CN103758601B - For the valve actuating mechanism of engine and there is its vehicle - Google Patents
For the valve actuating mechanism of engine and there is its vehicle Download PDFInfo
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- CN103758601B CN103758601B CN201310745941.3A CN201310745941A CN103758601B CN 103758601 B CN103758601 B CN 103758601B CN 201310745941 A CN201310745941 A CN 201310745941A CN 103758601 B CN103758601 B CN 103758601B
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Abstract
The invention discloses a kind of valve actuating mechanism for engine and there is its vehicle. This valve actuating mechanism, comprising: valve mechanism; Rocker arm assembly, the substructure of rocker arm assembly has driving profile, drives profile to be suitable for driving the valve of valve mechanism to move along the direction that is parallel to valve center line; Roller, roller is located on rocker arm assembly pivotly; Integrated push rod, integrated push rod is connected pivotly with rocker arm assembly; The first camshaft and the second camshaft, the first camshaft has the first cam and the second camshaft has the second cam, the first cam is against roller, and the outer peripheral face of the second cam moves against the length direction that coordinates to drive integrated push rod edge to be parallel to integrated push rod with integrated push rod; And for regulating the phase-regulating mechanism of the first camshaft and the second camshaft relative phase. Valve actuating mechanism of the present invention can be realized the secondary opening of valve, can also extend the lasting time of valve opening simultaneously, and simple in structure, and parts are few.
Description
Technical field
The present invention relates to automobile construction field, especially relate to a kind of valve actuating mechanism for engine and there is its vehicle.
Background technology
The valve actuating mechanism of engine is for driving the switching of valve, and its port timing is generally based on a certain narrow and small operating mode model of engineThe local optimum of enclosing and determining, immobilize in the course of the work, and valve motion rule is determined by cam profile completely. ButBe because cam profile is single, can not adjust valve motion rule according to engine actual condition conditions of demand, can not be simultaneouslyAdapt to engine different operating condition, oil consumption is higher, discharges poorly, is unfavorable for improving the power performance of engine simultaneously,And general lift range variable technology can only change valve opening maximum lift, shifts gears more single, and complex structure,Parts 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 valve actuating mechanism for engine, and this valve actuating mechanism can be realizedThe secondary opening of valve, can also extend the lasting time of valve opening simultaneously, and simple in structure, and parts are few.
Another object of the present invention is to propose a kind of vehicle with above-mentioned valve actuating mechanism.
According to the valve actuating mechanism for engine of the embodiment of the present invention, comprising: valve mechanism; Rocker arm assembly, described rocking armThe substructure of assembly has driving profile, and described driving profile is suitable for driving the valve of described valve mechanism along being parallel in valveThe direction motion of heart line; Roller, described roller is located on described rocker arm assembly pivotly; Integrated push rod, described integrated pushing awayBar is connected pivotly with described rocker arm assembly; The first camshaft and the second camshaft, it is first protruding that described the first camshaft hasWheel and described the second camshaft have the second cam, and described the first cam is against described roller, the outer peripheral face of described the second camMove against the length direction that coordinates to drive described integrated push rod edge to be parallel to integrated push rod with described integrated push rod; And useIn the phase-regulating mechanism that regulates described the first camshaft and described the second camshaft relative phase.
Can realize secondary opening of air valve and valve opening duration according to the valve actuating mechanism for engine of the embodiment of the present inventionThe object increasing, in the time realizing secondary opening of air valve, can realize scavenging function or improve internal EGR, simultaneously according to thisIts rocker arm assembly of the valve actuating mechanism of bright embodiment and integrated push rod are simpler, compact, and parts are few, and cost is low.
In addition, according to the valve actuating mechanism for engine of the embodiment of the present invention, can also there is following additional technical feature:
According to one embodiment of present invention, described rocker arm assembly comprises: two rocking arm portions and middle arm portions, described twoIndividual rocking arm portion be located at respectively described in the middle of the bottom of arm portions, described two rocking arm portions are oppositely arranged and are protruding along first and secondAxially being spaced apart from each other of wheel shaft.
According to one embodiment of present invention, described rocker arm assembly also comprises: drive division, described drive division be located at each described inThe bottom of rocking arm portion, described drive division is configured to plates and bottom surface is that cambered surface is to form described driving profile.
According to one embodiment of present invention, the two ends of described middle arm portions are respectively arranged with described roller and described centreTwo rollers of arm portions and this are connected by the first bearing pin.
According to one embodiment of present invention, described two rocking arm portions and to be positioned at the integrated push rod of these two rocking arm portion both sides logicalCrossing the second bearing pin is connected.
According to one embodiment of present invention, described integrated push rod comprises:
Push rod body, ram seat and push rod roller, described ram seat is located at one end of described push rod body, and described ram seat is" U " shape, described push rod roller is located between the two side of described ram seat pivotly, and the outer peripheral face of described the second cam supportsBy described push rod roller.
According to one embodiment of present invention, the described valve actuating mechanism for engine also comprises: support, described supportBe used for supporting described the first camshaft and described the second camshaft; On described support, be provided with limited block, on described limited blockBe integrated with spring mounting seat, and be arranged with spring on described push rod body, one end of described spring is against described ram seat and anotherOne end is engaged in described spring mounting seat, and described push rod body runs through described limited block.
According to one embodiment of present invention, described push rod roller is connected by the 3rd bearing pin with the two side of described ram seat.
According to one embodiment of present invention, described phase-regulating mechanism is phaser.
According to the vehicle of the embodiment of the present invention, also comprise according to the valve actuating mechanism for engine in the above embodiment of the present invention.
Brief description of the drawings
Fig. 1 is according to the stereogram of the valve actuating mechanism of the embodiment of the present invention;
Fig. 2 is the side view of valve actuating mechanism shown in Fig. 1;
Fig. 3 is according to the structural representation of the rocker arm assembly of the valve actuating mechanism of the embodiment of the present invention;
Fig. 4 is the decomposition explosion figure according to the integrated push rod of the valve actuating mechanism of the embodiment of the present invention.
Reference numeral:
Valve actuating mechanism 100,
Valve mechanism 1, valve 11,
Rocker arm assembly 2, rocking arm portion 22, middle arm portions 24, drive division 23, drive profile 231,
Roller 31,
The first camshaft 41, the first cam 411,
The second camshaft 42, the second cam 421,
Integrated push rod 5, push rod body 51, ram seat 52, push rod roller 53, spring 54
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,
Support 8, limited block 81,
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, wherein identical from start to finishOr similarly label represents same or similar element or has the element of identical or similar functions. Below by retouching with reference to accompanying drawingThe embodiment stating is exemplary, is 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, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ",Orientation or position relationship that " outward ", " clockwise ", " counterclockwise " etc. indicate are based on orientation shown in the drawings or position relationship,Be only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specificOrientation, 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 instruction or hint relative importanceOr the implicit quantity that indicates indicated technical characterictic. Thus, the feature that is limited with " first ", " second " can be expressedOr impliedly comprise one or more these features. In description of the invention, the implication of " multiple " is two or twoAbove, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing "Should be interpreted broadly Deng term, for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can beMechanical connection can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be twoThe interaction relationship of the connection of individual element internal or two elements. For the ordinary skill in the art, Ke YigenUnderstand above-mentioned term concrete meaning in the present invention according to concrete condition.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D scoreCan comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but logicalCross the other feature contact between them. And, First Characteristic Second Characteristic " on ", " top " and " onFace " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher thanTwo features. First Characteristic Second Characteristic " under ", " below " and " below " comprise that First Characteristic is the second spyUnder levying and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
The body group of engine is the support of engine, is the matrix of toggle, valve actuating mechanism and the assembling of each system.In this area, usually, body group is mainly made up of cylinder block, cylinder head, cylinder head gasket and oil sump etc., oilDrain pan is generally located at the bottom of cylinder block, and cylinder head is located at the top of cylinder block, the end face that cylinder head gasket is located at cylinder block withBetween the bottom surface of cylinder head, for sealing the gap between the two.
Cylinder head forms combustion chamber together with cylinder with top land, the top of combustion chamber has air inlet and exhaust outlet, valveThe valve of mechanism is located in cylinder cap and sealing air inlet and exhaust outlet. For existing general engine, adopt two moreEnter the valve form of scene 2, minority also has the valve form that adopts one-in-and-one-out or three to enter scene 2.
For same engine, generally all there is multiple different operating mode, for example low speed small load condition, high speed load greatlyOperating modes etc., when engine is under different operating modes, engine externally moment of torsion and the power of output is different, simultaneously engineThe content of the pernicious gas of discharge is also different, and the valve actuating mechanism of engine is according to the working cycles of carrying out in each cylinder and ignitingThe requirement of order, timing opens and closes inlet valve and exhaust valve.
Usually, valve actuating mechanism can regulate the lift amount of valve, but regulative mode is single, can not meet well useRequirement. Can realize the secondary opening of valve according to the valve actuating mechanism of the embodiment of the present invention, simultaneously also can proper extension valveOpening time, regulative mode is various, thereby meets better the requirement of different operating modes.
Be appreciated that according to the valve actuating mechanism of the embodiment of the present invention and can, for driving into the valve event of gas side, certainly also canFor driving the valve event of exhaust side, or be used in air inlet side and exhaust side to drive corresponding valve event simultaneously. PreferablyGround,, in the following description, joins with this for driving the valve event of exhaust side according to the valve actuating mechanism of the embodiment of the present inventionMechanism of qi structure is example for driving the valve of exhaust side.
Describe in detail according to the valve actuating mechanism 100 for engine of the embodiment of the present invention below with reference to Fig. 1-Fig. 4.
Can comprise valve mechanism 1, rocker arm assembly 2, roller 31, integrated pushing away according to the valve actuating mechanism 100 of the embodiment of the present inventionBar 5, the first camshaft 41 and the second camshaft 42 and phase-regulating mechanism (scheming not shown).
Wherein, valve mechanism 1 has been prior art, and is known by those skilled in the art, and for example valve mechanism 1 canTo comprise valve 11, valve 11 can move back and forth up and down to open or close along the center line of valve 11 in valve guide bushingThe air inlet of combustion chamber or exhaust outlet, the part that can adopt with prior art identical setting for these, retouches here no longer in detailState.
As shown in Figures 2 and 3, the substructure of rocker arm assembly 2 has the profile 231 of driving, drives profile 231 to be suitable for driving gasDoor 11 moves along the direction that is parallel to valve 11 center lines, and driving profile 231 can be boot last face, but is not limited to this. ShouldWork as understanding, those skilled in the art can be according to actual needs and flexible design drives the concrete line style of profile 231, is not limited toAbove-mentioned boot last face.
Roller 31 is located on rocker arm assembly 2 pivotly, that is to say, roller 31 be located on rocker arm assembly 2 and with respect toRocker arm assembly 2 can pivotable.
As depicted in figs. 1 and 2, the first camshaft 41 and the second camshaft 42 be arranged in parallel, the first camshaft 41 and secondThe common rocker arm assembly 2 that drives of camshaft 42. The first camshaft 41 has the first cam 411, the second camshafts 42 and hasTwo cam 421, the first cams 411 and the second cam 421 can be fitted in respectively on corresponding axle. According to more of the present inventionEmbodiment, each in the first cam 411 and the second cam 421 all has large basic circle (the A section in Fig. 2), little basic circle(the B section in Fig. 2) and be connected to the changeover portion (the C section in Fig. 2) 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.
Integrated push rod 5 is connected pivotly with rocker arm assembly 2, that is to say, integrated push rod 5 be located on rocker arm assembly 2 andCan pivotable with respect to rocker arm assembly 2. As depicted in figs. 1 and 2, the first cam 411 is against roller 31, the second cams 421Outer peripheral face and integrated push rod 5 against coordinating to drive integrated push rod 5 to move along the length direction that is parallel to integrated push rod 5.Adopt the fit structure of integrated push rod 5 and the second cam 421 can limit the movement locus of rocker arm assembly 2, energy is fine simultaneouslyGround keeps the stability of rocker arm assembly 2, and simple in structure.
As depicted in figs. 1 and 2, the first cam 411 is against the outer peripheral face of roller 31 and the second cam 421 against integrated push rod5, thus in the time that the first camshaft 41 and the second camshaft 42 rotate, the large basic circle of the first cam 411, little basic circle and mistakeThe section of crossing can contact with roller 31 respectively, and similarly, the large basic circle of the second camshaft 42, little basic circle and changeover portion can be distinguishedContact with integrated push rod 5, in the time that the diverse location of respective cams contacts with corresponding roller or integrated push rod 5, rocker arm assembly 2The lift amount of action rear drive valve 11 can change.
For example,, at large basic circle and corresponding roller or the integrated push rod of two kinds of cams (i.e. the first cam 411 and the second cam 421)When 5 contact, the lift amount of valve 11 can be maximum. In two kinds of cams, there is the little basic circle and phase of at least one camWhile answering roller 31 or integrated push rod 5 to contact, valve 11 can be in closed condition, i.e. the lift amount minimum of valve 11. AndThe changeover portion of two kinds of cams and corresponding roller 31 or integrated push rod 5 contacts or one for changeover portion, another is large basic circleWhile contact with corresponding roller 31 or integrated push rod 5, valve 11 lift amount can be between zero lift and maximum lift.But, should be appreciated that the present invention is not limited to this, for a person skilled in the art, reading description hereinOn the basis of disclosure, molded line that obviously can the above-mentioned two kinds of cams of flexible design, two kinds of cam profiles and corresponding rollingWhen son 31 or the position that contacts of integrated push rod 5 change, the lift amount of valve 11 also can adaptations, this forThose skilled in the art should be that appearance is intelligible.
Phase-regulating mechanism is for regulating the relative phase of the first camshaft 41 and the second camshaft 42, thereby change first is protrudingThe relative phase of wheel 411 and the second cam 421. According to one embodiment of present invention, phase-regulating mechanism can be phase placeDevice, phaser can be single rotor phaser, only has a rotor, rotor can with the first camshaft 41 and the second camOne of axle 42 is connected, and to regulate this camshaft phase place of another camshaft relatively, should be appreciated that phaser regulates two camsThe relative phase of axle has been prior art, here specific works principle and the tune of the concrete structure to phaser, phaserJoint process is not made specified otherwise.
Be appreciated that owing to driving homonymy valve 11 to adopt two camshafts (according to the valve actuating mechanism 100 of the embodiment of the present inventionThe first camshaft 41 and the second camshaft 42), therefore regulate by phaser according to the valve actuating mechanism 100 of the embodiment of the present inventionAfter the relative phase of these two camshafts, can realize the secondary opening of valve 11 and extend 11 opening times of valve.
Particularly, the first camshaft 41 and the second camshaft 42 can pass through bent axle and the intermediate transmission parts of engineDrive, this first camshaft 41 and the second camshaft 42 can be realized oppositely (signal explanation can certainly be in the same way)Synchronous rotary (being prior art), for example, can realize by the identical meshed transmission gear of the number of teeth, but be not limited to this.In the process that the first camshaft 41 and the second camshaft 42 counter-rotate, there will be the large basic circle of two kinds of above-mentioned cams equalWith corresponding roller 31 or integrated 5 contacts, now the lift amount of valve 11 can be maximum, also there will be a kind of cam simultaneouslyLarge basic circle and corresponding roller 31 or the changeover portion of integrated 5 contacts and another kind of cam contact with corresponding roller 31 or integrated 5Situation, now the relative maximum lift of valve 11 lift amount reduces to some extent, valve 11 has breakdown action twice like this, itsIn be once opened into maximum lift, the relative maximum lift of lift of another this unlatching reduces, and has realized valve 11 secondary openingsObject.
Further, when the interval of valve 11 secondary openings is larger, as valve 11 secondary openings of exhaust side approach air inlet sideWhen the valve-closing moment, can realize scavenging function. If the 11 secondary opening times of valve hour, as the valve of exhaust sideWhen 11 secondary openings approach the valve opening moment of air inlet side, can realize the EGR of larger inside. The concrete valve 11 2 of controllingIn the time interval of inferior unlatching, can realize by adaptability design cam profile, but be not limited to this.
Regulate at phaser after the relative phase of two camshafts, the relative phase of the first cam 411 and the second cam 421 is sent outRaw change, now can realize and increase valve 11 open-interval objects, for example, at the relative phase that has regulated two camshaftsAfter, two situations that cams there will be lasting large basic circle to contact with corresponding roller, now can greatly extend valve 11 unlatchings and holdThe continuous time.
Thus, can realize valve 11 secondary openings and gas according to the valve actuating mechanism 100 for engine of the embodiment of the present inventionDoor 11 is opened the object that the duration increases, and in the time realizing valve 11 secondary opening, can realize scavenging function or improve innerEGR, simultaneously simpler, compact according to valve actuating mechanism 100 its rocker arm assemblies 2 and the integrated push rod 5 of the embodiment of the present invention,Parts are few, and cost is low.
Describe the valve actuating mechanism 100 in diagram in detail below with reference to Fig. 1-Fig. 4.
In these some embodiment, rocker arm assembly 2 comprises two rocking arm portions 22 and middle arm portions 24, these two rocking arm portions22 be located at respectively in the middle of the two ends of arm portions 24, two rocking arm portions 22 are oppositely arranged and along the first camshaft 41 and secondAxially being spaced apart from each other of camshaft 42, preferably, two rocking arm portions 22 can be integrally formed with middle arm portions 24, byThis can reduce processing step, and intensity is high, and cost is low.
Further, as shown in Figure 3, rocker arm assembly 2 also comprises drive division 23, and drive division 23 is located at each rocking arm portion 22Bottom, drive division 23 can be configured to plates and bottom surface is that cambered surface drives profile 231 to form. The cambered surface equally, hereCan be divided into the subarc face that multistage is connected in turn, this driving profile 231 can be configured to boot last, but is not limited to this.
Further, the two ends of middle arm portions 24 are respectively arranged with roller 31 and middle arm portions 24 and roll with these twoSon 31 is connected by the first bearing pin 71.
As shown in Figure 4, integrated push rod 5 comprises push rod body 51, ram seat 52 and push rod roller 53, and ram seat 52 canBe located at one end of push rod body 51, ram seat 52 is " U " shape, and push rod roller 53 is located at two of ram seat 52 pivotlyBetween sidewall, the outer peripheral face of the second cam 421 is against push rod roller 53. Thus, the structure of integrated push rod 5 is simpler.Further, also comprise support 8 for the valve actuating mechanism 100 of engine. Support 8 can be for supporting the first camAxle 41 and the second camshaft 42. On support 8, be provided with limited block 81, on limited block 81, be integrated with spring mounting seat, andOn push rod body 51, be arranged with spring 54, one end of spring 54 is against ram seat 52, and the other end of spring 54 is engaged inIn spring mounting seat, push rod body 51 runs through limited block 81. In some embodiments of the invention, spring mounting seat canFor being integrated in the groove on limited block 81. By spring 54 is set, make push rod roller 53 always normal pressure at the second cam 421Upper, and spring mounting seat on limited block 81 can carry out integrated push rod 5 spacing, to ensure the motion rail of integrated push rod 5Mark, has ensured the kinetic stability of rocker arm assembly 2.
In certain embodiments, the outside of two rocking arm portions 22 is respectively arranged with a support portion 8, the inner side of support portion 8Being provided with 81, two rocking arm portions 22 of limited block and being positioned at the integrated push rod 5 of these two rocking arm portion 22 both sides can be by secondBearing pin 72 is connected, and push rod roller 53 can be connected by the 3rd bearing pin 73 with the two side of ram seat 52, push rod roller 53Can be resisted against on the second cam 421, ram seat 52 can run through limited block 81.
In the example of Fig. 1 and Fig. 2, each valve mechanism 1 includes two valves 11, accordingly, rocking arm portion 22,Support part 8 and integrated push rod 5 are two, and the corresponding rocking arm portion of valve 11 22, an integrated push rod 5 andIndividual support portion 8. Not only can support better thus the first camshaft 41 and the second camshaft 42, can also keep betterStability when rocker arm assembly 2 moves.
As shown in Figure 2, in these some embodiment, it is tabular that support portion 8 is configured to rectangle, and support portion 8 be provided withThe first clamp port of the first camshaft 41 correspondences and second clamp port corresponding with the second camshaft 42, simple in structure thus,Easy to process, cost is low, takes up room little, convenient layout.
Wherein, support portion 8 is located in the body group of engine. Here, need explanation a bit, in this area, bodyGroup mainly comprises the parts such as cylinder block, cylinder head, cylinder head gasket and oil sump, but in the present invention, body group shouldBe used as broad understanding, can be understood as this body group and not only comprise the included parts of above-mentioned traditional sense upper machine body group, alsoCan comprise some attached installing components etc. For example, in superincumbent description, " support portion 8 is located in the body group of engine ",Can be understood as support portion 8 and be directly arranged in body group as in cylinder head, or can be fixedly installed intermediate member in cylinder head,Support portion 8 is located on this intermediate member, and to can be understood as be a part for body group for the intermediate member here.
In these some embodiment, as depicted in figs. 1 and 2, valve actuating mechanism 100 also comprises valve rocker 61 and hydraulic tappet62, 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. ByThis, in the time that rocker arm assembly 2 moves, the driving profile 231 of its bottom can promote valve rocker roller 611 and drive valve rocker61 actions, valve rocker 61 and then drive valve 11 move to open valve 11.
Hydraulic tappet 62 can be used for regulating valve 11 gaps, and the concrete structure of hydraulic tappet 62 and operation principle have been existing skillArt, and be widely used in this area, be for example applied in VVL technology, therefore do not do in detail for hydraulic tappet 62 hereThin description.
Be appreciated that in the above-described embodiment, in order to ensure that the first cam 411 can keep in touch shape constantly with roller 31State, prevents slip phenomenon, and valve actuating mechanism 100 also has elastic reset structure, and elastic reset structure can flexibly push awaySupport roller 31 and push rod roller 53 so that roller 31 is often resisted against on the outer peripheral face of the first cam 411 and push rod roller 53 is normalBe resisted against on the outer peripheral face of the second cam 421, for a person skilled in the art, can be according to above-mentioned rocker arm assembly 2Architectural characteristic and design the elastic reset structure of different structure, size, form, can be integrative-structure, can be splitStructure, as long as can ensure that respective cams contacted with the corresponding roller moment, this for a person skilled in the art,Should be that appearance is intelligible, therefore not make particular determination here.
Simply describe according to the vehicle of the embodiment of the present invention below.
Comprise according to the valve actuating mechanism for engine of describing in the above embodiment of the present invention according to the vehicle of the embodiment of the present invention100. 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 engine, speed changer, differential mechanism,Brakes etc. have been all prior art and have been well known for ordinary skill in the art, therefore no longer retouched in detail one by one hereState.
In the description of this description, reference term " embodiment ", " some embodiment ", " example ", " specifically showExample " or the description of " some examples " etc. the specific features that means to describe in conjunction with this embodiment or example, structure, material orFeature is contained at least one embodiment of the present invention or example. In this manual, the schematic statement to above-mentioned termNot must for be identical embodiment or example. And specific features, structure, material or the feature of description canIn any one or more embodiment or example with suitable mode combination. In addition, those skilled in the art can be byDifferent embodiment or the example in this description, described engage 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, those of ordinary skill in the art within the scope of the invention can be to above-described embodimentChange, amendment, replacement and modification.
Claims (10)
1. for a valve actuating mechanism for engine, 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 described valve machineThe valve of structure moves along the direction that is parallel to valve center line;
Roller, described roller is located on described rocker arm assembly pivotly;
Integrated push rod, described integrated push rod is connected pivotly with described rocker arm assembly;
The first camshaft and the second camshaft, described the first camshaft has the first cam and described the second camshaft has secondCam, described the first cam is against described roller, and the outer peripheral face of described the second cam and described integrated push rod drive against coordinatingMoving described integrated push rod moves along the length direction that is parallel to integrated push rod; And
For regulating the phase-regulating mechanism of described the first camshaft and described the second camshaft relative phase.
2. the valve actuating mechanism for engine according to claim 1, is characterized in that, described rocker arm assembly comprises:
Two rocking arm portions and middle arm portions, described two rocking arm portions are located at respectively the bottom of described middle arm portions, instituteStating two rocking arm portions is oppositely arranged and being axially spaced apart from each other along the first and second camshafts.
3. the valve actuating mechanism for engine according to claim 2, is characterized in that, described rocker arm assembly also comprises:Drive division, described drive division is located at the bottom of each described rocking arm portion, and described drive division is configured to plates and bottom surface is cambered surfaceTo form described driving profile.
4. the valve actuating mechanism for engine according to claim 3, is characterized in that, described middle arm portionsTwo ends are respectively arranged with described roller and described middle arm portions is connected by the first bearing pin with these two rollers.
5. the valve actuating mechanism for engine according to claim 4, is characterized in that, described two rocking arm portions andThe integrated push rod that is positioned at these two rocking arm portion both sides is connected by the second bearing pin.
6. the valve actuating mechanism for engine according to claim 2, is characterized in that, described integrated push rod comprises:
Push rod body, ram seat and push rod roller, described ram seat is located at one end of described push rod body, and described ram seat is" U " shape, described push rod roller is located between the two side of described ram seat pivotly, and the outer peripheral face of described the second cam supportsBy described push rod roller.
7. the valve actuating mechanism for engine according to claim 6, is characterized in that, also comprises: support, instituteState support for supporting described the first camshaft and described the second camshaft;
On described support, be provided with limited block, on described limited block, be integrated with spring mounting seat, and overlap on described push rod bodyBe provided with spring, one end of described spring is engaged in described spring mounting seat against described ram seat and the other end, described push rodBody runs through described limited block.
8. the valve actuating mechanism for engine according to claim 6, is characterized in that, described push rod roller with described inThe two side of ram seat is connected by the 3rd bearing pin.
9. the valve actuating mechanism for engine according to claim 1, is characterized in that, described phase-regulating mechanism isPhaser.
10. a vehicle, is characterized in that, comprises according to the joining for engine described in any one in claim 1-9Mechanism of qi structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310745941.3A CN103758601B (en) | 2013-12-30 | 2013-12-30 | For the valve actuating mechanism of engine and there is its vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310745941.3A CN103758601B (en) | 2013-12-30 | 2013-12-30 | For the valve actuating mechanism of engine and there is its vehicle |
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| CN103758601A CN103758601A (en) | 2014-04-30 |
| CN103758601B true CN103758601B (en) | 2016-05-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107035448A (en) * | 2015-07-31 | 2017-08-11 | 长城汽车股份有限公司 | For the valve actuating mechanism of engine and the vehicle with it |
| CN106703921A (en) * | 2015-07-31 | 2017-05-24 | 长城汽车股份有限公司 | Air distribution mechanism for engine, and cam thereof |
| CN106401688A (en) * | 2015-07-31 | 2017-02-15 | 长城汽车股份有限公司 | Valve timing mechanism for engine and cam of valve timing mechanism |
| CN106382137A (en) * | 2015-07-31 | 2017-02-08 | 长城汽车股份有限公司 | Valve actuating mechanism for engine and cam of valve actuating mechanism |
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