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DE2950866A1 - IC engine throttle disc - has two parts on concentric shafts with common rotational axis and independent control - Google Patents

IC engine throttle disc - has two parts on concentric shafts with common rotational axis and independent control

Info

Publication number
DE2950866A1
DE2950866A1 DE19792950866 DE2950866A DE2950866A1 DE 2950866 A1 DE2950866 A1 DE 2950866A1 DE 19792950866 DE19792950866 DE 19792950866 DE 2950866 A DE2950866 A DE 2950866A DE 2950866 A1 DE2950866 A1 DE 2950866A1
Authority
DE
Germany
Prior art keywords
throttle valve
shaft
partial
parts
lever
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Withdrawn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
DE19792950866
Other languages
German (de)
Inventor
Uwe 7056 Weinstadt Rohrberg
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19792950866 priority Critical patent/DE2950866A1/en
Publication of DE2950866A1 publication Critical patent/DE2950866A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • F02D9/102—Details of the flap the flap having movable parts fixed onto it
    • 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
    • F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
    • F02M19/12—External control gear, e.g. having dash-pots

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

The throttle valve (2,3) is rotatably arranged in the intake duct (1) of a combustion engine. It consists of two parts (2,3) whose parting line coincides with the rotational axis and which are independently controllable. One part (2) may be fixed (6) on a shaft (4) whilst the other (3) is secured (7) on a hollow shaft (5) which surrounds the shaft and has a cut-out portion for passage of the part. One part may commence its opening when the other is already partly opened, the control being such that both parts simultaneously reach their fully open positions, e.g. via levers (8,9) coupled by a cam disc.

Description

Drosselklappe im .Mnsaugkanal einerThrottle valve in .Mnsaugkanal one

Brennkraftmaschine Die Erfindung bezieht sich auf eine Drosselklappe gemäß dem Oberbegriff des Anspruchs 1.Internal combustion engine The invention relates to a throttle valve according to the preamble of claim 1.

Bei derartigen bekannten Drosselklappen bedeuten, insUesondere wenn sie sehr groß sind, bereits geringe Änderungen des Öffnungswinkels eine große Änderung des der Luft zur Verfügung stehenden Durchtrittquerschnitts , Die Regelung der Brennkraftrnaschine ist somit ungenau, ihr Ansprechverhalten läßt sich nicht genau abstimmen.In the case of such known throttle valves, in particular if they are very large, even small changes in the opening angle make a big change of the passage cross-section available for the air, The regulation of the internal combustion engine is therefore imprecise and its response behavior cannot be precisely adjusted.

Um diese Nachteile zu vermeiden, ist es weiter bekarmt, zwei kleine Drosselklappen iii parallel zueinander liegende Kanälen anzuordnen. Diese Bauweise ist jedoch sehr aufwendig und erfordert einen hohen Platzbedarf.In order to avoid these disadvantages, it is also known to have two small ones To arrange throttle valves iii parallel channels. This construction however, it is very complex and requires a large amount of space.

Der Erfindung liegt die Aufgabe zugrunde, die Drosselklappe so zu gestalten, daß die Regelung und das Ansprechverhalten der Brennkraftmaschine mit geringem zusätzlichen Aufwand verbessert und verfeinert werden.The invention is based on the task of adjusting the throttle valve in such a way shape that the control and the response of the internal combustion engine with can be improved and refined with little additional effort.

Die Aufgabe ist erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst.The object is according to the invention by the characterizing part of the claim 1 specified features solved.

Bei der erfindungsgemäß ausgebildeten Drosselklappe wird bei einer Bewegung einer Teilklappe um einen bestimmten Betrag der Durchflußquerschnitt der angesaugten Luft um einen geringeren Betrag geändert, als wenn eine ungeteilte Drosselklappe die gleiche Bewegung ausführen würde. Der Durchflußquerschnitt und damit die Last der Brennlcraftmaschine lassen sich also genauer durch die Stellungen der Drosselklappe bestimmen. Die Regelung und das Ansprechverhalten der Brennkraftmaschine sind feiner abzustimmen.In the case of the throttle valve designed according to the invention, a Movement of a partial flap by a certain amount of the flow area of the intake air changed by a smaller amount than if an undivided throttle valve would perform the same movement. The flow cross-section and thus the load the Brennlcraftmaschine can be more precisely through the positions of the throttle valve determine. The regulation and the response behavior of the internal combustion engine are finer to vote.

Die irn Anspruch 2 angegebenen Merkmale ermöglichen eine einwandfreie und voneinander unabhängige Lagerung der Teilklappeii, ohiie daß wesentliche Änderungen am Ansaugkanal gegenüber der bekannten Ausführung mit ungeteilter Drosselklappe no twendig sind.The features specified in claim 2 enable a perfect and independent storage of the Teilklappeii, without significant changes on the intake duct compared to the known version with an undivided throttle valve are no necessary.

Die Drosselklappe gemäß dem Anspruch 3 ermöglicht im unteren @@stbereich der Brennkraftmaschine, in dem meist gros-@@ und schnelle Dastrechsel unerwünsch sind, geringe @ast-@nderungen trotz verhältnismäßig großen Bewegungen der Teilklappe, ohne daß eine yollständige Öffnung des Ansaugkanals für die Vollast verhindert wird.The throttle valve according to claim 3 allows in the lower @@ st range the internal combustion engine, in which mostly gros - @@ and fast Dastrechsel undesirable are, small @ ast @ changes despite relatively large movements of the partial flap, without preventing a complete opening of the intake duct for full load.

Die Ansprüche 4 und 5 zeigen vorteilhafte Möglichkeiten, wie die beiden Teilklappen durch ein einziges Organ betätigt werden können und dabei die gewünschten Bewegungen ausführen.Claims 4 and 5 show advantageous options, such as the two Partial flaps can be operated by a single organ and thereby the desired Perform movements.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles dargestellt. Dabei zeigen Fig. @ einen Ansaugkanal im Querschnitt mit eiller crtindungsgemäßen Drossolklappe, Fig. 2 einen Schnitt gemäU der Linie II - II in der Fig. 1 in größerem Maßstab und Fig. 3 einen Be tätigung.smechanismus für die Drosselklappe.The invention is illustrated below with reference to one in the drawing Embodiment shown. Show it Fig. @ An intake duct in cross section with a throttle valve according to the invention, FIG. 2 shows a section according to the line II - II in FIG. 1 on a larger scale and FIG. 3 a loading mechanism for the throttle.

In dem Ansaugkanal 1 ist die Drosselklappe in Schließstellung dargestellt. Sie besteht aus zwei Teilklappen 2 und 3 mit deren Drehachse als Trennlinie. Diese wird durch eine Welle '+ und eine diese umschließende Hohlwelle 5 gebildet, dit zusammen unabhängig voneinander drehbar im Ansaugkanal 1 gela gert sind. Dio eine Teilklappe 2 ist im mittleren Bereich des Ansaugkanals 1, in dem die Hohlwelle 5 aufgeschnitten ist, in die Welle 4 eingeschoben und mittels Schrauben 6 an ihr befestigt. Die andere Teilklappe 3 ist in den anschliessenden Bereichen bis zur Innenwand des Ansaugkanals 1 an der Hohlwelle 5 mittels Schrauben 7 befestigt, wobei die Teilklappe 3 für eine leichtere Befestigung und eine bessere Abdichtung teilweise um die Hohlwelle S herumgezogen ist. Geringfü gige Undichtheiten zwischen den Teilklappen 2 und 3 sowie der Welle 4 und der Hohlwelle 5 sind Jedoch unerheblich, do auch in Schließstellung der Drosselklappe ein bestimmter Luftdurchsatz durch den Ansaugkanal 1 notwendig ist.In the intake duct 1, the throttle valve is shown in the closed position. It consists of two partial flaps 2 and 3 with their axis of rotation as a dividing line. These is formed by a shaft '+ and a hollow shaft 5 surrounding this, dit are rotatable together independently in the intake duct 1 gela Gert. Dio one Partial flap 2 is in the central area of the intake duct 1, in which the hollow shaft 5 is cut open, pushed into the shaft 4 and fastened to it by means of screws 6. The other partial flap 3 is in the subsequent areas up to the inner wall of the Intake channel 1 attached to the hollow shaft 5 by means of screws 7, the partial flap 3 for easier fastening and better sealing partially around the hollow shaft S moved around. Minor leaks between the partial flaps 2 and 3 as well as the shaft 4 and the hollow shaft 5 are, however, irrelevant, even in the closed position the throttle valve, a certain air throughput through the intake duct 1 is necessary is.

Die Hohlwelle 5 und damit die Teilklappe 3 werden durch einen außen an ihr befestigten Hebel 8 gedreht, entspr chend die Welle 4 und die Teilklappe 2 durch einen Hebel 9.The hollow shaft 5 and thus the partial flap 3 are through an outside rotated on her lever 8, accordingly the shaft 4 and the partial flap 2 by a lever 9.

Der Hebel 8 wird über ein Gestänge 10 unmittelbar von einern nicht dargestellten Betätigungsorgan, beispielsweise einem Gaspedal, betätigt. Zur Betätigung des Hebels Q ist dieser mit einer Kurvenscheibe 11 verbunden, und zwar greift eine auf dem Hebel 9 befestigte Rolle 12 In ein Langloch 3 iii der Kurvenscheibe 11 ein, die auf einer Achse 14 drehbar gelagert ist. Um die Kurvenscheibe 11 und damit den Hebel 9 zu drehen, greift der Hebel 8 mit einer Rolle 15 in einen Kurvenschlitz 16 in der Kurv-nscheibe 11 ein, und zwar nur dann, wenn die durch den Hebel 8 betätigte Teilklappe 3 sich zwischen den halb geöffneten und voll geöffneten Stellungen befindet. Der Kurvenschlitz 16 ist so ausgebildet, daß bei einer Bewegung des Hebels 8 und der Teilklappe 3 zwischen den genannten Stellungen der Hebel 9 und die damit verbundene. Teilklappe 2 Bewegungen zwischen der Schließstellung und der voll geöffneten Stellung ausführen, und zwar umso rascher, je weiter die Teilklappe 3 sich öffnet, bis beide Teilklappen 2 und 3 gleichzeitig die völlig geöffnete Stellung erreichen.The lever 8 is via a linkage 10 directly from one not actuator shown, such as an accelerator pedal operated. For actuation of the lever Q, this is connected to a cam 11, namely one engages on the lever 9 fixed roller 12 in an elongated hole 3 iii the cam 11, which is rotatably mounted on a shaft 14. To the cam 11 and so that the lever 9 to rotate, the lever 8 engages with a roller 15 in a cam slot 16 in the cam disk 11, and only when it is actuated by the lever 8 Partial flap 3 is located between the half-open and fully-open positions. The cam slot 16 is formed so that when the lever 8 and the partial flap 3 between the said positions of the lever 9 and the associated. Partial flap 2 movements between the closed position and the fully open position execute, the faster the further the partial flap 3 opens until both Partial flaps 2 and 3 reach the fully open position at the same time.

L e e r s e i t eL e r s e i t e

Claims (4)

Ansprüche 1. Im Ansaugkanal einer Brennkraftmaschine drehbar gelagerte, willkürlich betätigbare Drosselklappe, d a d u r c h g e k e n n z e i c h n e t , daß die Drosselklappe mit der Drehachse als Trennlinie zweigeteilt ist und daß die beiden Teilklappen (2, 3) unabhängig voneinander bewegbar sind. Claims 1. rotatably mounted in the intake duct of an internal combustion engine, Arbitrarily actuatable throttle valve, which is not shown that the throttle valve is divided into two parts with the axis of rotation as the dividing line and that the two partial flaps (2, 3) can be moved independently of one another. 2. Drosselklappe nach Anspruch 1, d a d u r c h g e -k e n n z e i c h n e t , daß die eine Teilklappe (2) auf einer Welle (4) und die zweite Teilklappe (3) auf einer die Welle (4) umschließenden, teilweise aufgeschnittenen Hohlwelle (5) befestigt sind. 2. Throttle valve according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that one partial flap (2) on a shaft (4) and the second partial flap (3) on a partially cut hollow shaft surrounding the shaft (4) (5) are attached. 3. Drosselklappe nach Anspruch 1 oder 2, d a d u r c h g e k en n z e i c h n e t , daß die eine Teilklappe (2) zu öffnen beginnt, wenn die andere Teilklappe (3) bereits teilweise geöffnet ist und daß beide Teilklappen (2, 3) die Offenstellung gleichzeitig erreichen. 3. Throttle valve according to claim 1 or 2, d a d u r c h g e k en n z e i c h n e t that one partial flap (2) begins to open when the other Partial flap (3) is already partially open and that both partial flaps (2, 3) the Reach open position at the same time. 4. Drosselklappe nach Anspruch 2 oder 3, d a d u r c h g e k e n n z e i c h n e t , daß die Welle (4) und die Hohlwelle (j) über Hebel (8, 9) betätigt werden, die über eine Kurvenscheibe (11) miteinander verbindbar sind.4. Throttle valve according to claim 2 or 3, d a d u r c h g e k e n n z e i c h n e t that the shaft (4) and the hollow shaft (j) are actuated via levers (8, 9) which can be connected to one another via a cam (11). Drosselklappe nach Anspruch 4, d a d u r c h g e -k e n n z e i c h n e t , daß der eine Hebel (8) unmittelbar, der andere Hebel (9) über die Kurvenscheibe (11) betätigt werden, wobei der erste Hebel (8) die Kurvenscheibe (11) nur oberhalb eines bestimmten Öffnungswinkels -der zugehörigm Teilklappe (3) bewegt.Throttle valve according to claim 4, d a d u r c h g e -k e n n z e i c h n e t that one lever (8) directly, the other lever (9) via the cam (11) are actuated, the first lever (8) only above the cam (11) a certain opening angle - the associated partial flap (3) is moved.
DE19792950866 1979-12-18 1979-12-18 IC engine throttle disc - has two parts on concentric shafts with common rotational axis and independent control Withdrawn DE2950866A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792950866 DE2950866A1 (en) 1979-12-18 1979-12-18 IC engine throttle disc - has two parts on concentric shafts with common rotational axis and independent control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792950866 DE2950866A1 (en) 1979-12-18 1979-12-18 IC engine throttle disc - has two parts on concentric shafts with common rotational axis and independent control

Publications (1)

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DE2950866A1 true DE2950866A1 (en) 1981-06-25

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DE19792950866 Withdrawn DE2950866A1 (en) 1979-12-18 1979-12-18 IC engine throttle disc - has two parts on concentric shafts with common rotational axis and independent control

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050707A1 (en) * 1980-10-24 1982-05-05 VDO Adolf Schindling AG Speed control and idling adjustment device for vehicles with positive-ignited internal-combustion engines
DE3712927A1 (en) * 1987-04-16 1988-11-03 Audi Ag Arrangement of throttle valves in the intake pipe of an internal combustion engine
US4836163A (en) * 1986-12-22 1989-06-06 Vdo Adolf Schindling Ag Throttle-butterfly connector piece for an internal combustion engine
DE3942055A1 (en) * 1989-12-20 1991-06-27 Audi Ag IC engine throttle butterfly - is in two valves turning in opposite directions and split in plane intersecting pivot axis
US5560335A (en) * 1993-10-02 1996-10-01 Vdo Adolf Schindling Ag Device for controlling the power of an internal combustion engine
EP0874145A1 (en) * 1997-04-25 1998-10-28 SOLVAY (Société Anonyme) Throttling device
US6234208B1 (en) 1998-04-10 2001-05-22 Solvay (Societe Anonyme) Shut-off device
EP1628005A1 (en) * 2004-08-18 2006-02-22 HONDA MOTOR CO., Ltd. Carburetor electronic control system
EP1712762A2 (en) * 2003-11-12 2006-10-18 Komatsu Zenoah Co. Transmissible connecting mechanism

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050707A1 (en) * 1980-10-24 1982-05-05 VDO Adolf Schindling AG Speed control and idling adjustment device for vehicles with positive-ignited internal-combustion engines
US4836163A (en) * 1986-12-22 1989-06-06 Vdo Adolf Schindling Ag Throttle-butterfly connector piece for an internal combustion engine
DE3712927A1 (en) * 1987-04-16 1988-11-03 Audi Ag Arrangement of throttle valves in the intake pipe of an internal combustion engine
DE3942055A1 (en) * 1989-12-20 1991-06-27 Audi Ag IC engine throttle butterfly - is in two valves turning in opposite directions and split in plane intersecting pivot axis
US5560335A (en) * 1993-10-02 1996-10-01 Vdo Adolf Schindling Ag Device for controlling the power of an internal combustion engine
BE1011130A3 (en) * 1997-04-25 1999-05-04 Solvay Shutter device.
EP0874145A1 (en) * 1997-04-25 1998-10-28 SOLVAY (Société Anonyme) Throttling device
US6003554A (en) * 1997-04-25 1999-12-21 Solvay Shut-off device
US6234208B1 (en) 1998-04-10 2001-05-22 Solvay (Societe Anonyme) Shut-off device
EP1712762A2 (en) * 2003-11-12 2006-10-18 Komatsu Zenoah Co. Transmissible connecting mechanism
EP1712762A4 (en) * 2003-11-12 2011-06-22 Husqvarna Zenoah Co Ltd CONDUCTION AND COUPLING MECHANISM
EP1628005A1 (en) * 2004-08-18 2006-02-22 HONDA MOTOR CO., Ltd. Carburetor electronic control system
US7156376B2 (en) 2004-08-18 2007-01-02 Honda Motor Co. Ltd. Carburetor electronic control system

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