EP1336741A1 - Drosselklappenstutzen mit Notlaufvorrichtung - Google Patents
Drosselklappenstutzen mit Notlaufvorrichtung Download PDFInfo
- Publication number
- EP1336741A1 EP1336741A1 EP02028354A EP02028354A EP1336741A1 EP 1336741 A1 EP1336741 A1 EP 1336741A1 EP 02028354 A EP02028354 A EP 02028354A EP 02028354 A EP02028354 A EP 02028354A EP 1336741 A1 EP1336741 A1 EP 1336741A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- throttle valve
- emergency stop
- spring
- rocker arm
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- F02D9/08—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
- F02D2009/0277—Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks
Definitions
- the invention relates to a throttle valve assembly for an internal combustion engine, with one on one Throttle valve shaft fixed, between a Open position and a closed position pivotable Throttle valve, with an electromotive actuator, through which an actuator can be driven, with one with the Throttle valve shaft of the throttle valve rotatably connected Actuator that is in the closing direction of the throttle valve a first return spring is applied and in Opening direction of the throttle valve from the actuator is portable, with one the actuator in the closing direction the throttle valve until it touches a fixed one Emergency stop in one defined by the emergency stop Second return spring preloading position one the actuator in the opening direction of the throttle valve until it touches the emergency stop in the emergency position preloading opening spring, the second return spring and the opening spring by one end arm each Bracket spring are formed, which with their two end arms Actuator and the emergency stop clutched together.
- the invention further relates to a Throttle body for an internal combustion engine with a fixed on a throttle valve shaft, between an open position and a closed position pivotable Throttle valve, with an electromotive actuator, through the one with the throttle valve shaft of the throttle valve non-rotatably connected actuator can be driven with a Actuator in the closing direction of the throttle valve up to Attachment to a fixed emergency stop in one of the Pre-tensioning emergency stop position Return spring and the actuator in the opening direction the throttle valve until it touches the emergency stop in opening spring biasing the emergency running position, the Return spring and the opening spring by one each End arm of a spring clip are formed, with their two End arms the actuator and the emergency stop together clutching.
- Actuator is drivable about a pivot axis and has a driving arm, radially next to its radial circumferential swivel path the fixed emergency stop is arranged.
- the spring clip consists of a winding with several spring coils, of which the end arms are approximately extend radially outwards and drive arm and Emergency stop with pre-tension directed towards each other clasp together that one end arm in each Emergency running position on both the driving arm and the Emergency stop should be in the system.
- the Actuator is one or the other end arm by the Driver deflected and lifted from the emergency stop.
- the actuator's inoperable emergency position also does not allow an exactly determinable emergency running position of the Throttle.
- the object of the invention is therefore a To create throttle body of the type mentioned, which is a play-free transition from the idle control range to Operating and speed regulation range guaranteed and is simple and space-saving.
- a low-component, simple construction is achieved if the free end of the end arm of the clamp spring is bent transversely to the direction of action of the actuator and emergency stop and forms a pivot axis on which the rocker arm is pivotably arranged.
- the rocker arm can also have a bore that extends transversely to the direction of actuation of the actuator and emergency stop, into which the bent free end of the end arm of the clamp spring projects.
- the spring clip from a Winding of one or more spring turns consist of which the end arms extend approximately radially outwards.
- the rocker arm with point contact and / or line contact parallel to the swivel axis Actuator and / or emergency stop can be applied.
- the actuator preferably has a driver arm, radially next to its radially rotating swivel path Emergency stop is arranged.
- the actuator can be rotatably drivable by the electromotive actuator via a gearbox, whereby it contributes to a reduction in components if the actuator is provided with a radially rotating toothed ring or toothed ring section into which a gearwheel of the transmission engages. If the actuator can be moved against the force of the opening spring until it touches a minimum idle stop, this determines the closed position of the throttle valve.
- the electromotive actuator only serves to regulate idling.
- the drive and speed are then regulated by manually adjusting the throttle valve.
- the electromotive actuator can also be used to regulate the drive and speed in addition to idling.
- the schematic device shown in Figure 1 for Adjustment of a throttle valve of a throttle body 2 has a fixedly connected to the throttle valve 1 Actuating element 3, which by a first return spring 4 in Closing direction of the throttle valve 1 is applied.
- a Bowden cable 5 engages on a bracket 35.
- the bracket 35 is biased by a third return spring 36 in the closed position of the throttle valve 1.
- the travel of the bracket 35 is limited in the closed position by a minimal idle stop LL min 9 and in the opening direction by a full load stop VL 11.
- the bracket 35 has a driver 37, via which it can take the actuating element 3 in the opening direction of the throttle valve 1, the first return spring 4 moving the actuating element 3 in the closing direction when the bracket 35 is relieved by the third return spring 36 in when the accelerator pedal 6 is released Direction to the minimum idle stop 9 is moved.
- the travel of the control element 3 is limited by the driver 37 by the fixed minimum idle stop 9 and a maximum idle stop LL max .
- the actuating element 3 is activated by the first return spring 4 acted upon by an actuator 7 by a electromotive actuator 8 in the opening direction up to System at the maximum idle stop 10 movably driven is.
- the minimum idle stop 9 defines the closed position the throttle valve 1.
- the electromotive actuator 8 is used only for Idle speed control.
- the drive and speed control is done by pressing the accelerator pedal 6.
- the schematic device shown in FIG. 2 for adjusting a throttle valve 1 of a throttle valve connector 2 has an actuator 7 ′ which is fixedly connected at one end to the throttle valve 1 and at the other end to an electromotive actuator 8 and which is separated from the electromotive actuator 8 by a minimum Idle stop LL min 9 and a full load stop VL 11 is movably drivable and is used both for drive and speed control, control and idle control of an E-gas device.
- the minimum idle stop 9 defines the closed position the throttle valve 1.
- the position of an accelerator pedal 6 is determined by a Position sensor such as a potentiometer detects and Corresponding signals from control and control electronics 12 fed. This then controls the electromotive Actuator 8 with appropriate signals, which then also correspondingly moves the actuator 7 '.
- a Position sensor such as a potentiometer detects and Corresponding signals from control and control electronics 12 fed. This then controls the electromotive Actuator 8 with appropriate signals, which then also correspondingly moves the actuator 7 '.
- a clamp spring 14 clasps with its two end arms 15 and 16 together the actuator 7, 7 'and the emergency stop 13, so that in the emergency running position shown each end arm 15 and 16 both on the emergency stop 13 and on the Actuator 7, 7 'is in contact.
- the forces of the two end arms 15 and 16 are directed towards each other so that the end arm 15 one opening spring and the end arm 16 a second Return spring forms.
- Figure 1 is the sum of the in the closing direction Closing member 7 acting forces of the first return spring 4th and the second return spring formed by the end arm 16 not greater than the force formed by the end arm 15 Opening spring.
- the pivotable drive of the throttle valve shaft 18 protrudes this in a drive housing part 19 of Throttle body 2 and carries about at its end Actuator 7 in the form of a circular disk.
- the actuator 7 is with a radially rotating Gear ring section 20, in which a gear one Gear 21 engages that of the in the drive housing 19th arranged electromotive actuator 8 rotatable can be driven, the drive pinion is designated 22.
- the meshing with the toothed ring section 20 is covered by the gear 23 of the transmission 21.
- the actuator has a driver arm 24, radially adjacent whose radially revolving swivel path is fixed with the Drive housing 19 connected emergency stop 13 arranged is.
- the clamp spring 14 has a helical winding 25 with a plurality of spring windings, the winding 25 being coaxial with the Actuator 7 on a pin-like guide 26 of the Drive housing part 19 is arranged.
- the end arms 15 and 16 of the clamp spring 16 extend approximately radially outwards. The radial extension of the End arm 16 so far that the end arm 16 in the emergency running position both on the driving arm 24 of the actuator 7 and on the emergency stop 13 is securely free of play.
- the free end of the end arm 15 of the spring clip 14 is how can be seen in particular in FIG Direction of application of the end arm 15 bent and forms a pivot axis 28.
- the rocker arm 27 has one also extending transversely to the direction of exposure Bore 29 into which the pivot axis 28 protrudes, so that the rocker arm 27 is freely pivotable thereon.
- With his radially directed area 30 is the end arm 15 in a for Bore 28 radially directed slot 31 pivoted, from which in turn axially a lateral insertion opening 32 leads outside, the opening of the bore 29th covered, radially opposite to the extension of the Area of the end arm 15 leads to the outside and a width has at least the diameter of the end arm 15 equivalent. So that the rocker arm 27 in one opposite its end position swiveled by about 180 ° with its Swivel axis 28 inserted into the bore 29 and through Swivel axially into the end position on the clamp spring 14 be secured.
- the Pivot axis 28 When the clamp spring 14 is installed, the Pivot axis 28 approximately close to the plane between the driver arm 24 and the emergency stop 13 on the side of the Emergency stop 13, so that in the emergency position Contact surface 33 of the rocker arm 27 both on the Emergency stop 13 as well as on the driving arm 24.
- the system is free of play because the rocker arm 27 is free the pivot axis 28 is pivotable and so automatically in one Position swings in which it is both on the driver arm 24 and also abuts the emergency stop 13.
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
Bei Anlage beider Endarme am Mitnehmer befindet sich der Notlaufanschlag in der Notlaufstellung mit Spiel zwischen den Endarmen der Klammerfeder, so dass ebenfalls keine exakt definierte Notlaufstellung des Stellglieds eingenommen werden kann.
Dabei kann in ebenfalls einfacher Ausgestaltung der Kipphebel eine sich quer zur Beaufschlagungsrichtung von Stellglied und Notlaufanschlag erstreckende Bohrung aufweisen, in die das abgebogene freie Ende des Endarms der Klammerfeder hineinragt.
Ist das Stellglied entgegen der Kraft der Öffnungsfeder bis zur Anlage an einem Minimalleerlaufanschlag bewegbar, so erfolgt dadurch die Bestimmung der Schließstellung der Drosselklappe.
Ist aber das Stellglied entgegen den Kräften der ersten und der zweiten Rückstellfeder bis zur Anlage an einem die Öffnungsstellung der Drosselklappe bestimmenden Vollastanschlag bewegbar, so kann durch den elektromotorischen Stellantrieb außer einer Leerlaufregelung auch eine Antriebs- und Geschwindigkeitsregelung erfolgen.
Claims (16)
- Drosselkappenstutzen für einen Verbrennungsmotor mit einer auf einer Drosselklappenwelle fest angeordneten, zwischen einer Öffnungsstellung und einer Schließstellung schwenkbaren Drosselklappe, mit einem elektromotorischen Stellantrieb, durch den ein Stellglied antreibbar ist, mit einem mit der Drosselklappenwelle der Drosselklappe drehfest verbundenen Stellelement, das in Schließrichtung der Drosselklappe von einer ersten Rückstellfeder beaufschlagt ist und in Öffnungsrichtung der Drosselklappe von dem Stellglied mitnehmbar ist, mit einer das Stellglied in Schließrichtung der Drosselklappe bis zur Anlage an einem feststehenden Notlaufanschlag in eine von dem Notlaufanschlag definierte Notlaufstellung vorspannenden zweiten Rückstellfeder und einer das Stellglied in Öffnungsrichtung der Drosselklappe bis zur Anlage an dem Notlaufanschlag in die Notlaufstellung vorspannenden Öffnungsfeder, wobei die zweite Rückstellfeder und die Öffnungsfeder durch jeweils einen Endarm einer Klammerfeder gebildet sind, die mit ihren beiden Endarmen das Stellglied und den Notlaufanschlag gemeinsam umklammert, dadurch gekennzeichnet, dass ein Endarm (15) der Klammerfeder (14) über einen Kipphebel (27) an Stellglied (7) und Notlaufanschlag (13) anlegbar und der Kipphebel (27) um eine sich quer zur Beaufschlagungsrichtung von Stellglied (7) und Notlaufanschlag (13) erstreckende Schwenkachse (28) frei schwenkbar ist.
- Drosselklappenstutzen für einen Verbrennungsmotor mit einer auf einer Drosselklappenwelle fest angeordneten, zwischen einer Öffnungsstellung und einer Schließstellung schwenkbaren Drosselklappe, mit einem elektromotorischen Stellantrieb, durch den ein mit der Drosselklappenwelle der Drosselklappe drehfest verbundenes Stellglied antreibbar ist, mit einer das Stellglied in Schließrichtung der Drosselklappe bis zur Anlage an einem feststehenden Notlaufanschlag in eine von dem Notlaufanschlag definierte Notlaufstellung vorspannenden Rückstellfeder und einer das Stellglied in Öffnungsrichtung der Drosselklappe bis zur Anlage an dem Notlaufanschlag in die Notlaufstellung vorspannenden Öffnungsfeder, wobei die Rückstellfeder und die Öffnungsfeder durch jeweils einen Endarm einer Klammerfeder gebildet sind, die mit ihren beiden Endarmen das stellglied und den Notlaufanschlag gemeinsam umklammert, dadurch gekennzeichnet, dass ein Endarm (15) der Klammerfeder (14) über einen Kipphebel (27) an Stellglied (7') und Notlaufanschlag (13) anlegbar und der Kipphebel (27)um eine sich quer zur Beaufschlagungsrichtung von Stellglied (7') und Notlaufanschlag (13) erstreckende Schwenkachse (28) frei schwenkbar ist.
- Drosselklappenstutzen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das freie Ende des Endarms (15) der Klammerfeder (14) quer zur Beaufschlagungsrichtung von Stellglied (7, 7') und Notlaufanschlag (13) abgebogen ist und eine Schwenkachse (28) bildet, auf der der Kipphebel (27) schwenkbar angeordnet ist.
- Drosselklappenstutzen nach Anspruch 3, dadurch gekennzeichnet, dass der Kipphebel (27) eine sich quer zur Beaufschlagungsrichtung von Stellglied (7, 7') und Notlaufanschlag (13) erstreckende Bohrung (29) aufweist, in die das abgebogene freie Ende des Endarms (15) der Klammerfeder (14) hineinragt.
- Drosselklappenstutzen nach einem der Ansprüche 3 und 4, dadurch gekennzeichnet, dass die Klammerfeder (14) aus einer Wicklung (25) von ein oder mehreren Federwindungen besteht, von der sich die Endarme (15, 16) etwa radial nach außen erstrecken.
- Drosselklappenstutzen nach Anspruch 5, dadurch gekennzeichnet, dass der den Kipphebel (27) tragende Endarm (15) der Klammerfeder (14) mit seinem radial gerichteten Bereich (30) in einem radial gerichteten Schlitz (31) des Kipphebels (27) schwenkbar geführt ist, von dem eine Einführöffnung (32) zum axialen Einführen des Endarms (15) in Bohrung (29) und Schlitz (31) des Kipphebels (27) zur Außenseite des Kipphebels (27) führt.
- Drosselklappenstutzen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kipphebel mit Punktberührung und/oder Linienberührung parallel zur Schwenkachse an Stellglied und/oder Notlaufanschlag anlegbar ist.
- Drosselklappenstutzen nach Anspruch 7, dadurch gekennzeichnet, dass die an Stellglied und Notlaufanschlag anlegbare Fläche des Kipphebels konkav ausgebildet ist.
- Drosselklappenstutzen nach Anspruch 5, dadurch gekennzeichnet, dass das Stellglied (7, 7') von dem Stellantrieb (8) um eine Schwenkachse schwenkbar antreibbar ist.
- Drosselklappenstutzen nach Anspruch 9, dadurch gekennzeichnet, dass die Wicklung (25) der Federwindungen der Klammerfeder (14) koaxial zum Stellglied (7, 7') angeordnet ist.
- Drosselklappenstutzen nach Anspruch 9, dadurch gekennzeichnet, dass das Stellglied (7, 7') einen Mitnehmerarm (24) aufweist, radial neben dessen radial umlaufender Schwenkbahn der Notlaufanschlag (13) angeordnet ist.
- Drosselklappenstutzen nach Anspruch 9. dadurch gekennzeichnet, dass das Stellglied (7, 7') über ein Getriebe (21) von dem elektromotorischen Stellantrieb (8) drehbar antreibbar ist.
- Drosselklappenstutzen nach Anspruch 12,dadurch gekennzeichnet, dass das Stellglied (7, 7') mit einem radial umlaufenden Zahnring oder Zahnringabschnitt (20) versehen ist, in den ein Zahnrad des Getriebes (21) eingreift.
- Drosselklappenstutzen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Stellglied (7, 7') entgegen der Kraft der Öffnungsfeder bis zur Anlage an einem Minimal-Leerlaufanschlag (9) bewegbar ist.
- Drosselklappenstutzen nach Anspruch 14, dadurch gekennzeichnet, dass das Stellglied (7, 7') entgegen den Kräften der ersten und zweiten Rückstellfeder bis zur Anlage an einem Maximal-Leerlaufanschlag (10) bewegbar ist.
- Drosselklappenstutzen nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass das Stellglied (7, 7') entgegen den Kräften der ersten und zweiten Rückstellfeder bis zur Anlage an einem die Öffnungsstellung der Drosselklappe (1) bestimmenden Vollastanschlag (11) bewegbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10202096 | 2002-01-21 | ||
DE10202096A DE10202096A1 (de) | 2002-01-21 | 2002-01-21 | Drosselklappenstutzen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1336741A1 true EP1336741A1 (de) | 2003-08-20 |
EP1336741B1 EP1336741B1 (de) | 2004-10-06 |
Family
ID=7712649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02028354A Expired - Fee Related EP1336741B1 (de) | 2002-01-21 | 2002-12-17 | Drosselklappenstutzen mit Notlaufvorrichtung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1336741B1 (de) |
DE (2) | DE10202096A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007025441B4 (de) | 2007-05-31 | 2020-06-18 | Continental Automotive Gmbh | Lastverstelleinrichtung |
JP5971276B2 (ja) * | 2014-04-25 | 2016-08-17 | 株式会社デンソー | アクチュエータおよびその組付方法 |
IT201800003347A1 (it) | 2018-03-07 | 2019-09-07 | Magneti Marelli Spa | Valvola a farfalla per un motore a combustione interna con la possibilita' di regolare la posizione di limp-home e relativo metodo di regolazione della posizione di limp-home |
DE102019104018A1 (de) | 2019-02-18 | 2020-08-20 | Friedrich Boysen Gmbh & Co. Kg | Klappeneinrichtung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4947815A (en) * | 1986-09-13 | 1990-08-14 | Robert Bosch Gmbh | System for regulated dosing of combustion air into internal combustion engine |
US5492097A (en) * | 1994-09-30 | 1996-02-20 | General Motors Corporation | Throttle body default actuation |
US5996551A (en) * | 1997-08-13 | 1999-12-07 | Pierburg Ag | Spring assembly in an engine air throttle control providing rotational blocking when relaxed |
DE10102775A1 (de) * | 2001-01-23 | 2002-07-25 | Bosch Gmbh Robert | Vorrichtung zur Rückstellung eines Drehglieds |
DE10102776A1 (de) * | 2001-01-23 | 2002-07-25 | Bosch Gmbh Robert | Vorrichtung zur Rückstellung eines Drehglieds |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4015318A1 (de) * | 1990-05-12 | 1991-11-14 | Vdo Schindling | Stellglied zur leerlaufregelung einer brennkraftmaschine |
DE4141104C2 (de) * | 1991-12-13 | 1995-09-07 | Vdo Schindling | Vorrichtung zur Verstellung einer Drosselklappe |
DE19622141A1 (de) * | 1996-06-01 | 1997-12-04 | Mannesmann Vdo Ag | Lastverstellvorrichtung |
DE10013917A1 (de) * | 2000-03-21 | 2001-09-27 | Bosch Gmbh Robert | Vorrichtung zur Rückstellung einer Drosselklappe |
-
2002
- 2002-01-21 DE DE10202096A patent/DE10202096A1/de not_active Withdrawn
- 2002-12-17 DE DE50201210T patent/DE50201210D1/de not_active Expired - Lifetime
- 2002-12-17 EP EP02028354A patent/EP1336741B1/de not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4947815A (en) * | 1986-09-13 | 1990-08-14 | Robert Bosch Gmbh | System for regulated dosing of combustion air into internal combustion engine |
US5492097A (en) * | 1994-09-30 | 1996-02-20 | General Motors Corporation | Throttle body default actuation |
US5996551A (en) * | 1997-08-13 | 1999-12-07 | Pierburg Ag | Spring assembly in an engine air throttle control providing rotational blocking when relaxed |
DE10102775A1 (de) * | 2001-01-23 | 2002-07-25 | Bosch Gmbh Robert | Vorrichtung zur Rückstellung eines Drehglieds |
DE10102776A1 (de) * | 2001-01-23 | 2002-07-25 | Bosch Gmbh Robert | Vorrichtung zur Rückstellung eines Drehglieds |
Also Published As
Publication number | Publication date |
---|---|
DE50201210D1 (de) | 2004-11-11 |
DE10202096A1 (de) | 2003-07-24 |
EP1336741B1 (de) | 2004-10-06 |
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