CN106837456A - Vvt - Google Patents
Vvt Download PDFInfo
- Publication number
- CN106837456A CN106837456A CN201710189289.XA CN201710189289A CN106837456A CN 106837456 A CN106837456 A CN 106837456A CN 201710189289 A CN201710189289 A CN 201710189289A CN 106837456 A CN106837456 A CN 106837456A
- Authority
- CN
- China
- Prior art keywords
- oilhole
- valve
- hole
- hydraulic valve
- pedestal
- 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
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
- F01L1/3442—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
- F01L2001/34426—Oil control valves
- F01L2001/3443—Solenoid driven oil control valves
Abstract
The present invention provides VVT, including：Electromagnet, hydraulic valve and camshaft adjuster；The electromagnet include be coaxially disposed core assembly, pedestal, every magnetic inner cover and electromagnetic coil portion；The electromagnetic coil portion includes skeleton and coil, and the skeleton is set in described every outside magnetic inner cover, and the coil is wrapped on skeleton；The core assembly and the pedestal are located at described every in magnetic inner cover vertically；The core assembly includes valve element and the push rod being connected on valve element；The pedestal is the tapering with male cone (strobilus masculinus) near one end of the valve element, and is provided with the resettlement section for housing the valve element, and the axle center of the pedestal is additionally provided with guide through hole, and the push rod is slidably disposed in the guide through hole.The VVT that the present invention is provided operates steadily, and reliability is high.
Description
Technical field
The present invention relates to automotive engine applications, and in particular to the VVT of engine.
Background technology
VVT (VVT), is exactly under specific engine operating condition, to adjust convex by camshaft adjuster
The phase of wheel shaft, control IO Intake Valve Opens angular advance adjusts intake and exhaust amount and moment with postponing and changes valve overlap
Size realizes increasing charge and efficiency, preferably organizes intake swirl, adjusts cylinder-firing pressure and residual gas
Measure to obtain the improvement of the combination properties such as engine power, moment of torsion, discharge, fuel economy, comfortableness, so as to solve tradition
The technical contradiction mutually restricted between the property indices of fixed port timing engine.
The valve element of magnetic valve is moved with the change of stream of powering in VVT.The original of electromagnetism valve function
Reason is exactly that an electromagnet is filled on valve element, and when electromagnet coil power, valve element is picked up, valve is opened, when not having electricity, valve element
It is automatically switched off.Its Main Function is the amount that regulation control enters cam phase adjuster chamber and delayed chamber machine oil in advance.It is existing
Can realize the opening and closing of valve for the electromagnetic hydraulic valve in VVT systems, but open with close it is alternate with each other during it is uneven
Surely, engine has obvious interim card when switching over, and easily causes engine damage, while reducing operational comfort.
The content of the invention
For defect of the prior art, the present invention provides one kind and operates steadily reliable VVT.
The present invention provides VVT, including：Electromagnet, hydraulic valve and camshaft adjuster；
The electromagnet include be coaxially disposed core assembly, pedestal, every magnetic inner cover and electromagnetic coil portion；The electromagnetic wire
Circle portion includes skeleton and coil, and the skeleton is set in described every outside magnetic inner cover, and the coil is wrapped on skeleton；The valve element
Component and the pedestal are located at described every in magnetic inner cover vertically；The core assembly includes valve element and the top being connected on valve element
Bar；The pedestal is the tapering with male cone (strobilus masculinus) near one end of the valve element, and is provided with the receipts for housing the valve element
Appearance portion, the axle center of the pedestal is additionally provided with guide through hole, and the push rod is slidably disposed in the guide through hole；
The hydraulic valve include valve body and can adjusting position vertically reversing bar, one end of the reversing bar and the top
Bar is against the other end is connected by stage clip with the inwall of the valve body；The hydraulic valve is provided with oil inlet, oil return opening, the first oil
Hole and the second oilhole, when reversing bar is axially moveable, the hydraulic valve can be in the first working condition, the second working condition and the 3rd
Between working condition switch, and the hydraulic valve be in the first working condition when, the oil inlet is connected with first oilhole,
The oil return opening is connected with second oilhole；When the hydraulic valve is in the second working condition, the oil inlet and described the
Two oilholes are connected, and the oil return opening is connected with first oilhole；When the hydraulic valve is in three working conditions, the oil-feed
Any two in hole, oil return opening, the first oilhole and the second oilhole is not connected.
The camshaft adjuster to be provided with and shift to an earlier date oilhole and for making camshaft phase for shift to an earlier date camshaft phase
Delayed delayed oilhole；First oilhole is connected with the oilhole in advance, and second oilhole is connected with the delayed oilhole.
Further, the frustoconical bevel angle in the tapering is 30 ° to 60 °.
Further, the range that the valve element is axially moveable is between 3 millimeters to 6 millimeters.
Further, the center on the camshaft adjuster edge is axially disposed positioning through hole, and the hydraulic valve is set
In the positioning through hole；First oilhole and the second oilhole are axially disposed within valve body along the hydraulic valve, described to shift to an earlier date
Oilhole and the delayed oilhole are axially arranged on the inwall of the positioning through hole.
Further, the hole wall of the positioning through hole is axially disposed first annular groove and the second annular groove, described to carry
Preceding oilhole is arranged in the first annular groove, and the delayed oilhole is arranged in second annular groove.
Further, first oilhole and second oilhole are the multiple along the valve body circumferentially.
Further, the valve body is provided with bolt head near one end of electromagnet, and the other end is provided with convex for connecting
The external screw thread of wheel shaft.
Further, the electromagnet and hydraulic valve are detachably connected.
The present invention that the present invention is provided provides VVT, including：The regulation of electromagnet, hydraulic valve and camshaft
Device, operation principle is as follows：
Reversing bar is axially moveable by the push rod of electromagnet and the collective effect of spring, so that the hydraulic valve can
Switch between the first working condition, the second working condition and the 3rd working condition, oil inlet is adjusted with camshaft when selectable
The oilhole in advance of section device connect with delayed oilhole, so that the oil mass in entrance camshaft adjuster chamber and delayed chamber in advance is adjusted, from
And the phase of camshaft is adjusted, and the unlatching of valve is shifted to an earlier date or delayed, complete valve timing regulation.
The present invention provide VVT in, electromagnet include be coaxially disposed core assembly, pedestal, every magnetic
Inner cover and electromagnetic coil portion.The core assembly includes valve element and the push rod being connected on valve element.After coil electricity, valve element and base
Seat is magnetized, and pole orientation is consistent, and the pole orientation of valve element and the opposite one end of pedestal is conversely, so as to mutually inhale and valve element
Push rod is driven to be moved to pedestal direction.In the application, the pedestal is the tapering with male cone (strobilus masculinus) near one end of the valve element,
The magnetic line of force that the surface of valve element and pedestal is formed by tapering male cone (strobilus masculinus), from valve element smooth it is excessive onto pedestal, magnetic resistance is small,
Magnetic force is uniform, it is therefore prevented that Caton phenomenon when valve element is acted, and then folding conversion is more smooth to obtain magnetic valve, and changeable air valve is just
When system it is more steady reliable, prevent due to engine pause and transition in rhythm or melody caused by electromagnet, or even engine is along bad, while improving easypro
Adaptive.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described.In all of the figs, similar element
Or the general reference by being similar in part is identified.In accompanying drawing, each element or part might not draw according to actual ratio.
The structural representation of the VVT that Fig. 1 is provided for one embodiment of the invention；
Fig. 2 is structural representation of the hydraulic valve on camshaft adjuster in one embodiment of the invention；
Fig. 3 is the axial sectional view of electromagnet in one embodiment of the invention；
Fig. 4 is the structural representation in Fig. 3 every magnetic Inner covers；
Fig. 5 is the structural representation of pedestal in Fig. 3；
Fig. 6 is the corresponding relation figure of the push rod displacement that applicant's experiment draws and electromagnetic force；
Fig. 7 is the structural representation of hydraulic valve in an embodiment；
Fig. 8 is the A-A sectional views of hydraulic valve in Fig. 7.
Specific embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with accompanying drawing.Following examples are only used for
Technical scheme is clearly illustrated, therefore is only used as example, and protection model of the invention can not be limited with this
Enclose.
It should be noted that unless otherwise indicated, technical term used in this application or scientific terminology should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
Referring to figs. 1 to Fig. 8, in one embodiment, the present invention provides VVT, including：Electromagnet 100,
Hydraulic valve 500 and camshaft adjuster 600；
The electromagnet 100 include be coaxially disposed core assembly 1, pedestal 2, every magnetic inner cover 3 and electromagnetic coil portion 4；Institute
Electromagnetic coil portion 4 is stated including skeleton 41 and coil 42, the skeleton 41 is set in described every outside magnetic inner cover 3, and the coil 42 is twined
It is wound on skeleton 41；The core assembly 1 and the pedestal 2 are located at described every in magnetic inner cover 3 vertically；The core assembly 1
Including valve element 11 and the push rod 12 being connected on valve element 11；The pedestal 2 is with male cone (strobilus masculinus) near one end of the valve element 11
Tapering 21, and be provided with the resettlement section 24 for housing the valve element 11, the axle center of the pedestal 2 is additionally provided with guide through hole
2211, the push rod 12 is slidably disposed in the guide through hole 2211.
The hydraulic valve 500 include valve body 510 and can adjusting position vertically reversing bar 520, the reversing bar 520
One end is with the push rod 12 against the other end is connected by stage clip 530 with the inwall of the valve body.The hydraulic valve 500 is provided with
Oil inlet 513 and oil-out 514, the valve body is axially disposed the first oilhole 511 and the second oilhole 512, the reversing bar
520 are arranged in the valve body, the oil duct of both ends open are wherein formed in reversing bar 220, when the reversing bar 520 is moved vertically
When dynamic, the hydraulic valve switches between the first working condition, the second working condition and the 3rd working condition；At the hydraulic valve
When the first working condition, the oil inlet 513 is connected with first oilhole 511, the oil return opening and second oilhole
512 connections；When the hydraulic valve is in the second working condition, the oil inlet 513 is connected with second oilhole 512, described
Oil return opening is connected with first oilhole 511；When the hydraulic valve is in three working conditions, the fuel feed hole, oil return opening, the
One oilhole 511 is not connected with any two in the second oilhole 512.Specifically, being provided with first gear vertically on reversing bar 520
The block 522 of block 521 and second, is additionally provided with the transition oilhole 516 of First Transition oilhole 515 and second, and First Transition on valve body
Oilhole 515 and the second transition oilhole 516 by valve body outside oil duct connect.Formed between first block 521 and the second block 522
High pressure chest, high pressure chest is connected by the second transition oilhole 516 with oil inlet 513, selectable to make when reversing bar 520 is acted
High pressure chest is connected with the first oilhole 511 or the second oilhole 512, forms oil-feed oil circuit, and when high pressure chest and the first oilhole 511 and the
When an oilhole in two oilholes 512 is connected, another oilhole is connected with spill port, forms oil return circuit.
The camshaft adjuster 600 to be provided with and shift to an earlier date oilhole and for making camshaft phase for shift to an earlier date camshaft phase
Delayed oilhole after steric retardation；First oilhole 511 is connected with the oilhole in advance, and second oilhole 512 is delayed with described
Oilhole is connected.
The present invention that the present embodiment is provided provides VVT, including：Electromagnet 100, hydraulic valve 500 and convex
Wheel shaft-type governor 600, operation principle is as follows：
Reversing bar 313 is made vertically by the collective effect of the stage clip 530 of the push rod 12 and hydraulic valve 500 of electromagnet 100
It is mobile, so that the hydraulic valve 500 can switch between the first working condition, the second working condition and the 3rd working condition,
It is selectable oil inlet 511 is connected with oilhole and the delayed oilhole in advance of camshaft adjuster, so as to adjust enter camshaft
Adjuster 600 shifts to an earlier date the oil mass in chamber and delayed chamber, so as to adjust the phase of camshaft, the unlatching of valve is shifted to an earlier date or delayed, complete
Into valve timing regulation.
After coil 42 is powered, valve element 11 and pedestal 2 are magnetized, and pole orientation is consistent, valve element 11 and pedestal 2 it is opposite one
The pole orientation at end is conversely, so as to mutually inhale with valve element 11 drives push rod 12 to be moved to the direction of pedestal 2.In the application, the base
Seat 2 is the tapering 21 with male cone (strobilus masculinus), the magnetic line of force warp of the surface formation of valve element 11 and pedestal 2 near one end of the valve element 11
Cross the male cone (strobilus masculinus) in tapering 21, from valve element 11 smooth it is excessive onto pedestal 2, magnetic resistance is small, magnetic force is uniform, it is therefore prevented that valve element 11 is acted
When Caton phenomenon, and then make hydraulic valve 500 folding conversion is more smooth, VVT is more steady reliable,
Prevent due to engine pause and transition in rhythm or melody caused by electromagnet 100, or even engine is along bad, while improving comfortableness.
Specifically, the pedestal 2 includes tapering 21, pars intermedia 22 and the extension base portion 23 of integrally connected shaping, it is described
Pars intermedia 22 is provided with radial support portion 221, and the middle part in the radial support portion 221 is provided with guide through hole 2211, the push rod 12
Grafting enters in guide through hole 2211, and the axis of the right side of valve element 11 is provided with centre bore, and the left end of push rod 12 is press-fited by interference
Enter in the centre bore of the valve element 11.
Described is that hollow housing and left end are closed every magnetic inner cover 3, the left side for including being sequentially connected vertically every magnetic inner cover 3
Cover portion 31, middle cone face 32, right cover portion 33 and cover portion 34 in extension.Middle cone face 32 and the male cone (strobilus masculinus) in the tapering 21 of pedestal 2
There is the first cavity in laminating, the left cover portion 31, the first cavity constitutes the operation passage of valve element 11 with the resettlement section 24 of pedestal 2.
By the first cavity of left cover portion and the resettlement section 24 of pedestal 2 to the guiding and guide through hole 2211 pairs of valve element 11
The guiding of push rod 12, realizes the axially concentric of the i.e. core assembly 1 of valve element 11 and push rod 12, while realizing valve element 11 first
Balance is forced when being moved reciprocatingly in cavity and the second cavity, is designed with reference to the tapering 21 of pedestal 2, make electromagnetic coil portion 4 defeated
The magnetic field for going out is presented horizontal nature as far as possible, and tends towards stability, and then it is more smooth magnetic valve is obtained folding conversion.
In order to further increase the smoothness of magnetic valve folding, the present embodiment middle skeleton 41 is corresponding with the tapering 21 of pedestal 2
Position be provided with and the cone angle identical inner conical surface of the tapering 21.
Inventor has found by experimental study for many years, when the frustoconical bevel angle in tapering 21 is 30 ° to 60 °, magnetic valve operation
It is obviously reduced to Caton phenomenon during tapering 21, especially when taper is 50.5 °, is smoothed out the most.
Further, inventor also found that the working gas gap (range of valve element 11) of core assembly 1 is also influence electricity
One key reason of magnet valve opening and closing movement stationarity.The size of electromagnetic force is influenceed between the size of working gas gap, if electromagnetism
Power is too small, and valve element 11 can be made to act insensitive or cannot act.Reference picture 6, applicant increases simulation on the push rod of electromagnet
After the load pressure of working condition, change the dutycycle being powered on coil, adjust the shift motion of push rod, represent that difference is accounted in figure
Under sky ratio, the respective value of push rod displacement and electromagnetic force, when displacement is 4 millimeters, electromagnetic force reaches maximum, and negative
Load pressure is identical, and during less than 3 millimeters, electromagnetic force is smaller, and being likely to result in cannot promote valve core of the electromagnetic valve.Therefore, working gas gap can
During between 3 millimeters to 6 millimeters, preferably stroke distances and electromagnetic force are obtained, especially when working gas gap is 4 millimeters, electricity
Magnetic force reaches maximum.
Therefore in the present embodiment, the taper in the tapering 21 of pedestal 2 is 50.5 °, and the working gas gap of core assembly 1 is 4 millimeters.
Further, the push rod 12 is provided with steel ball 13 away from one end of the valve element 11.
In order to prevent hydraulic oil from entering inside electromagnet, the pedestal 2 is provided with epitaxial base away from one end of the valve element 11
Portions 23, the extension Inner cover portions are clipped between the skeleton 41 and the extension base portion 23, the extension Inner cover portions and institute
State and be provided with sealing ring between extension base portion 23.By extension Inner cover portions and the pinch seal circle of pedestal 2, so as to prevent hydraulic oil
Into core assembly 1, the action of core assembly 1 is influenceed, damage electromagnet.
Further, the material of the valve element 11 is pure iron, and the material of the push rod 12 is stainless steel.The selection of material allows
Core assembly 1 possesses magnetic induction sensitivity higher, is made up of the technique such as punching press and powder smelting, and low cost of manufacture can be with economy
Realize volume production.
Existing camshaft adjuster is typically provided with hydraulic channel, and centre is provided with axis hole, and camshaft is arranged in axis hole,
The surface of camshaft also offers hydraulic channel, is connected with the hydraulic channel of camshaft adjuster.When the hydraulic pressure on camshaft leads to
Road needs to change whole camshaft after damaging, and camshaft is connected with piston, and dismounting is complicated, and maintenance cost is high.
In order to overcome problem above, the center on the edge of heretofore described camshaft adjuster 600 is axially disposed positioning
Through hole, the hydraulic valve 500 is arranged in the positioning through hole；First oilhole 511 and the second oilhole 512 are axially arranged on valve
On body 510, oilhole and delayed oilhole are axially arranged on the inwall of positioning through hole in advance；First oilhole 211 is carried with described
Preceding oilhole connection, second oilhole 212 is connected with the delayed oilhole.From without the processing hydraulic passage on camshaft,
Hydraulic circuit is formed, when safeguarding, only need to be dismantled or be changed hydraulic valve 500 and camshaft adjuster 600, dismounting is simple, safeguards into
This is low.
Specifically, the hole wall of the positioning through hole is axially disposed the annular groove 612 of first annular groove 611 and second, institute
State and the oilhole in advance is provided with first annular groove 611, the delayed oilhole is provided with second annular groove 612.Wherein, institute
State the first oilhole 511 and second oilhole 512 is along the hydraulic valve 500 circumferentially four.It is multiple by setting
First oilhole 511 and the second oilhole 512 increase fluid flow, set annular groove on the one hand can prevent it is circumferentially positioned forbidden to cause,
First oilhole 511 cannot be connected with oilhole in advance, the second oilhole 512 with delayed oilhole；On the other hand, in circumferentially arranged multiple
When the first oilhole 511 or the second oilhole 512, connect multiple first oilholes 511 by first annular groove 611, by the second ring
Shape groove 612 connects multiple second oilholes 512.It should be appreciated that the annular groove 612 of first annular groove 611 and second can also
It is arranged on the valve body 210 of hydraulic valve 200, is the equivalent of the application.
More specifically, the camshaft adjuster 600 includes the stator and rotor that are coaxially disposed, and the rotor is provided with leaf
Piece, forms between the rear end face of the blade and the stator and shifts to an earlier date chamber, shape between the front end face of the blade and the stator
Into delayed chamber, the oilhole in advance is connected with the chamber in advance, and the delayed oilhole is connected with the delayed chamber.By hydraulic valve
500 it is selectable fuel feed hole is connected with chamber in advance or delayed chamber, another cavity is connected with oil return opening 514, so as to form liquid
Push back road.The rotor forward or reverse is driven, so as to adjust the phase of camshaft.
The valve body 510 is provided with bolt head near one end of electromagnet 100, and the other end is provided with for connecting camshaft
External screw thread.During assembling, hydraulic valve is fixed on camshaft as centre bolt through camshaft adjuster 600, assembling letter
Single, maintenance cost is low.
Further, in the electromagnetic hydraulic valve of the present embodiment, the electromagnet 100 and hydraulic valve 500 are detachably connected.
Electromagnetic hydraulic valve is usually integrally connected, and electromagnet segments opposing hydraulic valve portion is easier to break down.Due to this implementation
The hydraulic valve of example is fixed on camshaft as centre bolt through camshaft adjuster, if practical conventional electromagnetic hydraulic valve,
, it is necessary to just dismantling a whole set of camshaft adjuster can unload electromagnetic hydraulic valve after electromagnet segments failure, therefore, in order to the side of maintenance
Just, the electromagnet and hydraulic valve of the application are detachably connected, and are separately fixed on peripheral equipment after adjustable good position, can also adopt
Readily removable structure is commonly used with clamping or threaded connection etc., concrete structure is repeated no more, only electromagnet need to be changed after electromagnet is damaged
, it is not required to dismount hydraulic valve and camshaft adjuster.
In the description of the present application, it is to be understood that term " on ", D score, "front", "rear", "left", "right", " water
It is flat ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, merely to just
Described in the description present invention and simplifying, rather than indicate imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying relatively important
Property or the implicit quantity for indicating indicated technical characteristic.In the description of the invention, " multiple " is meant that two or more,
Unless otherwise expressly limited specifically.
In specification of the invention, numerous specific details are set forth.It is to be appreciated, however, that embodiments of the invention can be with
Put into practice in the case of without these details.In some instances, known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.
In the description of this specification, specific features, structure, material or feature can be in any one or more embodiments
Or combined in an appropriate manner in example.Additionally, in the case of not conflicting, those skilled in the art can say this
The feature of different embodiments or example and different embodiments or example described in bright book is combined and combines.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme, it all should cover in the middle of the scope of claim of the invention and specification.
Claims (8)
1. a kind of VVT, it is characterised in that including：Electromagnet, hydraulic valve and camshaft adjuster；
The electromagnet include be coaxially disposed core assembly, pedestal, every magnetic inner cover and electromagnetic coil portion；The electromagnetic coil portion
Including skeleton and coil, the skeleton is set in described every outside magnetic inner cover, and the coil is wrapped on skeleton；The core assembly
It is located at vertically with the pedestal described every in magnetic inner cover；The core assembly includes valve element and the push rod being connected on valve element；
The pedestal is the tapering with male cone (strobilus masculinus) near one end of the valve element, and is provided with the collecting for housing the valve element
Portion, the axle center of the pedestal is additionally provided with guide through hole, and the push rod is slidably disposed in the guide through hole；
The hydraulic valve include valve body and can adjusting position vertically reversing bar, one end of the reversing bar is supported with the push rod
Lean on, the other end is connected by stage clip with the inwall of the valve body；The hydraulic valve be provided with oil inlet, oil return opening, the first oilhole and
Second oilhole, when reversing bar is axially moveable, the hydraulic valve can be in the first working condition, the second working condition and the 3rd work
Between state switch, and the hydraulic valve be in the first working condition when, the oil inlet is connected with first oilhole, described
Oil return opening is connected with second oilhole；The hydraulic valve be in the second working condition when, the oil inlet and described second oil
Hole is connected, and the oil return opening is connected with first oilhole；When the hydraulic valve is in three working conditions, the fuel feed hole,
Any two in oil return opening, the first oilhole and the second oilhole is not connected；
The camshaft adjuster is provided with the oilhole and delayed for making camshaft phase in advance for shifting to an earlier date camshaft phase
Delayed oilhole；First oilhole is connected with the oilhole in advance, and second oilhole is connected with the delayed oilhole.
2. VVT according to claim 1, it is characterised in that the frustoconical bevel angle in the tapering is 30 °
To 60 °.
3. VVT according to claim 1, it is characterised in that the maximum that the valve element is axially moveable
Stroke is between 3 millimeters to 6 millimeters.
4. VVT according to claim 1, it is characterised in that the center on the camshaft adjuster edge
Axially disposed to have positioning through hole, the hydraulic valve is arranged in the positioning through hole；First oilhole and the second oilhole edge
The hydraulic valve is axially disposed within valve body, and oilhole and the delayed oilhole in advance are axially arranged on the positioning through hole
Inwall.
5. VVT according to claim 4, it is characterised in that the hole wall of the positioning through hole is vertically
First annular groove and the second annular groove are provided with, the oilhole in advance is arranged in the first annular groove, the delayed oilhole
It is arranged in second annular groove.
6. VVT according to claim 5, it is characterised in that first oilhole and second oil
Hole is the multiple along the valve body circumferentially.
7. VVT according to claim 1, it is characterised in that the valve body is near one end of electromagnet
Bolt head is provided with, the other end is provided with the external screw thread for connecting camshaft.
8. VVT according to claim 1, it is characterised in that the electromagnet and hydraulic valve are detachable
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189289.XA CN106837456A (en) | 2017-03-27 | 2017-03-27 | Vvt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189289.XA CN106837456A (en) | 2017-03-27 | 2017-03-27 | Vvt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106837456A true CN106837456A (en) | 2017-06-13 |
Family
ID=59129688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710189289.XA Pending CN106837456A (en) | 2017-03-27 | 2017-03-27 | Vvt |
Country Status (1)
| Country | Link |
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| CN (1) | CN106837456A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061192A (en) * | 2017-12-29 | 2018-05-22 | 浙江博顿燃具科技有限公司 | For the automatic top suction type solenoid valve of cock valve assembly |
| CN108105455A (en) * | 2017-12-29 | 2018-06-01 | 浙江博顿燃具科技有限公司 | A kind of automatic top suction type on-off system for cock valve assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179540A (en) * | 2013-05-24 | 2014-12-03 | 株式会社电装 | Valve timing control apparatus |
| JP2015151943A (en) * | 2014-02-14 | 2015-08-24 | アイシン精機株式会社 | valve timing control device |
| CN105422204A (en) * | 2014-09-16 | 2016-03-23 | 爱信精机株式会社 | Device For Variable Valve Timing |
| CN106062324A (en) * | 2014-02-27 | 2016-10-26 | 爱信精机株式会社 | Valve opening-closing timing control device |
| CN106439170A (en) * | 2016-10-28 | 2017-02-22 | 江苏海龙电器有限公司 | Electromagnet for variable valve timing system of automobile engine |
-
2017
- 2017-03-27 CN CN201710189289.XA patent/CN106837456A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179540A (en) * | 2013-05-24 | 2014-12-03 | 株式会社电装 | Valve timing control apparatus |
| JP2015151943A (en) * | 2014-02-14 | 2015-08-24 | アイシン精機株式会社 | valve timing control device |
| CN106062324A (en) * | 2014-02-27 | 2016-10-26 | 爱信精机株式会社 | Valve opening-closing timing control device |
| CN105422204A (en) * | 2014-09-16 | 2016-03-23 | 爱信精机株式会社 | Device For Variable Valve Timing |
| CN106439170A (en) * | 2016-10-28 | 2017-02-22 | 江苏海龙电器有限公司 | Electromagnet for variable valve timing system of automobile engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061192A (en) * | 2017-12-29 | 2018-05-22 | 浙江博顿燃具科技有限公司 | For the automatic top suction type solenoid valve of cock valve assembly |
| CN108105455A (en) * | 2017-12-29 | 2018-06-01 | 浙江博顿燃具科技有限公司 | A kind of automatic top suction type on-off system for cock valve assembly |
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