WO2012080141A1 - Soupape pourvue d'un clapet régulant un flux de gaz - Google Patents

Soupape pourvue d'un clapet régulant un flux de gaz Download PDF

Info

Publication number
WO2012080141A1
WO2012080141A1 PCT/EP2011/072374 EP2011072374W WO2012080141A1 WO 2012080141 A1 WO2012080141 A1 WO 2012080141A1 EP 2011072374 W EP2011072374 W EP 2011072374W WO 2012080141 A1 WO2012080141 A1 WO 2012080141A1
Authority
WO
WIPO (PCT)
Prior art keywords
flap
shaft
valve
diameter
center
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.)
Ceased
Application number
PCT/EP2011/072374
Other languages
German (de)
English (en)
Inventor
Rosario Bonanno
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.)
Aumovio Germany GmbH
Original Assignee
Continental Automotive Technologies 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 Continental Automotive Technologies GmbH filed Critical Continental Automotive Technologies GmbH
Publication of WO2012080141A1 publication Critical patent/WO2012080141A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222—Shaping of the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1005—Details of the flap
    • F02D9/1025—Details of the flap the rotation axis of the flap being off-set from the flap center axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves

Definitions

  • the invention relates to a valve with a flap controlling a gas stream, comprising a housing with a channel for the gas flow, a flap arranged in the channel, the flap being arranged on a shaft in such a way, that the shaft is mounted perpendicular to the longitudinal axis of the housing passage in the overall, so the flap centrally penetrates that the flap is disposed at an angle to the shaft and that the valve between two end positions ⁇ by rotation of the shaft is movable.
  • Such valves with flaps have long been known
  • the invention has for its object to provide a valve which generates as little turbulence when flowing through a gas stream.
  • the object is achieved in that the flap is integrally formed with the shaft and that the shaft has a reduced diameter in the center of the flap. With reduction of the diameter of the shaft, on the one hand, the flow resistance of the flap is reduced. On the other ver ⁇ Ringert by the smaller flow cross-sectional areas that contribute belungen essentially degree to the formation of confusion. These areas are particularly diejeni ⁇ gen areas that are seen in the flow direction of the shaft. With the avoidance of turbulence pressure losses are reduced downstream of the valve and it is a much more homogeneous flow pattern of the gas stream he testifies ⁇ . Due to the one-piece design of the flap and the shaft, both components can be produced in one step, preferably by means of casting. Another advantage is that the flap is made of less material, so it is lighter and less expensive. Due to the lower weight, the electric motor for actuating the flap can also be made smaller, which saves both costs and installation space.
  • the diameter of the shaft decreases continuously in the direction of the center of the flap.
  • the area in which the diameter of the shaft changes can in this case be straight, concave or convex originallybil ⁇ det.
  • the diameter of the shaft in the direction of the center of the flap is reduced discontinuously in the form of a shoulder or in steps.
  • the area in which the diameter of the shaft decreases can correspond in its length to the radius of the flap.
  • This embodiment is characterized by a small reduction of the diameter.
  • the length of this area is shorter than the radius of the flap. This has the consequence that in the region of the center of the flap and / or in the region of the radially outer edge of the diameter of the shaft is constant.
  • a particularly low resistance to flow with low pressure losses is achieved with a valve, wherein the reduced diameter of the shaft of the thickness of the flap speaks ⁇ ent.
  • Fig. 1 shows a section through a valve according to the prior
  • Fig. 2 shows a flap according to the invention of a valve
  • Fig. 3, 4 further imple mentation forms of the flap.
  • a valve is shown in longitudinal section. It is be ⁇ of a housing 1 with a duct 5, in which a gas stream is guided ⁇ .
  • a valve seat 2 for a flap 3 is arranged in the channel 5, a valve seat 2 for a flap 3 is arranged in the channel 5, a valve seat 2 for a flap 3 is arranged in the channel 5, a valve seat 2 for a flap 3 is arranged in the channel 5, a valve seat 2 for a flap 3 is arranged.
  • the flap 3 is connected to a shaft 4 such that it releases the channel upon rotation of the shaft 4, or closes.
  • the shaft 4 is mounted on both sides of the flap 3 in the housing 1, wherein the shaft 4 is connected on one side with an electric motor, not shown, for driving the shaft 4.
  • the valve shown is a gas recirculation valve in a motor vehicle.
  • FIG. 2 shows the flap 3 from the viewpoint of the gas stream in geöff ⁇ Neten state.
  • the flap 3 is penetrated by the shaft 4, wherein the flap 3 and shaft 4 form a single component.
  • the diameter of the shaft 4 is reduced, while at the radially outer edge of the shaft 4 has its nominal diameter.
  • the reduction of the diameter of the shaft 4 from the radially outer edge in the direction of the center of the flap 3 takes place in each case in a region 6 which is arranged on both sides 7, 8 of the flap 3. In this region 6, the reduction follows a concave course and thus continuously.
  • the length of area 6 is shorter than the radius of the flap 3, so that the shaft 4 in the region of the center of the flap 3 has a portion in which the reduced diameter is constant.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne une soupape munie d'un clapet (3) régulant un flux de gaz, laquelle est constituée d'un carter (1) comprenant un canal (5) pour le flux de gaz, d'un clapet (3) disposé dans le canal (5), le clapet (3) étant disposé sur un arbre (4) de manière que ce dernier (4) soit monté perpendiculairement à l'axe longitudinal du canal (5) dans le carter (1), traverse le clapet (3) au centre de manière que ce dernier (3) soit disposé à un angle par rapport à l'arbre (4) et qu'il (3) puisse être déplacé entre deux positions terminales par rotation de l'arbre (4). Le clapet (3) est formé d'un seul tenant avec l'arbre (4) et ce dernier (4) présente un diamètre amoindri au centre du clapet (3).
PCT/EP2011/072374 2010-12-17 2011-12-09 Soupape pourvue d'un clapet régulant un flux de gaz Ceased WO2012080141A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010054880.4 2010-12-17
DE102010054880 2010-12-17

Publications (1)

Publication Number Publication Date
WO2012080141A1 true WO2012080141A1 (fr) 2012-06-21

Family

ID=45349498

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/072374 Ceased WO2012080141A1 (fr) 2010-12-17 2011-12-09 Soupape pourvue d'un clapet régulant un flux de gaz

Country Status (1)

Country Link
WO (1) WO2012080141A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059897A (en) * 1960-09-14 1962-10-23 Raymond W Jensen Butterfly valve
DE102005027684A1 (de) * 2005-06-15 2006-12-21 Siemens Ag Toleranzring für eine Drosselklappe
DE102007050899A1 (de) * 2007-10-24 2009-04-30 Continental Automotive Gmbh Ventil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059897A (en) * 1960-09-14 1962-10-23 Raymond W Jensen Butterfly valve
DE102005027684A1 (de) * 2005-06-15 2006-12-21 Siemens Ag Toleranzring für eine Drosselklappe
DE102007050899A1 (de) * 2007-10-24 2009-04-30 Continental Automotive Gmbh Ventil

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