EP0874141B1 - Dispositif d'aération pour le conduit menant à la pipe d'admission d'un moteur à combustion - Google Patents

Dispositif d'aération pour le conduit menant à la pipe d'admission d'un moteur à combustion Download PDF

Info

Publication number
EP0874141B1
EP0874141B1 EP98106568A EP98106568A EP0874141B1 EP 0874141 B1 EP0874141 B1 EP 0874141B1 EP 98106568 A EP98106568 A EP 98106568A EP 98106568 A EP98106568 A EP 98106568A EP 0874141 B1 EP0874141 B1 EP 0874141B1
Authority
EP
European Patent Office
Prior art keywords
metal sleeve
throttle
breather
combustion engine
internal combustion
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.)
Expired - Lifetime
Application number
EP98106568A
Other languages
German (de)
English (en)
Other versions
EP0874141A1 (fr
Inventor
Jens Bieler
Peter Werner
Matthias Zentgraf
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.)
Daimler AG
Mannesmann VDO AG
Original Assignee
DaimlerChrysler AG
Mannesmann VDO 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 DaimlerChrysler AG, Mannesmann VDO AG filed Critical DaimlerChrysler AG
Publication of EP0874141A1 publication Critical patent/EP0874141A1/fr
Application granted granted Critical
Publication of EP0874141B1 publication Critical patent/EP0874141B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • F01M13/0011—Breather valves
    • F01M2013/0027—Breather valves with a de-icing or defrosting system
    • 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
    • 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
    • F01M2013/0472—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil using heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Definitions

  • the invention relates to a ventilation device in a ventilation pipe leading to a suction pipe arrangement of an internal combustion engine with a throttle acting as a flow restrictor, the suction pipe arrangement consisting of a plastic component with an inlet-side connecting piece for the ventilation pipe and an outlet, and also with a metal sleeve firmly inserted in a through hole of the plastic component with a fastening screw that firmly clamps the plastic part over the metal sleeve to the cylinder head of the internal combustion engine.
  • vent line extending from the crankcase of the multi-cylinder internal combustion engine is flanged to an intake manifold arrangement designed as a plastic component.
  • the throttle is located between the crankcase and the intake manifold arrangement in the area near the intake manifold as a flow-determining intermediate piece.
  • the invention is therefore based on the object of providing simple measures on a ventilation device of the generic type, by means of which functional impairments or even failures of the crankcase ventilation can be avoided even at extremely low outside temperatures.
  • An advantageous embodiment of the invention results from the fact that the throttle is integrated as a line intermediate piece in the metal sleeve. This enables a rapid rise in temperature or rapid heating during engine operation when the outside temperature is low and the engine is cold.
  • a four-cylinder internal combustion engine 1 with four intake pipes 2, 3, 4, 5 arranged in series has a ventilation line 7 leading to the intake pipe arrangement 6 and serving for crankcase ventilation, which connects between the adjacent and internal intake pipes 3, 4 on the intake pipe arrangement 6 designed as a plastic component is, namely on an inlet-side connecting piece 8 molded onto the plastic component.
  • the plastic component contains a step-shaped elongated through hole 9, which is crossed in its lower half by the ventilation line 7.
  • the inlet connection 8 of the ventilation line 7, which opens radially into the through hole 9, and an outlet formed by a radial bore 10 are offset in height from one another, the connection 8 being arranged higher than the radial bore 10 on the outlet side.
  • a metal sleeve 11 acting as a spacer, which extends over the entire length of the Through hole 9 extends.
  • This metal sleeve 11 has a throttle 12 at the level of the connecting piece 8, which is located at the geodetically highest point of the crankcase ventilation and extends as a radial bore in extension to the connecting piece 8 and connects the connecting piece 8 to an annular space 13, which of the inner wall 14 Metal sleeve 11 and a fastening screw 15 inserted in the metal sleeve 11 is formed.
  • the annular space 13 begins just above the throttle 12 at a point 13 a and ends at the lower end of the metal sleeve 11.

Landscapes

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

Claims (4)

  1. Dispositif de mise à l'air dans une conduite de mise à air (7) menant à une tubulure d'admission (6) d'un moteur à combustion interne (1), comportant un étranglement (12) faisant office de limitateur de débit, la tubulure d'admission (6) étant constituée par un composant en matière plastique avec un manchon de raccordement (8) côté admission pour la conduite de mise à l'air (7) et avec une sortie, comportant en outre une douille métallique (11) fermement mise en place dans un perçage traversant (9) du composant en matière plastique et comprenant une vis de fixation (15) qui serre fermement le composant en matière plastique via la douille métallique (11) sur la culasse (18) du moteur à combustion interne (1), caractérisé en ce que l'étranglement (12) est agencé, en tant que partie de la conduite de mise à l'air (7), dans la zone de la douille métallique (11) thermiquement conductrice.
  2. Dispositif de mise à l'air selon la revendication 1, caractérisé en ce que la conduite de mise à l'air (7) croise le perçage traversant (9) et la douille métallique (11), l'étranglement (12) étant intégré dans la douille métallique (11).
  3. Dispositif de mise à l'air selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que l'étranglement (12) qui s'étend dans la douille métallique (11) en prolongement du manchon de raccordement (8) côté admission débouche dans un intervalle annulaire (13) formé par la douille métallique (11) et par la vis de fixation (15), et en ce qu'un perçage radial (10) côté sortie dans la tubulure d'admission (6) est relié via un perçage radial (16) de diamètre plus grand dans la douille métallique (11) à l'intervalle annulaire (13).
  4. Dispositif de mise à l'air selon la revendication 1, destiné à un moteur à combustion interne à quatre cylindres ou plus comportant un nombre de tubulures d'admission correspondant au nombre des cylindres, caractérisé en ce que le manchon de raccordement (8) côté entrée ainsi que l'étranglement (12) sont agencés entre deux tubulures d'admission voisines (3, 4) situées au milieu, l'étranglement (12) étant situé au point géodésiquement le plus haut de la mise à l'air du boîtier de vilebrequin.
EP98106568A 1997-04-23 1998-04-09 Dispositif d'aération pour le conduit menant à la pipe d'admission d'un moteur à combustion Expired - Lifetime EP0874141B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19717040 1997-04-23
DE19717040A DE19717040C1 (de) 1997-04-23 1997-04-23 Entlüftungsvorrichtung in einer zu einer Saugrohranordnung einer Brennkraftmaschine hinführenden Entlüftungsleitung

Publications (2)

Publication Number Publication Date
EP0874141A1 EP0874141A1 (fr) 1998-10-28
EP0874141B1 true EP0874141B1 (fr) 2002-02-27

Family

ID=7827436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98106568A Expired - Lifetime EP0874141B1 (fr) 1997-04-23 1998-04-09 Dispositif d'aération pour le conduit menant à la pipe d'admission d'un moteur à combustion

Country Status (3)

Country Link
US (1) US5944000A (fr)
EP (1) EP0874141B1 (fr)
DE (2) DE19717040C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20014711U1 (de) 2000-08-25 2000-11-23 Mann & Hummel Filter Vorrichtung zur Rückführung von Gas an einem Verbrennungsmotor
DE10136463B4 (de) * 2001-07-26 2010-04-15 Man Nutzfahrzeuge Ag Kurbelgehäuseentlüftung
DE102004020102A1 (de) * 2004-04-24 2005-11-24 Mann + Hummel Gmbh Saugrohranordnung für einen Verbrennungsmotor
DE102004031499B4 (de) * 2004-06-30 2009-08-13 Daimler Ag Kurbelgehäuseentlüftungsleitung
DE102010005828A1 (de) * 2010-01-27 2011-07-28 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Mich. Lufteinlassvorrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525882A (en) * 1924-07-14 1925-02-10 Joseph I Padgett Engine attachment
GB1258511A (fr) * 1968-07-17 1971-12-30
US4024846A (en) * 1974-11-01 1977-05-24 The Ferry Cap & Set Screw Company Valve device and system employing the same
JPS6010813U (ja) * 1983-06-30 1985-01-25 株式会社クボタ エンジンのブロ−バイガスの燃焼室還元装置
US4768493A (en) * 1984-04-27 1988-09-06 Honda Giken Kogyo Kabushiki Kaisha Blow-by gas heating system for internal combustion engines
DE3625376C1 (de) * 1986-07-26 1987-10-29 Porsche Ag Kurbelgehaeuseentlueftung fuer Kraftfahrzeuge
DE3824791A1 (de) * 1988-07-21 1990-01-25 Porsche Ag Kurbelgehaeuseentlueftung
DE19525542A1 (de) * 1995-07-13 1997-01-16 Mann & Hummel Filter Heizeinrichtung
JP3537554B2 (ja) * 1995-08-30 2004-06-14 ヤマハマリン株式会社 船外機のブローバイガス還元装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MTZ Motortechnische Zeitschrift 53 (1992) 10 *

Also Published As

Publication number Publication date
DE19717040C1 (de) 1998-11-26
DE59803163D1 (de) 2002-04-04
EP0874141A1 (fr) 1998-10-28
US5944000A (en) 1999-08-31

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