WO2011070895A1 - 可変バルブタイミング装置 - Google Patents

可変バルブタイミング装置 Download PDF

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Publication number
WO2011070895A1
WO2011070895A1 PCT/JP2010/070395 JP2010070395W WO2011070895A1 WO 2011070895 A1 WO2011070895 A1 WO 2011070895A1 JP 2010070395 W JP2010070395 W JP 2010070395W WO 2011070895 A1 WO2011070895 A1 WO 2011070895A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
variable
shaft
camshaft
rotation
Prior art date
Application number
PCT/JP2010/070395
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
正夫 櫻井
Original Assignee
Sakurai Masao
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 Sakurai Masao filed Critical Sakurai Masao
Priority to CN2010800554036A priority Critical patent/CN102648336A/zh
Priority to US13/509,026 priority patent/US20120222513A1/en
Priority to DE112010004706T priority patent/DE112010004706T5/de
Priority to KR1020127014926A priority patent/KR20120089337A/ko
Publication of WO2011070895A1 publication Critical patent/WO2011070895A1/ja

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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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • 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
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0535—Single overhead camshafts [SOHC]
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/032—Electric motors
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • 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
    • Y10T74/1956—Adjustable
    • Y10T74/19565—Relative movable axes
    • Y10T74/1957—Parallel shafts

Definitions

  • the present invention relates to a variable valve timing device that changes the opening / closing timing of an intake valve and an exhaust valve by changing the rotational phase of a camshaft with respect to an engine crankshaft, for example.
  • the camshaft cam is operated by changing the rotational phase of the camshaft with respect to the crankshaft of the engine in order to prevent overlap between the intake valve and exhaust valve, improve output, and achieve low fuel consumption.
  • Many are provided with a variable valve timing device that changes the opening and closing timing of the intake and exhaust valves.
  • variable valve timing device As a conventional variable valve timing device of this type, an outer gear that transmits the rotational power of the crankshaft of the engine, an inner gear that transmits the rotational power to the camshaft, and a state between the outer gear and the inner gear that is engaged with both.
  • a variable valve timing device having a planetary gear that turns around the inner gear and a motor that is a drive source that changes the turning speed of the planetary gear has been proposed (for example, see Patent Document 1).
  • the planetary gear turns around the inner gear while meshing with the outer gear and the inner gear, transmits the rotational power of the outer gear to the inner gear, and uses the motor to turn the planetary gear.
  • the rotational phase of the inner gear with respect to the outer gear is changed, and the rotational phase of the camshaft with respect to the crankshaft is changed.
  • the conventional variable valve timing device has the advantage of easily changing the rotational phase of the inner gear with respect to the outer gear if the rotation speed of the planetary gear is changed by a motor.
  • it is necessary to provide an energization control means, a rotation detection means, etc. for the motor as a drive source, and the structure of the apparatus is naturally complicated, and the cost may increase. Yes.
  • the present invention was developed in order to effectively solve the problems of the conventional variable valve timing device, and the camshaft of the camshaft is operated by changing the rotational phase of the camshaft with respect to the crankshaft of the engine.
  • a variable valve timing device that changes the opening / closing timing of at least one of an intake valve and an exhaust valve, wherein an initial motion gear that transmits rotational power from a crankshaft and a rear gear that transmits rotational power to a camshaft can be independently rotated.
  • a first variable gear that meshes with the initial movement gear and a second variable gear that meshes with the rear movement gear are arranged so as to be rotatable integrally with each other on a second axis that is spaced apart and parallel to the first axis.
  • the number of teeth of the first variable gear and the number of teeth of the second variable gear are set different from each other, and the second shaft is held by holding the second shaft.
  • an eccentric plate that rotatably supports the base end of the arm and that rotates in synchronization with the crankshaft, and the second shaft is rotated by the gear case.
  • the rotational phase of the trailing gear with respect to the initial gear is changed to change the rotational phase of the camshaft with respect to the crankshaft, and the rotation of the eccentric plate of the rotation control means To displace the base end of the arm and continuously rotate the gear case clockwise or counterclockwise, thereby And wherein the changing the dislocation phase continuously.
  • the first and second variable gears having different numbers of teeth are available. It is possible to easily change the rotational phase of the rear gear relative to the initial gear by simply interposing a so-called differential gear so as to rotate integrally and shifting the positions of the first and second variable gears with the gear case. . Therefore, since complicated control means is not required for the apparatus, the structure of the apparatus can be simplified and the cost can be reduced, and the rotational phase of the camshaft with respect to the crankshaft can be reliably changed. Thus, a reliable change in the valve opening / closing timing can be guaranteed.
  • the gear case can be rotated continuously.
  • the rotation phase can be continuously changed.
  • FIG. 1 is a front view showing a state in which the variable valve timing device according to the first embodiment is attached to an engine
  • (B) is a partial cross-sectional view taken along line AA of (A).
  • It is a graph which shows the phase change of valve operation at the time of rotating a gear case.
  • It is a graph which shows the phase change of valve operation by the size of the difference of the number of teeth of the 1st variable gear and the 2nd variable gear.
  • It is explanatory drawing which shows the 1st example of the rotation control means of the gear case in the variable valve timing apparatus which concerns on Example 1.
  • FIG. FIG. 6 is an explanatory diagram illustrating a second example of a gear case rotation control unit in the variable valve timing device according to the first embodiment.
  • FIG. 6 is an explanatory diagram illustrating a third example of a gear case rotation control unit in the variable valve timing device according to the first embodiment.
  • FIG. 9 is an explanatory diagram showing a fourth example of the gear case rotation control means in the variable valve timing device according to the first embodiment.
  • (A) is explanatory drawing which shows the 5th example of the rotation control means of the gear case in the variable valve timing apparatus which concerns on Example 1
  • (B) is explanatory drawing which shows the support position of the arm base end of (A). It is a graph which shows the phase change of valve
  • FIG. 1 is a front view showing a state in which the variable valve timing device according to the second embodiment is attached to an engine, and (B) is a partial cross-sectional view taken along line AA of (A).
  • the present invention relates to a variable valve timing device that changes the rotational phase of a camshaft relative to a crankshaft of an engine and changes the opening / closing timing of at least one of an intake valve and an exhaust valve operated by the cam of the camshaft.
  • An initial gear that can transmit rotational power from the rear shaft and a rear gear that transmits rotational power to the camshaft are arranged on the first shaft so as to be independently rotatable, and the initial motion on a second shaft that is parallel to the first shaft.
  • a first variable gear meshing with the gear and a second variable gear meshing with the rear drive gear are arranged so as to be integrally rotatable, the second shaft is held, and the second shaft is used as the central axis.
  • An adjusting means for rotating is provided, the number of teeth of the first variable gear is set to be different from the number of teeth of the second variable gear, and the second shaft is rotated by the adjusting means.
  • the rotational phase of the rear gear with respect to the initial gear is changed, and the rotational phase of the camshaft with respect to the crankshaft is changed. Since no control means is required, the structure of the apparatus can be simplified and the cost can be reduced, and the rotational phase of the camshaft with respect to the crankshaft can be reliably changed.
  • a variable valve timing device 1 includes a first shaft 2 having a camshaft 12 extended as shown in FIG.
  • An initial motion gear 3 disposed on the first shaft 2 so as to be idled, a rear motion gear 4 disposed fixedly on the first shaft 2, and a second parallel to the first shaft 2 spaced apart from each other.
  • a shaft 5, a first variable gear 6 and a second variable gear 7 which are disposed on the second shaft 5 so as to be rotatable together; and a gear case 8 which is an adjustment means which is rotatably supported by the first shaft 2.
  • the gear case 8 is configured to hold the second shaft 5 and accommodate the initial gear 3, the rear gear 4, the first variable gear 6, and the second variable gear 7 therein.
  • the timing pulley 9b on the camshaft 12 side and the initial gear 3 are integrally formed, and the rotational power of the crankshaft 11 is transmitted from the timing pulley 9a on the crankshaft 11 side via the timing belt 10.
  • the rotational power is transmitted to the initial gear 3 at the same time.
  • the number of teeth of the first variable gear 6 and the number of teeth of the second variable gear 7 are set to be different.
  • One variable gear 6 has a smaller diameter than the second variable gear 7, and the number of teeth of the first variable gear 6 is set to be smaller than the number of teeth of the second variable gear 7. Therefore, since the distance between the first shaft 2 and the second shaft 5 is constant, the initial movement gear 3 has a larger diameter than the rear movement gear 4.
  • both gears 6 and 7 are integrally formed so that the first variable gear 6 and the second variable gear 7 can be rotated together, but the present invention is not limited to this.
  • the gears 6 and 7 may be formed separately, and the gears 6 and 7 may be connected to each other to connect the gears 6 and 7 integrally.
  • the rotational power is transmitted to the first variable gear 6 meshed with the initial gear 3 and the second variable gear 7 provided integrally with the first variable gear 6, and the rear motion meshed with the second variable gear 7. It is transmitted to the gear 4 and finally transmitted to the camshaft 12 via the first shaft 2 to which the rear drive gear 4 is fixed.
  • the camshaft 12 is configured to open and close intake valves (exhaust valves) 13 and 14 by the cam 12a or the cam 12b, respectively.
  • intake valves exhaust valves
  • the camshaft 12 rotates once while the crankshaft 11 rotates twice, so the rotation ratio between the crankshaft 11 and the camshaft 12 is 2: 1. Therefore, on the assumption that the number of teeth of the first variable gear 6 and the second variable gear 7 is different, the number of teeth of the initial movement gear 3 and the rear movement gear 4 is set so as to achieve the rotation ratio.
  • the gear case 8 is rotated by L ⁇ up to ⁇ 2 in the counterclockwise direction in FIG.
  • the second shaft 5 held in the gear case 8 is also rotated in the same direction, and the first variable gear 6 and the second variable gear 7 are respectively connected to the initial gear 3 and the rear gear 4.
  • the position is shifted.
  • the rotational phase of the trailing gear 4 relative to the initial gear 3 is advanced, and the rotational phase of the camshaft 12 relative to the crankshaft 11 is also advanced.
  • the rotational phase of the camshaft 12 is advanced, and the phase of the valve operation of the intake valves (exhaust valves) 13 and 14 operated by the cam 12a or cam 12b of the camshaft 12 is also advanced, as shown in FIG.
  • the phase of the valve operation when the gear case 8 is at the fixed reference position ⁇ 1 is advanced by t1.
  • the said t1 will change according to rotation amount L (theta) of the gear case 8.
  • the gear case 8 when the gear case 8 is rotated about the first shaft 2 as the central axis in the clockwise direction in FIG. 1A to ⁇ 3 by R ⁇ , the second shaft 5 held by the gear case 8 is also in the same direction.
  • the first variable gear 6 and the second variable gear 7 are shifted in position in a state where the first variable gear 6 and the second variable gear 7 are engaged with the initial movement gear 3 and the rear movement gear 4, respectively. 4 is retarded, and the rotational phase of the camshaft 12 relative to the crankshaft 11 is also retarded.
  • the rotational phase of the camshaft 12 is retarded, and the phase of the valve operation of the intake valves (exhaust valves) 13 and 14 operated by the cam 12a or cam 12b of the camshaft 12 is also retarded.
  • the phase of the valve operation when the gear case 8 is rotated by R ⁇ up to ⁇ 3 is delayed by t2 as compared with the phase of the valve operation when the gear case 8 is at the fixed reference position ⁇ 1.
  • t2 also changes in accordance with the rotation amount R ⁇ of the gear case 8.
  • the rotational phase of the camshaft can be advanced or retarded according to the rotational direction of the gear case 8, and the amount of change in the rotational phase of the camshaft can be adjusted according to the rotational amount of the gear case 8.
  • the amount of change in the rotational phase can be adjusted by the difference in the number of teeth of the first variable gear 6 and the second variable gear 7. The greater the difference in the number of teeth between the second variable gear 7 and the greater the amount of change in the rotational phase. That is, when the gear case 8 is rotated counterclockwise in FIG. 1A to ⁇ 2 by L ⁇ , even if the rotation amount L ⁇ of the gear case 8 is the same, the teeth of the first variable gear 6 and the second variable gear 7 are the same.
  • the phase difference t4 of the valve operation when the difference in the number of teeth between the first variable gear 6 and the second variable gear 7 is larger than the phase difference t3 of the valve operation when the number difference is small. .
  • the first variable gear 6 has a smaller diameter than the second variable gear 7, and the number of teeth of the first variable gear 6 is set to be smaller than the number of teeth of the second variable gear 7. Accordingly, the initial gear 3 has a larger diameter than the rear gear 4, but the present invention is not limited to this, and the reverse configuration, that is, the first variable gear 6 is replaced with the second variable gear 7.
  • the number of teeth of the first variable gear 6 is set to be larger than the number of teeth of the second variable gear 7, and accordingly, the initial gear 3 has a smaller diameter than the rear gear 4. Is also optional depending on implementation. In this case, unlike the case of the present embodiment, when the gear case 8 is rotated counterclockwise in FIG.
  • the number of teeth is different in the process in which the rotational power is transmitted from the initial gear 3 that can transmit the rotational power from the crankshaft 11 to the rear drive gear 4 that transmits the rotational power to the camshaft 12.
  • the first and second variable gears 6 and 7, so-called differential gears, are interposed so as to be integrally rotatable, and the position of the first and second variable gears 6 and 7 can be easily shifted with respect to the initial gear 3. Since the rotation phase of the rear drive gear 4 can be changed, no complicated control means is required for the apparatus, so that the structure of the apparatus can be simplified and the cost can be reduced, and the crankshaft can be reliably connected. 11, the rotational phase of the camshaft 12 with respect to 11 can be changed. As a result, it is possible to reliably change the opening / closing timing of the intake valves (exhaust valves) 13 and 14 to prevent overlap between the intake valves and the exhaust valves, improve engine output and reduce fuel consumption.
  • the rotational phase of the camshaft 12 with respect to the crankshaft 11 can be changed by easily shifting the positions of the first and second variable gears 6 and 7 simply by rotating the gear case 8. If the rotation is continued, the rotation phase can be continuously changed. As a result, as shown in the description with reference to FIGS. 8 to 10 described later, only the opening / closing timing of the intake valves (exhaust valves) 13 and 14 is achieved. In addition, the opening / closing time can be changed.
  • FIG. 4 shows the gear case 8 as the rotation control means of the gear case 8.
  • a projecting plate 15 provided at the upper end
  • a quote spring 17 that draws the projecting plate 15 toward the bracket 16 fixed to the engine frame
  • a stopper bolt 18 that restricts rotation of the gear case 8 provided in the bracket 16, and the projecting plate
  • a rod or wire 19 that draws 15 against the elastic urging force of the cited spring 17, and the rod or wire 19 pulls or loosens in conjunction with the accelerator.
  • FIG. 5 shows a semicircular worm wheel 20 provided at the upper end of the gear case 8, a worm 21 meshing with the worm wheel 20, and a control motor 22 for the worm 21. And a rotation control means configured to rotate the gear case 8 clockwise or counterclockwise in the figure by adjusting the rotation direction of the worm 21 meshed with the worm wheel 20 by the control motor 22. Show.
  • FIG. 6 shows, as a rotation control means for the gear case 8, a projecting plate 15 provided at the upper end of the gear case 8, an arm 23 connected to the projecting plate 15 so as to be able to rotate with each other, and an actuator for controlling the arm 23. 24, and a rotation control means configured to rotate the gear case 8 in the clockwise direction or the counterclockwise direction in the figure by extending and contracting the arm 23 with the control actuator 24.
  • variable valve timing device 1 is attached to each camshaft 12 side of the intake valve side or the exhaust valve side, and the rotation control means of the gear case 8 shown in FIG. An example is shown.
  • a measurement gauge 25 for each rotating means and change the rotation phase of each camshaft 12 on the intake valve side or the exhaust valve side according to the measurement result by the measurement gauge 25.
  • this is effective when used as a test apparatus for measuring output characteristics, fuel consumption, exhaust gas, etc., by changing the opening / closing timing of an intake valve or an exhaust valve.
  • FIG. 8 (A) shows a projecting plate 15 provided on the side surface of the gear case 8 as a rotation control means when the gear case 8 is continuously rotated, and a tip of the projecting plate 15 that can be rotated with respect to each other.
  • An arm 23 to be connected and an eccentric plate 27 that rotatably supports the base end of the arm 23 and rotates synchronously with the timing pulley 9a are provided.
  • the base end of the arm 23 is displaced by the rotation of the eccentric plate 27.
  • the rotation control means is configured to continuously rotate the gear case 8 counterclockwise or clockwise.
  • FIG. 8B shows the support position of the base end of the arm 23 when the gear case 8 is at the fixed reference position ⁇ 1.
  • the gear case 8 can be continuously rotated, and the support position of the base end of the arm 23 when the gear case 8 is at the fixed reference position ⁇ 1 is shown in FIG. If it is possible to adjust each of the positions shown, as shown in FIGS. 9 and 10, the valve operation phases differ depending on the adjusted positions.
  • the gear case 8 is temporarily moved from the fixed reference position ⁇ 1 to ⁇ 2 as shown in FIG. After rotating in the counterclockwise direction by L ⁇ , it is rotated by a large amount in the clockwise direction to rotate to ⁇ 3 by L ⁇ + R ⁇ , and then rotated counterclockwise to return to the fixed reference position ⁇ 1. It is possible to continuously perform a series of rotating operations.
  • valve operation phase in this case changes as shown in the P2 graph in comparison with the P0 graph of FIG. 9 which is the normal valve operation phase, and the valve operation time is changed to the normal valve operation time. It becomes possible to shorten compared with.
  • variable valve timing apparatus 1 is attached to the crankshaft 11 side.
  • the variable valve timing apparatus 1 is provided around the crankshaft 11 as shown in FIG.
  • a second shaft 5 that is spaced apart from and parallel to the first shaft 5, a first variable gear 6 and a second variable gear 7 that are arranged so as to be integrally rotatable on the second shaft 5, and a pivotally supported by the first shaft 2.
  • a gear case 8 serving as an adjusting means.
  • the gear case 8 holds the second shaft 5, and includes the initial gear 3, the rear gear 4, the first variable gear 6, and the second variable gear 7 inside. It is configured to be stored.
  • the first variable gear 6 has a smaller diameter than the second variable gear 7, and the number of teeth of the first variable gear 6 is less than the number of teeth of the second variable gear 7. It shall be set as follows. Therefore, as in the first embodiment, the initial gear 3 has a larger diameter than the rear gear 4.
  • a crank gear 28 that rotates together with the crankshaft 11 is provided on the crankshaft 11 side, and the crank gear 28 and the initial motion gear 3 are engaged with each other, so that the rotation of the crankshaft 11 is engaged with the initial motion gear 3.
  • the rear drive gear 4 and the timing pulley 9a are integrally formed.
  • the timing pulley 9a also rotates at the same time via the timing belt 10 and the timing pulley 9b on the camshaft 12 side. The rotation power is transmitted to the camshaft 12.
  • variable valve timing device 1 Since the operation and effect of the variable valve timing device 1 itself are the same as in the first embodiment, the description of the operation and effect is omitted here, but in this embodiment, the operation around the camshaft 12 side is omitted. This is particularly effective when the mounting space for the variable valve timing device 1 cannot be defined.
  • variable valve timing apparatus does not require complicated control means in the apparatus, so that the structure of the apparatus can be simplified and the cost can be reduced, and the rotational phase of the camshaft with respect to the crankshaft can be reliably and continuously adjusted. It is possible to change not only the opening / closing timing of the valve but also the opening / closing time. Therefore, if this is used for an engine of an automobile for improving output and reducing fuel consumption, it is very advantageous.

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  • 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)
  • Output Control And Ontrol Of Special Type Engine (AREA)
PCT/JP2010/070395 2009-12-07 2010-11-16 可変バルブタイミング装置 WO2011070895A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2010800554036A CN102648336A (zh) 2009-12-07 2010-11-16 可变阀定时装置
US13/509,026 US20120222513A1 (en) 2009-12-07 2010-11-16 Variable valve timing device
DE112010004706T DE112010004706T5 (de) 2009-12-07 2010-11-16 Variable Ventilsteuerung
KR1020127014926A KR20120089337A (ko) 2009-12-07 2010-11-16 가변 밸브 타이밍 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009277676A JP4505546B1 (ja) 2009-12-07 2009-12-07 可変バルブタイミング装置
JP2009-277676 2009-12-07

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WO2011070895A1 true WO2011070895A1 (ja) 2011-06-16

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US (1) US20120222513A1 (zh)
JP (1) JP4505546B1 (zh)
KR (1) KR20120089337A (zh)
CN (1) CN102648336A (zh)
DE (1) DE112010004706T5 (zh)
WO (1) WO2011070895A1 (zh)

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WO2013122921A1 (en) * 2012-02-14 2013-08-22 Eaton Corporation Camshaft phasing device

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US9217382B2 (en) * 2012-03-13 2015-12-22 Ford Global Technologies, Llc Method and system for engine air control
NO20131144A1 (no) 2013-08-27 2015-03-02 Viking Heat Engines As Fremgangsmåte og anordning for vinkelforstilling mellom transmisjonselementer
ES2637951B2 (es) * 2016-04-15 2018-03-07 Amadeo PEREZ FERNANDEZ Sistema de control para motores de combustión interna
CN106949818B (zh) * 2017-05-24 2019-03-26 烟台艾迪精密机械股份有限公司 一种齿轮相位检测工装
CN107605561A (zh) * 2017-09-06 2018-01-19 陆逸钧 一种可变气门正时装置
IT201900016283A1 (it) * 2019-09-13 2021-03-13 Piaggio & C Spa Motore a combustione con dispositivo di variazione della fase delle valvole di un albero a camme

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KR20120089337A (ko) 2012-08-09
CN102648336A (zh) 2012-08-22

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