CN103758604B - Gas distributing mechanism for engine and car with same - Google Patents
Gas distributing mechanism for engine and car with same Download PDFInfo
- Publication number
- CN103758604B CN103758604B CN201410036327.4A CN201410036327A CN103758604B CN 103758604 B CN103758604 B CN 103758604B CN 201410036327 A CN201410036327 A CN 201410036327A CN 103758604 B CN103758604 B CN 103758604B
- Authority
- CN
- China
- Prior art keywords
- valve
- roller
- outer shaft
- cam
- actuating mechanism
- 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.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 87
- 125000006850 spacer group Chemical group 0.000 claims description 18
- RDYMFSUJUZBWLH-UHFFFAOYSA-N endosulfan Chemical group C12COS(=O)OCC2C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl RDYMFSUJUZBWLH-UHFFFAOYSA-N 0.000 claims description 14
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 13
- 230000009471 action Effects 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000002000 scavenging effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a gas distributing mechanism for an engine and a car with the gas distributing mechanism. The gas distributing mechanism comprises a valve mechanism, a rocker arm assembly, a first roller, a second roller, a cam shaft, a bearing structure, a phase adjusting mechanism, and a third roller or a limiting pin. A driving molded surface is constructed at the bottom of the rocker arm assembly and is suitable for driving a valve to move, the first roller and the second roller can be arranged on the rocker arm assembly in a pivoted mode, the cam shaft comprises an inner shaft and an outer shaft, the inner shaft and the outer shaft are coaxially arranged, an inner shaft cam and an outer shaft cam which rotate along with the corresponding shafts are arranged on the inner shaft and the outer shaft respectively, the outer shaft cam abuts against the first roller, the inner shaft cam abuts against the second roller, the phase adjusting mechanism is used for adjusting the relative phase of the inner shaft and the outer shaft, a circular-arc curved surface or a sliding groove is formed in the bearing structure, the third roller can be tightly attached to the circular-arc curved surface in a rolling mode, and the limiting pin can be arranged in the sliding groove in a sliding and matching mode. The gas distributing mechanism can achieve secondary opening of the valve, the continuous opening time of the valve can be prolonged at the same time, the structure is simple and compact, and the influence on the height of the engine is small.
Description
Technical field
The present invention relates to automobile construction field, especially relate to a kind of valve actuating mechanism for electromotor and the car with it
?.
Background technology
The valve actuating mechanism of electromotor is used for driving the opening and closing of valve, and its port timing is generally basede on a certain narrow and small work of electromotor
The local optimum of condition scope and determine, immobilize in the course of the work, and valve motion rule determined by cam profile completely.
But due to cam profile single it is impossible to adjust valve motion rule according to electromotor actual condition conditions of demand it is impossible to
The different operating condition of Shi Shiying electromotor, oil consumption is higher, and discharge is poor, is unfavorable for improving the power performance of electromotor simultaneously,
And general lift range variable technology can only change valve opening maximum lift, the comparison that shifts gears is single, and complex structure,
Parts are many, control loaded down with trivial details.
Content of the invention
It is contemplated that at least solving one of above-mentioned technical problem of the prior art to a certain extent.For this reason, this
A bright purpose is to propose a kind of valve actuating mechanism for electromotor, and this valve actuating mechanism can be realized the secondary of valve and open
Open, the time of valve duration can also be extended simultaneously, and simple and compact for structure, electromotor is highly affected less.
Further object is that proposing a kind of vehicle with above-mentioned valve actuating mechanism.
Valve actuating mechanism for electromotor according to embodiments of the present invention, comprising: valve mechanism；Rocker arm assembly, described shakes
The substructure of arm component has driving face, and described driving face is suitable to drive the valve of valve mechanism along parallel to valve center
The direction motion of line；First roller, the second roller, described first roller and described second roller shake described in being all pivotally arranged in
On arm component；Camshaft, described camshaft includes the interior axle being coaxially disposed and outer shaft, and described interior axle has synchronous with described interior axle
The interior axis cam of rotation, described outer shaft has the outer shaft cam with described outer shaft synchronous rotary, and described outer shaft cam is against described
First roller, the second roller described in described interior axle cam abutment；For supporting the supporting structure of described camshaft；And be used for adjusting
Save the phase-regulating mechanism of described interior axle and described outer shaft relative phase；Wherein, described valve actuating mechanism also includes three rollers, institute
State three rollers to be pivotally arranged on described rocker arm assembly, described supporting structure is also configured with circular arc camber, the described 3rd
Roller is rollably close on described circular arc camber；Or described valve actuating mechanism also includes spacer pin, described spacer pin is located at
On described rocker arm assembly, described supporting structure is also configured with sliding tray, described spacer pin is slidably fit into described slip
In groove.
Valve actuating mechanism for electromotor according to the above embodiment of the present invention, the shown interior axle being coaxially disposed using inclusion
Camshaft with shown outer shaft, it is possible to achieve the purpose of shown secondary opening of air valve and the prolongation of shown valve duration phase,
Shown in realization during secondary opening of air valve, it is possible to achieve scavenging function, electromotor (for example, petrol engine machine, diesel oil can be met
Electromotor machine) demand to the valve motion rule of different operating modes.Valve actuating mechanism simultaneously according to embodiments of the present invention and its shake
Arm component compact conformation, required arrangement space is little, electromotor height is affected little, and oil circuit arranges relatively easy and mechanical loss
Little.
According to one embodiment of present invention, described rocker arm assembly includes: two side plates, described two side plates are each other
Relatively and interval setting；Two drive divisions, described two drive divisions are respectively provided at the outside of described two side plates, described driving
The bottom surface in portion constitutes described driving face；Described first roller is two, and described two first rollers are respectively provided at described two
The outside of side plate；Described second roller is one, and described second roller is located between described two side plates；Described 3rd rolling
Son is two, and described two three rollers are respectively provided at the outside of described two drive divisions.
According to one embodiment of present invention, described two side plates and described two first roller pass through the first bearing pin phase
Even；Described two side plates are connected by the second bearing pin with described second roller；Described two drive divisions and the described two 3rd
Roller passes through the 3rd bearing pin respectively and is connected.
According to one embodiment of present invention, described first roller is located at one end of described side plate, described second roller
The other end positioned at described side plate.
According to one embodiment of present invention, described supporting structure is respectively formed with upper recess and lower concave part, described fovea superior
The top surface of portion's supporting structure described in insertion upwards, described in the downward insertion of described lower concave part, the bottom surface of supporting structure, wherein said convex
In described upper recess and described three rollers are accommodated in described lower concave part axle bearing, and the top surface of described lower concave part constitutes institute
State circular arc camber.
According to one embodiment of present invention, described upper recess is semicircular arc, and the diameter of described upper recess is convex with described
The diameter of wheel shaft (outer shaft) is roughly equal.
According to one embodiment of present invention, described outer shaft cam is interference fitted on described outer shaft, described interior axis cam
Gap coordinate on described outer shaft, described outer shaft is formed with stopper slot, described interior axis cam by wear described interior axis cam,
The backing pin of described stopper slot and described interior axle is connected.
According to one embodiment of present invention, the described valve actuating mechanism for electromotor also includes: valve rocker and hydraulic pressure
Tappet, described valve rocker is provided with valve rocker roller, the one end fits of the top of described valve and described valve rocker,
Described hydraulic tappet is coordinated with the other end of described valve rocker, and described driving face is resisted against on described valve rocker roller.
According to one embodiment of present invention, described phase-regulating mechanism is phaser.
Vehicle according to embodiments of the present invention, is also included according to the distribution for electromotor in the above embodiment of the present invention
Mechanism.
Brief description
Fig. 1 is the structural representation of the valve actuating mechanism for electromotor according to an embodiment of the invention；
Fig. 2 is the side view of the valve actuating mechanism for electromotor according to an embodiment of the invention；
Fig. 3 is the structural representation at the rocker arm assembly for the valve actuating mechanism of electromotor according to an embodiment of the invention
Figure；
Fig. 4 is the structural representation of the supporting structure of the valve actuating mechanism for electromotor according to an embodiment of the invention
Figure；
Fig. 5 is the structural representation of the camshaft of the valve actuating mechanism for electromotor according to embodiments of the present invention；
Fig. 6 is the structural representation of the valve actuating mechanism for electromotor in accordance with another embodiment of the present invention；
Fig. 7 is the side view of the valve actuating mechanism for electromotor in accordance with another embodiment of the present invention；
Fig. 8 is that the structure at the rocker arm assembly for the valve actuating mechanism of electromotor in accordance with another embodiment of the present invention is shown
It is intended to；
Fig. 9 is the structural representation of the supporting structure of the valve actuating mechanism for electromotor in accordance with another embodiment of the present invention
Figure.
Reference:
Valve actuating mechanism 100,
Valve mechanism 1, valve 11,
Rocker arm assembly 2,
Side plate 21,
Drive division 23, driving face 231,
First roller 31, the first roller 32, three rollers 33, spacer pin 34,
Camshaft 42,
Interior axle 422, interior axis cam 4221, backing pin 4222
Outer shaft 423, outer shaft cam 4231, stopper slot 4232,
Supporting structure 5, upper recess 51, lower concave part 52, circular arc camber 521, sliding tray 53,
Valve rocker 61, valve rocker roller 611, hydraulic tappet 62,
First bearing pin 71, the second bearing pin 72, the 3rd bearing pin 73,
Elastic reset structure 8
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation of instruction such as pin ", " counterclockwise " or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of
The description present invention and simplification describe, rather than the device of instruction or hint indication or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, are therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
Connect or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included not to be directly contact but passes through it is also possible to include the first and second features
Between other characterisation contact.And, fisrt feature second feature " on ", that " top " and " above " include first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
The body group of electromotor is the support of electromotor, is toggle, valve actuating mechanism and the assembling of each system
Matrix.In the art, usually, body group is mainly made up of cylinder block, cylinder head, cylinder head gasket and oil sump etc.,
Oil sump is generally located in the bottom of cylinder block, and cylinder head is located at the top of cylinder block, and cylinder head gasket is located at the top surface of cylinder block
And the bottom surface of cylinder head between, for sealing gap therebetween.
Cylinder head forms combustor together with top land and cylinder, and the top of combustor has air inlet and air vent,
The valve of valve mechanism is located in cylinder cap and closes air inlet and air vent.For existing general electromotor, adopt more
With the valve form of Two In and Two Out, minority also has the valve form entering scene 2 using one-in-and-one-out or three.
For same electromotor, typically all there are multiple different operating modes, such as low speed small load condition, high speed are negative greatly
Lotus operating mode etc., when electromotor is under different operating modes, externally the moment of torsion of output and power are different to electromotor, electromotor simultaneously
The content of the harmful gass of discharge is also different, and the valve actuating mechanism of electromotor is according to the cycle of operation carrying out in each cylinder and igniting
The requirement of order, timing opening and closing inlet valve and exhaust valve.
Usually, valve actuating mechanism can adjust the lift amount of valve, but regulative mode is single to be made it is impossible to meet well
With requiring.Valve actuating mechanism according to embodiments of the present invention can realize the secondary opening of valve, simultaneously also can proper extension valve
Opening time, regulative mode is various, thus preferably meeting the requirement of different operating modes.
It is appreciated that valve actuating mechanism according to embodiments of the present invention can be used for driving the valve event of air inlet side, certainly
Can be used for driving the valve event of exhaust side, or be simultaneously used in air inlet side and exhaust side to drive corresponding valve event.
Preferably, valve actuating mechanism according to embodiments of the present invention is used for driving the valve event of exhaust side, in the following description, with this
As a example valve actuating mechanism is used for driving the valve of exhaust side.
Describe the valve actuating mechanism 100 for electromotor according to embodiments of the present invention referring to Fig. 1-Fig. 9 in detail.
Valve actuating mechanism 100 for electromotor according to embodiments of the present invention includes valve mechanism 1, rocker arm assembly 2, first
The camshaft of roller 31, the second roller 32, three rollers 33 or spacer pin 34, the interior axle 422 that inclusion is coaxially disposed and outer shaft 423
42nd, it is used for the supporting structure 5 of bearer cams axle 42 and the phase adjusted for adjusting interior axle 422 and outer shaft 423 relative phase
Mechanism's (not shown).
Wherein, valve mechanism 1 is prior art, and is well known to those skilled in the art, and for example valve mechanism 1 can
To include valve 11, valve 11 can move back and forth up and down to open or close combustion in valve guide bushing along the centrage of valve 11
Burn air inlet or the air vent of room, the part that identical setting can be adopted with prior art for these, it is not detailed herein.
As shown in Fig. 2, Fig. 3, Fig. 7 and Fig. 8, the substructure of rocker arm assembly 2 has driving face 231, and driving face 231 is fitted
Move along the direction parallel to valve 11 centrage in the valve 11 driving valve mechanism 1, driving face 231 can be boot last
Face, but not limited to this.It should be appreciated that those skilled in the art can according to actual needs and the driving face of flexible design 231
Concrete line style, is not limited to above-mentioned boot last face.
First roller 31, the second roller 32 are all pivotally arranged on rocker arm assembly 2.That is, the first roller 31 sets
On rocker arm assembly 2 and with respect to rocker arm assembly 2 pivotably, the second roller 32 is located on rocker arm assembly 2 and with respect to rocking arm set
Part 2 is pivotable.
As shown in Fig. 1-Fig. 3, Fig. 5 and Fig. 6-Fig. 8, camshaft 42 includes the interior axle 422 being coaxially disposed and outer shaft 423, interior
Axle 422 has the interior axis cam 4221 with interior axle 422 synchronous rotary, and outer shaft 423 has the outer crown of roll with outer shaft 423 synchronous rotary
Wheel 4231.
Outer shaft cam 4231 can be interference fitted on outer shaft 423, and interior axis cam 4221 can be coordinated in outer shaft 423 with gap
On, outer shaft 423 could be formed with stopper slot 4232, interior axis cam 4221 can be by wearing interior axis cam 4221, stopper slot
4232 and the backing pin 4222 of interior axle 422 be connected with interior axle 422.
With reference to shown in Fig. 1, Fig. 5 and Fig. 6, interior axle 422 is embedded in outer shaft 423 and interior axle 422 can relative rotation with outer shaft 423
Turn, also can synchronous rotary.Backing pin 4222 can slide in this stopper slot 4232, and stopper slot 4232 can limit interior axis cam 4221
The rotational angle of relative outer shaft 423, that is, pass through the position-limiting action of stopper slot 4232, the relative phase of interior axle 422 and outer shaft 423 can
Continuously adjustabe in certain angle.
, against the first roller 31, interior axis cam 4221 is against the second roller 32 for outer shaft cam 4231.In other words, outer shaft cam
4231 is equal with the quantity of the first roller 31 and respectively correspondingly against cooperation, interior axis cam 4221 and the second roller 32
Quantity is equal and difference is correspondingly against cooperation.
According to some embodiments of the present invention, each of interior axis cam 4221 and outer shaft cam 4231 are respectively provided with big base
Justify (a section in Fig. 2 and Fig. 7), little basic circle (the b section in Fig. 2 and Fig. 7) and be connected to the transition between big basic circle and little basic circle
Section (the c section in Fig. 2 and Fig. 7), but not limited to this, for a person skilled in the art, can fit according to actual needs
Answering property sets the molded line of cam.
For example, in big basic circle and the corresponding roller (i.e. of two kinds of cams (i.e. outer shaft cam 4231 and interior axis cam 42)
One roller 31 or the second roller 32) abutting contact when, the lift amount of valve 11 can be maximum.That is, outer shaft cam
When the big basic circle of 4231 big basic circle and the first roller 31 abutting contact and interior axis cam 4221 and the second roller 32 abutting contact,
Valve 11 is in maximum unlatching lift condition.
When the little basic circle that there is at least one cam in two kinds of cams is with corresponding roller contact, valve 11 may be at closing
Closed state, that is, the lift amount of valve 11 is minimum.For example, the big basic circle of outer shaft cam 4231 is with the first roller 31 abutting contact and interior
When the little basic circle of axis cam 4221 and the second roller 32 abutting contact, or the little basic circle of outer shaft cam 4231 and the first roller 31
When the big basic circle of abutting contact and interior axis cam 4221 and the second roller 32 abutting contact, valve 11 may be at closed mode.
And the changeover portion in two kinds of cams and corresponding roller contact or one be changeover portion, another be big basic circle and phase
When answering roller contact, then valve 11 lift amount can be between zero lift and maximum lift.For example, the mistake of outer shaft cam 4231
When crossing section and the first roller 31 abutting contact and the changeover portion of interior axis cam 4221 and the second roller 32 abutting contact, or outer shaft
With the first roller 31 abutting contact and the big basic circle of interior axis cam 4221 and the second roller 32 are against connecing for the changeover portion of cam 4231
When tactile, valve 11 lift amount can be between zero lift and maximum lift.
It is understood, however, that the present invention is not limited to this, for a person skilled in the art, reading explanation
On the basis of book disclosure it is clear that can with the molded line of flexible design above two cam, two kinds of cam profiles with
When the position of corresponding roller contact changes, after rocker arm assembly 2 action, the lift amount of drive gas door 11 can also adaptability become
Change, this is for a person skilled in the art it may be that easy to understand.
In the embodiment as shown in Fig. 1-Fig. 5, valve actuating mechanism 100 also includes three rollers 33, and three rollers 33 can
Pivotally it is located on rocker arm assembly 2, three rollers 33 are located on rocker arm assembly 2 and pivotable with respect to rocker arm assembly 2.
Circular arc camber 521 is configured with supporting structure 5, three rollers 33 are rollably close on circular arc camber 521, when
When rocker arm assembly 2 is by drive actions, three rollers 33 roll along circular arc camber 521.That is, using three rollers 33 and circle
The fit structure of arc surface 521 can limit the movement locus of rocker arm assembly 2, can keep the steady of rocker arm assembly 2 well simultaneously
Qualitative, and structure is simple.Meanwhile, this adopts circular arc camber 521 it is ensured that the smooth-going of valve 11 Conduce Disciplinarian, round and smooth,
Reduce the impact of valve actuating mechanism 100.It is understood that valve actuating mechanism 100 can be for the type adjustment circle of different electromotors
The parameter of arc surface 521.
In the embodiment as shown in Fig. 6-Fig. 9, valve actuating mechanism 100 also includes spacer pin 34.Spacer pin 34 can set
On rocker arm assembly 2.
Sliding tray 53 is also configured with supporting structure 5, spacer pin 34 is slidably fit in sliding tray 53.Work as rocking arm set
When part 2 is by drive actions, spacer pin 34 moves along sliding tray 53.That is, the cooperation using spacer pin 34 and sliding tray 53
Structure can limit the movement locus of rocker arm assembly 2, can keep the stability of rocker arm assembly 2 simultaneously well, and structure is simple.
Meanwhile, this adopts sliding tray 53 it is ensured that the smooth-going of valve 11 Conduce Disciplinarian, round and smooth, reduces rushing of valve actuating mechanism 100
Hit.It is understood that valve actuating mechanism 100 can adjust the form parameter of sliding tray 53 for the type of different electromotors.
Phase-regulating mechanism is used for adjusting the relative phase of outer shaft 423 and interior axle 422, thus change outer shaft cam 4231 with
The relative phase of interior axis cam 4221.According to one embodiment of present invention, phase-regulating mechanism can be phaser, phaser
Can be single rotor phaser, i.e. only one of which rotor, rotor can be connected with one of interior axle 422 and outer shaft 423, phase place
The stator of device can be connected with interior axle 422 with another in outer shaft 423, to adjust the phase place of relatively another axle of axle.With
The rotor of phaser is connected with interior axle 422, and as a example stator is connected with outer shaft 423, phaser can change the relative phase of interior axle 422
Position, when phaser is adjusted clockwise, valve 11 is realized secondary opening lift and is continued to increase, when phaser is adjusted counterclockwise, valve
11 unlatching durations were gradually increased.It should be appreciated that the relative phase that phaser adjusts two axles has been prior art, right here
The specific configuration of phaser, the concrete operating principle of phaser and regulation process do not make specified otherwise.
It is appreciated that because valve actuating mechanism 100 according to embodiments of the present invention drives homonymy valve 11 using being coaxially disposed
Interior axle 422 and outer shaft 423, valve actuating mechanism 100 therefore according to embodiments of the present invention adjusts this two axles by phaser
After relative phase, it is possible to achieve the secondary opening of valve 11 and prolongation valve 11 opening time.
Specifically, during camshaft 42 rotation it may appear that the big basic circle of above-mentioned two kinds of cams all with corresponding
Roller contact, now the lift amount of valve 11 can for maximum, there is also a kind of big basic circle of cam and corresponding roller simultaneously
The changeover portion of contact and another kind of cam and the situation of corresponding roller contact, now valve 11 lift amount relative maximum lift has been
Reduce, such valve 11 has breakdown action twice, be wherein once opened into maximum lift, the lift that another time is opened is relatively
High-lift reduces, that is, achieve the purpose of valve 11 secondary opening.
Further, when the interval of valve 11 secondary opening is larger, if valve 11 secondary opening of exhaust side is close to air inlet side
Valve closing time when, it is possible to achieve scavenging function, such that it is able to improve low engine speed moment of torsion and transient response performance.If
During valve 11 secondary opening of exhaust side, heat management can be strengthened, realize rapid warming-up, during solution low compression ratio, electromotor is cold opens
Dynamic difficult problem, and engine emission can be reduced, improve engine cold idle stability and operating ride comfort and dpf
Moment of torsion control of regeneration stage etc. acts on.The concrete time interval controlling valve 11 secondary opening, can pass through adaptability design
Cam profile is realized, but not limited to this.
After phaser adjusts the relative phase of two axles, the relative phase of interior axis cam 4221 and outer shaft cam 4231 is sent out
Raw change, now can realize increasing valve 11 open-interval purpose, such as after the relative phase having adjusted two axles, interior
Axis cam 4221 and outer shaft cam 4231 occur the situation continuing big basic circle and corresponding roller contact, now can greatly prolong
Valve 11 opens the persistent period.
Thus, the valve actuating mechanism 100 for electromotor according to the above embodiment of the present invention, is coaxially disposed using inclusion
The camshaft 42 of interior axle 422 and outer shaft 423, it is possible to achieve the mesh of valve 11 secondary opening and valve 11 unlatching duration prolongation
, when realizing valve 11 secondary opening, it is possible to achieve scavenging function, can meet electromotor (for example, petrol engine machine,
Diesel engine machine) demand to the valve motion rule of different operating modes.Valve actuating mechanism 100 simultaneously according to embodiments of the present invention
And its rocker arm assembly 22 compact conformation, required arrangement space is little, electromotor height is affected little, and oil circuit arranges relatively easy and machine
Tool loss is little.
Describe the valve actuating mechanism 100 in diagram referring to Fig. 1-Fig. 9 in detail.
As shown in figures 3 and 8, rocker arm assembly 2 can include two side plates 21 and two drive divisions 23.Two side plates
21 relative to each other and interval settings.Can be connected by middle interconnecting piece between two side plates 21.Two drive divisions 23 set respectively
In the outside of two side plates 21, the bottom surface of drive division 23 constitutes driving face 231.As shown in Figure 2 and Figure 7, drive division 23
Bottom surface be cambered surface to constitute driving face 231, cambered surface here can be divided into the subarc face that multistage is sequentially connected, and that is, this is driving
Face 231 it is so structured that boot last, thus can reduce valve 11 movement velocity, acceleration and jerk value it is ensured that valve actuating mechanism
100 stability, can reduce design of cam contour line required precision simultaneously, cost-effective, but not limited to this.
First roller 31 is two, and two the first rollers 31 are respectively provided at the outside of two side plates 21；Second roller 32
For one, the second roller 32 is located between two side plates 21.Correspondingly, outer shaft cam 4231 is two, interior axis cam 4221
For one, interior axis cam 4221 is located between two outer shaft cam 4231.
Three rollers 33 are two, and two three rollers 33 can be respectively provided at the outside of two drive divisions 23.Correspondingly,
Circular arc camber 521 respectively with two three rollers 33 cooperations is configured with supporting construction 5.As shown in figure 4,5 points of supporting structure
It is not formed with upper recess 51 and lower concave part 52, the top surface of upper recess 51 insertion supporting structure 5 upwards, the downward insertion of lower concave part 52 is propped up
The bottom surface of bearing structure 5, wherein camshaft 42 are bearing in upper recess 51 and three rollers 33 are accommodated in lower concave part 52, lower concave part
52 top surface constitutes circular arc camber 521.Thus, supporting construction 5 can also preferably supporting cam wheel axle 42.
Further, as shown in Fig. 2 upper recess 51 can be semicircular arc, outside the diameter of upper recess 51 and camshaft 42(
Axle 423) diameter roughly equal, thus play preferably support outer shaft 423 effect, axial limiting is carried out to outer shaft 423.
As shown in figure 4, in this some embodiment, supporting construction 5 is configured to rectangle tabular, and set in supporting construction 5
There are upper notch 51 corresponding with camshaft 42 and lower recess 52 corresponding with three rollers 33, simple by this structure, easy to process,
Low cost, takes up room little, convenient arrangement.
Wherein, supporting construction 5 is located in the body group of electromotor.Here, need explanation a bit, in the art, machine
Body group mainly includes the parts such as cylinder block, cylinder head, cylinder head gasket and oil sump, but in this utility model, body
Group should broadly understood, you can be interpreted as that this body group not only includes the portion included by above-mentioned traditional sense upper machine body group
Part, can also include some attached installing components etc..For example, in superincumbent description, " supporting construction 5 is located at the machine of electromotor
In body group " it can be understood as supporting construction 5 is directly arranged in body group such as cylinder head, or can be fixedly installed in cylinder head
Intermediate member, supporting construction 5 is located on this intermediate member, and that is, intermediate member here can be understood as of body group
Point.
Further, as shown in figure 3, two side plates 21 and two the first rollers 31 can pass through the first bearing pin 71 phase
Even, two side plates 21 can be connected by the second bearing pin 72 with the second roller 32, two drive divisions 23 and two three rollers
33 can pass through the 3rd bearing pin 73 respectively is connected.Thus, the arrangement of three rollers 33 is more flexible.Certain three rollers 33 with shake
Arm component 2 be pivotably connected mode however it is not limited to this, three rollers 33 can also be with the first roller 31 and the second roller 32
One of be coaxially disposed.In other words, three rollers can also pass through one of the first bearing pin 71 and the second bearing pin 72 and shake
Arm component 2 is pivotly connected, thus increasing the compactedness of valve actuating mechanism 100, reduces parts, cost-effective.
As shown in figure 3, side plate 21 can be formed as " v " type.First roller 31 may be located at one end of side plate 21, the
Two rollers 32 may be located at the other end of side plate 21, and simpler, compact by this structure, parts are less.
As shown in Figure 7 and Figure 8, spacer pin 34 can be integrally formed with the 3rd bearing pin 73, and the two ends of the 3rd bearing pin 73 are respectively
Extend to both sides and beyond two rocking arm portions 211 to form spacer pin 34.Spacer pin 34 can be two.Correspondingly, as Fig. 9 institute
Show, supporting construction 5 can be provided with circular arc sliding tray 53, spacer pin 34 can slide in sliding tray 53.Wherein spacer pin
34 can be stepped, and the concrete shape of sliding tray 53 can be not limited to according to the Its Track Design needed for rocker arm assembly 2
This.
As shown in Figure 1-Figure 3, valve actuating mechanism 100 also includes valve rocker 61 and hydraulic tappet 62, and valve rocker 61 sets
It is equipped with valve rocker roller 611, the one end fits of the top of valve 11 and valve rocker 61, hydraulic tappet 62 and valve rocker 61
The other end cooperation, driving face 231 is resisted against on valve rocker roller 611.Thus, in rocker arm assembly 2 action, its bottom
Driving face 231 can promote valve rocker roller 611 drive valve rocker 61 action, valve rocker 61 so drive valve 11
Action is to open valve 11.
Hydraulic tappet 62 can be used for adjusting valve 11 gap, and the specific configuration of hydraulic tappet 62 and operation principle have been existing
Technology, and be widely used in this area, for example it is applied in vvl technology, therefore here hydraulic tappet 62 is not made in detail
Thin description.
In this some embodiment, the outside of two drive divisions 23 is respectively arranged with a supporting construction 5, drive division 23
Lateral surface is provided with three rollers 33.In the example of fig. 1 and 2, each valve mechanism 1 all includes two valves 11, corresponding
Ground, drive division 23, three rollers 33, supporting construction 5 and circular arc camber 521 are two, and a valve 11 corresponds to a drive
Dynamic portion 33, supporting construction 5 of 23, three rollers and a circular arc camber 521.Thus, it is possible to preferably supporting cam wheel
Axle 42, increases stability when valve actuating mechanism 100 runs.
It is appreciated that in the above-described embodiment, in order to ensure outer shaft cam 4231 and the first roller 31 and interior crown of roll
Wheel 4221 and the second roller 32 can keep contact condition constantly, prevent slip phenomenon, valve actuating mechanism 100 also has elasticity
Resetting structure 8, elastic reset structure 8 can flexibly push against the first roller 31 and the second roller 32 so that the first roller 31 often supports
Lean against on the outer peripheral face of outer shaft cam 4231 and the second roller 32 is often resisted against on interior axis cam 4221, for the technology of this area
The elastic reset knot of different structure, size, form for personnel, can be designed with the architectural characteristic according to above-mentioned rocker arm assembly 2
Structure 8, can be integrative-structure, can be Split type structure, as long as ensure that respective cams were contacted with the corresponding roller moment,
This, for a person skilled in the art it may be that easy to understand, is therefore not particularly limited here.For example, as Fig. 1 institute
Show, elastic reset structure 8 can be spring.
According to embodiments of the present invention vehicle is briefly described below.
Vehicle according to embodiments of the present invention includes the joining for electromotor according to described in the above embodiment of the present invention
Mechanism of qi structure 100.Thus, power performance according to embodiments of the present invention is good, and noxious gas emission is few, energy-conserving and environment-protective.
It should be appreciated that the other of vehicle according to embodiments of the present invention constitute such as electromotor, variator, differential
Device, brakes etc. have been all prior art and have been well known for ordinary skill in the art, therefore no longer detailed one by one here
Thin description.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
What combine in an appropriate manner in one or more embodiments or example.Additionally, this can be said by those skilled in the art
Different embodiments described in bright book or example are engaged and are combined.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of valve actuating mechanism for electromotor is it is characterised in that include:
Valve mechanism；
Rocker arm assembly, the substructure of described rocker arm assembly has driving face, and described driving face is suitable to drive valve mechanism
Valve moves along the direction parallel to valve centrage；
First roller, the second roller, described first roller and described second roller are all pivotally arranged on described rocker arm assembly；
Camshaft, described camshaft includes the interior axle being coaxially disposed and outer shaft, and described interior axle has with described interior axle synchronous rotary
Interior axis cam, described outer shaft has the outer shaft cam with described outer shaft synchronous rotary, and described outer shaft cam is against described first
Roller, the second roller described in described interior axle cam abutment；
For supporting the supporting structure of described camshaft；And
For adjusting the phase-regulating mechanism of described interior axle and described outer shaft relative phase；Wherein,
Described valve actuating mechanism also includes three rollers, and described three rollers are pivotally arranged on described rocker arm assembly, described
It is also configured with circular arc camber, described three rollers are rollably close on described circular arc camber on bearing structure；Or
Described valve actuating mechanism also includes spacer pin, and described spacer pin is located on described rocker arm assembly, and structure gone back by described supporting structure
Make sliding tray, described spacer pin is slidably fit in described sliding tray.
2. the valve actuating mechanism for electromotor according to claim 1 it is characterised in that
Described rocker arm assembly includes:
Two side plates, described two side plates are toward each other and interval setting；
Two drive divisions, described two drive divisions are respectively provided at the outside of described two side plates, the bottom surface structure of described drive division
Become described driving face；
Described first roller is two, and described two first rollers are respectively provided at the outside of described two side plates；Described second
Roller is one, and described second roller is located between described two side plates；Described three rollers are two, described two three
Roller is respectively provided at the outside of described two drive divisions.
3. the valve actuating mechanism for electromotor according to claim 2 is it is characterised in that described two side plate and described
Two the first rollers pass through the first bearing pin and are connected；Described two side plates are connected by the second bearing pin with described second roller；Institute
State two drive divisions to be connected by the 3rd bearing pin respectively with described two three rollers.
4. the valve actuating mechanism for electromotor according to claim 3 is it is characterised in that described first roller is positioned at described
One end of side plate, described second roller is located at the other end of described side plate.
5. the valve actuating mechanism for electromotor according to claim 3 is it is characterised in that described supporting structure is formed respectively
There are upper recess and lower concave part, the top surface of described upper recess supporting structure described in insertion upwards, described in the downward insertion of described lower concave part
The bottom surface of supporting structure, in described upper recess and described three rollers are accommodated in described lower concave part to wherein said camshaft supporting
Interior, the top surface of described lower concave part constitutes described circular arc camber.
6. the valve actuating mechanism for electromotor according to claim 5 is it is characterised in that described upper recess is semi arch
Shape, the diameter of described upper recess is roughly equal with the diameter of described outer shaft.
7. the valve actuating mechanism for electromotor according to claim 1 is it is characterised in that described outer shaft cam interference fit
On described outer shaft, described interior axle cam clearance coordinates on described outer shaft, described outer shaft is formed with stopper slot, described interior axle
Cam is connected by wearing the backing pin of described interior axis cam, described stopper slot and described interior axle.
8. the valve actuating mechanism for electromotor according to claim 1 is it is characterised in that also include:
Valve rocker and hydraulic tappet, described valve rocker is provided with valve rocker roller, the top of described valve with described
The one end fits of valve rocker, described hydraulic tappet is coordinated with the other end of described valve rocker, and described driving face is resisted against
On described valve rocker roller.
9. the valve actuating mechanism for electromotor according to any one of claim 1-8 is it is characterised in that described phase place is adjusted
Section mechanism is phaser.
10. a kind of vehicle is it is characterised in that include the distribution for electromotor according to any one of claim 1-9
Mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036327.4A CN103758604B (en) | 2014-01-23 | 2014-01-23 | Gas distributing mechanism for engine and car with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036327.4A CN103758604B (en) | 2014-01-23 | 2014-01-23 | Gas distributing mechanism for engine and car with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103758604A CN103758604A (en) | 2014-04-30 |
| CN103758604B true CN103758604B (en) | 2017-02-01 |
Family
ID=50525900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410036327.4A Expired - Fee Related CN103758604B (en) | 2014-01-23 | 2014-01-23 | Gas distributing mechanism for engine and car with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103758604B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT517815B1 (en) * | 2015-09-18 | 2019-10-15 | Avl List Gmbh | VARIABLE VALVE CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINES |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357079A (en) * | 1998-01-19 | 2002-07-03 | 达勒脱控股有限公司 | Cam and cam followers for engines |
| CN102046930A (en) * | 2008-05-29 | 2011-05-04 | 泰森克鲁普普里斯塔技术中心股份公司 | Adjustable camshaft arrangement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2378729A (en) * | 2001-08-18 | 2003-02-19 | Mechadyne Plc | Adjustable engine valve control system |
| JP4270253B2 (en) * | 2006-09-19 | 2009-05-27 | 日産自動車株式会社 | Variable valve mechanism for internal combustion engine |
| US20080078345A1 (en) * | 2006-09-28 | 2008-04-03 | Knauf Michael B | Phaser-actuated continuously variable valve actuation system with lost motion capability |
-
2014
- 2014-01-23 CN CN201410036327.4A patent/CN103758604B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357079A (en) * | 1998-01-19 | 2002-07-03 | 达勒脱控股有限公司 | Cam and cam followers for engines |
| CN102046930A (en) * | 2008-05-29 | 2011-05-04 | 泰森克鲁普普里斯塔技术中心股份公司 | Adjustable camshaft arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103758604A (en) | 2014-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103742219B (en) | For the valve actuating mechanism of engine and there is its vehicle | |
| CN103758601A (en) | Air distribution mechanism for engine and vehicle comprising same | |
| CN103939171B (en) | A kind of engine variable valve lift mechanism | |
| WO1995032359A1 (en) | Variable valve lift mechanism for internal combustion engine | |
| CN103758605B (en) | For motor distribution device and there is its vehicle | |
| CN203742691U (en) | Valve train for engine and automobile with same | |
| CN103758604B (en) | Gas distributing mechanism for engine and car with same | |
| CN103790669B (en) | For the valve actuating mechanism of engine and the vehicle with it | |
| CN103147818B (en) | Drive device with variable valve lift, engine and vehicle | |
| CN103758603B (en) | Valve mechanism for engine and vehicle with same | |
| CN103726898B (en) | For motor distribution device and there is its vehicle | |
| CN103775159B (en) | Air distribution mechanism for engine and vehicle with same | |
| CN103726894A (en) | Valve timing mechanism for engine and vehicle with same | |
| CN103726897B (en) | For the valve actuating mechanism of electromotor and the vehicle with it | |
| CN103775153B (en) | For the valve actuating mechanism of engine and the vehicle with it | |
| CN101305167B (en) | Method for the variable valve actuation of an internal combustion engine | |
| CN204627691U (en) | A kind of camshaft mechanism realizing cylinder deactivation of engine work | |
| CN103758598B (en) | For the valve actuating mechanism of engine and there is its vehicle | |
| CN103742222B (en) | For motor distribution device and there is its vehicle | |
| CN103742221B (en) | For motor distribution device and there is its vehicle | |
| CN203742696U (en) | Distribution mechanism for engine and vehicle with distribution mechanism | |
| CN106382137A (en) | Valve actuating mechanism for engine and cam of valve actuating mechanism | |
| CN103758602B (en) | For the valve actuating mechanism of engine and the vehicle with it | |
| CN103089364A (en) | Actuating mechanism of variable valve stroke drive device for engine | |
| CN103742215B (en) | For the valve actuating mechanism of electromotor and the vehicle with it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 |