EP2216519A2 - Soupape de réglage de pression - Google Patents

Soupape de réglage de pression Download PDF

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Publication number
EP2216519A2
EP2216519A2 EP09176266A EP09176266A EP2216519A2 EP 2216519 A2 EP2216519 A2 EP 2216519A2 EP 09176266 A EP09176266 A EP 09176266A EP 09176266 A EP09176266 A EP 09176266A EP 2216519 A2 EP2216519 A2 EP 2216519A2
Authority
EP
European Patent Office
Prior art keywords
valve
membrane
pressure control
housing
control valve
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.)
Withdrawn
Application number
EP09176266A
Other languages
German (de)
English (en)
Other versions
EP2216519A3 (fr
Inventor
Thomas Schleiden
Matthias Alex
Jürgen TILG
Herbert Schenk
Matthias Teschner
Stefan Maier
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 EP2216519A2 publication Critical patent/EP2216519A2/fr
Publication of EP2216519A3 publication Critical patent/EP2216519A3/fr
Withdrawn legal-status Critical Current

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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
    • F01M13/0011—Breather valves
    • 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

  • the invention relates to a pressure regulating valve for the venting of an internal combustion engine according to the preamble of patent claim 1.
  • Such pressure control valves are used for example in the vent line between the crankcase and intake pipe or air filter.
  • the aim is not to increase the pressure or negative pressure in the containers to be vented beyond a predetermined value.
  • valve which consists of two part valves, which are both arranged on a single membrane. Disadvantages of this type of valve are that, in the case of certain switching states, high noise emissions occur, which can occur, in particular, in the region between the valve opening and the membrane.
  • the invention has for its object, starting from the known prior art to provide a pressure control valve, which causes lower noise emissions.
  • the pressure control valve comprises a valve housing, which is composed of a particular pot-shaped housing lower part and a housing cover.
  • the housing has an inflow nozzle which opens into the housing lower part and an outlet opening out of the housing lower part Outlet nozzle, whose centrally arranged inside the valve housing end portion is formed as a valve seat.
  • the pressure regulating valve further comprises a clamped diaphragm valve body sealed at its edge in a groove between the housing cover and the housing lower part, which divides the valve housing into a valve chamber and via a ventilation chamber, wherein the ventilation chamber can be connected to the atmosphere via a ventilation duct.
  • the membrane has a valve seat facing the valve seat at the end of the valve.
  • the pressure control valve further comprises a compression spring, which is supported on the bottom of the housing base and exerts a force on the membrane in the direction of the housing cover.
  • the pressure regulating valve further comprises an intermediate valve arranged between the valve plate of the membrane and the first valve seat on the housing lower part.
  • the intermediate valve has a second valve seat which faces the membrane and cooperates with the valve plate of the membrane
  • the intermediate valve has a valve plate, which faces the valve seat of the housing lower part and cooperates therewith, wherein the intermediate valve is arranged on the membrane such that an axial relative movement between the membrane and the intermediate valve is possible.
  • valve plate of the membrane is associated with the valve seat of the housing base and operatively associated therewith.
  • the intermediate valve has a device for flow diversion, which can be detachably or non-detachably connected to the valve plate. Due to the flow deflection, the noise emissions can be positively influenced.
  • the means for flow deflection is designed as a conical or truncated cone-like elevation, which is applied to the membrane in the middle of the valve plate z. B. can be glued or molded.
  • the device for flow diversion is formed by a plurality of elevations distributed on the valve plate. These can be formed as part of the membrane or insoluble on this, z. B. be attached by an adhesive connection.
  • the device for flow diversion is formed by an annular insert which surrounds the spring of the intermediate valve over a part of its length in the part adjoining the membrane or is surrounded by the latter.
  • the device for flow deflection is pressed by the spring against the membrane.
  • the means for flow deflection is formed as part of the membrane or insoluble on this, z. B. fastened by an adhesive or welded connection.
  • the means for flow diversion is formed by the spring of the intermediate valve itself, wherein the spring stands on a part of its length in the part adjacent to the membrane on block, d. H. that in this area the turns are directly adjacent to each other. As a result, only a small volume flow can pass between the turns in this area.
  • blow-by ie blow-by gas
  • the requirement is made that during operation in the crankcase always a slight negative pressure prevail, so that no oily blow-by, for example, pass through the vent line to the outside and can pollute the environment.
  • a pressure control valve which is intended for installation in the vent line between the intake manifold and the crankcase of an internal combustion engine, exists according to FIG. 1 from a valve housing 11, which has an inflow nozzle 10.
  • This inflow port is provided at its outer end with a torus 28, so that a hose or the like can be connected.
  • the inflow port is guided coaxially with the valve housing 11 in the same and includes within the valve housing 11 with a valve seat 17 from.
  • the valve housing 11 is open at the top and contains at its upper opening an annular groove 15. On this opening of the valve housing 11, a housing cover 13 is attached, wherein between the housing cover 13 and valve housing 11, a membrane 14 is inserted.
  • the membrane surface of this membrane is thickened in its middle part and has in this area a valve plate-shaped surface 22, which faces the valve housing.
  • the membrane has a means for flow deflection 27 in the middle of the valve plate-shaped surface 22 on, which is designed in this embodiment as a truncated cone-like elevation, which z. B. can be glued or molded.
  • a first valve chamber 29 is formed, which communicates via a vent hole 16 with the atmospheric external pressure.
  • the valve housing 11 also has an outlet connection 12. Also, this drain pipe 12 is provided with a torus 30 for connecting a hose.
  • a hollow cylindrical part 26 is applied in the central region of the membrane 14. This can be connected both detachably (eg by a clamping connection) and inseparably (for example by an adhesive connection) to the membrane.
  • a compression spring 25 At an annular collar of the hollow cylindrical portion 26 is a compression spring 25 at.
  • This compression spring 25 is supported at its opposite end to the valve housing. By the compression spring, the membrane is moved to an upper end position. In this end position, the membrane rests against the housing cover 13 in the region of its thickening 31.
  • an intermediate valve 18 is provided with a valve plate 19 and with a valve seat 21.
  • the intermediate valve 18 has a valve opening 20 with a certain diameter which is smaller than the diameter of the valve seat 17.
  • the intermediate valve 18 is held by a compression spring 24 at rest in the position shown.
  • a compression spring 24 is held by a compression spring 24 at rest in the position shown.
  • two differently acting valves formed, namely a valve consisting of valve plate 19 and valve seat 17 and a valve with valve plate 22 and valve seat 21st
  • the hollow cylindrical part 26 is provided with openings 23.
  • the function of the breakthroughs is based on the FIG. 2 explained in more detail.
  • FIG. 2 is that in FIG. 1 described pressure control valve again shown.
  • the pressure control valve is now in an intermediate position. This position is reached when a certain threshold value of the Saugrohrunter horres has been established and wherein this limit is above the maximum allowable in the crankcase vacuum.
  • the negative pressure applied to the discharge nozzle 12 which can reach, for example, up to 800 mbar, depending on the operating state of the internal combustion engine, acts on the membrane 14 via the valve opening 20.
  • the blow-by gases now flow through the openings 23 through the valve opening 20 according to FIG arrows.
  • the diaphragm 14 will again lift off from the valve seat 21 of the intermediate valve 18 and thus first the smaller opening and a further drop in Saugrohrunter horrs, for example by opening the Main throttle, which reduces negative pressure in the intake manifold of the internal combustion engine, so that eventually the larger opening, ie the valve between the valve seat 17 and the valve plate 19 is opened.
  • FIG. 4 shows a section of a further embodiment of the valve.
  • the device for flow deflection 27 is formed by an annular insert, which is surrounded on a part of the length of the spring 25 in the adjoining the membrane part of this spring 25.
  • the Device for flow deflection 27 is pressed by the spring 25 against the membrane 14.
  • FIG. 5 shows a section of a further embodiment of the valve.
  • the means for flow deflection 27 is formed by the spring 25 itself, is part of its length in the adjoining the membrane 14 part on block, whereby only a small volume flow between the turns can pass in this area.
  • FIG. 6 shows a section of a further embodiment of the valve.
  • the means for flow deflection 27 is formed by an annular insert, which the spring 25 on a part of its length in the adjoining the membrane 14 part.
  • the device for flow deflection 27 on the membrane is insoluble, z. B. attached by an adhesive connection.
  • FIG. 7 shows a section of a further embodiment of the valve.
  • the device for flow deflection 27 is formed by a plurality of distributed on the valve plate 22 surveys. These are formed here as part of the membrane 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP09176266A 2008-12-12 2009-11-18 Soupape de réglage de pression Withdrawn EP2216519A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810061753 DE102008061753A1 (de) 2008-12-12 2008-12-12 Druckregelventil

Publications (2)

Publication Number Publication Date
EP2216519A2 true EP2216519A2 (fr) 2010-08-11
EP2216519A3 EP2216519A3 (fr) 2011-05-04

Family

ID=42041525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09176266A Withdrawn EP2216519A3 (fr) 2008-12-12 2009-11-18 Soupape de réglage de pression

Country Status (2)

Country Link
EP (1) EP2216519A3 (fr)
DE (1) DE102008061753A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104632319A (zh) * 2014-12-11 2015-05-20 中国北方发动机研究所(天津) 一种新型曲轴箱废气压力控制阀
US10787942B2 (en) 2017-10-20 2020-09-29 Mann+Hummel Gmbh Valve component for regulating or controlling a fluid pressure
WO2022009750A1 (fr) * 2020-07-07 2022-01-13 ヤマシンフィルタ株式会社 Dispositif de soupape et dispositif de filtre

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013019885B4 (de) 2013-11-28 2021-02-04 Mann+Hummel Gmbh Druckregelventil
CN104153844A (zh) * 2014-08-28 2014-11-19 河南柴油机重工有限责任公司 外置曲轴箱压力调节装置及调节方法
DE102015016023A1 (de) 2015-12-11 2017-06-14 Fresenius Medical Care Deutschland Gmbh Sperr- und/oder Drosselventil und Blutbehandlungsgerät umfassend ein derartiges Ventil
CN105840271B (zh) * 2016-06-08 2018-06-12 汉格斯特滤清系统(昆山)有限公司 用于油气分离器的压力调节阀和油气分离器
CN115788618B (zh) * 2022-11-29 2024-04-23 重庆长安汽车股份有限公司 一种内置式pcv阀安装结构、内燃机及车辆

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022129A1 (de) 1990-07-11 1992-01-16 Mann & Hummel Filter Druckregelventil fuer den einbau in eine entlueftungsleitung an einer brennkraftmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416119B4 (de) * 1994-05-06 2006-02-09 Mahle Filtersysteme Gmbh Kurbelgehäuseentlüftungsventil
JPH11200832A (ja) * 1998-01-12 1999-07-27 Iseki & Co Ltd エンジンのブローバイガス還元装置
DE10236783B4 (de) * 2002-08-10 2008-12-24 Mann + Hummel Gmbh Druckregelventil
KR100667406B1 (ko) * 2005-10-06 2007-01-10 현대자동차주식회사 곡선형 니플이 일체로 형성된 크랭크케이스 압력 조절밸브구조
DE202006001287U1 (de) * 2006-01-27 2007-06-06 Mann+Hummel Gmbh Druckregelventil
DE102006059008A1 (de) * 2006-12-14 2008-06-19 Robert Bosch Gmbh Druckregelventil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022129A1 (de) 1990-07-11 1992-01-16 Mann & Hummel Filter Druckregelventil fuer den einbau in eine entlueftungsleitung an einer brennkraftmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104632319A (zh) * 2014-12-11 2015-05-20 中国北方发动机研究所(天津) 一种新型曲轴箱废气压力控制阀
US10787942B2 (en) 2017-10-20 2020-09-29 Mann+Hummel Gmbh Valve component for regulating or controlling a fluid pressure
WO2022009750A1 (fr) * 2020-07-07 2022-01-13 ヤマシンフィルタ株式会社 Dispositif de soupape et dispositif de filtre

Also Published As

Publication number Publication date
DE102008061753A1 (de) 2010-06-24
EP2216519A3 (fr) 2011-05-04

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