EP1633966A1 - Stellantrieb zur reversiblen bewegung einer ventilklappe eines ventils - Google Patents
Stellantrieb zur reversiblen bewegung einer ventilklappe eines ventilsInfo
- Publication number
- EP1633966A1 EP1633966A1 EP04734845A EP04734845A EP1633966A1 EP 1633966 A1 EP1633966 A1 EP 1633966A1 EP 04734845 A EP04734845 A EP 04734845A EP 04734845 A EP04734845 A EP 04734845A EP 1633966 A1 EP1633966 A1 EP 1633966A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segment
- valve
- rotation
- axis
- drive shaft
- 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
Classifications
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/55—Systems for actuating EGR valves using vacuum actuators
- F02M26/58—Constructional details of the actuator; Mounting thereof
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
- F02M26/54—Rotary actuators, e.g. step motors
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/50—Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/1987—Rotary bodies
- Y10T74/19893—Sectional
Definitions
- the invention relates to an actuator for the reversible movement of a valve flap of a valve and to a use of the actuator.
- Actuators for the reversible movement of valve flaps are known.
- the valve flap is attached to a drive shaft, which is connected to an electric motor via a constant transmission ratio.
- it is disadvantageous that the valve flaps are relatively difficult to set in motion after longer operating times due to contamination in the valve. Due to the contamination, the valve flaps stick or bake in the valve and can only be released from the jammed state with a relatively large torque, which is often not possible or only with a delay due to the constant transmission ratio.
- the invention is therefore based on the object of providing an actuator for the reversible movement of a valve flap of a valve, which allows the valve flap to be released relatively easily, even when heavily contaminated
- the invention has for its object to provide a use of the valve.
- the object underlying the invention is achieved by an actuator for the reversible movement of a valve flap of a valve, which consists of a drive shaft to which the valve flap is fastened, in which a toothed segment is rotatably mounted about the first axis of rotation Dl of the drive shaft, the toothed segment not tight with the drive shaft
- a further segment which is larger than the toothed segment, is arranged and is firmly connected to the drive shaft, in which between the toothed segment and the further segment, a two-sided lever about a second axis of rotation D2 of a bolt, which is parallel to the first axis of rotation Dl is arranged on the side of the further segment facing the toothed segment, is rotatably mounted and does not touch the drive shaft, the first axis of rotation Dl being at a greater distance from the ring gear of the toothed segment than the second axis of rotation D2 and that of the first axis of rotation Dl in the closed position of the valve facing first lever arm a of the two-sided lever is greater than the distance c between the second axis of rotation D2 and that edge of the further segment which, in the closed position of the valve, lies flush with an edge of the toothed segment against a first stop, where the tooth segment is a recess ung and at the end of the tooth segment
- the valve flap is usually attached to the end of the drive shaft.
- the actuator is driven by an electric motor that rotates the toothed segment.
- the further segment is designed in the form of a partial circle, its partial circle being larger than the partial circle of the toothed segment.
- the further segment can, for example, also be designed as a tooth segment.
- the two-sided lever is advantageously made of flat material. It is rotatable on the bolt, which is arranged parallel to the first axis of rotation D1 on the side of the second segment facing the tooth segment,
- the two-sided lever does not touch the drive shaft. This applies to all positions during the operation of the actuator.
- the open position of the valve is defined by the fact that both the toothed segment and the further segment abut the second stop, with direct contact being able to take place via the third stop, which is fixedly arranged on the further segment.
- the third stop is arranged, for example, on the further segment on its side facing the tooth segment.
- a preferred embodiment of the invention consists in that the side of the two-sided lever facing the first axis of rotation D1 is formed by two partial arms arranged at right angles to one another. It is advantageous
- an eccentric arrangement of the bolt with respect to the two-sided lever can be dispensed with.
- the toothed ring of the toothed segment engages directly in the pinion of an electric motor. It is advantageous that the arrangement of further transmission elements, such as intermediate wheels, can be dispensed with.
- the further segment is connected to a spring element, the spring force of which is aligned with the further segment in the direction of the first stop.
- the spring element can be, for example
- Act leg spring The further segment can be connected directly or indirectly to the spring element via a connecting part. It is advantageous that even if the electric motor fails, the force of the spring element can be used to actuate the actuator such that the
- Valve flap is brought back into the closed position of the valve.
- the invention relates to the use of the actuator for the reversible movement of a valve flap of a gas recirculation valve of a motor vehicle.
- the actuator for the reversible movement of a valve flap of a gas recirculation valve of a motor vehicle.
- the valve flap of a gas recirculation valve can be moved easily even with relatively heavy contamination by the actuator.
- Fig. 1 shows the top view of the actuator in the closed position of the valve.
- Fig. 2 shows the top view of the actuator in a position between the closed and the open position of the valve.
- Fig. 3 shows the top view of the actuator in the open position of the valve.
- Fig. 4 shows the top view of the actuator in the closed position of the valve with an alternative
- Fig. 5 shows the side view of the actuator in the closed position of the valve.
- Fig. 6 shows an actuator according to the prior art.
- Fig. 1 the actuator is shown in the form of a top view in the closed position of the valve.
- the actuator consists of a drive shaft 1 to which the valve flap (not shown) is attached.
- a toothed segment 2 is rotatably supported about the first axis of rotation Dl of the drive shaft 1, the toothed segment 2 not being firmly connected to the drive shaft 1.
- a further segment 3, which is larger than tooth segment 2, is arranged parallel to tooth segment 2. In contrast to the toothed segment 2, this further segment 3 is firmly connected to the drive shaft 1.
- This two-sided lever 4 does not touch the drive shaft 1.
- the first axis of rotation Dl is at a greater distance from the ring gear of the toothed segment 2 than the second axis of rotation D2.
- the tooth segment 2 has a cutout 2a.
- a projection 4a is arranged on the two-sided lever 4, which is guided in a recess 2a which has the toothed segment 2.
- the further segment 3 has a third stop 7 for the second tooth segment at its edge facing a second stop 6, which is to be assigned to the open position of the valve.
- the first lever arm a of the two-sided lever 4 facing the first axis of rotation 1 D1 is larger than the distance c shown in FIG. 1 between the second axis of rotation D2 and that edge of the further segment 3 which, in the closed position of the valve, is flush with one edge the tooth segment 2
- a projection 4a is arranged on the two-sided lever 4, which is guided in the recess 2a. While the toothed segment 2 is moving clockwise, the two-sided lever presses against the first stop 5 due to its first lever arm a. As a result, the further segment 3 is also moved in the direction of the second stop 6 in a clockwise direction. If the rotational movement of the toothed segment 2 is continued, the toothed segment 2 reaches the third stop 7.
- both the toothed segment 2 and the further segment 3 in the direction of the second stop 6 each become moves at the same speed.
- the start-up state of the actuator is completed and the valve flap (not shown) has already been released from the dirt.
- Fig. 3 the top view of the actuator is shown in the open position of the valve.
- Both the toothed segment 2 and the further segment have now reached the second stop 6, which is to be assigned to the open position of the valve.
- the tooth segment 2 and the further segment 3 can rest directly or indirectly on the second stop 6. If the valve is to be closed again, this movement is reversible until the state shown in FIG. 1 is reached again.
- Fig. 4 the actuator is shown in plan view in the closed state of the valve.
- the side 4a 'of the two-sided lever 4 facing the first axis of rotation Dl is separated by two partial arms a' arranged at right angles to one another
- FIG. 5 shows the side view of the actuator in the closed position of the valve.
- the further segment 3 is connected to a spring element 3b, the spring force of which is aligned with the further segment 3 in the direction of the first stop (not shown).
- the connection between the further segment 3 and the spring element 3b takes place indirectly via a
- the actuator shown is particularly advantageously suitable for the reversible movement of a valve flap of a gas recirculation valve of a motor vehicle.
- FIG. 6 shows an actuator according to the prior art.
- a valve flap 8 ' is firmly connected to a drive shaft 1'.
- a toothed segment 2 ' is arranged on the drive shaft I 1 and is connected to the pinion 9' of an electric motor 11 'via an intermediate wheel 10'.
- the transmission ratio is constant here, so that it is not possible with a constant power supply to the electric motor II 1 to increase the torque acting on the valve flap 8 1 in the starting state.
- loosening of the valve flap 8 'in the valve is problematic if there are incrustations and dirt in the valve.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanically-Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10327868A DE10327868A1 (de) | 2003-06-18 | 2003-06-18 | Stellantrieb zur reversiblen Bewegung einer Ventilklappe eines Ventils |
PCT/EP2004/050925 WO2004111425A1 (de) | 2003-06-18 | 2004-05-26 | Stellantrieb zur reversiblen bewegung einer ventilklappe eines ventils |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1633966A1 true EP1633966A1 (de) | 2006-03-15 |
EP1633966B1 EP1633966B1 (de) | 2011-05-11 |
Family
ID=33495197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04734845A Expired - Lifetime EP1633966B1 (de) | 2003-06-18 | 2004-05-26 | Stellantrieb zur reversiblen bewegung einer ventilklappe eines ventils |
Country Status (4)
Country | Link |
---|---|
US (1) | US7032877B2 (de) |
EP (1) | EP1633966B1 (de) |
DE (1) | DE10327868A1 (de) |
WO (1) | WO2004111425A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE526824C2 (sv) * | 2004-03-26 | 2005-11-08 | Stt Emtec Ab | Ventil |
US20070256747A1 (en) * | 2006-05-08 | 2007-11-08 | Gt Development | Motor driven valve |
US7775197B2 (en) * | 2006-07-10 | 2010-08-17 | Continental Automotive Canada, Inc. | Engine sub-system actuators having variable ratio drive mechanisms |
DE102007054769A1 (de) * | 2007-11-16 | 2009-05-20 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Stellantrieb für bidirektionales Stellglied |
US8215614B2 (en) * | 2008-02-04 | 2012-07-10 | Schneider Electric Buildings, Llc | Two position actuator impact limiter |
DE102010000688A1 (de) * | 2010-01-05 | 2011-07-07 | Robert Bosch GmbH, 70469 | Getriebeanordnung sowie Abgasturbolader |
DE102011004018A1 (de) * | 2011-02-14 | 2012-08-16 | Robert Bosch Gmbh | Stellantrieb, Strömungsventil, Abgasturbolader |
DE102015224467B4 (de) | 2015-12-07 | 2019-10-10 | Continental Automotive Gmbh | Ventil |
US20180030936A1 (en) * | 2016-08-01 | 2018-02-01 | G.W. Lisk Company, Inc. | Exhaust gas recirculation valve having crowned spline |
IL255916B (en) | 2017-11-26 | 2020-08-31 | Yacob Rafaeli | Rotary valve assembly for an engine head in an internal combustion engine |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5409194A (en) * | 1990-04-12 | 1995-04-25 | Crouzet Electromenager | Variable flow electrically controlled valve |
DE19524941B4 (de) * | 1995-07-08 | 2006-05-18 | Siemens Ag | Lastverstellvorrichtung |
US6135415A (en) * | 1998-07-30 | 2000-10-24 | Siemens Canada Limited | Exhaust gas recirculation assembly |
JP2000130210A (ja) * | 1998-10-29 | 2000-05-09 | Aisin Seiki Co Ltd | スロットル制御装置 |
DE19928632A1 (de) * | 1999-06-23 | 2000-12-28 | Mannesmann Vdo Ag | Lastverstellvorrichtung |
US6216677B1 (en) * | 1999-09-10 | 2001-04-17 | Eaton Corporation | EGR assembly mounted on exhaust system of a heavy duty diesel engine |
US6267352B1 (en) * | 1999-11-11 | 2001-07-31 | Ford Global Technologies, Inc. | Electronic throttle return mechanism with default and gear backlash control |
US6286481B1 (en) * | 1999-11-11 | 2001-09-11 | Ford Global Technologies, Inc. | Electronic throttle return mechanism with a two-spring and one lever default mechanism |
US6244564B1 (en) * | 2000-02-10 | 2001-06-12 | Kabushuki Kaisha Sankyo Seiki Seisakusho | Motor-type damper unit |
JP2001303978A (ja) * | 2000-04-25 | 2001-10-31 | Aisan Ind Co Ltd | スロットル制御装置 |
DE10133630A1 (de) * | 2001-07-11 | 2003-01-30 | Siemens Ag | Elektromotorischer Antrieb |
DE10135330B4 (de) * | 2001-07-19 | 2012-07-26 | Behr Gmbh & Co. Kg | Antriebseinrichtung für Klappen zur Steuerung der Durchströmung der Luftleitkanäle einer Kraftfahrzeug-Heizungs- oder Klimaanlage |
-
2003
- 2003-06-18 DE DE10327868A patent/DE10327868A1/de not_active Withdrawn
-
2004
- 2004-05-26 EP EP04734845A patent/EP1633966B1/de not_active Expired - Lifetime
- 2004-05-26 US US10/514,125 patent/US7032877B2/en not_active Expired - Fee Related
- 2004-05-26 WO PCT/EP2004/050925 patent/WO2004111425A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2004111425A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20050236597A1 (en) | 2005-10-27 |
WO2004111425A1 (de) | 2004-12-23 |
DE10327868A1 (de) | 2005-01-05 |
US7032877B2 (en) | 2006-04-25 |
EP1633966B1 (de) | 2011-05-11 |
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