WO2005047658A1 - Verstellvorrichtung zum verstellen der relativen drehwinkellage einer nockenwelle gegenüber einer kurbelwelle einer brennkraftmaschine - Google Patents
Verstellvorrichtung zum verstellen der relativen drehwinkellage einer nockenwelle gegenüber einer kurbelwelle einer brennkraftmaschine Download PDFInfo
- Publication number
- WO2005047658A1 WO2005047658A1 PCT/EP2004/011151 EP2004011151W WO2005047658A1 WO 2005047658 A1 WO2005047658 A1 WO 2005047658A1 EP 2004011151 W EP2004011151 W EP 2004011151W WO 2005047658 A1 WO2005047658 A1 WO 2005047658A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adjusting
- shaft
- motor
- gear
- camshaft
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
Definitions
- Adjustment device for adjusting the relative angle of rotation of a camshaft relative to a crankshaft of an internal combustion engine
- the invention relates to an adjusting device for adjusting the relative angle of rotation of a camshaft relative to a crankshaft of an internal combustion engine with an adjusting gear designed as a three-shaft gear, which has a crankshaft-fixed drive part, a camshaft-fixed output part and an adjusting shaft connected to an adjusting motor shaft of an adjusting motor.
- camshaft adjuster In modern internal combustion engines, a camshaft adjuster is used to vary the timing of the gas exchange valves, which improves consumption and performance over the entire load and speed range. It is known that camshaft adjusters can be operated hydraulically. Conventional, hydraulically operated camshaft adjusters (axial piston adjuster, vane, swivel and segment wing) have the advantage that the hydraulic valve required for control does not have to be arranged directly axially in front of the adjuster, but can be attached decentrally at a location where there is enough space for the valve is available. The oil is fed to the adjuster through holes in the cylinder head. As a result, hydraulic camshaft adjusters are very short and can also be under cramped installation conditions.
- the invention is therefore based on the object of providing an adjusting device for adjusting the angular position of a camshaft relative to a crankshaft of an internal combustion engine, which combines the advantages of the electric camshaft adjusters with the advantage of a very short construction similar to the hydraulic devices.
- the object is achieved in an internal combustion engine with the features of the preamble of claims 1, 2, 6, 10 and 14 in that the adjusting motor is designed as an electric motor. Either it is located spatially separated from an adjustment gear, the adjustment torque generated by it being either mechanically transmitted to the adjustment gear by a flexible shaft or driving a compressor whose pressure air acts on the adjustment gear via a pneumatic motor, or drives a pump for hydraulic fluid which acts on the adjustment gear via a hydraulic motor. Or it is arranged radially or parallel to the camshaft, and the adjustment torque generated by it is transmitted to the adjustment shaft via a gear transmission or a secondary drive.
- the electric motor can be placed anywhere.
- the adjustment torque generated by it is transmitted through the flexible shaft.
- the flexible shaft - like a speedometer shaft - can be variably adapted to the installation space and transfers the rotation and the torque from the electric motor shaft to the adjusting shaft of the adjusting gear. Because the efficiency of this transmission is very high, the spatial separation of the variable speed gear and the electric motor can be realized. In order not to overload the environment of the internal combustion engine too much, it has proven to be particularly advantageous to use an electric motor that is small in terms of output but rotates quickly. Its moment is then transmitted via the flexible shaft to the adjustment shaft of the adjustment gear, the transmission ratio of which is expediently in the range 1:50 to 1: 120.
- the adjustment gear is not directly connected to an electric motor, but to a pneumatic motor.
- the main advantage of the pneumatic motor is that the motor is axially much shorter than an electric motor used directly for adjustment or can be partially integrated into the installation space of the transmission.
- the direction of rotation of the pneumatic motor is controlled by a directional valve that draws the compressed air required from a compressor, which in turn is driven by an electric motor. It is advantageous to use a directional control valve that is in the blocking position when not actuated.
- Both the compressor and the electric motor are arranged decentrally to the adjustment gear at a point where there is enough space available.
- a pressure vessel is arranged between the compressor and the directional control valve, which compensates for possible pressure fluctuations. This can also be placed anywhere.
- Another advantage of the pressure vessel is that even when starting the Internal combustion engine has enough pressure to operate the pneumatic motor if the compressor has not yet generated enough pressure. In particular, the cold start behavior of the internal combustion engine is improved. So that the compressed air does not escape from the pressure vessel when the electric motor is at a standstill, a check valve is arranged between it and the compressor.
- the compressor can also be driven by a combustion engine belt instead of an electric motor. However, the compressor speed then depends on the speed of the internal combustion engine, while when using an electric motor the compressor can always be operated independently of the internal combustion engine.
- a motor with a variable delivery volume e.g. B. a double-stroke vane motor can be used.
- the adjustment is made using a hydraulic motor.
- the structure and operation of the system correspond to those of the electric pneumatic system, except that a fluid is used as the medium instead of air.
- the directional valve can be represented, for example, by a proportional valve, two 3/2-way valves, four 2/2-way valves or by a controllable pump and a 4/2-way valve in a switching or proportional version.
- the advantage of this system is that higher pressures can be generated.
- a disadvantage is the somewhat higher effort with regard to the return of the fluid.
- the oil of the engine oil circuit, but also another, additional fluid, which is not exposed to such strong fluctuations in operating temperature, can be used as the fluid. Because of the pressure vessel, the pressure is available in the starting phase of the internal combustion engine.
- the hydraulic motor can thus be operated more reliably than a hydraulic device for adjusting the angle of rotation.
- the adjusting motor is also possible to design the adjusting motor as an electric motor and to arrange it radially.
- Its adjustment torque is controlled by a gear transmission, is preferably 1: 1 driven.
- gear trainings for example, bevel gear, worm gear or helical gear are conceivable.
- the advantage of this system is that compressed air units are not required, and integration into a fluid circuit is not necessary. The system is therefore simpler to set up, unaffected by leaks and therefore easier to maintain.
- the adjustment motor parallel to the adjustment gear.
- the torque transmission from the adjusting motor shaft to the adjusting gear is then carried out by means of a secondary drive.
- This secondary drive can be designed, for example, as a belt drive, as a chain drive, as a card drive or as an additional spur gear stage.
- the advantage of this arrangement is the same as with the radially arranged electric motor: You do not need compressed air units nor do you have to integrate it into a fluid circuit. The system is therefore simpler to set up, unaffected by leaks and therefore easier to maintain.
- FIG. 1 shows a schematic representation of an electromechanical system with an electric motor, flexible shaft, adjusting gear and camshaft
- Figure 2 is a schematic representation of an electro-pneumatic system with an electric motor, compressor, check valve, pressure vessel, directional control valve, pneumatic motor, adjustment gear and camshaft
- Figure 3 is a schematic representation of an electro-hydraulic system with an electric motor, pump, check valve, pressure vessel, directional control valve, hydraulic motor, adjustment gear and camshaft;
- FIG. 4 shows a cross-sectional illustration of an electromechanical system with a radially arranged adjusting motor shaft
- Figure 5 shows a cross section of an electromechanical system with a parallel adjustment motor.
- FIG. 1 shows the basic arrangement of the components of an adjusting device 1 for the electromechanical adjustment of the relative rotational angle position of a camshaft 2 relative to a crankshaft (not shown) of an internal combustion engine with an adjusting gear 3 designed as a three-shaft gear, which has a drive part 4 fixed to the crankshaft, a driven part fixed to the camshaft and has an adjusting shaft 7 connected to an adjusting motor shaft 5 of an electric motor 6.
- the adjusting torque of the adjusting motor shaft 5 generated by the electric motor 6 is mechanically transmitted to the adjusting shaft 7 by a flexible shaft 8. This enables a spatial separation of the electric motor 6 and the adjustment gear 3; the spatial position of the components of the adjusting device 1 shown is only to be regarded as an example, because the flexible shaft 8 can be adapted to the installation space.
- FIG. 2 shows the basic arrangement of the components of an adjusting device V for the electromechanical adjustment of the relative rotational angle position of a camshaft 2 'relative to a crankshaft (not shown) of an internal combustion engine with an adjusting gear 3' designed as a three-shaft gearbox, which is a drive part 4 'fixed to the crankshaft camshaft-fixed output part and an adjustment shaft T driven by a pneumatic motor 13.
- a check valve 11 is arranged between the pressure vessel 10 and the compressor 9 so that compressed air is available as soon as the internal combustion engine starts and the compressor is not yet running.
- the pressure vessel 10 is in compressed air connection with a directional control valve 12 in a switching or proportional design, which is designed, for example, as a 4/3-way valve with two solenoid coils.
- the directional control valve 12 operates a pneumatic motor 13 which is rotatably connected to the adjusting shaft 7 'of the adjusting gear 3'.
- FIG. 3 shows the basic arrangement of the components of an adjusting device 1 "for the electromechanical adjustment of the relative rotational angle position of a camshaft 2" relative to a crankshaft (not shown) of an internal combustion engine with an adjusting gear 3 "designed as a three-shaft gearbox, which has a drive part 4" fixed to the crankshaft. , has a camshaft-fixed output part and an adjusting shaft 7 "driven by a hydraulic motor 16.
- the adjusting torque of the adjusting motor shaft 5" generated by an electric motor 6 drives a pump 14 which pumps fluid into a pressurized hydraulic accumulator 15.
- a check valve 11 is arranged so that fluid is available under pressure when the internal combustion engine is started and the pump is not yet running.
- the hydraulic accumulator 15 is connected to a directional control valve 12 ", which is designed, for example, as a proportional valve.
- the directional control valve 12" operates a hydraulic motor 16 which is connected in a rotationally fixed manner to the adjusting shaft 7 "of the adjusting gear 3".
- FIG. 4 shows a cross section through the essential components of an adjusting device 1 (FIG. 1) for electromechanically adjusting the relative rotational angle position of a camshaft 2 (FIG. 1) relative to a crankshaft (not shown) of an internal combustion engine with an adjusting gear 3 designed as a three-shaft gearbox (FIG. 1) ), which has a crankshaft-fixed drive part, a camshaft-fixed output part and an adjustment shaft 7 connected to an adjustment motor shaft 5 of an electric motor 6, the Electric motor 6 is arranged radially.
- the adjusting torque generated by the electric motor 6 of the adjusting motor shaft 5 is mechanically transmitted to the adjusting shaft 7 by a gear transmission 17. This allows a radial arrangement of the electric motor 6 and the adjusting shaft 7.
- FIG. 5 shows a cross section through the essential components of an adjusting device 1 (FIG. 1) for the electromechanical adjustment of the relative rotational angle position of a camshaft 2 (FIG. 1) with respect to a crankshaft (not shown) of an internal combustion engine with an adjusting gear 3 designed as a three-shaft gear (FIG. 1), which has a crankshaft-fixed drive part, a camshaft-fixed output part and an adjusting shaft 7 connected to an adjusting motor shaft 5 of an electric motor 6, the electric motor being arranged parallel to the adjusting shaft.
- the adjustment torque of the adjustment motor shaft 5 generated by the electric motor 6 is mechanically transmitted to the adjustment shaft 7 by a secondary drive 18.
- the secondary drive is shown as a belt drive.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006537099A JP2007510085A (ja) | 2003-11-08 | 2004-10-06 | 内燃機関のクランク軸に対するカム軸の相対回転角位置を調節する調節装置 |
US10/578,599 US20070074692A1 (en) | 2003-11-08 | 2004-10-06 | Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine |
US12/136,832 US7717072B2 (en) | 2003-11-08 | 2008-06-11 | Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine |
US12/200,283 US7882813B2 (en) | 2003-11-08 | 2008-08-28 | Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10352255.7A DE10352255B4 (de) | 2003-11-08 | 2003-11-08 | Verstellvorrichtung zum Verstellen der relativen Drehwinkellage einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine |
DE10352255.7 | 2003-11-08 |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/578,599 A-371-Of-International US20070074692A1 (en) | 2003-11-08 | 2004-10-06 | Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine |
US12/136,832 Division US7717072B2 (en) | 2003-11-08 | 2008-06-11 | Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine |
US12/200,283 Division US7882813B2 (en) | 2003-11-08 | 2008-08-28 | Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005047658A1 true WO2005047658A1 (de) | 2005-05-26 |
Family
ID=34559506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/011151 WO2005047658A1 (de) | 2003-11-08 | 2004-10-06 | Verstellvorrichtung zum verstellen der relativen drehwinkellage einer nockenwelle gegenüber einer kurbelwelle einer brennkraftmaschine |
Country Status (4)
Country | Link |
---|---|
US (3) | US20070074692A1 (de) |
JP (1) | JP2007510085A (de) |
DE (1) | DE10352255B4 (de) |
WO (1) | WO2005047658A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010149928A1 (fr) * | 2009-06-25 | 2010-12-29 | Envision Vehicle Engineering Novasio Technology Event | Procede et dispositif de demarrage du moteur d'un vehicule |
WO2020160714A1 (de) * | 2019-02-08 | 2020-08-13 | Schaeffler Technologies AG & Co. KG | Nockenwellenverstellsystem und verfahren zum betrieb eines nockenwellenverstellsystems |
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DE102006007584A1 (de) | 2006-02-18 | 2007-08-30 | Schaeffler Kg | Nockenwellenversteller mit einem Überlagerungsgetriebe |
DE102006007651A1 (de) | 2006-02-18 | 2007-09-06 | Schaeffler Kg | Nockenwellenversteller mit einem Überlagerungsgetriebe |
DE102006010649A1 (de) | 2006-03-06 | 2007-09-13 | Ovalo Gmbh | Vorrichtung zur Nockenwellenverstellung |
DE102006016650B4 (de) | 2006-04-08 | 2019-05-16 | Schaeffler Technologies AG & Co. KG | Nockenwellentrieb für eine Brennkraftmaschine |
DE102006017232A1 (de) * | 2006-04-12 | 2007-10-25 | Schaeffler Kg | Synchronisationsvorrichtung für einen Motor |
DE102008021220B4 (de) * | 2008-04-28 | 2010-02-18 | Pierburg Gmbh | Vorrichtung zur Phasenverschiebung des Drehwinkels eines Antriebsrades zu einer Abtriebswelle |
DE102008039009A1 (de) | 2008-08-21 | 2010-02-25 | Schaeffler Kg | Nockenwellenversteller |
US8479379B2 (en) * | 2008-11-03 | 2013-07-09 | Carefusion 202, Inc. | Roots-type blower rotor alignment apparatus |
DE102009022869A1 (de) * | 2009-05-27 | 2010-12-09 | Hydraulik-Ring Gmbh | Flügelzellennockenwellenverstellersystem |
DE102009050779B4 (de) | 2009-10-27 | 2016-05-04 | Hilite Germany Gmbh | Schwenkmotornockenwellenversteller mit einer Reibscheibe und Montageverfahren |
DE102009052841A1 (de) * | 2009-11-13 | 2011-05-19 | Hydraulik-Ring Gmbh | Nockenwelleneinsatz |
DE102010045358A1 (de) | 2010-04-10 | 2011-10-13 | Hydraulik-Ring Gmbh | Schwenkmotornockenwellenversteller mit einem Hydraulikventil |
DE102010019005B4 (de) | 2010-05-03 | 2017-03-23 | Hilite Germany Gmbh | Schwenkmotorversteller |
DE102011117027A1 (de) | 2011-10-27 | 2013-05-02 | Magna Powertrain Ag & Co. Kg | Nockenwellenverstellung |
DE102011117026B4 (de) | 2011-10-27 | 2015-01-08 | Magna Powertrain Ag & Co. Kg | Nockenwellenverstellung |
DE102011117528A1 (de) | 2011-11-03 | 2013-05-08 | Magna Powertrain Ag & Co. Kg | Nockenwellenverstellantrieb |
DE102012207318B4 (de) | 2012-05-03 | 2021-07-15 | Hanon Systems Efp Deutschland Gmbh | Nockenwellenversteller |
CN103579734A (zh) * | 2012-07-30 | 2014-02-12 | 鸿富锦精密工业(深圳)有限公司 | 天线支架 |
DE102015120748A1 (de) * | 2015-06-29 | 2016-12-29 | Hans-Erich Maul | Antrieb eines Nockenwellenstellers |
SE540733C2 (sv) | 2016-06-15 | 2018-10-23 | Scania Cv Ab | Förbränningsmotor och fordon innefattande en hydraulisk fasförskjutningsanordning |
DE102017102692B4 (de) | 2017-02-10 | 2023-03-30 | Denso Corporation | Elektrischer Nockenwellensteller |
DE102022132998B3 (de) | 2022-12-12 | 2023-12-28 | Schaeffler Technologies AG & Co. KG | Brennkraftmaschine mit einem Nockenwellenversteller und Nockenwelle mit einem Nockenwellenversteller |
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-
2003
- 2003-11-08 DE DE10352255.7A patent/DE10352255B4/de not_active Expired - Fee Related
-
2004
- 2004-10-06 US US10/578,599 patent/US20070074692A1/en not_active Abandoned
- 2004-10-06 JP JP2006537099A patent/JP2007510085A/ja active Pending
- 2004-10-06 WO PCT/EP2004/011151 patent/WO2005047658A1/de active Application Filing
-
2008
- 2008-06-11 US US12/136,832 patent/US7717072B2/en not_active Expired - Fee Related
- 2008-08-28 US US12/200,283 patent/US7882813B2/en not_active Expired - Fee Related
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GB518581A (en) * | 1937-09-18 | 1940-03-01 | Porsche Ferdinand A | Improvements in and relating to internal combustion engines |
DE3536919A1 (de) * | 1985-10-17 | 1987-04-23 | Bayerische Motoren Werke Ag | Vorrichtung zur aenderung der relativen drehlage eines getriebenen zu einem treibenden maschinenteil, insbes. einer steuerwelle gegenueber einer kurbelwelle einer brennkraftmaschine |
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WO2010149928A1 (fr) * | 2009-06-25 | 2010-12-29 | Envision Vehicle Engineering Novasio Technology Event | Procede et dispositif de demarrage du moteur d'un vehicule |
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CN102802987A (zh) * | 2009-06-25 | 2012-11-28 | 昂维仲汽车工程诺瓦兹沃技术公司 | 汽车发动机启动方法及装置 |
WO2020160714A1 (de) * | 2019-02-08 | 2020-08-13 | Schaeffler Technologies AG & Co. KG | Nockenwellenverstellsystem und verfahren zum betrieb eines nockenwellenverstellsystems |
Also Published As
Publication number | Publication date |
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JP2007510085A (ja) | 2007-04-19 |
US20070074692A1 (en) | 2007-04-05 |
US7717072B2 (en) | 2010-05-18 |
DE10352255A1 (de) | 2005-06-09 |
US20080236530A1 (en) | 2008-10-02 |
US20080314345A1 (en) | 2008-12-25 |
DE10352255B4 (de) | 2017-03-09 |
US7882813B2 (en) | 2011-02-08 |
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