EP1213456A2 - Dispositif de commande d'écoulement - Google Patents

Dispositif de commande d'écoulement Download PDF

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Publication number
EP1213456A2
EP1213456A2 EP01128514A EP01128514A EP1213456A2 EP 1213456 A2 EP1213456 A2 EP 1213456A2 EP 01128514 A EP01128514 A EP 01128514A EP 01128514 A EP01128514 A EP 01128514A EP 1213456 A2 EP1213456 A2 EP 1213456A2
Authority
EP
European Patent Office
Prior art keywords
channel
control unit
flap
flow
joining
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Withdrawn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
EP01128514A
Other languages
German (de)
English (en)
Other versions
EP1213456A3 (fr
Inventor
Klaus Kahlmann
Ralf Sterl
Ulrich Reinders
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1213456A2 publication Critical patent/EP1213456A2/fr
Publication of EP1213456A3 publication Critical patent/EP1213456A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • 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
    • F02D9/104—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing
    • 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
    • F02D9/107—Manufacturing or mounting details

Definitions

  • the invention is based on a flow control unit according to the Genus of claim 1.
  • a flow channel passes through a duct housing passes through.
  • a valve shaft is pivotally mounted in a duct wall of the duct housing.
  • the valve shaft is attached to a valve so that it cannot rotate.
  • the duct housing has a channel wall that surrounds the flow channel.
  • the Flow control unit is preferably used to control the one Combustion air supplied to the internal combustion engine is used.
  • the Flow control unit can also be used, for example, to control the Exhaust gas from an internal combustion engine can be used.
  • the flow control unit according to the invention with the characteristic Features of claim 1 has the advantage that with a very narrow gap between the flap and the channel wall no jamming of the flap in the duct wall during the Installation of the flap in the flow channel must be feared.
  • Another advantage is that because of the joining channel in the assembled Condition a much narrower gap between the flap and the Channel wall can be made as it is without the joining channel it is possible. Because of the joining channel, the flap can be decisive Millimeter fractions can be made larger. This will turn on advantageous and simple way that the flap the Flow channel can close very tightly.
  • Another advantage is that during the installation of the flap in the flow channel no damage to the flap and no damage must be feared on the channel wall. Damage the channel wall in the closed position of the The flap would lead to increased leakage. A Such damage will occur in the proposed flow control unit avoided in a simple way.
  • the channel housing also a relatively soft material, e.g. plastic, to be used without fear of undue damage Need to become.
  • Flaps are often used in a flow control unit, which have an elliptical shape when viewed from above. With the One wants to achieve elliptical shape that already with an adjustment the flap is closed by less than 90 ° the flow channel becomes. If an elliptical flap is used, then do it the joining channel is particularly noticeable, because you get the advantage that the flap can be installed much easier can because the elliptical flap during its installation advantageously less precise with respect to the flow channel must be aligned.
  • the width of the joining channel is smaller than the diameter of the Storage opening, then this has the particular advantage that the joining channel no deterioration of the seal between the Flap and the duct housing.
  • FIG. 1 is an oblique view of a first embodiment
  • FIG. 2 shows a longitudinal section through the first exemplary embodiment
  • 3 shows a plan view of the first embodiment
  • Figure 4 shows a longitudinal section through a modified embodiment
  • FIG. 5 shows a modified detail of the Embodiments.
  • the flow control unit designed according to the invention is used for Controlling a medium flowing through a flow channel.
  • the Flow control unit is used in particular to control a power an internal combustion engine.
  • the medium is usually air or an air-gas mixture.
  • FIG. 1 shows an oblique view
  • FIG. 2 shows a longitudinal section
  • FIG. 3 shows a top view.
  • the longitudinal section shown in FIG. 2 is marked II-II in FIG.
  • the viewing direction for the view shown in FIG. 3 is marked III in FIG.
  • individual areas of the flow control unit have been broken away in FIG.
  • the example shown in Figures 1, 2 and 3 selected Flow control unit 2 comprises a channel housing 4 and one Actuator 6.
  • a flow channel runs through the channel housing 4 8.
  • a channel wall 10 of the channel housing 4 encloses the Flow channel 8.
  • the channel wall 10 could also be used as a wall surface describe.
  • the bearing opening 12 breaks through the channel wall 10 and opens into the flow channel 8.
  • the second too Bearing opening 12 ' is provided in the channel housing 4.
  • the second bearing opening 12 ' breaks through the channel wall 10 and opens into the flow channel 8.
  • a flap shaft 16 is pivotally mounted.
  • valve shaft 16 There is a slot 18 in the valve shaft 16.
  • a valve 20 is rotationally fixed to the valve shaft with the aid of fastening means 22 16 connected.
  • the actuator 6 serves to close the flap 20 between one Open position in which the cross section of the flow channel 8 for a medium flowing through is opened as completely as possible, and a closed position in which the cross section of the flow channel 8 is closed as completely as possible.
  • the channel housing 4 has a channel opening 24 and a second channel opening 26.
  • the flow channel 8 opens out at the channel opening 24 the duct housing 4.
  • the flow duct occurs opposite 8 from the channel housing 4 at the second channel opening 26.
  • the bearing opening 12 is, for example, a plain bearing pivotable bearings of the valve shaft 16 are provided.
  • Plain bearings can also have a rolling bearing in the bearing opening 12, for example, a ball bearing or a roller bearing is provided his.
  • the bearing of the valve shaft 16 in the second bearing opening 12 ' is preferably constructed in the same way as the storage of the Valve shaft 16 in the bearing opening 12.
  • the bearing opening 12 For receiving the flap shaft 16, the bearing opening 12 has where this opens into the flow channel 8 on the channel wall 10, a diameter d.
  • the flap shaft 16 is dimensioned so that the valve shaft 16 the diameter d of the bearing opening 12 as well as completely filled, so that in the area of the bearing opening 12 in the closed position of the flap 20 if possible no undesirable Medium can flow through the flow channel 8.
  • the joining channel 30 On the channel wall 10 surrounding the flow channel 8 is a Joining channel 30 is provided.
  • the joining channel 30 essentially has one crescent-shaped cross section. Transversely to the longitudinal direction of the Considered flow channel 8, the joining channel 30 has a width b. Relative to the flow channel 8, the joining channel 30 is radial Towards a depth t. The width b of the joining channel 30 is smaller than the diameter d filled by the valve shaft 16 Bearing opening 12.
  • the joining channel 30 extends between the Bearing opening 12 and the channel opening 24.
  • the joining channel 30 runs essentially parallel to the longitudinal direction of the flow channel 8.
  • the joining channel 30 is on that side of the flow control unit 2 provided from which the flap 20 during assembly is introduced into the flow channel 8.
  • the joining channel 30 ends preferably where the joining channel 30 into the bearing opening 12 opens. A further provision of the joining channel 30 via the bearing opening 12 is not necessary.
  • the joining channel 30 has a left joining channel edge 30a and a right joining channel edge 30b.
  • the distance between the joining channel edges 30a, 30b corresponds to the width b.
  • the joining channel 30 should be attached so that both Joining channel edges 30a, 30b cut from the bearing opening 12 so that the valve shaft 16 the end of the joining channel 30th can completely cover. It is convenient to the middle of the joining channel 30 so that the center of the joining channel 30 in essentially intersects with the central axis of the bearing opening 12.
  • FIG. 4 shows a second, preferably selected, particularly advantageous exemplary embodiment. A longitudinal section through the flow control unit 2 is shown.
  • Diameter of the flow channel 8 in the area of the fully assembled Flap 20 is smaller than in the area of the channel opening 24 from which the flap 20 is installed in the flow channel 8. Because the Cross section of the flow channel 8 in the area of the channel opening 24 is significantly larger than in the area of the fully assembled flap 20, it is sufficient if the joining channel 30, starting from the bearing opening 12, just a little bit towards the channel opening 24 extends until the cross-sectional area of the Flow channel 8 is so large that the flap 20 during the Assembling the flow control unit 2 without the To clamp channel wall 10, inserted into the flow channel 8 can be.
  • the flap 20 It is common to build the flow control unit 2 so that the Flap 20 in the closed position is not completely perpendicular to the longitudinal axis of the flow channel 8. So that with this version Flap 20 even with a circular cross section of the Flow channel 8 the flow channel 8 as completely as possible closes, the flap 20 usually has an elliptical shape. Because of the depth t of the joining channel 30, it does not play either circular flap 20 does not matter if the flap 20 during the Installation process compared to the flow channel 8 is not perfect is aligned. This significantly simplifies the installation process.
  • Figure 5 shows a modified embodiment.
  • the figure 5 shows the modified exemplary embodiment with the same viewing direction like FIG. 3.
  • the flow control unit 2 in which the Flap shaft 16 only on one side of the flow channel 8 in the Channel wall 10 is pivotally mounted. In this version there is only one storage opening 12. Like the ones shown However, embodiments show, designs are also common, in which the valve shaft 16 on both sides in the channel wall 10 is stored. In such an embodiment, the flow control unit 2 in addition to the bearing opening 12, the second bearing opening 12 '.
  • the second bearing opening 12 ' is usually the same executed and designed the same as the warehouse opening 12. It will proposed one in the area of the second bearing opening 12 ' provide second joining channel 30 '. It is also proposed that to dimension and design the second joining channel 30 'in the same way like the joining channel 30.
  • the flow control unit 2 is preferably used to control the one Combustion air supplied to the internal combustion engine is used.
  • the internal combustion engine is, for example, a spark-ignited Otto engine.
  • the flow control unit 2 can also be used as well Control of the exhaust air or the exhaust gas of an internal combustion engine be used.
  • the flow control unit 2 for controlling that of the internal combustion engine supplied combustion air is used, then that Channel housing 4 often referred to as throttle body Flow channel 8 is often referred to as suction channel, and the flap 20 is usually called a throttle valve in this application.
  • the flap 20 is commonly referred to as an exhaust flap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Exhaust Silencers (AREA)
  • Air Supply (AREA)
  • Air-Flow Control Members (AREA)
EP01128514A 2000-12-05 2001-11-29 Dispositif de commande d'écoulement Withdrawn EP1213456A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10060291 2000-12-05
DE2000160291 DE10060291A1 (de) 2000-12-05 2000-12-05 Strömungstelleinheit

Publications (2)

Publication Number Publication Date
EP1213456A2 true EP1213456A2 (fr) 2002-06-12
EP1213456A3 EP1213456A3 (fr) 2003-05-14

Family

ID=7665783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128514A Withdrawn EP1213456A3 (fr) 2000-12-05 2001-11-29 Dispositif de commande d'écoulement

Country Status (3)

Country Link
EP (1) EP1213456A3 (fr)
JP (1) JP2002235562A (fr)
DE (1) DE10060291A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008054372A1 (de) 2008-12-08 2010-06-10 Robert Bosch Gmbh Klappenventil
EP4230857A1 (fr) * 2022-02-22 2023-08-23 Mikuni Corporation Dispositif d'étranglement et ensemble d'admission

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10341396B3 (de) 2003-09-05 2004-12-16 Pierburg Gmbh Klappenstellvorrichtung
JP2005177203A (ja) 2003-12-22 2005-07-07 Ge Medical Systems Global Technology Co Llc 複数位置のｃｔ画像生成方法およびｘ線ｃｔ装置
JP4091008B2 (ja) 2004-03-09 2008-05-28 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｃｔ画像生成方法およびｘ線ｃｔ装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2784472B2 (ja) * 1990-09-27 1998-08-06 フジオーゼックス株式会社 バタフライ式排気バルブ
DE9113727U1 (de) * 1991-11-05 1992-01-02 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg Scharnier
JP3078734B2 (ja) * 1995-11-02 2000-08-21 日本碍子株式会社 高温流体用バタフライ弁
JP3629366B2 (ja) * 1998-06-12 2005-03-16 愛三工業株式会社 バタフライバルブ装置とそのバタフライバルブの組付方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008054372A1 (de) 2008-12-08 2010-06-10 Robert Bosch Gmbh Klappenventil
EP4230857A1 (fr) * 2022-02-22 2023-08-23 Mikuni Corporation Dispositif d'étranglement et ensemble d'admission

Also Published As

Publication number Publication date
EP1213456A3 (fr) 2003-05-14
JP2002235562A (ja) 2002-08-23
DE10060291A1 (de) 2002-06-06

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