EP1813785B1 - Soupape de réglage de pression - Google Patents

Soupape de réglage de pression Download PDF

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Publication number
EP1813785B1
EP1813785B1 EP07100570A EP07100570A EP1813785B1 EP 1813785 B1 EP1813785 B1 EP 1813785B1 EP 07100570 A EP07100570 A EP 07100570A EP 07100570 A EP07100570 A EP 07100570A EP 1813785 B1 EP1813785 B1 EP 1813785B1
Authority
EP
European Patent Office
Prior art keywords
valve
pressure control
housing
control valve
pump
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.)
Not-in-force
Application number
EP07100570A
Other languages
German (de)
English (en)
Other versions
EP1813785A1 (fr
Inventor
Hans-Werner Holch
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.)
Mann and Hummel GmbH
Original Assignee
Mann and 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 Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1813785A1 publication Critical patent/EP1813785A1/fr
Application granted granted Critical
Publication of EP1813785B1 publication Critical patent/EP1813785B1/fr
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
    • F01M13/02—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
    • F01M2013/0016—Breather valves with a membrane

Definitions

  • a pressure regulating valve for installation in a vent line to an internal combustion engine is known in the valve housing, a valve arrangement is provided in the flow connection between an input and an output.
  • the inlet of the valve housing is connected to the crankcase of the internal combustion engine, while the intake pipe of the internal combustion engine is connected to the outlet of the known pressure control valve. Due to the higher negative pressure in the intake manifold gases are sucked out of the crankcase. If the pressure difference between the outlet and the inlet of the pressure regulating valve is too high, the valve arrangement closes the available valve opening in the interior of the valve housing, so that the gas passage is interrupted.
  • a multi-stage valve arrangement is provided in the known pressure control valve.
  • a suction jet pump which is fed by bypassing the check valve of a first output from the vent line connected to this output.
  • the suction jet pump generates a negative pressure in the valve housing, which sucks the gases to be vented, for example, from a crankcase through the inlet of the valve housing under an overpressure in the vent line feeding them.
  • the pump nozzle of the suction jet pump is connected to the second output of the pump housing, whereby a flow through the valve housing results from the first output to the second output, which entrains the gases to be vented and discharged via the second vent line.
  • a return flow from the suction jet pump-feeding vent line into the valve housing is excluded by the check valve.
  • Fig. 1 a schematic view of an internal combustion engine with a pressure control valve
  • a vent line 15 is connected to the crankcase 7 of the internal combustion engine 1.
  • the extracted exhaust gases are added to the combustion air of the internal combustion engine 1 and burned in the internal combustion engine 1.
  • the vent line 15 is connected to the input 9 of the bottom of Fig. 2 closer described pressure relief valve 8 connected.
  • the valve housing 12 of the pressure relief valve 8 comprises two outputs 10, 11, wherein a first output 10 is connected via a vent line 14 to the suction pipe 2.
  • a further vent line 13 is connected, which opens in the flow direction 16 in front of the loader 5 and the throttle valve 4 in the air scoop 6 of the supercharger 5.
  • Der Ladevorraum 5 ist in dem Ventilgephase 5 anrobe.
  • the connection of the vent line 13 to the air scoop 6 is located in the flow direction 16 to the air filter 3, whereby the exhaust gases from the crankcase 7 are kept away from the air filter 3.
  • the pressure regulating valve 8 is in Fig. 2 shown in a cross-sectional view.
  • the two outputs 10, 11 of the valve housing 12 are each equipped with an outwardly opening check valve 17, 18.
  • the two outputs 10, 11 are arranged at the ends of an elongate housing portion 27 of the valve housing 12, wherein the check valves 17, 18 are coaxial with a longitudinal axis 23 of the elongated housing portion 27.
  • the stretched housing portion 27 is integrally connected to a cup-shaped housing portion 25 which is formed in the embodiment rotationally symmetrical to a transverse to the longitudinal axis 23 transverse axis 28 of the pressure control valve 8.
  • the pot housing 25 has the input of the Valve housing 12, which is connected to the crankcase 7 of the internal combustion engine.
  • a flow connection between the interior of the pot housing 25 and the elongated housing portion 27 is formed by a cylindrical collar 32 which extends into the interior of the pot housing 25 and serves as a valve seat for the valve member of the pressure regulating valve 8.
  • the pressure control valve 8 is formed in two stages, with a membrane 30, the interior of the pot housing 25 shares.
  • the membrane 30 is clamped with a cover 26 closing the pot housing 25 on the circumference of the pot housing 25.
  • the membrane is centrally connected to a valve plate 29 which is the pressure ratios on both sides of the diaphragm 30 corresponding to the axis 28 movable.
  • the valve plate 29 cooperates with a cylindrical cap 36, which is arranged coaxially to the cylindrical housing portion 31 and against the restoring force of a coil spring 32 on the cylindrical housing portion 31 is finally placed.
  • a suction jet pump 19 is integrated, which consists essentially of a nozzle needle 20 and a pump nozzle 21.
  • the nozzle needle 20 is formed on the check valve 17 in the first output 10 and is fluidly connected, bypassing the check valve 17 with the vent line connected to this output 10.
  • the nozzle needle 20 forms the plunger of the outwardly opening check valve 17.
  • the check valve 18 of the second output 11 is equipped with a simple plunger 34.
  • the flow channel 24 of the nozzle needle 20 passes through the closure member of the check valve 27 and is connected through an opening in the piston head of the closure member to the outlet 10 of the valve housing 12.
  • the nozzle needle 20 is directed to the entrance of a pump nozzle 21, which is connected to the second output 11.
  • the pump nozzle 21 is formed with its diffuser 33 through the housing wall of the elongated housing portion 27 of the valve housing 12.
  • the tip of the nozzle needle 20 extends with its tip in the central region of the cylindrical housing portion 31, through which the gases to be sucked are sucked into the stretched portion 27 of the valve housing 12.
  • the nozzle needle 20 is guided as a plunger of the check valve 17 in a projecting into the interior of the housing wall part longitudinally movable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (10)

  1. Soupape de régulation de pression pour l'évacuation d'air d'un moteur à combustion interne (1) dont le boîtier (2) comporte une entrée (9) et deux sorties (10, 11) auxquelles est reliée chaque fois une conduite d'évacuation d'air (13,14,15) et chaque sortie (10, 11) comporte un clapet anti-retour (17, 18) s'ouvrant vers l'extérieur,
    caractérisée en ce qu'
    une pompe à jet aspirant (19) est intégrée dans le boîtier de soupape (12) entre les sorties (10, 11), cette pompe ayant une tuyère (21) et une aiguille (20) dirigée vers la tuyère (21),
    l'aiguille (20) étant reliée en contournant le clapet anti-retour (17) d'une première sortie (10) avec la conduite d'évacuation d'air (14) raccordée à cette sortie (10) et
    la tuyère (21) est raccordée à la seconde sortie (11) du boîtier de pompe (12).
  2. Soupape de régulation de pression selon la revendication 1,
    caractérisée en ce que
    l'aiguille (20) forme un poussoir de clapet anti-retour (17) guidé dans son mouvement longitudinal, au niveau de la première sortie (10) et porte l'organe d'obturation du clapet anti-retour (17),
    un canal (24) traversant l'intérieur de l'aiguille (20) de l'organe d'obturation.
  3. Soupape de régulation de pression selon la revendication 1 ou 2,
    caractérisée en ce qu'
    une paroi du boîtier de soupape (12) forme la tuyère (21) de la pompe à jet aspirant (19).
  4. Soupape de régulation de pression selon l'une des revendications 1 à 3,
    caractérisée en ce que
    les sorties (10, 11) sont coaxiales.
  5. Soupape de régulation de pression selon l'une des revendications 1 à 4,
    caractérisée en ce que
    la première sortie (10) du boîtier de soupape (12) est reliée à la tubulure d'aspiration (2) du moteur à combustion interne (1), la conduite d'évacuation d'air (14) reliée à la première sortie (10) débouchant en aval d'un volet d'étranglement (4), selon le sens de passage, dans la tubulure d'aspiration (2).
  6. Soupape de régulation de pression selon l'une des revendications 1 à 5,
    caractérisée en ce que
    la seconde sortie (11) du boîtier de soupape (12) est reliée à une zone d'alimentation d'un dispositif de suralimentation (5) du moteur à combustion interne (1).
  7. Soupape de régulation de pression selon l'une des revendications 1 à 6,
    caractérisée en ce que
    la soupape de régulation de pression (8) est à deux étages.
  8. Soupape de régulation de pression selon l'une des revendications 1 à 7,
    caractérisée en ce que
    l'organe d'obturation de la soupape de régulation de pression (8) est logé dans un segment (22) en forme de pot du boîtier de soupape (12) se poursuivant par un segment de boîtier (27), allongé, du boîtier de soupape (12) intégrant la pompe à jet aspirant (19).
  9. Soupape de régulation de pression selon la revendication 8,
    caractérisée en ce que
    l'entrée de la tuyère (21) de la pompe à jet aspirant (19) se situe dans la région d'une liaison fluidique (31) entre le segment (25) en forme de pot et le segment allongé (27) du boîtier de soupape (12).
  10. Soupape de régulation de pression selon la revendication 9,
    caractérisée en ce que
    le segment allongé (27) du boîtier de soupape (12) fait une seule pièce avec le segment en forme de pot (25) du boîtier de soupape (12).
EP07100570A 2006-01-27 2007-01-16 Soupape de réglage de pression Not-in-force EP1813785B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006001287U DE202006001287U1 (de) 2006-01-27 2006-01-27 Druckregelventil

Publications (2)

Publication Number Publication Date
EP1813785A1 EP1813785A1 (fr) 2007-08-01
EP1813785B1 true EP1813785B1 (fr) 2008-04-02

Family

ID=38057403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07100570A Not-in-force EP1813785B1 (fr) 2006-01-27 2007-01-16 Soupape de réglage de pression

Country Status (3)

Country Link
EP (1) EP1813785B1 (fr)
AT (1) ATE391228T1 (fr)
DE (2) DE202006001287U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223288A1 (de) * 2014-11-14 2016-05-19 Mahle International Gmbh Kurbelgehäuseentlüftungseinrichtung

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008005363U1 (de) * 2008-04-17 2009-09-03 Mann+Hummel Gmbh Kurbelgehäuseentlüftung einer Brennkraftmaschine
DE102008061753A1 (de) * 2008-12-12 2010-06-24 Mann + Hummel Gmbh Druckregelventil
DE102015200341A1 (de) 2015-01-13 2016-07-14 Polytec Plastics Germany Gmbh & Co. Kg Mehrstufige Saugstrahlpumpe
DE102015005692A1 (de) * 2015-05-06 2016-11-10 Mann + Hummel Gmbh Druckregelventil
DE102016217442A1 (de) 2016-09-13 2018-03-15 Mahle International Gmbh Brennkraftmaschine
DE102017202292B4 (de) * 2017-02-14 2018-10-18 Ford Global Technologies, Llc Entlüftungssystem für ein Kurbelgehäuse eines Verbrennungsmotors
DE102023109653B3 (de) 2023-04-18 2024-07-18 Bayerische Motoren Werke Aktiengesellschaft Verbrennungskraftmaschine für ein Kraftfahrzeug sowie Kraftfahrzeug

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080588A (en) * 1932-06-17 1937-05-18 Bendix Prod Corp Crankcase ventilator for internal combustion engines
US3105471A (en) * 1962-06-01 1963-10-01 California Research Corp Purge system for blow-by return valve
CH664798A5 (de) * 1983-11-14 1988-03-31 Bbc Brown Boveri & Cie Vorrichtung zur rueckfuehrung der abblasemenge aus dem kurbelgehaeuse.
DE4022129A1 (de) * 1990-07-11 1992-01-16 Mann & Hummel Filter Druckregelventil fuer den einbau in eine entlueftungsleitung an einer brennkraftmaschine
US5499616A (en) * 1995-05-22 1996-03-19 Dresser Industries, Inc. Crankcase pressure regulation system for an internal combustion engine
SE522391C2 (sv) * 2000-01-26 2004-02-03 Volvo Personvagnar Ab Vevhus- och emissionsventilation i en överladdad förbränningsmotor
DE20103874U1 (de) * 2001-03-07 2002-07-11 Hengst Walter Gmbh & Co Kg Einrichtung für die Be- und Entlüftung des Kurbelgehäuses einer Brennkraftmaschine
EP1367232B1 (fr) * 2002-05-15 2008-02-20 Electro-Motive Diesel, Inc. Dispositif de dégasage d'un moteur diesel ayant un ajutage avec plusieurs orifices
DE10249720A1 (de) * 2002-10-25 2004-05-06 Robert Bosch Gmbh Druckregelventil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223288A1 (de) * 2014-11-14 2016-05-19 Mahle International Gmbh Kurbelgehäuseentlüftungseinrichtung

Also Published As

Publication number Publication date
EP1813785A1 (fr) 2007-08-01
DE202006001287U1 (de) 2007-06-06
ATE391228T1 (de) 2008-04-15
DE502007000004D1 (de) 2008-05-15

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