EP1331380A2 - Stelleinrichtung für eine Drosselklappe - Google Patents
Stelleinrichtung für eine Drosselklappe Download PDFInfo
- Publication number
- EP1331380A2 EP1331380A2 EP02027233A EP02027233A EP1331380A2 EP 1331380 A2 EP1331380 A2 EP 1331380A2 EP 02027233 A EP02027233 A EP 02027233A EP 02027233 A EP02027233 A EP 02027233A EP 1331380 A2 EP1331380 A2 EP 1331380A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- throttle valve
- force
- actuating device
- restoring force
- 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- Withdrawn
Links
Images
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
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0269—Throttle closing springs; Acting of throttle closing springs on the throttle shaft
-
- 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
- F02D2009/0272—Two or more throttles disposed in series
Definitions
- the invention relates to a Actuator for adjusting a throttle valve Internal combustion engine with progressive force / path conversion between Actuator and throttle valve with a return spring.
- Throttle valves are usually adjusted by Internal combustion engines by means of an actuating device against one Restoring force generating spring, with additional system losses, which to be overcome essentially by friction losses are.
- the required actuation force increases with increasing Throttle valve opening angle according to the spring characteristic of Return spring - possibly converted by a Actuating device with kinematics connecting the throttle valve - too.
- Such a moving kinematics between the actuator and throttle valve also requires a force conversion, which causes disadvantageously because of the increasing throttle opening for the operating force the lever becomes less favorable the operating force in addition to the increase in actuation force due to the spring characteristic elevated.
- the task therefore arises of an actuating device mentioned at the beginning which is kinematics between the actuator and the throttle valve for progressive force / path conversion in particular, whereby with increasing throttle opening angle next to the a progressive actuation force increase due to spring characteristics occurs in such a way that cheap, with simple means, and takes up only a small amount of space, good meterability in the lower load lever area with low actuation force in the upper load lever area is reached.
- the actuating device should continue to be have high operational reliability and be flexible in use.
- a throttle valve restoring force a first and a second Spring provided, the forces of which correspond to the parallel connection of the Add springs over the entire throttle opening angle curve, wherein at least part of the increase in actuation force caused by the first spring is compensated by the second spring.
- the first spring advantageously produces in the area of maximum Throttle valve opening one to overcome the system (friction) losses sufficient restoring force, which is significantly less than that required restoring force with a conventional actuating device, at which is the restoring force for a complete closing of the throttle valve must suffice.
- the Restoring force of the second spring with increasing throttle valve opening from, being a maximum in the area of small throttle valve opening angles has and at least in the area of maximum throttle valve opening is almost zero, so that its contribution to the restoring force is decisive in Small throttle opening angle range
- the first spring is a Torsion or spiral spring and the second spring is a tension or compression spring.
- Figure 1 shows an arrangement 10 of the springs 12, 13 when closed Throttle valve, the direction of the arrow indicates a movement in the open direction.
- the throttle valve not shown in this illustration, is non-rotatable on the Shaft 16 is arranged, with which a cam plate 11 is also rotatably fixed connected is.
- the cam plate 11 is in the present case by means of one in one Cable casing 15 guided cable 14 actuated, one axial Rope movement over the effective one at a time Cam radius according to a lever for Cam disc rotation axis 16 a rotational movement of the pulley 11 causes.
- the restoring force for closing the throttle valve is determined by the first Spring 12 and the second spring 13 generated, the forces of which correspond add their parallel connection.
- the first spring 12 is in the Embodiment a torsion spring made of conventional spring steel, in which the Ends of the cylindrical wound spring wire on the circumference of the Diameter are bent as a leg, so that the spring through a Twisting about the spring axis is resilient.
- the second spring 13 is a tension or compression spring, whose point of attack 17 on the pulley 11 is selected so that at fully closed throttle valve a maximum and at fully throttle open - if point 17 is on axis D - no restoring force is generated.
- the exemplary embodiment shown are further Realizations of a progressive kinematics between Actuator and throttle valve under the present Invention possible as well as further arrangements and voting of Springs 12 and 13 in cooperation with differently designed Cam discs 11. This is of particular importance because of Design of the cam plate 11 and the additively formed restoring force on. almost any operating force curve over the Throttle valve opening angle is possible. If necessary, it is in this Contextual, springs with progressive, linear and / or to combine degressive characteristics and / or the point of attack 17 To change the spring 13 so that the force of the spring 13 (see Figure 2, 24) a zero crossing or a certain one via the throttle valve angle Location of a maximum or minimum is reached.
- the actuation of the throttle valve can, as shown, by means of a Cable 14 take place, but it is also appropriate to use a linkage Power transmission or, for example, an electric motor or to provide hydraulic actuator throttle actuation, which is controlled by a controller.
- actuation forces 21, 22, 23, 24 are qualitative over the Throttle valve angle shown in diagram 20, where 0 ° corresponds to one fully closed and 90 ° one fully open Throttle.
- the minimum restoring force (21, 22) at point E at complete closed throttle valve arises from the need for a safe complete closing in the area of small throttle opening angles ensure, so that from a restoring force generation according to the Characteristic curve 21 a correspondingly high actuation force at complete open throttle valve results - a progressive change between Actuator and throttle valve would add this force increase further.
- Another advantage is the redundancy caused by the two springs the force distribution over several springs also allows a special one flexible use of the control device.
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
Description
- Figur 1
- eine Anordnung der Federn bei geschlossener Drosselklappe sowie
- Figur 2
- Betätigungskräfte über den Drosselklappenwinkel im Diagramm.
Claims (9)
- Stelleinrichtung zum Verstellen einer Drosselklappe einer Brennkraftmaschine mit progressiver Kraft-/Wegwandlung zwischen Betätigungseinrichtung und Drosselklappe mit einer ersten Rückstellfeder, gekennzeichnet durch eine Kompensation des Betätigungskraftanstieges.
- Stelleinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zur Erzeugung einer Rückstellkraft eine erste und eine zweite Feder (12, 13) vorgesehen sind.
- Stelleinrichtung nach Anspruch 2, dadurch gekennzeichnet, dass zumindest ein Teil des durch die erste Feder (12) bedingten Betätigungskraftanstieges durch die zweite Feder (13) kompensiert wird.
- Stelleinrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die addierten Rückstellkräfte der ersten und der zweiten Feder (12, 13, 22) im Bereich kleiner Drosselklappenöffnungswinkel ausreichen, ein vollständiges Schließen der Drosselklappe zu bewirken.
- Stelleinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Feder (12) im Bereich maximaler Drosselklappenöffnung eine zur Überwindung der Systemverluste ausreichende Rückstellkraft erzeugt.
- Stelleinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Rückstellkraft der zweiten Feder (13, 24) mit zunehmender Drosselklappenöffnung abnimmt.
- Stelleinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Rückstellkraft der zweiten Feder (13, 24) ein Maximum im Bereich kleiner Drosselklappenöffnungswinkel aufweist.
- Stelleinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Rückstellkraft der zweiten Feder (13, 24) im Bereich maximaler Drosselklappenöffnung zumindest annähernd null ist.
- Stelleinrichtung nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Feder (12) eine Dreh- oder Spiralfeder und die zweite Feder (13) eine Zug- oder Druckfeder ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10203042 | 2002-01-26 | ||
DE2002103042 DE10203042A1 (de) | 2002-01-26 | 2002-01-26 | Stelleinrichtung für eine Drosselklappe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1331380A2 true EP1331380A2 (de) | 2003-07-30 |
EP1331380A3 EP1331380A3 (de) | 2007-05-16 |
Family
ID=7713139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02027233A Withdrawn EP1331380A3 (de) | 2002-01-26 | 2002-12-06 | Stelleinrichtung für eine Drosselklappe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1331380A3 (de) |
DE (1) | DE10203042A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10314074A1 (de) * | 2003-03-28 | 2004-10-14 | Bayerische Motoren Werke Ag | Einrichtung zur Betätigung wenigstens einer Drosselklappe |
DE10315414A1 (de) * | 2003-04-04 | 2004-10-14 | Bayerische Motoren Werke Ag | Einrichtung zur Betätigung wenigstens einer Drosselklappe |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0290980A2 (de) * | 1987-05-09 | 1988-11-17 | Nippondenso Co., Ltd. | Vorrichtung zum Steuern der Einlassluftmenge in einer Brennkraftmaschine |
DE3403760C2 (de) | 1984-02-03 | 1992-10-01 | Vdo Adolf Schindling Ag, 6000 Frankfurt, De |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1123513B (de) * | 1960-07-05 | 1962-02-08 | Walter Hartung Dipl Ing | Drosselklappenanordnung bei Verbrennungskraftmaschinen |
DE3328854A1 (de) * | 1983-08-10 | 1985-02-28 | Robert Bosch Gmbh, 7000 Stuttgart | Rueckstellvorrichtung fuer ein verstellelement |
DE3631283C2 (de) * | 1986-09-13 | 1999-11-25 | Bosch Gmbh Robert | Einrichtung zur gesteuerten Zumessung von Verbrennungsluft in eine Brennkraftmaschine |
FR2639679B1 (fr) * | 1988-11-25 | 1994-02-11 | Solex | Dispositif de commande d'organe d'etranglement pour installation d'alimentation en combustible de moteur a combustion interne |
DE69732202T2 (de) * | 1996-09-03 | 2005-12-15 | Hitachi, Ltd. | Drosselklappen-Betätigungsvorrichtung für eine Brennkraftmaschine |
-
2002
- 2002-01-26 DE DE2002103042 patent/DE10203042A1/de not_active Ceased
- 2002-12-06 EP EP02027233A patent/EP1331380A3/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3403760C2 (de) | 1984-02-03 | 1992-10-01 | Vdo Adolf Schindling Ag, 6000 Frankfurt, De | |
EP0290980A2 (de) * | 1987-05-09 | 1988-11-17 | Nippondenso Co., Ltd. | Vorrichtung zum Steuern der Einlassluftmenge in einer Brennkraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
DE10203042A1 (de) | 2003-07-31 |
EP1331380A3 (de) | 2007-05-16 |
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Effective date: 20141129 |