CN103758604A - Gas distributing mechanism for engine and car with same - Google Patents
Gas distributing mechanism for engine and car with same Download PDFInfo
- Publication number
- CN103758604A CN103758604A CN201410036327.4A CN201410036327A CN103758604A CN 103758604 A CN103758604 A CN 103758604A CN 201410036327 A CN201410036327 A CN 201410036327A CN 103758604 A CN103758604 A CN 103758604A
- Authority
- CN
- China
- Prior art keywords
- roller
- valve
- outer shaft
- distribution device
- cam
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 230000000452 restraining effect Effects 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001095 motoneuron effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002000 scavenging effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011159 matrix material Substances 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
- 239000002341 toxic gas Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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 distribution device for motor and there is its vehicle.
Background technique
The distribution device of motor is for driving the switching of valve, and its port timing is the local optimum based on a certain narrow and small condition range of motor and determining generally, immobilize in the course of the work, and valve motion rule is determined by cam profile completely.But because cam profile is single, can not adjust valve motion rule according to motor actual conditions conditions of demand, can not the different operating conditions of simultaneous adaptation motor, oil consumption is higher, discharges poor, be unfavorable for improving the power performance of motor simultaneously, and general lift range variable technology can only change valve opening maximum lift, shifts gears more single, and complex structure, component are many, control loaded down with trivial details.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of above-mentioned technical problem of the prior art.For this reason, one object of the present invention is to propose a kind of distribution device for motor, and this distribution device can be realized the secondary opening of valve, can also extend the lasting time of valve opening simultaneously, and simple and compact for structure, less to motor effect of altitude.
Another object of the present invention is to propose a kind of vehicle with above-mentioned distribution device.
The distribution device for motor according to the embodiment of the present invention, comprising: valve mechanism; Rocker arm assembly, the substructure of described rocker arm assembly has driving profile, and described driving profile is suitable for driving the valve of valve mechanism to move along the direction that is parallel to valve center line; The first roller, the second roller, described the first roller and described the second roller are all located on described rocker arm assembly pivotly; Camshaft, described camshaft comprises interior axle and the outer shaft of coaxial setting, described interior axle has the interior axis cam with described interior axle synchronous rotary, described outer shaft has the outer shaft cam with described outer shaft synchronous rotary, described outer shaft cam is against described the first roller, and described interior axis cam is against described the second roller; For supporting the supporting structure of described camshaft; And for regulating the phase-regulating mechanism of described interior axle and described outer shaft relative phase; Wherein, described distribution device also comprises three rollers, and described three rollers is located on described rocker arm assembly pivotly, is also configured with circular arc camber on described supporting structure, and described three rollers is rollably close on described circular arc camber; Or described distribution device also comprises position limit pin, described position limit pin is located on described rocker arm assembly, is also configured with sliding-groove on described supporting structure, and described position limit pin is engaged in described sliding-groove slidably.
Distribution device for motor according to the above embodiment of the present invention, employing comprise coaxial setting shown in axle and shown in the camshaft of outer shaft, secondary opening of air valve shown in can realizing and shown in the object that extends of valve opening duration, when secondary opening of air valve shown in realizing, can realize scavenging function, can meet the demand of motor (for example, petrol engine machine, diesel engine) to the valve motion rule of different operating modes.According to the distribution device of the embodiment of the present invention and rocker arm assembly compact structure thereof, required arrangement space is little, little to motor effect of altitude simultaneously, and oil cake arrange is relatively simple and mechanical loss is little.
According to one embodiment of present invention, described rocker arm assembly comprises: two side plates, described two side plates toward each other and interval arrange; Two drive portions, described two drive portions are located at respectively the outside of described two side plates, and the bottom surface of described drive portion forms described driving profile; Described the first roller is two, and described two the first rollers are located at respectively the outside of described two side plates; Described the second roller is one, and described the second roller is located between described two side plates; Described three rollers is two, and described two three rollers are located at respectively the outside of described two drive portions.
According to one embodiment of present invention, described two side plates are connected by the first bearing pin with described two the first rollers; Described two side plates are connected by the second bearing pin with described the second roller; Described two drive portions are connected by the 3rd bearing pin respectively with described two three rollers.
According to one embodiment of present invention, described the first roller is positioned at one end of described side plate, and described the second roller is positioned at the other end of described side plate.
According to one embodiment of present invention, described supporting structure is formed with respectively upper recess and lower dent, described upper recess upwards connects the end face of described supporting structure, described lower dent connects the bottom surface of described supporting structure downwards, wherein said camshaft supporting in described upper recess and described three rollers be accommodated in described lower dent, the end face of described lower dent forms described circular arc camber.
According to one embodiment of present invention, described upper recess is semicircular arc, and the diameter of the diameter of described upper recess and described camshaft (outer shaft) about equally.
According to one embodiment of present invention, described outer shaft cam is interference fitted on described outer shaft, described interior axis cam Spielpassung is on described outer shaft, on described outer shaft, be formed with restraining groove, described interior axis cam is connected by wearing the backing pin of described interior axis cam, described restraining groove and described interior axle.
According to one embodiment of present invention, the described distribution device for motor also comprises: valve rocker and hydraulic tappet, on described valve rocker, be provided with valve rocker roller, the top of described valve coordinates with one end of described valve rocker, described hydraulic tappet coordinates with the other end of described valve rocker, and described driving profile is resisted against on described valve rocker roller.
According to one embodiment of present invention, described phase-regulating mechanism is phase discriminator.
According to the vehicle of the embodiment of the present invention, also comprise according to the distribution device for motor in the above embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is according to an embodiment of the invention for the structural representation of the distribution device of motor;
Fig. 2 is according to an embodiment of the invention for the side view of the distribution device of motor;
Fig. 3 is according to an embodiment of the invention for the structural representation at the rocker arm assembly place of the distribution device of motor;
Fig. 4 is according to an embodiment of the invention for the structural representation of the supporting structure of the distribution device of motor;
Fig. 5 is according to the structural representation of the camshaft of the distribution device for motor of the embodiment of the present invention;
Fig. 6 is in accordance with another embodiment of the present invention for the structural representation of the distribution device of motor;
Fig. 7 is in accordance with another embodiment of the present invention for the side view of the distribution device of motor;
Fig. 8 is in accordance with another embodiment of the present invention for the structural representation at the rocker arm assembly place of the distribution device of motor;
Fig. 9 is in accordance with another embodiment of the present invention for the structural representation of the supporting structure of the distribution device of motor.
Reference character:
The first roller 31, the first roller 32, three rollers 33, position limit pin 34,
Camshaft 42,
Valve rocker 61, valve rocker roller 611, hydraulic tappet 62,
The first bearing pin 71, the second bearing pin 72, the 3rd bearing pin 73,
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but contact by the other feature between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
The body group of motor is the support of motor, is the matrix of connecting rod, distribution device and the assembling of each system.In related domain, usually, body group is mainly comprised of cylinder block, cylinder head, cylinder head gasket and oil sump etc., oil sump is generally located at the bottom of cylinder block, cylinder head is located at the top of cylinder block, cylinder head gasket is located between the end face of cylinder block and the bottom surface of cylinder head, for sealing the gap between the two.
Cylinder head forms firing chamber together with cylinder with piston head, the top of firing chamber has suction port and relief opening, and the valve of valve mechanism is located in cylinder cap and sealing suction port and relief opening.For existing general motor, adopt the two valve forms of entering scene 2 more, minority also has the valve form that adopts one-in-and-one-out or three to enter scene 2.
For same motor, generally all there is multiple different operating mode, such as low speed small load condition, high speed high load working condition etc., when motor is under different operating modes, motor externally moment of torsion and the power of output is different, the content of the harmful gas of motor discharge is simultaneously also different, and the distribution device of motor, according to the requirement of the work cycle of carrying out in each cylinder and firing order, regularly opens and closes intake valve and exhaust valve.
Usually, distribution device can regulate the lift amount of valve, but regulative mode is single, can not meet well usage requirement.According to the distribution device of the embodiment of the present invention, can realize the secondary opening of valve, opening time that simultaneously also can proper extension valve, regulative mode is various, thereby meets better the requirement of different operating modes.
Being appreciated that can be for driving into the valve event of gas side according to the distribution device of the embodiment of the present invention, can certainly be for driving the valve event of exhaust side, or be used in air inlet side and exhaust side to drive corresponding valve event simultaneously.Preferably, according to the distribution device of the embodiment of the present invention, for driving the valve event of exhaust side, in the following description, take this distribution device is example for driving the valve of exhaust side.
Below with reference to Fig. 1-Fig. 9, describe in detail according to the distribution device 100 for motor of the embodiment of the present invention.
According to the distribution device 100 for motor of the embodiment of the present invention comprise valve mechanism 1, rocker arm assembly 2, the first roller 31, the second roller 32, three rollers 33 or position limit pin 34, comprise the interior axle 422 of coaxial setting and the camshaft 42 of outer shaft 423, for supporting the supporting structure 5 of camshaft 42 and for regulating the phase-regulating mechanism (scheming not shown) of interior axle 422 and outer shaft 423 relative phases.
Wherein, valve mechanism 1 has been prior art, and known by those skilled in the art, for example valve mechanism 1 can comprise valve 11, valve 11 can move back and forth up and down to open or close along the center line of valve 11 suction port or the relief opening of firing chamber in valve guide bushing, for these, can adopt the part of identical setting with prior art, be not described in detail here.
As shown in Fig. 2, Fig. 3, Fig. 7 and Fig. 8; the substructure of rocker arm assembly 2 has the profile 231 of driving; drive profile 231 to be suitable for driving the valve 11 of valve mechanism 1 to move along the direction that is parallel to valve 11 center lines, driving profile 231 can be boot last face, but is not limited to this.Should be appreciated that those skilled in the art can be according to actual needs and flexible design drives the concrete line style of profile 231, be not limited to above-mentioned boot last face.
The first roller 31, the second roller 32 are all located on rocker arm assembly 2 pivotly.That is to say, the first roller 31 is located on rocker arm assembly 2 and can pivotable with respect to rocker arm assembly 2, and the second roller 32 is located on rocker arm assembly 2 and can pivotable with respect to rocker arm assembly 2.
As shown in Fig. 1-Fig. 3, Fig. 5 and Fig. 6-Fig. 8, camshaft 42 comprises interior axle 422 and the outer shaft 423 of coaxial setting, and interior axle 422 has the interior axis cam 4221 with interior axle 422 synchronous rotaries, and outer shaft 423 has the outer shaft cam 4231 with outer shaft 423 synchronous rotaries.
Shown in Fig. 1, Fig. 5 and Fig. 6, interior axle 422 is embedded in outer shaft 423 and interior axle 422 can rotate relatively with outer shaft 423, also can synchronous rotary.Backing pin 4222 can be in the interior slip of this restraining groove 4232, restraining groove 4232 can limit the rotation angle of interior axis cam 4221 relative outer shafts 423, by the position-limiting action of restraining groove 4232, interior axle 422 can be adjustable continuously in several angle with the relative phase of outer shaft 423.
According to some embodiments of the present invention, each in interior axis cam 4221 and outer shaft cam 4231 all has large basic circle (the A section in Fig. 2 and Fig. 7), little basic circle (the B section in Fig. 2 and Fig. 7) and is connected to the changeover portion (the C section in Fig. 2 and Fig. 7) between large basic circle and little basic circle, but be not limited to this, for a person skilled in the art, can be according to actual needs and the molded line of adaptive settings cam.
For example, at the large basic circle of two kinds of cams (being outer shaft cam 4231 and interior axis cam 42) and corresponding roller (i.e. the first roller 31 or the second roller 32), when contacting, the lift amount of valve 11 can be maximum.That is to say, the large basic circle of outer shaft cam 4231 and the first roller 31 against contact and the large basic circle of interior axis cam 4221 and the second roller 32 when contacting, valve 11 is opened lift state in maximum.
While existing the little basic circle of at least one cam to contact with corresponding roller in two kinds of cams, valve 11 can be in closed condition, and the lift amount of valve 11 is minimum.For example, the large basic circle of outer shaft cam 4231 and the first roller 31 against contact and the little basic circle of interior axis cam 4221 and the second roller 32 when contacting, or the little basic circle of outer shaft cam 4231 and the first roller 31 against contact and the large basic circle of interior axis cam 4221 and the second roller 32 when contacting, valve 11 can be in closed condition.
And the changeover portion of two kinds of cams contact with corresponding roller or one for changeover portion, another is when contact with corresponding roller for large basic circle, valve 11 lift amount can be between zero lift and maximum lift.For example, the changeover portion of outer shaft cam 4231 and the first roller 31 against contact and the changeover portion of interior axis cam 4221 and the second roller 32 when contacting, or the changeover portion of outer shaft cam 4231 and the first roller 31 against contact and the large basic circle of interior axis cam 4221 and the second roller 32 when contacting, valve 11 lift amount can be between zero lift and maximum lift.
But, be to be understood that, the present invention is not limited to this, for a person skilled in the art, reading on the basis of specification content disclosed herein molded line that obviously can the above-mentioned two kinds of cams of flexible design, when the position contacting with corresponding roller at two kinds of cam profiles changes; the lift amount of rocker arm assembly 2 action rear driving valves 11 also can adaptations, this for a person skilled in the art, should be hold intelligible.
In the embodiment as shown in Fig. 1-Fig. 5, distribution device 100 also comprises that three rollers 33, the three rollers 33 are located on rocker arm assembly 2 pivotly, and three rollers 33 is located on rocker arm assembly 2 and can pivotable with respect to rocker arm assembly 2.
On supporting structure 5, be configured with circular arc camber 521, the three rollers 33 and be rollably close on circular arc camber 521, when the driven action of rocker arm assembly 2, three rollers 33 rolls along circular arc camber 521.That is to say, adopt three rollers 33 and the cooperating structure of circular arc camber 521 can limit the movement locus of rocker arm assembly 2, the while can keep the stability of rocker arm assembly 2 well, and simple in structure.Meanwhile, this adopts circular arc camber 521, can guarantee that valve 11 generates the smooth-going, round and smooth of rule, reduces the impact of distribution device 100.Be understandable that, distribution device 100 can be adjusted for the type of different motors the parameter of circular arc camber 521.
In the embodiment as shown in Fig. 6-Fig. 9, distribution device 100 also comprises position limit pin 34.Position limit pin 34 can be located on rocker arm assembly 2.
On supporting structure 5, be also configured with sliding-groove 53, position limit pin 34 is engaged in sliding-groove 53 slidably.When the driven action of rocker arm assembly 2, position limit pin 34 moves along sliding-groove 53.That is to say, adopt position limit pin 34 and the cooperating structure of sliding-groove 53 can limit the movement locus of rocker arm assembly 2, the while can keep the stability of rocker arm assembly 2 well, and simple in structure.Meanwhile, this adopts sliding-groove 53, can guarantee that valve 11 generates the smooth-going, round and smooth of rule, reduces the impact of distribution device 100.Be understandable that, distribution device 100 can be adjusted for the type of different motors the form parameter of sliding-groove 53.
Phase-regulating mechanism is for regulating the relative phase of outer shaft 423 and interior axle 422, thus the relative phase of change outer shaft cam 4231 and interior axis cam 4221.According to one embodiment of present invention, phase-regulating mechanism can be phase discriminator, phase discriminator can be single rotor phase discriminator, only has a rotor, rotor can be connected with in interior axle 422 and outer shaft 423, the stator of phase discriminator can in axle 422 be connected with another in outer shaft 423, to regulate the phase place of relative another axle of an axle.Rotor with phase discriminator is connected with interior axle 422, and stator and outer shaft 423 are connected to example, and phase discriminator can change the relative phase of interior axle 422, when phase discriminator regulates clockwise, valve 11 is realized secondary opening lift and is continued to increase, and when phase discriminator regulates counterclockwise, the 11 unlatching durations of valve increase gradually.Should be appreciated that phase discriminator regulates the relative phase of two axles for prior art, does not make specified otherwise to the specific works principle of the concrete structure of phase discriminator, phase discriminator and adjustment process here.
Be appreciated that, owing to driving homonymy valve 11 to adopt coaxial interior axle 422 and the outer shaft 423 arranging according to the distribution device 100 of the embodiment of the present invention, therefore according to the distribution device 100 of the embodiment of the present invention, by phase discriminator, regulate after the relative phase of these two axles, can realize the secondary opening of valve 11 and extend 11 opening times of valve.
Particularly, in the process of camshaft 42 rotations, there will be the large basic circle of two kinds of above-mentioned cams all to contact with corresponding roller, now the lift amount of valve 11 can be maximum, the situation that simultaneously also there will be a kind of large basic circle of cam and the changeover portion of corresponding roller contact and another kind of cam to contact with corresponding roller, now the relative maximum lift of valve 11 lift amount reduces to some extent, valve 11 has breakdown action twice like this, wherein once be opened into maximum lift, the relative maximum lift of lift of another unlatching reduces, and has realized the object of valve 11 secondary openings.
Further, when the interval of valve 11 secondary openings is larger, the valve-closing that approaches air inlet side as valve 11 secondary openings of exhaust side constantly time, can realize scavenging function, thereby can improve low engine speed moment of torsion and transient response performance.If during valve 11 secondary opening of exhaust side, can strengthen heat management, realize rapid warming-up, engine cold-start difficult problem while solving low compression ratio, and can reduce motor discharge, improve engine cold idle stability and running smoothness and the effects such as moment of torsion control in dpf regeneration stage.In the concrete time lag of controlling valve 11 secondary openings, can realize by adaptability design cam profile, but be not limited to this.
At phase discriminator, regulate after the relative phase of two axles, the relative phase of interior axis cam 4221 and outer shaft cam 4231 changes, now can realize and increase valve 11 open-interval objects, for example, after having regulated the relative phase of two axles, interior axis cam 4221 there will be and continues the situation that large basic circle contacts with corresponding roller with outer shaft cam 4231, now can greatly extend valve 11 and open the endurance.
Thus, distribution device 100 for motor according to the above embodiment of the present invention, employing comprises the interior axle 422 of coaxial setting and the camshaft 42 of outer shaft 423, can realize valve 11 secondary openings and valve 11 and open the object of duration prolongation, when realizing valve 11 secondary opening, scavenging function can be realized, the demand of motor (for example, petrol engine machine, diesel engine) to the valve motion rule of different operating modes can be met.According to the distribution device 100 of the embodiment of the present invention and rocker arm assembly 22 compact structures thereof, required arrangement space is little, little to motor effect of altitude simultaneously, and oil cake arrange is relatively simple and mechanical loss is little.
Below with reference to Fig. 1-Fig. 9, describe the distribution device 100 in diagram in detail.
As shown in Fig. 3 and Fig. 8, rocker arm assembly 2 can comprise two side plates 21 and two drive portions 23.Two side plates 21 toward each other and interval arrange.Between two side plates 21, can be connected by middle interconnecting piece.Two drive portions 23 are located at respectively the outside of two side plates 21, and the bottom surface of drive portion 23 forms driving profile 231.As shown in Figure 2 and Figure 7, the bottom surface of drive portion 23 is that cambered surface drives profile 231 to form, the cambered surface here can be divided into multistage connected subarc face in turn, this driving profile 231 can be configured to boot last, can reduce thus valve 11 movement velocitys, acceleration and jerk value, guarantee the stability of distribution device 100, can reduce design of cam contour line required precision simultaneously, cost-saving, but be not limited to this.
The first roller 31 is two, and two the first rollers 31 are located at respectively the outside of two side plates 21; The second roller 32 is one, and the second roller 32 is located between two side plates 21.Correspondingly, outer shaft cam 4231 is two, and interior axis cam 4221 is one, and interior axis cam 4221 is between two outer shaft cam 4231.
Three rollers 33 is two, and two three rollers 33 can be located at respectively the outside of two drive portions 23.Correspondingly, in supporting structure 5, be configured with respectively and two circular arc cambers that three rollers 33 coordinates 521.As shown in Figure 4, supporting structure 5 is formed with respectively upper recess 51 and lower dent 52, upper recess 51 upwards connects the end face of supporting structure 5, lower dent 52 connects the bottom surface of supporting structure 5 downwards, wherein camshaft 42 is bearing in upper recess 51 and three rollers 33 is accommodated in lower dent 52, and the end face of lower dent 52 forms circular arc camber 521.Thus, supporting structure 5 supporting cam wheel axle 42 better.
Further, as shown in Figure 2, upper recess 51 can be semicircular arc, the diameter of upper recess 51 and camshaft 42(outer shaft 423) diameter about equally, thereby play the effect of supporting better outer shaft 423, outer shaft 423 is carried out to axial limiting.
As shown in Figure 4, in these some embodiments, it is tabular that supporting structure 5 is configured to rectangular, and supporting structure 5 is provided with the upper notch corresponding with camshaft 42 51 and the lower recess 52 corresponding with three rollers 33, simple in structure thus, easy to process, cost is low, takes up room little, convenient layout.
Wherein, supporting structure 5 is located in the body group of motor.Here, need explanation a bit, in related domain, body group mainly comprises the parts such as cylinder block, cylinder head, cylinder head gasket and oil sump, but in the utility model, body group should be made broad understanding, can be understood as this body group and not only comprises the included parts of above-mentioned traditional sense upper machine body group, can also comprise some attached assemblys etc.For example, in superincumbent description, " supporting structure 5 is located in the body group of motor ", can be understood as supporting structure 5 and be directly arranged in body group as in cylinder head, or can be fixedly installed intermediate member in cylinder head, supporting structure 5 is located on this intermediate member, and to can be understood as be a part for body group for the intermediate member here.
Further, as shown in Figure 3, two side plates 21 can be connected by the first bearing pin 71 with two the first rollers 31, and two side plates 21 can be connected by the second bearing pin 72 with the second roller 32, and two drive portions 23 can be connected by the 3rd bearing pin 73 respectively with two three rollers 33.Thus, the layout of three rollers 33 is more flexible.The Placement pivotly of certain three rollers 33 and rocker arm assembly 2, is not limited to this, three rollers 33 also can with the first roller 31 and the second roller 32 in a coaxial setting.In other words, three rollers also can be connected with rocker arm assembly 2 with in the second bearing pin 72 one pivotly by the first bearing pin 71, thereby increases the compactedness of distribution device 100, and minimizing component are cost-saving.
As shown in Figure 3, side plate 21 can form " V " type.The first roller 31 can be positioned at one end of side plate 21, and the second roller 32 can be positioned at the other end of side plate 21, and structure is simpler, compact thus, and component still less.
As shown in Figure 7 and Figure 8, position limit pin 34 can be integrally formed with the 3rd bearing pin 73, and the two ends of the 3rd bearing pin 73 are extended to both sides respectively and exceeded two rocking arm portions 211 to form position limit pin 34.Position limit pin 34 can be two.Correspondingly, as shown in Figure 9, in supporting structure 5, can be provided with circular arc sliding-groove 53, position limit pin 34 can be in the interior slip of sliding-groove 53.Wherein position limit pin 34 can be for stepped, and the Its Track Design that the concrete shape of sliding-groove 53 can be required according to rocker arm assembly 2, is not limited to this.
As shown in Figure 1-Figure 3, distribution device 100 also comprises valve rocker 61 and hydraulic tappet 62, on valve rocker 61, be provided with valve rocker roller 611, the top of valve 11 coordinates with one end of valve rocker 61, hydraulic tappet 62 coordinates with the other end of valve rocker 61, drives profile 231 to be resisted against on valve rocker roller 611.Thus, when rocker arm assembly 2 action, the driving profile 231 bottom it can promote valve rocker rollers 611 and drive valve rocker 61 actions, and valve rocker 61 and then drive valve 11 move to open valve 11.
In these some embodiments, the outside of two drive portions 23 is respectively arranged with a supporting structure 5, and the outer side surface of drive portion 23 is provided with three rollers 33.In the example of Fig. 1 and Fig. 2, each valve mechanism 1 includes two valves 11, accordingly, drive portion 23, three rollers 33, supporting structure 5 and circular arc camber 521 are two, and the corresponding drive portion of valve 11 23, three rollers 33, supporting structure 5 and a circular arc camber 521.Thus, supporting cam wheel axle 42 better, the stability while increasing distribution device 100 operation.
Be appreciated that, in the above-described embodiment, in order to guarantee that outer shaft cam 4231 and the first roller 31 and interior axis cam 4221 and the second roller 32 can keep in touch state constantly, prevent slip phenomenon, distribution device 100 also has elastic reset 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 is often resisted against on the outer circumferential face of outer shaft cam 4231 and the second roller 32 is often resisted against on interior axis cam 4221, for a person skilled in the art, can design different structure according to the structural characteristics of above-mentioned rocker arm assembly 2, size, the elastic reset structure 8 of form, it can be integrative-structure, it can be Split type structure, as long as can guarantee that respective cams contacts constantly with corresponding roller, this for a person skilled in the art, should be that appearance is intelligible, therefore do not make particular determination here.For example, as shown in Figure 1, elastic reset structure 8 can be spring.
Below simply describe according to the vehicle of the embodiment of the present invention.
According to the vehicle of the embodiment of the present invention, comprise according to the distribution device 100 for motor of describing in the above embodiment of the present invention.Thus, good according to the vehicle power of the embodiment of the present invention, noxious gas emission is few, energy-conserving and environment-protective.
Should be understood that, according to other configuration example of the vehicle of the embodiment of the present invention as motor, speed changer, differential mechanism, braking system etc. be all prior art and being well known for ordinary skill in the art, therefore describe in detail no longer one by one here.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.In addition, those skilled in the art can engage the different embodiments that describe in this specification or example and combine.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (10)
1. for a distribution device for motor, it is characterized in that, comprising:
Valve mechanism;
Rocker arm assembly, the substructure of described rocker arm assembly has driving profile, and described driving profile is suitable for driving the valve of valve mechanism to move along the direction that is parallel to valve center line;
The first roller, the second roller, described the first roller and described the second roller are all located on described rocker arm assembly pivotly;
Camshaft, described camshaft comprises interior axle and the outer shaft of coaxial setting, described interior axle has the interior axis cam with described interior axle synchronous rotary, described outer shaft has the outer shaft cam with described outer shaft synchronous rotary, described outer shaft cam is against described the first roller, and described interior axis cam is against described the second roller;
For supporting the supporting structure of described camshaft; And
For regulating the phase-regulating mechanism of described interior axle and described outer shaft relative phase; Wherein,
Described distribution device also comprises three rollers, and described three rollers is located on described rocker arm assembly pivotly, is also configured with circular arc camber on described supporting structure, and described three rollers is rollably close on described circular arc camber; Or
Described distribution device also comprises position limit pin, and described position limit pin is located on described rocker arm assembly, is also configured with sliding-groove on described supporting structure, and described position limit pin is engaged in described sliding-groove slidably.
2. the distribution device for motor according to claim 1, is characterized in that,
Described rocker arm assembly comprises:
Two side plates, described two side plates toward each other and interval arrange;
Two drive portions, described two drive portions are located at respectively the outside of described two side plates, and the bottom surface of described drive portion forms described driving profile;
Described the first roller is two, and described two the first rollers are located at respectively the outside of described two side plates; Described the second roller is one, and described the second roller is located between described two side plates; Described three rollers is two, and described two three rollers are located at respectively the outside of described two drive portions.
3. the distribution device for motor according to claim 2, is characterized in that, described two side plates are connected by the first bearing pin with described two the first rollers; Described two side plates are connected by the second bearing pin with described the second roller; Described two drive portions are connected by the 3rd bearing pin respectively with described two three rollers.
4. the distribution device for motor according to claim 3, is characterized in that, described the first roller is positioned at one end of described side plate, and described the second roller is positioned at the other end of described side plate.
5. the distribution device for motor according to claim 3, it is characterized in that, described supporting structure is formed with respectively upper recess and lower dent, described upper recess upwards connects the end face of described supporting structure, described lower dent connects the bottom surface of described supporting structure downwards, wherein said camshaft supporting in described upper recess and described three rollers be accommodated in described lower dent, the end face of described lower dent forms described circular arc camber.
6. the distribution device for motor according to claim 5, is characterized in that, described upper recess is semicircular arc, and the diameter of the diameter of described upper recess and described camshaft (outer shaft) about equally.
7. the distribution device for motor according to claim 1, it is characterized in that, described outer shaft cam is interference fitted on described outer shaft, described interior axis cam Spielpassung is on described outer shaft, on described outer shaft, be formed with restraining groove, described interior axis cam is connected by wearing the backing pin of described interior axis cam, described restraining groove and described interior axle.
8. the distribution device for motor according to claim 1, is characterized in that, also comprises:
Valve rocker and hydraulic tappet, on described valve rocker, be provided with valve rocker roller, the top of described valve coordinates with one end of described valve rocker, and described hydraulic tappet coordinates with the other end of described valve rocker, and described driving profile is resisted against on described valve rocker roller.
9. according to the distribution device for motor described in any one in claim 1-8, it is characterized in that, described phase-regulating mechanism is phase discriminator.
10. a vehicle, is characterized in that, comprises according to the distribution device for motor described in any one in claim 1-9.
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 true CN103758604A (en) | 2014-04-30 |
| CN103758604B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291460A (en) * | 2015-09-18 | 2018-07-17 | Avl里斯脱有限公司 | Variable valve control apparatus for internal combustion engine |
Citations (5)
| 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 |
| US20040200446A1 (en) * | 2001-08-18 | 2004-10-14 | Ian Methley | Adjustable valve control system with twin cams and cam lift summation lever |
| US20080066702A1 (en) * | 2006-09-19 | 2008-03-20 | Nissan Motor Co., Ltd. | Variable valve actuation mechanism for an internal combustion engine |
| US20080078346A1 (en) * | 2006-09-28 | 2008-04-03 | Jongmin Lee | System for selectively varying engine valve open duration |
| 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 |
-
2014
- 2014-01-23 CN CN201410036327.4A patent/CN103758604B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| US20040200446A1 (en) * | 2001-08-18 | 2004-10-14 | Ian Methley | Adjustable valve control system with twin cams and cam lift summation lever |
| US20080066702A1 (en) * | 2006-09-19 | 2008-03-20 | Nissan Motor Co., Ltd. | Variable valve actuation mechanism for an internal combustion engine |
| US20080078346A1 (en) * | 2006-09-28 | 2008-04-03 | Jongmin Lee | System for selectively varying engine valve open duration |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291460A (en) * | 2015-09-18 | 2018-07-17 | Avl里斯脱有限公司 | Variable valve control apparatus for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103758604B (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9181822B2 (en) | Variably operated valve system for multi-cylinder internal combustion engine and control apparatus for variably operated valve system | |
| CN103758605B (en) | For motor distribution device and there is its vehicle | |
| 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 | |
| CN105715323B (en) | A kind of engine valve movement switching mechanism | |
| CN103306776B (en) | For the variable air valve lift apparatus of motor, motor and vehicle | |
| CN203742691U (en) | Valve train for engine and automobile with same | |
| CN103147818B (en) | Drive device with variable valve lift, engine and vehicle | |
| EP1337742B1 (en) | Variable duration camshaft | |
| CN103726898B (en) | For motor distribution device and there is its vehicle | |
| CN103790669A (en) | Valve mechanism for engine and vehicle comprising valve mechanism | |
| CN103758604A (en) | Gas distributing mechanism for engine and car with same | |
| CN103726894A (en) | Valve timing mechanism for engine and vehicle with same | |
| CN103742221B (en) | For motor distribution device and there is its vehicle | |
| CN205445713U (en) | Engine valve conversion of motion mechanism | |
| CN103742222B (en) | For motor distribution device and there is its vehicle | |
| CN103758603A (en) | Valve mechanism for engine and vehicle with same | |
| CN204283544U (en) | A kind of continuous variable valve stroke mechanism | |
| CN103775153A (en) | Air distribution mechanism for engine and vehicle with same | |
| CN103775159A (en) | Air distribution mechanism for engine and vehicle with same | |
| CN203742696U (en) | Distribution mechanism for engine and vehicle with distribution mechanism | |
| CN103775160A (en) | Air distribution mechanism for engine and vehicle with same | |
| CN103726897A (en) | Valve timing mechanism for engine and vehicle with same | |
| CN103758602A (en) | Valve mechanism for engine and vehicle with same | |
| CN103742215A (en) | Valve timing mechanism for engine and vehicle with the same |
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 |
Granted publication date: 20170201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |