EP0351521B1 - Ventilation du carter - Google Patents

Ventilation du carter Download PDF

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Publication number
EP0351521B1
EP0351521B1 EP89109354A EP89109354A EP0351521B1 EP 0351521 B1 EP0351521 B1 EP 0351521B1 EP 89109354 A EP89109354 A EP 89109354A EP 89109354 A EP89109354 A EP 89109354A EP 0351521 B1 EP0351521 B1 EP 0351521B1
Authority
EP
European Patent Office
Prior art keywords
ventilation
throttle
connexion
socket
duct
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
EP89109354A
Other languages
German (de)
English (en)
Other versions
EP0351521A2 (fr
EP0351521A3 (en
Inventor
Walter Dipl.-Ing. Töpfer
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche 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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP0351521A2 publication Critical patent/EP0351521A2/fr
Publication of EP0351521A3 publication Critical patent/EP0351521A3/de
Application granted granted Critical
Publication of EP0351521B1 publication Critical patent/EP0351521B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M15/00—Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel, or fuel-air mixture
    • F02M15/02—Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel, or fuel-air mixture with heating means, e.g. to combat ice-formation
    • F02M15/022—Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel, or fuel-air mixture with heating means, e.g. to combat ice-formation near to manually operated throttle valve
    • 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
    • F01M13/025—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction with an inlet-conduit via an air-filter
    • 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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling

Definitions

  • the invention relates to a crankcase ventilation according to the preamble of claim 1.
  • DE-C-952 221 discloses a crankcase ventilation for an internal combustion engine, in which a ventilation line leads from the internal combustion engine to a throttle valve housing. Within this housing, the ventilation line branches off and, by means of a channel, leads it to a main ventilation point located upstream of a throttle valve and opening into the intake air flow, and by means of a further channel it leads to a secondary ventilation point opening downstream of the throttle valve.
  • a heated throttle valve housing is known from FR-A-1 570 588, around which a pipe connected to the coolant circuit of the internal combustion engine is looped in the region of the throttle valve and a ventilation point.
  • the object of the present invention is to provide a crankcase ventilation, which ventilates the crankcase in the air intake tract in normal load operation as well as in coasting or idling operation of the internal combustion engine, and in which icing of the ventilation points in the air intake tract is prevented.
  • this object is achieved by the characterizing features of claim 1. Further features which advantageously design the invention are specified in the subclaims.
  • the advantages of the invention can be seen in particular in the fact that the crankcase is vented in a simple manner at all positions of the throttle valve, and that icing of these points is achieved with it by the arrangement of an annular channel through which coolant flows in the immediate vicinity of the throttle valve and the venting points and the throttle valve is prevented.
  • only one line, usually in the form of a hose is necessary for the supply of the crankcase gases into the throttle valve housing. This reduces component costs as well assembly and service costs.
  • the throttle valve housing can be produced in one piece with all connections.
  • An internal combustion engine 1 is supplied with fresh air through an air intake tract 2 .
  • the fresh air is first conveyed by the internal combustion engine 1 through an intake port 3 and an air filter 4 .
  • the fresh air flows through a pipe section 5 and then through a throttle valve housing 6 , in which an adjustable throttle valve 7 is arranged.
  • the fresh air then flows into an air collector 8 and from there through suction pipes 9 into the combustion chambers of the internal combustion engine 1 .
  • the internal combustion engine 1 has a crankcase ventilation point 10 , from which a ventilation line 11 leads to the throttle valve housing 6 and is fastened there to a connecting piece 12 .
  • the end of the connecting piece 12 located within the throttle valve housing 6 is closed with a disk 13 .
  • the disk 13 has two channels 14 , 15 penetrating it, channel 14 opening into the main ventilation point 16 and channel 15 opening into the secondary ventilation point 17 .
  • the main ventilation point 16 is located upstream in front of the throttle valve 7 , the secondary ventilation point 17 downstream behind the throttle valve 7 .
  • the channel 15 and the secondary ventilation point 17 have a significantly smaller cross-sectional area than the channel 14 and the main ventilation point 16 .
  • throttle valve 7 is open.
  • the air flowing through the air intake tract 2 has a lower pressure than the gases in the crankcase of the internal combustion engine 1 .
  • This pressure drop conveys the crankcase gases through the ventilation line 11 from the internal combustion engine 1 to the throttle valve housing 6 . Due to the larger cross-sectional area of the main ventilation point 16 , the crankcase gases predominantly flow through this ventilation point 16 into the air intake tract 2 and are mixed there with the fresh air flowing in and fed to the internal combustion engine 1 .
  • the cross-sectional areas of the channels 14 and 15 are dimensioned in such a way that the volume of crankcase gases produced can be safely removed.
  • the throttle valve housing 6 is closed by the throttle valve 7 which is transverse to the direction of flow of the intake air.
  • the throttle valve 7 separates the main ventilation point 16 from the secondary ventilation point 17 . Since the internal combustion engine 1 continues to try to promote fresh air through the air intake section 2 and the throttle valve 7 blocks the air intake 2, 7 lying part of the air intake tract 2 creates a strong negative pressure in the downstream of the throttle valve. This negative pressure sucks the crankcase gases through the channel 14 to the secondary ventilation point 17 .
  • the outlet area of the secondary ventilation point 17 is dimensioned significantly smaller than that of the main ventilation point 16 , since the amount of crankcase gases occurring in overrun or idling operation is correspondingly small.
  • an annular channel 18 is arranged, which is concentric with the throttle valve 7 and runs at a short distance from the connecting piece 12 and the channels 14 , 15 .
  • This channel 18 is connected via an inlet 19 and an outlet 20 to the cooling water circuit of the internal combustion engine 1 .
  • a thermostatic valve 21 which is inserted with an air temperature sensor 22 into the pipe section 5 of the intake tract 2 , regulates the coolant supply as a function of and within certain limits of the intake air temperature.
  • the arrangement of the venting points 16 , 17 in the vicinity of the channel 18 also advantageously prevents these venting points 16 , 17 from icing up.
  • the channels 14 , 15 are inexpensive to produce in the disc 13 as bores.
  • the connecting piece 12 can alternatively be made in one piece with the disc 13 as a casting. To reduce the assembly effort, in a further embodiment of the invention the connecting piece 12 can be produced in one piece with the throttle valve housing 6 and the disk 13 as a cast part.

Claims (6)

  1. Ventilation du carter d'un moteur à combustion interne (1), comportant un conduit d'aération (11) sur le moteur à comoustion interne (1), menant à une tubulure de raccord (12) d'un boîtier de papillon des gaz (6) et comportant des canaux (14, 15), situés à l'intérieur du boîtier (6), un canal (15) menant à un point d'aération principal (16) débouchant dans un flux d'air d'admission, en amont d'un papillon des gaz (7) et le canal (14) menant à un point d'aération secondaire (17) situé en aval, caractérisée en ce qu'il est prévu dans le boîtier (6) un canal (18) annulaire, raccordé à un circuit de réfrigérant chauffé par celui-ci, qui s'étend à proximité de la tubulure de raccord (12) et des deux points d'aération (16, 17) et en ce que la tubulure de raccord (12) est montée radialement dans le boîtier (6), cette tubulure de raccord (12) étant fermée, à son extrémité située dans le boîtier (6), par un fond (13) circulaire dans lequel sont formés le canal (15) menant au point d'aération principal (16) et le canal (14), menant au point d'aération secondaire (17).
  2. Ventilation de carter selon la revendication 1, caractérisée en ce que le fond (13) est un disque (13) circulaire qui est relié à la tubulure de raccord (12).
  3. Ventilation de carter selon la revendication 2, caractérisée en ce que la tubulure de raccord (12) est réalisée d'un seul tenant avec le fond (13), sous la forme d'une pièce en fonte.
  4. Ventilation de carter selon les revendications 2 ou 3, caractérisée en ce que le boîtier (6) du papillon des gaz est réalisé d'un seul tenant avec la tubulure de raccord (12) et le fond (13), sous la forme d'une pièce en fonte.
  5. Ventilation de carter selon l'une des revendications 2 à 4, caractérisée en ce que les canaux (14, 15) sont des alésages.
  6. Ventilation de carter selon la revendication 1, caractérisée en ce que l'arrivée de réfrigérant (19) est réglée en fonction de la température de l'air d'admission, par une soupape à thermostat (21), montée dans celle-ci et montée avec une sonde de température d'air (22) dans le circuit d'admission d'air (2).
EP89109354A 1988-07-21 1989-05-24 Ventilation du carter Expired - Lifetime EP0351521B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824791 1988-07-21
DE3824791A DE3824791A1 (de) 1988-07-21 1988-07-21 Kurbelgehaeuseentlueftung

Publications (3)

Publication Number Publication Date
EP0351521A2 EP0351521A2 (fr) 1990-01-24
EP0351521A3 EP0351521A3 (en) 1990-05-30
EP0351521B1 true EP0351521B1 (fr) 1993-08-11

Family

ID=6359228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109354A Expired - Lifetime EP0351521B1 (fr) 1988-07-21 1989-05-24 Ventilation du carter

Country Status (5)

Country Link
US (1) US4922882A (fr)
EP (1) EP0351521B1 (fr)
JP (1) JP2662441B2 (fr)
DE (2) DE3824791A1 (fr)
SU (1) SU1704642A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007062772A1 (de) 2007-12-27 2009-07-02 Baerlocher Gmbh Fettsäuresalzgemisch als Hydrophobierungsmittel für Baumaterialien
WO2020249763A1 (fr) 2019-06-13 2020-12-17 Baerlocher Gmbh Additifs hydrophobes pour matériaux de construction

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0449617U (fr) * 1990-08-29 1992-04-27
DE4239108A1 (de) * 1992-11-20 1994-05-26 Opel Adam Ag Vorrichtung zur Entlüftung des Kurbelgehäuses einer Brennkraftmaschine mit V-förmig angeordneten Zylindern
US5284122A (en) * 1993-03-04 1994-02-08 Kohler Co. Anti-icing heater for an engine carburetor
GB9311883D0 (en) * 1993-06-09 1993-07-28 Gen Motors Corp A throttle mechanism
TW258779B (fr) * 1993-08-13 1995-10-01 Kuse Giichi
US5385132A (en) * 1993-12-14 1995-01-31 Caterpillar Inc. Engine fluid system
JPH0893433A (ja) * 1994-09-29 1996-04-09 Honda Motor Co Ltd バーチカル型多気筒エンジンのブローバイガス還流装置
US5531207A (en) * 1995-07-05 1996-07-02 Lin; Jung-Chih Multi-step engine air intake volume control device
DE19525542A1 (de) * 1995-07-13 1997-01-16 Mann & Hummel Filter Heizeinrichtung
JPH09317569A (ja) * 1996-05-22 1997-12-09 Nippon Soken Inc エンジンのガス還流装置
DE19709910C2 (de) 1997-03-11 1999-05-20 Daimler Chrysler Ag Kurbelgehäuseentlüftung für eine Brennkraftmaschine
JP3477021B2 (ja) * 1997-03-28 2003-12-10 三菱電機株式会社 内燃機関の吸気装置
DE19717040C1 (de) * 1997-04-23 1998-11-26 Mannesmann Vdo Ag Entlüftungsvorrichtung in einer zu einer Saugrohranordnung einer Brennkraftmaschine hinführenden Entlüftungsleitung
DE19734001A1 (de) 1997-08-06 1999-02-11 Opel Adam Ag Kurbelgehäuse-Entlüftung
US6467468B1 (en) * 1999-11-01 2002-10-22 Siemens Vdo Automotive Inc. Throttle position sensor that heats the throttle shaft
JP2002155721A (ja) * 2000-11-20 2002-05-31 Sanshin Ind Co Ltd 小型船舶の推進装置におけるブリーザ装置
DE10114221A1 (de) * 2001-03-23 2002-10-02 Bosch Gmbh Robert Beheizbare Drosselvorrichtung für Brennkraftmaschinen
CA2378997A1 (fr) * 2001-04-23 2002-10-23 Huron, Inc. Rechauffeur de gaz degage pour entree d'air moteur
JP2003214131A (ja) * 2002-01-25 2003-07-30 Toyota Motor Corp Ｐｃｖ装置
DE10212125A1 (de) * 2002-03-19 2003-10-02 Delphi Tech Inc Drosselklappenstutzen
ATE287060T1 (de) * 2002-06-27 2005-01-15 David & Baader Dbk Spezfab Heizvorrichtung für eine fluidleitung und verfahren zur herstellung
FR2851315A1 (fr) 2003-02-19 2004-08-20 Coutier Moulage Gen Ind Vanne de regulation d'un fluide equipee d'un dispositif de chauffage
DE102004043545A1 (de) * 2004-09-09 2006-03-30 Audi Ag Kurbelgehäuseentlüftungseinrichtung für eine Brennkraftmaschine eines Kraftfahrzeuges
DE102004056442A1 (de) * 2004-11-23 2006-05-24 Mann + Hummel Gmbh Gasüberleitungsanordnung mit Drosselbohrung
DE102005051434A1 (de) * 2005-10-27 2007-05-03 Bayerische Motoren Werke Ag Brennkraftmaschine mit einer Sauganlage
ITMI20060942A1 (it) * 2006-05-12 2007-11-13 Iveco Spa Sistema di riscaldamento dei vapori di olio in circolazione esterna ad un motore di veicolo
JP4536105B2 (ja) * 2007-11-19 2010-09-01 株式会社デンソー 内燃機関の吸気装置
DE102007062773A1 (de) 2007-12-27 2009-07-02 Baerlocher Gmbh Hydrophobiertes Bindemittelgemisch und daraus hergestellte Baumaterialien
RU2447295C1 (ru) * 2008-02-26 2012-04-10 Вольво Ластвагнар Аб Система вентиляции картера двигателя
DE102010020844A1 (de) 2010-05-18 2011-11-24 Dbk David + Baader Gmbh Verfahren zum Steuern einer Blowby-Funktion und Blowby-Einrichtung
DE102010033757A1 (de) 2010-08-09 2012-02-09 Dbk David + Baader Gmbh Fluidleiteinrichtung
US8767817B1 (en) 2011-04-07 2014-07-01 Google Inc. Apparatus and method for coding using parameterized equation
DE102011118790B4 (de) 2011-11-17 2014-12-11 A. Kayser Automotive Systems Gmbh Kurbelgehäuseentlüftung für eine Brennkraftmaschine und Verbindungssystem hierfür
DE102011122967B3 (de) 2011-11-17 2018-08-02 A. Kayser Automotive Systems Gmbh Kurbelgehäuseentlüftung für eine Brennkraftmaschine, Kraftstofftankentlüftungsleitung und Verbindungssystem hierfür
DE102013001389B4 (de) 2013-01-25 2015-10-29 A. Kayser Automotive Systems Gmbh Kurbelgehäuseentlüftung für eine Brennkraftmaschine, Tankentlüftungsleitung und Verbindungssytem hierfür
DE102013105131A1 (de) 2013-05-17 2014-11-20 Dbk David + Baader Gmbh Blowby-Einrichtung
DE102013215420A1 (de) * 2013-08-06 2015-02-12 Volkswagen Aktiengesellschaft Brennkraftmaschine
DE202013008611U1 (de) * 2013-09-26 2014-09-29 Reinz-Dichtungs-Gmbh Entlüftungssystem für aufgeladene Brennkraftmaschinen
DE102014102596A1 (de) 2013-12-24 2015-06-25 Dbk David + Baader Gmbh Blowby-Einrichtung
CN115773166B (zh) * 2022-11-29 2024-04-12 重庆长安汽车股份有限公司 一种预防曲轴箱通风管路结冰的结构及方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281124A (en) * 1940-02-07 1942-04-28 Bendix Aviat Corp Internal combustion engine
US2516547A (en) * 1946-06-21 1950-07-25 Carter Carburetor Corp Crankcase ventilator
US2489230A (en) * 1946-09-20 1949-11-22 Bendix Aviat Corp Internal-combustion engine
US2737935A (en) * 1953-01-09 1956-03-13 Gen Motors Corp Crankcase ventilator
FR1401955A (fr) * 1961-09-26 1965-06-11 Procédés et appareils pour éviter la condensation et le givrage, notamment à l'intérieur du venturi de carburateurs et instruments analogues
US3116727A (en) * 1963-02-04 1964-01-07 Gen Motors Corp Crankcase ventilating system
US3381673A (en) * 1965-11-22 1968-05-07 Drysdale William Robert Crankcase ventilation system
US3364910A (en) * 1966-03-24 1968-01-23 Auto Quip Inc Flow restricting means for crankcase ventilation systems
DE1576355A1 (de) * 1967-03-21 1970-04-09 Daimler Benz Ag Vorrichtung zum Entlueften des Gehaeuses von Einspritz-Brennkraftmaschinen
US3500806A (en) * 1968-04-12 1970-03-17 Chrysler Corp Preheating inlet air during engine idling
US4102314A (en) * 1977-03-30 1978-07-25 Chrysler Corporation Crankcase ventilation
DE2949096C2 (de) * 1979-12-06 1983-05-11 Bosch und Pierburg System oHG, 4040 Neuss Gemischbildner für Brennkraftmaschinen
JPS6270653A (ja) * 1985-09-24 1987-04-01 Yamaha Motor Co Ltd Ｖ形エンジンの排気浄化装置
DE3726332C1 (de) * 1987-08-07 1988-06-23 Bayerische Motoren Werke Ag Ansaugleitungsteil einer Brennkraftmaschine
US4805564A (en) * 1987-09-22 1989-02-21 Sharon Manufacturing Company Engine intake manifold assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007062772A1 (de) 2007-12-27 2009-07-02 Baerlocher Gmbh Fettsäuresalzgemisch als Hydrophobierungsmittel für Baumaterialien
WO2020249763A1 (fr) 2019-06-13 2020-12-17 Baerlocher Gmbh Additifs hydrophobes pour matériaux de construction

Also Published As

Publication number Publication date
EP0351521A2 (fr) 1990-01-24
EP0351521A3 (en) 1990-05-30
JP2662441B2 (ja) 1997-10-15
SU1704642A3 (ru) 1992-01-07
DE3824791A1 (de) 1990-01-25
JPH0267414A (ja) 1990-03-07
DE58905231D1 (de) 1993-09-16
US4922882A (en) 1990-05-08

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