WO2018206687A1 - Soupape dotée d'un clapet d'étranglement disposé dans un raccord de clapet d'étranglement - Google Patents

Soupape dotée d'un clapet d'étranglement disposé dans un raccord de clapet d'étranglement Download PDF

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Publication number
WO2018206687A1
WO2018206687A1 PCT/EP2018/062086 EP2018062086W WO2018206687A1 WO 2018206687 A1 WO2018206687 A1 WO 2018206687A1 EP 2018062086 W EP2018062086 W EP 2018062086W WO 2018206687 A1 WO2018206687 A1 WO 2018206687A1
Authority
WO
WIPO (PCT)
Prior art keywords
throttle flap
valve
permanent magnet
connector
magnetic
Prior art date
Application number
PCT/EP2018/062086
Other languages
English (en)
Inventor
Eusebio-Marius Albert
Vlad Aronet
Original Assignee
Continental Automotive 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 Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2018206687A1 publication Critical patent/WO2018206687A1/fr

Links

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
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/107—Safety-related aspects
    • 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0298—Throttle control device with holding devices, i.e. to hold throttle in a predetermined position

Definitions

  • the invention relates to a valve for regulating a flow cross section in a throttle flap connector, having a throttle flap which is mounted in the throttle flap connector so as to be rotatable about an axis of rotation, wherein the throttle flap is rotatable about the axis of rotation, by means of an actuator which acts on the throttle flap, counter to a force generated by a mechanical spring .
  • Throttle flaps are used for example in the intake tract of internal combustion engines for the purposes of regulating the air quantity to be supplied to the combustion chamber. Through the use of a throttle flap, it is possible in particular for the supplied air quantity to be adapted to the supplied fuel quantity, and/or for an air-fuel mixture suitable for the respective load state of the internal combustion engine to be generated. Throttle flaps in throttle flap connectors are known.
  • DE 195 12 729 Al describes a throttle flap connector with a tubular housing in which a throttle flap is fastened to a throttle flap shaft which, at its free ends led through recesses in the housing wall, is mounted so as to be rotatable transversely with respect to the longitudinal axis of the tubular housing.
  • Throttle flaps can be rotated in their throttle flap connector by means of an actuator, such as for example an electric motor. As a result of the rotation of the throttle flap relative to the throttle flap connector, the flow cross section of the throttle flap connector can be increased and decreased in size.
  • throttle flaps are designed so as to be held open by a mechanical spring when not acted on by the actuator.
  • the actuator is used to close the throttle flap, through the application of a force, counter to the spring force acting on said throttle flap.
  • a disadvantage of devices in the prior art is in particular that the closed position of the throttle flap can be maintained only if the actuator remains energized and thus exerts on the throttle flap a force which counteracts the force imparted by the me ⁇ chanical spring.
  • the problem addressed by the present invention is that of creating a throttle flap arranged in a throttle flap connector, which throttle flap can be held in a defined position even in the presence of a reduced action of the actuator or in the absence of action of the actuator.
  • An exemplary embodiment of the invention relates to a valve for regulating a flow cross section in a throttle flap connector, having a throttle flap which is mounted in the throttle flap connector so as to be rotatable about an axis of rotation, wherein the throttle flap is rotatable about the axis of rotation, by means of an actuator which acts on the throttle flap, counter to a force generated by a mechanical spring, wherein the throttle flap, in at least a first position, is fixable in said first position by means of a magnet device, wherein the magnet device is formed by a permanent magnet and a magnetic counterpart, wherein the permanent magnet is arranged in the housing of the throttle flap connector and the magnetic counterpart is arranged on an element which is rotatable with the throttle flap.
  • the valve is formed by a tubular throttle flap connector in which a throttle flap is rotatably mounted.
  • the cross section, through which flow can pass, of the throttle flap connector can be increased or decreased in size.
  • the throttle flap completely respectively closes the flow cross section of the throttle flap connector or opens up the flow cross section of the throttle flap connector by being rotated so as to be oriented parallel to the main throughflow direction.
  • the throttle flap is acted on by a mechanical spring with a force which rotates the throttle flap either toward the open position or toward the closed position.
  • an actuator for example an electric motor, is provided, which can exert on the throttle flap a force directed counter to the mechanical spring.
  • the throttle flap can be either open or closed by means of the mechanical spring, wherein the actuator acts in each case in the opposite direction.
  • a magnet device is provided.
  • Said first position is particularly preferably characterized by the fully closed position of the throttle flap or by the fully open position.
  • a permanent magnet is particularly advantageously arranged on the throttle flap connector, which permanent magnet magnetically interacts with a magnetic counterpart which is mounted on the throttle flap itself.
  • the permanent magnet is surrounded by means for directing the magnetic field, which means increase the magnetic force of the permanent magnet in at least one direction.
  • Said means are advantageous for directing and focusing the magnetic field generated by the respective permanent magnet, in order to thereby achieve the same action with a smaller permanent magnet or to transmit the magnetic force over a greater distance .
  • the means for directing the magnetic field are formed by metal plates which are arranged between the permanent magnet and the housing of the throttle flap connector.
  • Metal plates can, if produced from a magnetic metal, be utilized for directing and focusing the field lines originating from the permanent magnet. This is based on the magnetic characteristics of the metal.
  • the means for directing the magnetic field are formed by steel elements.
  • Steel is par ⁇ ticularly advantageous because it can be procured cheaply in an extremely wide range of variants and is furthermore easy to machine. In this way, the magnetic field can be influenced in a particularly simple manner.
  • a preferred exemplary embodiment is characterized in that the magnetic counterpart is movable on a circular path formed around the axis of rotation, wherein the spacing between the permanent magnet and the magnetic counterpart in a circumferential di ⁇ rection along the circular path is defined by the angle of rotation of the throttle flap.
  • the arrangement of the permanent magnet and of the magnetic counterpart on a common circular path is advantageous for ensuring that the two elements can be moved toward one another or away from one another in a defined manner as a result of the rotation of the throttle flap.
  • the circular path advantageously runs around the axis of rotation of the throttle flap.
  • the housing of the throttle flap connector has a cutout which is open at least on one side and into which the permanent magnet and the means for directing the magnetic field are inserted.
  • An arrangement of the permanent magnet on the housing of the throttle flap connector is ad ⁇ vantageous because the permanent magnet is thus positionally fixed and is in particular not adversely affected by the inertia of the throttle flap.
  • side of the cutout which is open on one side is at least partially covered, in at least one position of the throttle flap, by the magnetic counterpart.
  • the cutout is advantageously located such that the opening through which the permanent magnet is inserted can be partially or entirely covered by the magnetic counterpart. This is necessary in order to impart the best possible action on the magnetic counterpart, because the magnetic field lines can propagate unhindered through the opening.
  • the magnetic counterpart is part of the toothed ring by means of which the movement of the actuator can be transmitted to the throttle flap.
  • the toothed ring that is generally used for transmitting the movement of the actuator to the throttle flap moves in the same direction as, and in a manner directly dependent on, the throttle flap.
  • the throttle flap is rotatable between two maximum positions, wherein, in the first maximum position, the throttle flap closes the flow cross section of the throttle flap connector, and in the second maximum position, the throttle flap opens up the flow cross section of the throttle flap connector .
  • the throttle flap in the first position in which it is fixable by means of the magnet device, completely closes the flow cross section of the throttle flap connector.
  • the throttle flap is constructed such that the mechanical spring opens the throttle flap and the actuator closes the throttle flap.
  • the throttle flap can be fixed in the closed position even when the actuator exerts no force, or only a reduced force, on the throttle flap.
  • the force generated by the magnet device for holding the throttle flap in the first position is at least equal to or greater than the force generated by the mechanical spring. This applies in particular if the magnetic device exerts a force which is directed counter to the force of the mechanical spring.
  • figure 1 shows a perspective view of the cutout into which the permanent magnet is inserted and the magnetic counterpart on the throttle flap, wherein the per ⁇ manent magnet is encompassed by means for directing the magnetic field.
  • Figure 1 shows a detail view of the housing 1 of the throttle flap connector and of the toothed ring 2, which transmits the movement of the actuator (not shown) to the throttle flap (likewise not shown) .
  • the housing 1 has a cutout 3 which forms a receptacle for the permanent magnet 4.
  • a magnetic counterpart 5 On the toothed ring 2, at the end region facing toward the cutout 3, there is arranged a magnetic counterpart 5 which can be moved toward the permanent magnet as a result of the rotation of the throttle flap about the axis of rotation.
  • the magnetic counterpart 5 is in particular manufactured from a magnetic material on which the magnetic force of the permanent magnet 4 can act when said magnetic counterpart enters the area of action of the magnetic field.
  • the permanent magnet 4 is encompassed laterally by plates 6 which serve for directing and focusing the magnetic field.
  • the magnetic field of the permanent magnet 4 can be directed so as to be oriented in the direction of the magnetic counterpart 5. This has the effect that the magnetic field extends over a greater distance than in the case of a permanent magnet without the plates. It is thus possible for the magnetic counterpart 5 to enter the area of action of the permanent magnets 4 at an earlier point in time, whereby the action is intensified.
  • the magnetic counterpart 5 can be attracted, whereby the throttle flap connected to the magnetic counterpart 5 by means of the toothed ring 3 is also attracted, or is rotated further about its axis of rotation.
  • the permanent magnet 4 or the cutout 3 thus act as a stop for the throttle flap.
  • an end position for the throttle flap may for example completely close the flow cross section, completely open up said flow cross section, or assume a defined intermediate position .
  • figure 1 is in particular not of a restrictive nature, and serves for illustrating the concept of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

Soupape destinée à réguler une section transversale d'écoulement dans un raccord de clapet d'étranglement, comprenant un clapet d'étranglement qui est monté dans le raccord de clapet d'étranglement de manière à pouvoir tourner autour d'un axe de rotation, le clapet d'étranglement pouvant tourner autour de l'axe de rotation, au moyen d'un actionneur qui agit sur le clapet d'étranglement, à l'encontre d'une force générée par un ressort mécanique, le clapet d'étranglement, dans au moins une première position, pouvant être fixé dans ladite première position au moyen d'un dispositif magnétique (4), le dispositif magnétique (4, 5) étant formé par un aimant permanent (4) et une contrepartie magnétique (5), l'aimant permanent (4) étant agencé dans le boîtier (1) du raccord de clapet d'étranglement et la contrepartie magnétique (5) étant disposée sur un élément (2) qui peut tourner avec le clapet d'étranglement.
PCT/EP2018/062086 2017-05-10 2018-05-09 Soupape dotée d'un clapet d'étranglement disposé dans un raccord de clapet d'étranglement WO2018206687A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17465521.7A EP3401534B1 (fr) 2017-05-10 2017-05-10 Soupape comprenant un clapet d'étranglement disposé dans un connecteur de clapet d'étranglement
EP17465521.7 2017-05-10

Publications (1)

Publication Number Publication Date
WO2018206687A1 true WO2018206687A1 (fr) 2018-11-15

Family

ID=58779055

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/062086 WO2018206687A1 (fr) 2017-05-10 2018-05-09 Soupape dotée d'un clapet d'étranglement disposé dans un raccord de clapet d'étranglement

Country Status (2)

Country Link
EP (1) EP3401534B1 (fr)
WO (1) WO2018206687A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3633248A1 (fr) * 2018-10-02 2020-04-08 Continental Automotive GmbH Soupape de commande de gaz d'échappement ou d'air frais dans une unité d'entraînement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232274A (en) * 1989-06-01 1990-12-05 Pei Qui Mao Valve
US5092296A (en) * 1989-08-22 1992-03-03 Robert Bosch Gmbh Apparatus with a throttle device determining the output of a prime mover
DE19512729A1 (de) 1995-04-05 1996-10-10 Vdo Schindling Drosselklappenstutzen
JPH10160027A (ja) * 1996-11-26 1998-06-16 Nissan Motor Co Ltd 磁気ばね装置
DE10143835A1 (de) * 2001-09-07 2003-03-27 Pierburg Gmbh Ventilverstelleinrichtung
US6779775B2 (en) * 2002-07-31 2004-08-24 Ab Elektronik Gmbh Air flap system with a magnetic positioning spring

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232274A (en) * 1989-06-01 1990-12-05 Pei Qui Mao Valve
US5092296A (en) * 1989-08-22 1992-03-03 Robert Bosch Gmbh Apparatus with a throttle device determining the output of a prime mover
DE19512729A1 (de) 1995-04-05 1996-10-10 Vdo Schindling Drosselklappenstutzen
JPH10160027A (ja) * 1996-11-26 1998-06-16 Nissan Motor Co Ltd 磁気ばね装置
DE10143835A1 (de) * 2001-09-07 2003-03-27 Pierburg Gmbh Ventilverstelleinrichtung
US6779775B2 (en) * 2002-07-31 2004-08-24 Ab Elektronik Gmbh Air flap system with a magnetic positioning spring

Also Published As

Publication number Publication date
EP3401534B1 (fr) 2020-07-08
EP3401534A1 (fr) 2018-11-14

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