and oil mist separator.
  • a pressure control valve for the blow-by gases is integrated in the valve chamber cover. This ensures that there is a certain slight negative pressure in the crankcase.
  • the thermoplastic plastic element it has at least two surface parts that run in parallel and extend in two planes. One or more chambers can thus be formed which are suitable for guiding the blow-by gases.
  • the pressure control valve can be integrated inside the valve chamber cover or in its outer contour, in the latter the pressure control valve is accessible from the outside or can be easily installed from the outside.
  • An improvement in the degree of separation in the blow-by gases can be achieved according to one embodiment of the invention in that a centrifugal separator is connected upstream of the pressure control valve. This is arranged on the outer contour of the pressure control valve to save space.
  • a further improvement in the separation behavior is achieved by a fleece or filter element connected upstream of the pressure control valve or the centrifugal separator.
  • deflection surfaces or baffles can be provided in the guide chambers for the blow-by gases.
  • a pressure control element pressure control valve
  • another element made of thermoplastic material which is usually arranged on the valve chamber cover, is integrated into the outer surface of the valve chamber cover.
  • connection between the valve chamber cover and the element to be integrated consists, for example, of a snap or snap connection. It is provided according to an advantageous embodiment of the invention to match the individual components of the respective element so that they are fixed when the element is connected to the valve chamber cover.
  • FIG. 1 shows the sectional view of a valve chamber cover
  • FIG. 2 shows a further sectional illustration of a valve chamber cover
  • FIG. 3 shows a plastic element in a side view
  • FIG. 4 shows a plan view of a pressure control valve
  • FIG. 5 an integrated pressure control valve
  • valve chamber cover 10 of an internal combustion engine, not shown here, in particular a diesel engine.
  • the valve chamber cover is made, for example, from an aluminum die-cast material. Of course, there is also the possibility of producing them from a thermoplastic.
  • a thermoplastic plastic element 11 is located in this cover. This is snapped or snapped into the cover and has a first surface part 12, which is directly adjacent to the valve lifters or the valve train, and a second surface part 13, which is located in the upper part of the valve chamber cover 10 extending chamber 14 forms.
  • the element 11 also has stiffening ribs 15, 16, 17 and a baffle plate 18 with a passage 19 for the crankcase gases.
  • FIG. 2 shows the element 11 in another sectional plane.
  • an extension 20 is provided, which is designed with latching connection elements 21, 22 (alternatively with a screw connection).
  • FIG. 3 shows the element 11 made of thermoplastic plastic in a side view with the pressure control valve 23 for the blow-by gases attached.
  • a pressure control valve for blow-by gases is described, for example, in DE Patent 40 22 129 and explained in more detail.
  • the pressure control valve 23 has a housing 24. In this there is a membrane 25, a compression spring 26. The housing is closed with a cover 27.
  • blow-by gases flow according to arrow 28 into an outer chamber 29, from there via a tangential inlet (not shown here) into chamber 56 and, when the valve is open, as shown here with arrow 30, reach outlet opening 31 and from there into the intake tract of the internal combustion engine.
  • the valve consisting of membrane 25 and compression spring 26 closes the opening 32 and thus prevents the pressure in the crankcase from falling below a certain limit value.
  • the blow-by gases first enter the space between the two surface parts 12 and 13 of element 11, and flow from there upward according to arrow 35 through a fleece or oil separator element 36 to pressure control valve 23.
  • a fleece or oil separator element 36 In the area the fleece 36 and below the pressure control valve 23 drain pipes 37, 38 are provided. The separated oil collects in these.
  • a poppet valve 39, 40 arranged at the lower end of the drain pipes opens so that the oil collected in the drain pipe can flow back into the crankcase.
  • the element 11 is provided with baffle plates 41, 42 at certain positions. These have the task of preventing particularly strong spraying at certain points on the valve train.
  • FIG. 4 shows a plan view of a modified variant of a pressure control valve 23.
  • a centrifugal separator is provided in the outer chamber of the pressure control valve.
  • the blow-by gas flows through the opening 43 into the centrifugal separator, reaches a constriction 44, experiences a speed increase there and then passes through the opening 45 into the inner chamber 56 of the pressure control valve. From there it leaves the valve via the opening 32 and the connecting piece 46.
  • the oil adhering to the outer wall 47 flows back into the crankcase via a drain hole, not shown here.
  • FIG. 5 shows the integration of a pressure control valve in the outer contour of a valve chamber cover. Only a simple baffle plate 57 is arranged in the valve chamber cover.
  • the pressure control valve 23 in turn consists of a housing 24, a membrane 25 and a compression spring 26 and is closed by a cover 48.
  • the cover 48 is fixed to the housing 24 via a snap connection 58, the individual parts are positioned by this snap connection.
  • the pressure control valve is a complete part and can be tested as a component before it is installed in the valve chamber cover.
  • valve can be adapted to the outer structure of the valve chamber cover and thus fulfills the requirement for an optimal shape or certain surface structures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

L'invention a pour objet un moteur à combustion interne avec couvre-culasse. Le couvre-culasse présente un clapet de sûreté (23) pour les gaz de purge, ainsi qu'un élément en matière thermoplastique (11) utilisé comme protection contre les projections.
PCT/EP1997/007304 1997-01-22 1997-12-24 Moteur a combustion interne avec couvre-culasse WO1998032955A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997101977 DE19701977B4 (de) 1997-01-22 1997-01-22 Brennkraftmaschine mit einem Ventilkammerdeckel
DE19701977.3 1997-01-22

Publications (1)

Publication Number Publication Date
WO1998032955A1 true WO1998032955A1 (fr) 1998-07-30

Family

ID=7817927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/007304 WO1998032955A1 (fr) 1997-01-22 1997-12-24 Moteur a combustion interne avec couvre-culasse

Country Status (2)

Country Link
DE (1) DE19701977B4 (fr)
WO (1) WO1998032955A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6725849B2 (en) 2001-06-07 2004-04-27 Robert Bosch Gmbh Oil-separating device for crankcase gases in an internal combustion engine
DE102004041110A1 (de) * 2004-08-24 2006-03-02 Mahle Filtersysteme Gmbh Brennkraftmaschine und zugehörige Zylinderkopfhaube
DE102008035850A1 (de) 2007-08-17 2009-02-19 Dichtungstechnik G. Bruss Gmbh & Co. Kg Ölrücklaufventil für Kurbelgehäuseentlüftung
DE102010034615A1 (de) * 2010-08-18 2012-02-23 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Ölabscheider
EP2818653A1 (fr) 2013-06-25 2014-12-31 Dichtungstechnik G. Bruss GmbH & Co. KG Clapet anti-retour pour retour huile dans le système de blowby du carter d'un moteur à combustion interne
DE102016012711A1 (de) 2016-10-25 2018-04-26 Daimler Ag Einfülleinrichtung für eine Verbrennungskraftmaschine, insbesondere eines Kraftfahrzeugs
US10247068B2 (en) 2013-06-25 2019-04-02 BRUSS Sealing Systems GmbH Oil separating module in the crankcase ventilation system of a combustion engine

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2789125B1 (fr) * 1999-01-29 2001-11-09 Renault Dispositif de reaspiration des gaz de carter d'un moteur
JP3967552B2 (ja) * 2001-02-19 2007-08-29 本田技研工業株式会社 エンジン用気液分離装置
DE102004004753A1 (de) * 2004-01-30 2005-08-18 Mann + Hummel Gmbh Zylinderkopfhaube
DE102004010585A1 (de) * 2004-03-02 2005-09-29 Ab Skf Deckel zum dichten Abschließen einer Vorrichtung
DE102004014693A1 (de) * 2004-03-25 2005-10-13 Volkswagen Ag Druckregelventil für eine Brennkraftmaschine
DE202006010709U1 (de) * 2006-07-10 2007-11-22 Mann+Hummel Gmbh Zylinderkopfhaube für eine Brennkraftmaschine
DE202006011992U1 (de) * 2006-08-03 2007-12-20 Mann + Hummel Gmbh Gehäuse für eine Kurbelgehäuseentlüftungsvorrichtung
DE102010027787A1 (de) * 2010-04-15 2011-10-20 Hengst Gmbh & Co. Kg Ölnebelabscheider mit Abscheiderumgehungsventil
DE102010043060B4 (de) * 2010-10-28 2013-12-05 Mtu Friedrichshafen Gmbh Kurbelgehäuse und Brennkraftmaschine
DE102010054347A1 (de) * 2010-12-13 2012-06-14 Mann + Hummel Gmbh Kurbelgehäuseentlüftungsvorrichtung für eine Brennkraftmaschine
DE202012005909U1 (de) * 2012-06-16 2013-06-17 Reinz-Dichtungs-Gmbh Abdecksystem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326881A1 (de) * 1983-07-26 1984-05-24 Daimler-Benz Ag, 7000 Stuttgart Kurbelgehaeuseentlueftung fuer eine brennkraftmaschine
EP0399912A1 (fr) * 1989-05-25 1990-11-28 Lebranchu S.A. Procédé de fabrication d'un couvre-culasse à décanteur d'huile, et couvre-culasse obtenu par la mise en oeuvre de ce procédé
DE4022129A1 (de) * 1990-07-11 1992-01-16 Mann & Hummel Filter Druckregelventil fuer den einbau in eine entlueftungsleitung an einer brennkraftmaschine
US5129371A (en) * 1991-09-03 1992-07-14 Saturn Corporation Cam cover oil separator for crankcase ventilation
US5323740A (en) * 1993-07-13 1994-06-28 Saturn Corporation Molded dual cam cover

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766898A (en) * 1971-10-21 1973-10-23 Gen Motors Corp Crankcase ventilation valve
DE3152747C2 (de) * 1981-07-18 1984-01-26 Bayerische Motoren Werke Ag, 8000 Muenchen Zyklonölabscheider
JPS60237108A (ja) * 1984-05-09 1985-11-26 Uchiyama Mfg Corp オイルバツフルプレ−ト
US4602607A (en) * 1985-02-25 1986-07-29 General Motors Corporation Internal crankcase ventilation system with easily accessible PCV valve
JPH06229221A (ja) * 1993-01-30 1994-08-16 Suzuki Motor Corp ブローバイガス還流装置
DE4404709C1 (de) * 1994-02-15 1995-06-08 Freudenberg Carl Fa Flüssigkeitsabscheider

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326881A1 (de) * 1983-07-26 1984-05-24 Daimler-Benz Ag, 7000 Stuttgart Kurbelgehaeuseentlueftung fuer eine brennkraftmaschine
EP0399912A1 (fr) * 1989-05-25 1990-11-28 Lebranchu S.A. Procédé de fabrication d'un couvre-culasse à décanteur d'huile, et couvre-culasse obtenu par la mise en oeuvre de ce procédé
DE4022129A1 (de) * 1990-07-11 1992-01-16 Mann & Hummel Filter Druckregelventil fuer den einbau in eine entlueftungsleitung an einer brennkraftmaschine
US5129371A (en) * 1991-09-03 1992-07-14 Saturn Corporation Cam cover oil separator for crankcase ventilation
US5323740A (en) * 1993-07-13 1994-06-28 Saturn Corporation Molded dual cam cover

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6725849B2 (en) 2001-06-07 2004-04-27 Robert Bosch Gmbh Oil-separating device for crankcase gases in an internal combustion engine
DE102004041110A1 (de) * 2004-08-24 2006-03-02 Mahle Filtersysteme Gmbh Brennkraftmaschine und zugehörige Zylinderkopfhaube
DE102004041110B4 (de) * 2004-08-24 2018-12-20 Mahle Filtersysteme Gmbh Brennkraftmaschine und zugehörige Zylinderkopfhaube
DE102008035850A1 (de) 2007-08-17 2009-02-19 Dichtungstechnik G. Bruss Gmbh & Co. Kg Ölrücklaufventil für Kurbelgehäuseentlüftung
DE102010034615A1 (de) * 2010-08-18 2012-02-23 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Ölabscheider
EP2818653A1 (fr) 2013-06-25 2014-12-31 Dichtungstechnik G. Bruss GmbH & Co. KG Clapet anti-retour pour retour huile dans le système de blowby du carter d'un moteur à combustion interne
DE102013212104A1 (de) 2013-06-25 2015-01-08 Dichtungstechnik G. Bruss Gmbh & Co. Kg Rückschlagventil für einen Ölrücklauf in der Kurbelgehäuseentlüftung eines Verbrennungsmotors
US9416695B2 (en) 2013-06-25 2016-08-16 BRUSS Sealing Systems GmbH Non-return valve for an oil return in the crankcase ventilation system of a combustion engine
US10247068B2 (en) 2013-06-25 2019-04-02 BRUSS Sealing Systems GmbH Oil separating module in the crankcase ventilation system of a combustion engine
DE102013212104B4 (de) * 2013-06-25 2021-06-10 BRUSS Sealing Systems GmbH Zylinderkopfhaube mit Rückschlagventil für einen Ölrücklauf in der Kurbelgehäuseentlüftung eines Verbrennungsmotors
DE102016012711A1 (de) 2016-10-25 2018-04-26 Daimler Ag Einfülleinrichtung für eine Verbrennungskraftmaschine, insbesondere eines Kraftfahrzeugs

Also Published As

Publication number Publication date
DE19701977A1 (de) 1998-07-23
DE19701977B4 (de) 2006-11-23

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