CN104420918A - Variable Valve Timing Control Device - Google Patents
Variable Valve Timing Control Device Download PDFInfo
- Publication number
- CN104420918A CN104420918A CN201410433388.4A CN201410433388A CN104420918A CN 104420918 A CN104420918 A CN 104420918A CN 201410433388 A CN201410433388 A CN 201410433388A CN 104420918 A CN104420918 A CN 104420918A
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- CN
- China
- Prior art keywords
- rotating member
- slave end
- end rotating
- intermediate member
- camshaft
- 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.)
- Pending
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Classifications
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- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
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- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
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- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
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- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
- F01L2001/34433—Location oil control valves
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- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
-
- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
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- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34483—Phaser return springs
-
- 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
- F01L2303/00—Manufacturing of components used in valve arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
A variable valve timing control device includes a driving side rotation member (1), a driven side rotation member (2), a fluid pressure chamber (4, 41, 42), a first flow path (43) and a second flow path (44) allowing a flow of an operation fluid into and out of the fluid pressure chamber (4, 41, 42), an intermediate member (6) provided between an inner circumferential surface of the driven side rotation member (2) and an outer circumferential surface of a camshaft (10), and a contact portion (A), wherein the intermediate member (6) and the driven side rotation member (2) come in contact with each other at a position between the first flow path (43) and the second flow path (44) when mounting the intermediate member (6) to the camshaft (10).
Description
Technical field
The present invention relates in general to a kind of valve opening/closing timing control device.
Background technique
Known valve opening/closing timing control device, in order to easily change the relative rotation phase of slave end rotating member relative to driving side rotating member, preferably includes the slave end rotating member formed by the lightweight material with low rotatory inertia.Therefore, slave end rotating member is generally formed by the low-intensity material of such as aluminium material.On the other hand, the camshaft be connected with slave end rotating member is generally formed by the high-strength material of such as iron material.Therefore, due to the difference between the coefficient of linear expansion of slave end rotating member and the coefficient of linear expansion of camshaft, the interface between slave end rotating member and camshaft easily produces gap.Be accompanied by this, because the camshaft of high strength directly contacts with low intensive slave end rotating member, slave end rotating member may easily damage.
Especially, when change slave end rotating member extend past slave end rotating member and camshaft relative to the stream of the working fluid of the relative rotation phase of driving side rotating member and generation gap, interface at slave end rotating member and camshaft, because working fluid spills via this gap, therefore can not in due course or be applicable to moment change relative rotation phase exactly.
A kind of known valve opening/closing timing control device is disclosed in JP2012-57578A (hereinafter referred to as patent documentation 1).Valve opening/closing timing control device disclosed in patent documentation 1 is provided with driving side rotating member (casing), slave end rotating member (inner rotator), the fluid pressure chamber limited between driving side rotating member and slave end rotating member and allows working fluid to flow into or the first flow path of effluent fluid pressure chamber and the second stream.This valve opening/closing timing control device also comprise be arranged on described slave end rotating member be connected the intermediate member of described slave end rotating member and described camshaft between inner peripheral surface and the outer circumferential face of described camshaft.The space forming a part for first flow path is limited between described slave end rotating member and described camshaft, and a part for described second stream is formed on described intermediate member.The contacting part that described intermediate member contacts with described slave end rotating member is provided with between described first flow path with described second stream.Slave end rotating member is made up of aluminium material, and intermediate member is made up of iron material.
Valve opening/closing timing control device disclosed in patent documentation 1, because valve opening/closing timing control device comprises the intermediate member being connected slave end rotating member and camshaft between inner peripheral surface and the outer circumferential face of camshaft being arranged on slave end rotating member, the slave end rotating member be therefore made up of aluminium material does not contact with camshaft.Therefore, when camshaft is formed by high-strength material, the slave end rotating member formed by aluminium material can be prevented to be damaged.In addition, because intermediate member is made up of the iron material of coefficient of linear expansion close to the coefficient of linear expansion of the camshaft formed by high-strength material, the interface therefore between intermediate member and camshaft does not produce gap.Therefore, when the stream of working fluid extends past intermediate member and camshaft, working fluid is difficult to spill.But, contact with each other to prevent slave end rotating member and camshaft, intermediate member is arranged between slave end rotating member and camshaft, the inner side of slave end rotating member, consequently, the space be formed between slave end rotating member and camshaft is equivalent to a part for first flow path, and a part for the second stream is arranged on intermediate member.Therefore, under the state in the generation gap, interface between slave end rotating member and intermediate member, first flow path and the second stream communicate with each other via this gap, and working fluid spills and flows into the first and second streams.Therefore, can not in due course or be applicable to moment change the relative rotation phase of slave end rotating member relative to driving side rotating member exactly.Therefore, in order in due course or be applicable to moment change the relative rotation phase of slave end rotating member relative to driving side rotating member exactly, be arranged between first flow path and the second stream, contacting part that intermediate member and slave end rotating member contact with each other on complete cycle, thus prevent working fluid from spilling and flow into first flow path and the second stream.
Valve opening/closing timing control device disclosed in patent documentation 1, by intermediate member by one end of slave end rotating member insert be located at slave end rotating member between inner circumferential and the periphery of camshaft.Therefore, after slave end rotating member and intermediate member are installed to driving side rotating member, when camshaft is installed to valve opening/closing timing control device, intermediate member may easily come off from slave end rotating member.Therefore, the installation process of valve opening/closing timing control device may be complicated.In addition, when intermediate member is press-fit into slave end rotating member, due to the resistance applied when intermediate member is press-fit into slave end rotating member, likely between intermediate member and slave end rotating member, gap is produced.First flow path and the second stream communicate with each other via this gap, cause operation to worsen.
Therefore, need a kind of valve opening/closing timing control device, it prevents slave end rotating member from being damaged by the camshaft be made up of high-strength material, and prevents working fluid from spilling and flow into first flow path and the second stream, simplifies the installation process of valve opening/closing timing control device simultaneously.
Summary of the invention
According to an aspect of the present invention, valve opening/closing timing control device comprises: driving side rotating member, and described driving side rotating member is set to the live axle synchronous rotary with internal-combustion engine, slave end rotating member, described slave end rotating member is arranged on the inner side of described driving side rotating member in the mode coaxial with described driving side rotating member, described slave end rotating member with rotate for the integrated camshaft opening and closing the valve of described internal-combustion engine, fluid pressure chamber, described fluid pressure chamber is limited between described driving side rotating member and described slave end rotating member, first flow path and the second stream, described first flow path and the second stream allow working fluid flow into and flow out described fluid pressure chamber, thus change the relative rotation phase of described slave end rotating member relative to described driving side rotating member between most advanced angle phase place and most retardation angle phase place, intermediate member, between the inner peripheral surface that described intermediate member is arranged on described slave end rotating member and the outer circumferential face of described camshaft, described intermediate member connects described slave end rotating member and described camshaft, and contacting part, at described contacting part place, under the state that the space of a part forming described first flow path is limited between described slave end rotating member and described camshaft and described intermediate member comprises a part for described second stream, after being coordinated by press-in described intermediate member be installed to described slave end rotating member, after described intermediate member and described slave end rotating member are installed to described driving side rotating member, when described intermediate member is installed to described camshaft, described intermediate member and the position of described slave end rotating member between described first flow path and described second stream contact with each other.
According to said structure of the present invention, after described intermediate member is press-fit to described slave end rotating member, after described intermediate member and described slave end rotating member are installed to described driving side rotating member, when described intermediate member is installed to described camshaft, described intermediate member contacts between described first flow path with described second stream with described slave end rotating member.Therefore, when intermediate member and slave end rotating member are installed to driving side rotating member, are coordinated by press-in, intermediate member is arranged in slave end rotating member.Therefore, do not need to be bonded by jointing material or by the magnetic-adsorption of magnet, by the frictional force applied between slave end rotating member and intermediate member before slave end rotating member and intermediate member are arranged on camshaft, prevent intermediate member from coming off from slave end rotating member.Therefore, after slave end rotating member and intermediate member are installed to driving side rotating member, prevent intermediate member before camshaft is installed to intermediate member from coming off from slave end rotating member.
According to said structure of the present invention, prevent slave end rotating member from being damaged by the camshaft be made up of high-strength material.Be accompanied by this, while adopting the structure preventing working fluid from spilling and to flow into first flow path and the second stream, simplify installation process.
According to a further aspect in the invention, valve opening/closing timing device also comprises the control valve of the radially inner side being arranged on described intermediate member, and described control valve controls described working fluid and flows into and flow out described fluid pressure chamber.
According to said structure of the present invention, with control valve is arranged on camshaft outside situation compared with, working fluid flow into and effluent fluid pressure chamber stream shortening.Therefore, it is possible to control valve of the present invention is installed to less space, the operation forming stream can be reduced simultaneously.
According to a further aspect in the invention, described intermediate member is press-fit into a part for the inwall of described slave end rotating member.
According to said structure of the present invention, can with less man-hour, by the dimensioned intermediate member of processed part reduction.
According to another aspect of the invention, described intermediate member be press-fit into the inwall of described slave end rotating member along on the multiple positions separated at equal intervals relative to the circumferencial direction of described axis.
According to said structure of the present invention, can with less man-hour, dimensioned intermediate member that processed part is reduced further.
According to a further aspect in the invention, described intermediate member is only coupled to the part between the part forming described second stream and the described contacting part of described inwall.
According to said structure of the present invention, can with less man-hour, by the dimensioned intermediate member of processed part reduction.
According to a further aspect in the invention, described slave end rotating member comprises multiple press-in auxiliary section, the plurality of press-in auxiliary section arranges brokenly along the circumferencial direction of described slave end rotating member and contacts with described intermediate member when being press-fit to described intermediate member, further, shorter than the length from described inwall to the center of described slave end rotating member to the length at the center of described slave end rotating member from described press-in auxiliary section.
According to said structure of the present invention, can with less man-hour, dimensioned intermediate member that processed part is reduced further.
Accompanying drawing explanation
By the detailed description of carrying out referring to accompanying drawing, of the present inventionly above-mentioned will become more obvious with other characteristic sum characteristic, wherein:
Fig. 1 is the integrally-built sectional view of the valve opening/closing timing control device illustrated according to the first mode of execution disclosed herein;
Fig. 2 is the sectional view of the valve opening/closing timing control device cut open along the line II-II of Fig. 1;
Fig. 3 is the detailed drawing of the control fuel tap when controlling the slave end rotating member relative rotation phase relative to driving side rotating member to reach advance angle position;
Fig. 4 is the detailed drawing of the control fuel tap when controlling the slave end rotating member relative rotation phase relative to driving side rotating member to reach retardation angle position;
Fig. 5 is the perspective view of the exploded of the structure that valve opening/closing timing control device is shown;
Fig. 6 is the integrally-built sectional view of the valve opening/closing timing control device illustrated according to the second mode of execution;
Fig. 7 is the partial sectional view of the structure of the valve opening/closing timing control device illustrated according to the 3rd mode of execution.
Embodiment
Below with reference to accompanying drawing to for controlling or regulating the mode of execution of the valve opening/closing timing control device of the opening/closing timing of the suction valve of mobile engine to be described.
Referring to figs. 1 through Fig. 5, the first mode of execution of valve opening/closing timing control device of the present invention is described.
As depicted in figs. 1 and 2, valve opening/closing timing control device comprises driving side rotating member 1 (casing) and slave end rotating member 2 (inner rotator).The driving side rotating member 1 of aluminum alloy rotates with the crankshaft-synchronous of mobile engine.The inner side that the slave end rotating member 2 of aluminum alloy is arranged on driving side rotating member 1 makes it coaxial with driving side rotating member 1.Slave end rotating member 2 rotates integrally with the camshaft 10 suction valve of motor being carried out to opening and closing.
Slave end rotating member 2 can be supported with the relative rotation by driving side rotating member 1.Camshaft 10 and camshaft main body 10a and steel control fuel tap bolt 10b or steel OCV bolt 10b are coaxially arranged.Steel OCV bolt 10b is arranged in slave end rotating member 2 coaxially, and is threadedly engaged and is fixed to camshaft main body 10a.Mobile engine is equivalent to internal-combustion engine, and bent axle is equivalent to the live axle of internal-combustion engine.
Rotating member 6 in the middle of the steel as intermediate member is provided with between the inner peripheral surface and the outer circumferential face of OCV bolt 10b of slave end rotating member 2.Middle rotating member 6 inserts coaxially and is press-fit to slave end rotating member 2 and makes it be arranged in slave end rotating member 2 from the direction of camshaft main body 10a.The rotation of slave end rotating member 2 is delivered to OCV bolt 10b by columnar middle rotating member 6.OCV bolt 10b is arranged between slave end rotating member 2 and middle rotating member 6, and is threadedly engaged and is fixed to an end of camshaft main body 10a.Middle rotating member 6 connects slave end rotating member 2 and camshaft 10.Camshaft main body 10a is used as the running shaft of the cam of the opening and closing of the suction valve controlling or regulate motor.Camshaft main body 10a and slave end rotating member 2, middle rotating member 6 and OCV bolt 10b rotate integrally.Camshaft main body 10a is rotatably mounted the cylinder head of motor.
As shown in Figure 1, driving side rotating member 1 is arranged integratedly with header board 11, external rotor 12 and rear plate 13.Header board 11 is arranged on the opposition side of camshaft main body 10a relative to middle rotating member 6.Slave end rotating member 2 is covered by external rotor 12.Rear plate 13 is provided with timing sprocket 15 integratedly.Slave end rotating member 2 is accommodated in driving side rotating member 1, limits fluid pressure chamber 4 between driving side rotating member 1 and slave end rotating member 2.
As the crankshaft rotates, rotating power is passed to timing sprocket 15 via power transfer member 101.Driving side rotating member 1 rotates along the sense of rotation S shown in Fig. 2.In response to the rotation of driving side rotating member 1, slave end rotating member is driven to rotate along sense of rotation S.Therefore, camshaft 10 rotates, and the suction valve pushing away motor under being arranged on the cam on camshaft main body 10a makes this valve open.
As shown in Figure 2, multiple protuberances 14 are arranged on the inner side of external rotor 12, outstanding and separate along sense of rotation S to radially inner side.Therefore, fluid pressure chamber 4 is set between slave end rotating member 2 and external rotor 12.Protuberance 14 plays function as the braking part of the outer circumferential face relative to slave end rotating member 2.Slave end rotating member 2 outer circumferential face in the part of fluid pressure chamber 4, be respectively arranged with protuberance 21.Fluid pressure chamber 4 is divided into the advance angle room 41 as fluid pressure chamber and the retardation angle room 42 as fluid pressure chamber by protuberance 21 along sense of rotation S.According to the present embodiment, be provided with four fluid pressure chamber 4, but this structure is not limited thereto.
Oil as working fluid is supplied by relative to advance angle room 41 and retardation angle room 42 and discharges, or is blocked and supplies relative to advance angle room 41 and retardation angle room 42 and discharge, thus oil pressure is applied to protuberance 21.Therefore, make slave end rotating member 2 relative to the relative rotation phase of driving side rotating member 1 along advance angle direction or the change of retardation angle direction, or this relative rotation phase is remained on predetermined phase place.The direction that the volume that advance angle direction is defined as advance angle room 41 increases, and use advance angle direction S1 (as the first sense of rotation) to represent in fig. 2.The direction that the volume that retardation angle direction is defined as retardation angle room 42 increases, and use retardation angle direction S2 (as the second sense of rotation) to represent in fig. 2.The relative rotation phase when volume of advance angle room 41 is maximum is defined as most advanced angle phase place, and the relative rotation phase when volume of retardation angle room 42 is maximum is defined as most retardation angle phase place.
Valve opening/closing timing control device comprises locking framework 8, locking framework 8 by slave end rotating member 2 relative to the relative rotation phase locking of driving side rotating member 1 or the predetermined locking phase that is held in place between most advanced angle phase place and most retardation angle phase place.Under the state that oil pressure is unstable immediately after motor just starts, by locking or keeping relative rotation phase, suitably maintain the rotatable phase of camshaft 10 relative to bent axle, and motor can stably can rotate.
As shown in Figure 2, locking component 81 is arranged vertically movably.Locking component 81 by under utilizing biasing member to be maintained at the state engaged with the locking slot be arranged on header board 11 or rear plate 13, and is maintained at lock state or hold mode.Locking channel 82 to be arranged on slave end rotating member 2 and to connect locking framework 8 and advance angle oil circuit 43 (as first flow path).When carrying out advance angle and controlling to make slave end rotating member 2 be shifted along advance angle direction S1 relative to the relative rotation phase of driving side rotating member 1, oil pressure is applied to locking framework 8.Consequently, locking component 81, against the bias force applied by biasing member, exits from locking slot, thus unlocking state.
As shown in Figure 1, OCV 51 is used as control valve and controls or regulate oil phase for the supply of fluid pressure chamber 4 and discharge.OCV 51 and camshaft 10 are coaxially arranged, and are arranged on the radially inner side of middle rotating member 6.The spring 53 that OCV 51 comprises sleeve 52, make sleeve 52 biased and the o 54 of drive spool 52.Sleeve 52 is accommodated in the holding space 5a of the end being arranged on OCV bolt 10b, and can slide along axis X in holding space 5a.O 54 adopts known structure.
Spring 53 is arranged on the inside of holding space 5a on the position of axially inner side being positioned at holding space 5a, and makes sleeve 52 biased along the direction contrary with camshaft main body 10a all the time.Once power to o 54, then the pushing pin 54a be arranged on o 54 pushes the bar portion 52a be arranged on sleeve 52.Consequently, sleeve 52 slides towards camshaft main body 10a against the bias force of spring 53.OCV 51 is configured to regulated by the dutycycle regulated or control the electric power being supplied to o 54 or controlled the position of sleeve 52.In addition, by delivery that electronic control unit or ECU control OCV 51 supply to o 54.
As shown in Figure 5, cylindric middle rotating member 6 is arranged on the inner side of slave end rotating member 2, particularly, is arranged on the position (right side of Fig. 5) closer to camshaft main body 10a.Arrange washer member 7 in the inner side of driving side rotating member 1 and slave end rotating member 2, washer member 7 is arranged on the opposition side (left side of Fig. 5) of camshaft main body 10a relative to middle rotating member 6.Middle rotating member 6 and washer member 7 are arranged on the inner side of slave end rotating member 2.As shown in Figure 1 and Figure 5, under the state that slave end rotating member 2 is covered by driving side rotating member 1, be threadedly engaged and be fixed to camshaft main body 10a in each center hole OCV bolt 10b being arranged on washer member 7, slave end rotating member 2 and middle rotating member 6.As shown in Figure 1, middle rotating member 6 and slave end rotating member 2 contact with each other along whole circumference in the axial direction between advance angle oil circuit 43 and retardation angle oil circuit 44 (as the second stream), and comprise contacting part A.Therefore, after middle rotating member 6 and slave end rotating member 2 are installed to driving side rotating member 1, when middle rotating member 6 is installed to camshaft 10, in the middle of on the position between advance angle oil circuit 43 with retardation angle oil circuit 44, rotating member 6 contacts with slave end rotating member 2.
Washer member 7 increases the fastening force of OCV bolt 10b relative to camshaft main body 10a.Torsion spring 9 is mounted to the position between washer member 7 and header board 11, and makes washer member 7 biased to make slave end rotating member 2 rotate along advance angle direction S1 relative to driving side rotating member 1 with header board 11.
The external diameter of middle rotating member 6 is set to the internal diameter of the cylindrical inner 2a (as inwall) slightly larger than slave end rotating member 2.Slave end rotating member 2 is inserted into and under the state being positioned at the inner side of slave end rotating member 2 along axis X, auxiliary section 20 makes the whole outer circumferential face of middle rotating member 6 be coupled in the whole inner peripheral surface of cylindrical inner 2a at middle rotating member 6.Therefore, middle rotating member 6, by being press-fit in the slave end rotating member 2 at auxiliary section 20 place, is installed to slave end rotating member 2 integratedly.
Auxiliary section 20 is set to such stress level relative to the cooperation stress level of slave end rotating member 2: when being inserted in the direction from header board 11 and the OCV bolt 10b extending through washer member 7, slave end rotating member 2 and middle rotating member 6 is threadedly engaged and is fixed to camshaft main body 10a, make middle rotating member 6 move forcibly and contact with slave end rotating member 2.Therefore, the whole circumference of middle rotating member 6 between advance angle oil circuit 43 with retardation angle oil circuit 44 reliably contacts with slave end rotating member 2, thus prevents oil leakage from going out and flow into advance angle oil circuit 43 and retardation angle oil circuit 44.
When slave end rotating member 2 and middle rotating member 6 are installed to driving side rotating member 1, frictional force is to a certain degree applied to the auxiliary section 20 between slave end rotating member 2 and middle rotating member 6.Then, frictional force as resistance, and prevents middle rotating member 6 from coming off from slave end rotating member 2, till after middle rotating member 6 being installed to slave end rotating member 2, camshaft 10 is connected with middle rotating member 6.
As shown in Figure 1, be stored in oil in food tray 61 by driven mechanical type food tray 62 is drawn in response to the transmission of the rotary driving force of bent axle, and be fed into supply oil circuit 45.OCV 51 controls oil phase for supply, the discharge of advance angle oil circuit 43 and retardation angle oil circuit 44 or block the supply of oil, the action of discharge.
Advance angle oil circuit 43 is used as the oil circuit of the relative rotation phase changing driving side rotating member 1 and slave end rotating member 2 along advance angle direction S1.Retardation angle oil circuit 44 is used as the oil circuit of the relative rotation phase changing driving side rotating member 1 and slave end rotating member 2 along retardation angle direction S2.Therefore, advance angle oil circuit 43, retardation angle oil circuit 44 and supply oil circuit 45 are equivalent to, in order to change the relative rotation phase of slave end rotating member 2 relative to driving side rotating member 1 between most advanced angle phase place and most retardation angle phase place, optionally supply and discharge the stream of oil relative to fluid pressure chamber 4.Advance angle oil circuit 43 is equivalent to first flow path, and retardation angle oil circuit 44 is equivalent to the second stream.
As depicted in figs. 1 and 2, the advance angle oil circuit 43 be communicated with advance angle room 41 is provided with the first through hole 43a, the first ring-type oil circuit 43b and the second through hole 43.First through hole 43a is arranged on OCV bolt 10b.First ring-type oil circuit 43b is arranged between OCV bolt 10b and slave end rotating member 2.Second through hole 43c is arranged on slave end rotating member 2.Therefore, form the space being equivalent to the first ring-type oil circuit 43b of a part for advance angle oil circuit 43 to be limited between slave end rotating member 2 and OCV bolt 10b.
The retardation angle oil circuit 44 be communicated with retardation angle room 42 is provided with third through-hole 44a, the second ring-type oil circuit 44b, fourth hole 44c and fifth hole 44d.Third through-hole 44a is arranged on OCV bolt 10b.Second ring-type oil circuit 44b is arranged between OCV bolt 10b and middle rotating member 6, on the inner peripheral surface of middle rotating member 6.Fourth hole 44c is arranged on middle rotating member 6.Fifth hole 44d is arranged on slave end rotating member 2.Therefore, the second ring-type oil circuit 44b and the fourth hole 44c that form a part for retardation angle oil circuit 44 are arranged on middle rotating member 6.
The supply oil circuit 45 optionally oil being supplied to advance angle oil circuit 43 and retardation angle oil circuit 44 is provided with the first path 45a, alternate path 45b, the 3rd annulus 45c and the 6th through hole 45d.First path 45a is arranged on camshaft main body 10a.Alternate path 45b is arranged on middle rotating member 6.3rd annulus 45c is arranged between middle rotating member 6 and OCV bolt 10b, on middle rotating member 6.6th through hole 45d is arranged on OCV bolt 10b.
Therefore, middle rotating member 6 comprises the second ring-type oil circuit 44b, fourth hole 44c, alternate path 45b and the 3rd annulus 45c, and the second ring-type oil circuit 44b, fourth hole 44c, alternate path 45b and the 3rd annulus 45c are the parts supplying and discharge oily advance angle oil circuit 43, retardation angle oil circuit 44 and supply oil circuit 45 relative to fluid pressure chamber 4.
As shown in Figure 1, the oil flowed in supply oil circuit 45 flows in the annular slot 52b be arranged on the outer circumferential face of sleeve 52.Under the state that annular slot 52b is not neither also communicated with third through-hole 44a with the first through hole 43a be formed on OCV bolt 10b, oil is not supplied to advance angle room 41 and retardation angle room 42.In this condition, because the first through hole 43a is set to not be communicated with the 7th through hole 52c be arranged on sleeve 52, the oil therefore in advance angle room 41 is not discharged to the outside of valve opening/closing timing control device via advance angle oil circuit 43, the 7th through hole 52c, holding space 5a and tap hole 52d.In addition, in this condition, third through-hole 44a is set to not be communicated with holding space 5a, and the oil therefore in retardation angle room 42 is not discharged to the outside of valve opening/closing timing control device via retardation angle oil circuit 44, holding space 5a and tap hole 52d.Namely, once electric power o 54 being supplied to prearranging quatity to control OCV 51 so that sleeve 52 is kept in the position shown in the figure 1, because oil phase is blocked for the supply of advance angle room 41 and retardation angle room 42 and discharge, therefore keep slave end rotating member 2 relative to the relative rotation phase of driving side rotating member.
When o 54 is not energized, sleeve 52 is remained on the position shown in Fig. 3 by the bias force of spring 53.In this state, the annular slot 52b of sleeve 52 is communicated with the first through hole 43a of OCV bolt 10b, and is not communicated with third through-hole 44a.Meanwhile, third through-hole 44a is communicated with holding space 5a.Therefore, the oil being fed into supply oil circuit 45 is fed into advance angle room 41 via advance angle oil circuit 43, and the oil in retardation angle room 42 is discharged to the outside of valve opening/closing timing control device via retardation angle oil circuit 44, holding space 5a and tap hole 52d.In this case, by being applied to the oil pressure of advance angle room 41, relative rotation phase is shifted along advance angle direction S1.
When o 54 is at utmost energized, against the bias force of spring 53, sleeve 52 is maintained at the position shown in Fig. 4.In this state, the annular slot 52b of sleeve 52 is communicated with the third through-hole 44a of OCV bolt 10b, is not communicated with the first through hole 43a.Meanwhile, the first through hole 43a is communicated with the 7th through hole 52c of sleeve 52.Therefore, the oil being supplied to supply oil circuit 45 is fed into retardation angle room 42 via retardation angle oil circuit 44, and the oil in advance angle room 41 is discharged to the outside of valve opening/closing timing control device via advance angle oil circuit 43, the 7th through hole 52c, holding space 5a and tap hole 52d.In this case, by being applied to the oil pressure of retardation angle room 42, relative rotation phase is shifted along retardation angle direction S2.
With reference to Fig. 6, the second mode of execution of the present invention is described.In this second embodiment, the auxiliary section 20 of middle rotating member 6 is press-fit into the part in the direction along axis X of cylindrical inner 2a, and particularly, this part is the part only between the part forming retardation angle oil circuit 44 and contacting part A.The outer circumferential face that plate 13 is outstanding more backward compared with slave end rotary component 2 of middle rotating member 6 and rear plate 13 are with the mode close contact that can relatively rotate.
That is, be only press-fit in auxiliary section 20 cylindrical inner 2a under the state being formed with the part between the part of retardation angle oil circuit 44 and contacting part A, middle rotating member 6 is at auxiliary section 20 and contacting part A and slave end rotating member 2 close contact.Therefore, prevent advance angle oil circuit 43 and retardation angle oil circuit 44 intercommunicated via the interface phase between middle rotating member 6 and slave end rotating member 2.
On the other hand, at middle rotating member 6 (particularly, the part that plate 13 is outstanding more rearward compared with forming the part of retardation angle oil circuit 44) outer circumferential face and rear plate 13 between be formed with gap state under, oil likely escapes to the outside of valve controller for opening and closing via the retardation angle oil circuit 44 extending past middle rotating member 6 and slave end rotating member 2.Therefore, the outer circumferential face of middle rotating member 6 is set to can close contact with the relative rotation with rear plate 13, thus prevents oil from spilling via retardation angle oil circuit 44.Other structure except said structure is identical with the structure of the first mode of execution.
With reference to Fig. 7, the 3rd mode of execution of the present invention is described.With illustrate the second mode of execution structure Fig. 6 in the same manner as, according to the 3rd mode of execution, middle rotating member 6 (particularly, the part that plate 13 is outstanding more rearward compared with slave end rotating member 2) outer circumferential face and rear plate 13 can close contact with the relative rotation, thus prevent from oilyly escaping to outside via retardation angle oil circuit 44.In the third embodiment, in order to be coupled to the cylindrical inner 2a of slave end rotating member 2 and the multiple auxiliary sections 200 be formed on the outer circumferential face of middle rotating member 6 are press-fit into multiple parts of cylindrical inner 2a, described multiple part is arranged at equal intervals along the circumferential surface of cylindrical inner 2a.
That is, be pressed into auxiliary section 20a and there is identical width, and along the circumferential direction such as separate at equal intervals with three parts on the cylindrical inner 2a of slave end rotating member 2.Shorter than the length from cylindrical inner 2a to the center of middle rotating member 6 to the length at the center of slave end rotating member 2 from the internal surface of press-in auxiliary section 20a.Middle rotating member 6 comprises and separates at equal intervals and be press-fit to the auxiliary section 200 being pressed into auxiliary section 20a.
According to the 3rd mode of execution, such as, three outer radius portion 6a of middle rotating member 6 are reliably press-fit to cylindrical inner 2a.Therefore, middle rotating member 6 and slave end rotating member 2 are accurately coaxially arranged, rotating member 6 by the size of the processed part coordinated for press-in in the middle of simultaneously reducing.
Alternatively, auxiliary section 20 can be included in multiple press-in auxiliary section 20a that cylindrical inner 2a along the circumferential direction separates unequal interval.That is, according to the 3rd mode of execution, the circumferencial direction that slave end rotating member 2 comprises along slave end rotating member 2 is arranged and the multiple press-in auxiliary section 20a contacted with middle rotating member 6 when being press-fit to middle rotating member 6 brokenly.Shorter than the length from cylindrical inner 2a to the center of slave end rotating member 2 from the length at press-in auxiliary section to the center of slave end rotating member 2.
Alternatively, according to valve opening/closing timing control device of the present invention, control the opening/closing timing of outlet valve.
Alternatively, according to valve opening/closing timing control device of the present invention, the internal-combustion engine for automobile and other purposes can be applied to.
Claims (6)
1. a valve opening/closing timing control device, comprising:
Driving side rotating member (1), described driving side rotating member is set to the live axle synchronous rotary with internal-combustion engine;
Slave end rotating member (2), described slave end rotating member is arranged on the inner side of described driving side rotating member (1) in the mode coaxial with described driving side rotating member (1), described slave end rotating member (2) with rotate integrally for the camshaft (10) opening and closing the valve of described internal-combustion engine;
Fluid pressure chamber (4,41,42), described fluid pressure chamber is limited between described driving side rotating member (1) and described slave end rotating member (2);
First flow path (43) and the second stream (44), described first flow path and described second stream allow working fluid flow into and flow out described fluid pressure chamber (4,41,, thus change the relative rotation phase of described slave end rotating member (2) relative to described driving side rotating member (1) between most advanced angle phase place and most retardation angle phase place 42);
Intermediate member (6), between the inner peripheral surface that described intermediate member is arranged on described slave end rotating member (2) and the outer circumferential face of described camshaft (10), described intermediate member (6) connects described slave end rotating member (2) and described camshaft (10); And
Contacting part (A), at described contacting part place, under the state that the space of a part forming described first flow path (43) is limited between described slave end rotating member (2) and described camshaft (10) and described intermediate member (6) comprises a part for described second stream (44), after being coordinated by press-in described intermediate member (6) be installed to described slave end rotating member (2), after described intermediate member (6) and described slave end rotating member (2) are installed to described driving side rotating member (1), when described intermediate member (6) is installed to described camshaft (10), described intermediate member (6) and the position of described slave end rotating member (2) between described first flow path (43) and described second stream (44) contact with each other.
2. valve opening/closing timing control device according to claim 1, also comprises:
Be arranged on the control valve (51) of the radially inner side of described intermediate member (6), described control valve (51) controls described working fluid and flows into and flow out described fluid pressure chamber (4,41,42).
3. valve opening/closing timing control device according to claim 1 and 2, wherein, described intermediate member (6) is press-fit into a part for the inwall (2a) of described slave end rotating member (2).
4. valve opening/closing timing control device according to claim 3, wherein, described intermediate member (6) be press-fit into the described inwall (2a) of described slave end rotating member (2) along on the multiple positions separated at equal intervals relative to the circumferencial direction of axis (X).
5. valve opening/closing timing control device according to claim 3, wherein, described intermediate member (6) is only coupled to the part between part and the contacting part (A) of described inwall (2a) being positioned at and forming described second stream (44).
6. valve opening/closing timing control device according to claim 3, wherein,
Described slave end rotating member (2) comprises multiple press-in auxiliary section (20a), described multiple press-in auxiliary section is arranged brokenly along the circumferencial direction of described slave end rotating member (2), described multiple press-in auxiliary section (20a) contacts with described intermediate member (6) when being press-fit to described intermediate member (6)
Shorter than the length from described inwall (2a) to the center of described slave end rotating member (2) to the length at the center of described slave end rotating member (2) from described press-in auxiliary section (20a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013177121A JP2015045282A (en) | 2013-08-28 | 2013-08-28 | Valve opening/closing timing control device |
| JP2013-177121 | 2013-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104420918A true CN104420918A (en) | 2015-03-18 |
Family
ID=51390072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410433388.4A Pending CN104420918A (en) | 2013-08-28 | 2014-08-28 | Variable Valve Timing Control Device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20150059670A1 (en) |
| EP (1) | EP2843201A1 (en) |
| JP (1) | JP2015045282A (en) |
| CN (1) | CN104420918A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108368755A (en) * | 2015-12-28 | 2018-08-03 | 株式会社三国 | Valve timing change device |
| CN108474274A (en) * | 2015-12-28 | 2018-08-31 | 株式会社三国 | Valve timing change device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10041384B2 (en) * | 2016-05-31 | 2018-08-07 | Gm Global Technology Operations | Control valve |
| JP6954764B2 (en) * | 2017-05-12 | 2021-10-27 | 株式会社デンソー | Valve timing adjuster |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4247624B2 (en) * | 2004-12-28 | 2009-04-02 | 株式会社デンソー | Valve timing adjustment device |
| JP5585832B2 (en) * | 2010-09-10 | 2014-09-10 | アイシン精機株式会社 | Valve timing control device |
| JP5321925B2 (en) * | 2011-02-18 | 2013-10-23 | アイシン精機株式会社 | Valve timing control device |
| JP5321926B2 (en) * | 2011-02-18 | 2013-10-23 | アイシン精機株式会社 | Valve timing control device |
| JP5426626B2 (en) * | 2011-09-03 | 2014-02-26 | 本田技研工業株式会社 | Variable valve opening characteristics internal combustion engine |
-
2013
- 2013-08-28 JP JP2013177121A patent/JP2015045282A/en active Pending
-
2014
- 2014-08-14 US US14/459,766 patent/US20150059670A1/en not_active Abandoned
- 2014-08-25 EP EP14182160.3A patent/EP2843201A1/en not_active Withdrawn
- 2014-08-28 CN CN201410433388.4A patent/CN104420918A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108368755A (en) * | 2015-12-28 | 2018-08-03 | 株式会社三国 | Valve timing change device |
| CN108474274A (en) * | 2015-12-28 | 2018-08-31 | 株式会社三国 | Valve timing change device |
| CN108474274B (en) * | 2015-12-28 | 2020-09-22 | 株式会社三国 | Valve timing changing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015045282A (en) | 2015-03-12 |
| US20150059670A1 (en) | 2015-03-05 |
| EP2843201A1 (en) | 2015-03-04 |
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Application publication date: 20150318 |
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| WD01 | Invention patent application deemed withdrawn after publication |