CN103216291B - For motor valve lift apparatus and there is its motor, vehicle - Google Patents
For motor valve lift apparatus and there is its motor, vehicle Download PDFInfo
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- CN103216291B CN103216291B CN201310159362.0A CN201310159362A CN103216291B CN 103216291 B CN103216291 B CN 103216291B CN 201310159362 A CN201310159362 A CN 201310159362A CN 103216291 B CN103216291 B CN 103216291B
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Abstract
The invention discloses a kind of valve lift apparatus for motor and have its motor, vehicle, described valve lift apparatus comprises: valve mechanism, and the top of valve mechanism is provided with roller rocker arms; Camshaft mechanism, camshaft mechanism is located at the top of valve mechanism, and camshaft mechanism has cam; Oscillating arm mechanisms, oscillating arm mechanisms to be located between described roller rocker arms and camshaft mechanism and to be swung by the swing arm spin axis of actuated by cams oscillating arm mechanisms around oscillating arm mechanisms; Actuating mechanism, actuating mechanism regulates the lift of valve mechanism with continuous variable, wherein swing arm spin axis and adjustment rotation axis coincident for driving oscillating arm mechanisms to rotate around the adjustment spin axis of actuating mechanism.According to valve lift apparatus of the present invention, various different valve lift can be realized according to the requirement of the different operating modes of motor, reduce the pumping loss under low speed load condition and mechanical loss, also achieve the continuous variable of valve lift simultaneously, improve the working efficiency of motor.
Description
Technical field
The present invention relates to automotive field, especially relate to a kind of valve lift apparatus for motor and there is its motor, vehicle.
Background technique
Valve lift and the valve cornerite of traditional engine valve actuating mechanism are changeless, and the size of lift depends on the operating point of design, are determined by cam face, roller rocker arms structure.The operating conditions of motor requires it is different to valve lift and cornerite, and high speed high load working condition needs valve lift large, and valve cornerite is large, and low speed small load condition needs valve lift little, and cornerite is also little simultaneously.The size of general engine air valve lift designs according to the requirement under high rotating speed high load working condition, mainly ensures the Power output under the large load of high speed, so valve exists excessive unlatching phenomenon under slow-speed of revolution small load condition; Under slow-speed of revolution small load condition, on the one hand by reducing the aperture adjustment air inflow of closure, excessive valve lift causes the increase of mechanical loss work on the other hand, thus in pumping loss and mechanical loss two, reduce the working efficiency of motor.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, to be to propose a kind of structure simple, reliable and stable and regulate the valve lift apparatus for motor of valve mechanism lift with can realizing continuous variable for one object of the present invention.
Another object of the present invention is to propose a kind of motor with above-mentioned valve lift apparatus.
Another object of the present invention is to propose a kind of vehicle with above-mentioned motor.
The valve lift apparatus for motor of embodiment, comprising: valve mechanism according to a first aspect of the present invention, and the top of described valve mechanism is provided with roller rocker arms; Camshaft mechanism, described camshaft mechanism is located at the top of described valve mechanism, and described camshaft mechanism has cam; Oscillating arm mechanisms, described oscillating arm mechanisms to be located between described roller rocker arms and described camshaft mechanism and to be swung by the swing arm spin axis of oscillating arm mechanisms described in described actuated by cams around described oscillating arm mechanisms; And actuating mechanism, described actuating mechanism regulates lift, wherein said swing arm spin axis and the described adjustment rotation axis coincident of described valve mechanism for driving described oscillating arm mechanisms to rotate around the adjustment spin axis of described actuating mechanism with continuous variable.
According to the valve lift apparatus for motor of the embodiment of the present invention, various different valve lift can be realized according to the requirement of the different operating modes of motor, thus solve motor well at high speed load condition and low speed load condition to the requirement of distribution, reduce the pumping loss under low speed load condition and mechanical loss, also achieve the continuous variable of valve lift simultaneously, and then improve the working efficiency of motor.
In addition, also following additional technical feature can be had according to the valve lift apparatus for motor of the present invention:
According to one embodiment of present invention, described oscillating arm mechanisms comprises: the first swing arm, described first swing arm and described cam engagement and swung around described swing arm spin axis by the first swing arm described in described actuated by cams; Slide block, described slide block coordinates so that slide block swings around described swing arm spin axis described in described first swing arm driving with described first swing arm; And second swing arm, described second swing arm coordinates so that the second swing arm described in described slider-actuated swings around described swing arm spin axis with described slide block, described second swing arm forms such profile, described profile coordinate with described roller rocker arms and described profile be configured to be suitable for obtain needed for valve lift; Wherein said actuating mechanism is suitable for driving described slide block with the cooperation position of the described profile and described roller rocker arms that change described second swing arm.Thus, connected between the first swing arm and the second swing arm by slide block, slide block both can transmission of drive force, can regulate relative position between the first swing arm and the second swing arm again, thus change the lift of valve mechanism by actuating mechanism.In addition, slide block can also support the first swing arm, makes the axis of the first swing arm and the dead in line of the second swing arm.
Particularly, described first swing arm comprises: the oscillating arm bracket of ring, and described oscillating arm bracket is provided with fixed plate; And swing arm roller, described swing arm roller is located on described fixed plate rotationally, and wherein said swing arm roller often contacts with described cam.
Further, described valve lift apparatus also comprises: resetting-mechanism, and described first swing arm of described resetting-mechanism pushing and pressing often contacts with described cam to make the swing arm roller of described first swing arm.Thus, by arranging resetting-mechanism, the swing arm roller that resetting-mechanism can make the first swing arm all the time with cam contact, avoid swing arm roller to produce the phenomenon flown off.
Particularly, described resetting-mechanism comprises: very guide, and described very guide is suitable for being fixed on the cylinder cap of described motor; Elastic component, described elastic component is located in described very guide; And very sell, the upper end of described very pin pushes against described first swing arm and described lower end of very selling pushes described elastic component.Thus, by arranging very pin and very guide, the movement locus of elastic component can effectively be ensured.In addition, this resetting-mechanism compact overall structure, volume is little.
Alternatively, in described oscillating arm bracket, be provided with the first projection, described slide block be provided with the second projection, wherein said first projection is configured with the first inclined-plane, described second projection is configured with the second inclined-plane being suitable for coordinating with described first inclined-plane.Thus, by arranging the first projection and the second projection, driving force is passed to slide block by the contact friction force between the first inclined-plane and the second inclined-plane by the first swing arm, and then drive the second swing arm to rotate around swing arm spin axis, thus the change profile of the second swing arm and the cooperation position of roller rocker arms are to change the lift of valve mechanism.
Particularly, described actuating mechanism comprises: driver; Leading screw, one end of described leading screw is connected with described driver, and described slide block is configured to the screw being suitable for coordinating with described leading screw.Thus, leading screw can by driver Direct driver, and component are few, and the drive efficiency of driver is high.
Preferably, described slide block is two, described two slide blocks are symmetrical arranged about described first swing arm and are driven by described actuating mechanism these two slide blocks be synchronized with the movement in opposite directions or be synchronized with the movement dorsad, and described second swing arm is two, and described two the second swing arms are symmetrical arranged about described first swing arm.
The motor of embodiment according to a second aspect of the present invention, comprises the valve lift apparatus for motor according to the above-mentioned first aspect of the present invention.
The vehicle of embodiment according to a third aspect of the present invention, comprises the motor according to the above-mentioned second aspect of the present invention.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is according to an embodiment of the invention for the explosive view of the valve lift apparatus of motor;
Fig. 2 is the A portion enlarged view that Fig. 1 centre circle shows;
Fig. 3 is according to an embodiment of the invention for the side view of the valve lift apparatus of motor.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Engine body group is the support of motor, is the matrix of connecting rod, distribution device and each system assembling.Body group is primarily of compositions such as cylinder block, cylinder cap, cylinder head gasket and oil sumps, oil sump is generally located at the bottom of cylinder block, cylinder cap is located at the top of cylinder block, and cylinder head gasket is located between the end face of cylinder block and the bottom surface of cylinder cap, for sealing gap therebetween.
Cylinder cap forms firing chamber with piston head together with cylinder, and the top of firing chamber has suction port and relief opening, and valve mechanism 1 to be located in cylinder cap and to close suction port and relief opening.For existing general motor, the valve mechanism 1 of scene 2 is entered in many employings two, and minority also has the valve mechanism 1 adopting 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., under motor is in low speed small load condition, the power of motor and the output of moment of torsion relatively low, the air therefore entered in firing chamber can be relatively less, and under motor is in high speed high load working condition, the power of motor is relative with the output of moment of torsion higher, therefore need more air enter in firing chamber with more oil inflame.
Valve lift apparatus 100 for motor of the present invention can realize the continuous variable of valve lift particularly intake valve lift, thus the different operating modes residing for motor can carry out Intelligent adjustment valve lift, ensure the air in firing chamber and fuel oil Thorough combustion, improve power performance and the fuel economy of motor.
The valve lift apparatus 100 for motor of embodiment is according to a first aspect of the present invention described below with reference to Fig. 1-Fig. 3.
As shown in Figure 1, the valve lift apparatus 100 for motor of embodiment comprises valve mechanism 1, camshaft mechanism 2, oscillating arm mechanisms 3 and actuating mechanism 4 according to a first aspect of the present invention.
The top of valve mechanism 1 is provided with roller rocker arms 11.In the example of fig. 1, the engine valve stem 12 that valve mechanism 1 comprises roller rocker arms 11 and is positioned at below roller rocker arms 11, roller rocker arms 11 swings and the engine valve stem 12 of below can be driven to make up and down reciprocatingly straight line motion around the center line of himself, thus opens or closes suction port or the relief opening of firing chamber.
Camshaft mechanism 2 is located at the top of valve mechanism 1, and camshaft mechanism 2 has cam 21.As shown in Figure 1, the cam 21 that camshaft mechanism 2 comprises camshaft 22 and is set in outside camshaft 22, further, the below of camshaft 22 is provided with camshaft bearing lid 6 with supporting cam wheel axle 22, alternatively, camshaft bearing lid 6 is two and two camshaft bearing lids 6 lay respectively at the both sides of cam 21.Camshaft mechanism 2 can by the crank-driven of motor, and camshaft mechanism 2 and bent axle can adopt gear transmission, Chain conveyer or V belt translation.
As shown in figures 1 and 3, oscillating arm mechanisms 3 to be located between roller rocker arms 11 and camshaft mechanism 2 and to drive oscillating arm mechanisms 3 to swing (i.e. the central axis of the first swing arm 31, second swing arm 33 and slide block 32) around the swing arm spin axis of oscillating arm mechanisms 3 by cam 21.
As shown in Figure 1, actuating mechanism 4 regulates the lift of valve mechanism 1 with continuous variable, wherein swing arm spin axis and adjustment rotation axis coincident for driving oscillating arm mechanisms 3 to rotate around the adjustment spin axis (i.e. the central axis of driver 41 and leading screw 42) of actuating mechanism 4.
Here, it should be noted that, in describing the invention, as there is no specified otherwise, being described for intake valve for valve mechanism 1.Certainly, be understandable that, this valve mechanism 1 also can be exhaust valve, and namely this valve lift apparatus 100 also can be used for the lift regulating exhaust valve.
According to the valve lift apparatus 100 for motor of the embodiment of the present invention, various different valve lift can be realized according to the requirement of the different operating modes of motor, thus solve motor well at high speed load condition and low speed load condition to the requirement of distribution, reduce the pumping loss under low speed load condition and mechanical loss, also achieve the continuous variable of valve lift simultaneously, and then improve the working efficiency of motor.And due to swing arm spin axis and adjustment rotation axis coincident, thus make the compact structure of valve lift apparatus 100, convenient installation.
In one embodiment of the invention, as shown in figures 1 and 3, oscillating arm mechanisms 3 comprises the first swing arm 31, slide block 32 and the second swing arm 33.Wherein, the first swing arm 31 coordinates with cam 21 and drives the first swing arm 31 to swing around swing arm spin axis (central axis of the first swing arm 31) by cam 21.Particularly, with reference to Fig. 1, the first swing arm 31 has the swing arm roller 312 coordinated with cam 21, swing arm roller 312 and cam 21 remain linear contact lay, like this, greatly can reduce friction during both motions, improve working life, reduce user cost and operating noise.When the cam 21 of crank-driven camshaft 22 rotates, remain that swing arm roller 312 1 aspect contacted rotates around the axis of himself with cam 21, drive the first swing arm 31 to move around its central shaft string pendulum on the one hand.
Slide block 32 coordinates with the first swing arm 31 so that the first swing arm 31 drives slide block 32 to swing around swing arm spin axis (central axis of the first swing arm 31).Such as in the example of Fig. 1 and Fig. 3, slide block 32 be set in the first swing arm 31 at least partly, when the first swing arm 31 is moved around its central shaft string pendulum, the first swing arm 31 is with movable slider 32 to move around its central shaft string pendulum, now the central axis of the first swing arm 31 and the central axes of slide block 32.
Second swing arm 33 coordinates with slide block 32 so that slide block 32 drives the second swing arm 33 to swing around swing arm spin axis.Such as in the example of fig. 1, second swing arm 33 is set in the outside of slide block 32, and the second swing arm 33 and slide block 32 can be free to slide in the axial direction, but can not relatively rotate, thus when the first swing arm 31 drives slide block 32 to swing around the central axis of the first swing arm 31, can corresponding drive second swing arm 33 rotate.Alternatively, the second swing arm 33 is connected by spline with slide block 32.
As shown in Figure 1, the second swing arm 33 forms such profile 331, and profile 331 coordinates with roller rocker arms 11, and such as profile 331 contacts with the rocking arm roller 111 at roller rocker arms 11 top and coordinates.
Profile 331 is configured to be suitable for the valve lift needed for acquisition.Such as, profile 331 can precompute the linear of profile 331 according to the different operating modes of motor, like this when motor is with a certain operating mode running, profile 331 has be suitable for this operating mode under be most suitable for the line style part of driven roller rocking arm 11, thus the lift amount of valve mechanism 1 is suitable for, ensure to enter abundance and suitable air quantity in firing chamber, so that fuel oil Thorough combustion, improve Power output and the fuel economy of motor.
According to oscillating arm mechanisms 3 of the present invention, the profile 331 of the second swing arm 33 can be configured to be suitable for the valve lift needed for acquisition according to designing requirement, such as profile 331 is configured with zero lift profile, little lift profile and high-lift profile, the part that profile 331 can be regulated to coordinate with valve mechanism 1 according to Under Different Work Condition of Engine like this, thus change valve lift, obtain desirable lift amount, and then improve power performance and the fuel economy of motor.
Wherein actuating mechanism 4 is suitable for driving slide block 32 with the cooperation position of the profile 331 with roller rocker arms 11 that change the second swing arm 33.Thus, connected between the first swing arm 31 and the second swing arm 33 by slide block 32, slide block 32 both can transmission of drive force, can regulate relative position between the first swing arm 31 and the second swing arm 33 again, thus change the lift of valve mechanism 1 by actuating mechanism 4.In addition, slide block 32 can also support the first swing arm 31, makes the axis of the first swing arm 31 and the dead in line of the second swing arm 33.
Particularly, the first swing arm 31 comprises oscillating arm bracket 311 and the swing arm roller 312 of ring.Oscillating arm bracket 311 is provided with fixed plate 3111.Swing arm roller 312 is located on fixed plate 3111 rotationally, and wherein swing arm roller 312 often contacts with cam 21.Such as in the example of Fig. 1 and Fig. 3, the part of contiguous camshaft 22 mechanism 2 of oscillating arm bracket 311 is configured to comprise two pieces of parallel and fixed plates 3111 be oppositely arranged, and swing arm roller 312 is folded between these two fixed plates 3111 rotationally, thus on the direction being parallel to swing arm spin axis, limits oscillating arm mechanisms 3 move relative to camshaft mechanism 2.
Further, valve lift apparatus 100 also comprises: resetting-mechanism 5, and resetting-mechanism 5 pushes against the first swing arm 31 and often contacts with cam 21 to make the swing arm roller 312 of the first swing arm 31.With reference to figure 1, resetting-mechanism 5 is arranged on the oblique below of the first swing arm 31 and between two valve mechanisms 1, such resetting-mechanism 5 can make the swing arm roller 312 of the first swing arm 31 contact with cam 21 all the time, avoids swing arm roller 312 to produce the phenomenon flown off.
Particularly, resetting-mechanism 5 comprises very guide 51, elastic component 52 and very pin 53.Very guide 51 is suitable for being fixed on the cylinder cap of motor.Elastic component 52 is located to be endured in guide 51.Very the upper end of pin 53 pushes against the first swing arm 31 and endures the lower end pushing elastic part 52 of pin 53.In the example of fig. 1, very the top of guide 51 is opened wide, and elastic component 52 is located to be endured in guide 51, and very the first swing arm 31 is only supported in the upper end of pin 53, very the stretching at least partly of lower end of pin 53 is endured in guide 51 and downward pushing elastic part 52, and elastic component 52 is in normal compressive state to provide restoring force.Alternatively, elastic component 52 is spring.By arranging very pin 53 and very guide 51, the movement locus of elastic component 52 effectively can be ensured, and this resetting-mechanism 5 compact overall structure, volume is little.
Alternatively, in oscillating arm bracket 311, be provided with the first projection 313, slide block 32 be provided with the second projection 321, wherein the first projection 313 is configured with the first inclined-plane, the second projection 321 is configured with the second inclined-plane being suitable for coordinating with the first inclined-plane.Further, the inner peripheral surface of oscillating arm bracket 311 can be provided with multiple first projection 313 and be uniformly distributed in the circumference of oscillating arm bracket 311, multiple second projections 321 and multiple first projection 313 one_to_one corresponding.
In the example of fig. 1, first projection 313 is roughly in Hexagon, first projection 313 extends from the inner peripheral surface of oscillating arm bracket 311 towards the center of oscillating arm bracket 311, one end of the contiguous slide block 32 of the first projection 313 is formed as two first inclined-planes with predetermined angle, second projection 321 extends from one end of vicinity first swing arm 31 of slide block 32 along the direction towards the first swing arm 31, the respective surfaces of the second projection 321 is formed as the second inclined-plane coordinated with the first inclined-plane, driving force is passed to slide block 32 by the contact friction force between the first inclined-plane and the second inclined-plane by such first swing arm 31, and then drive the second swing arm 33 to rotate around swing arm spin axis, thus the cooperation position of the profile 331 and roller rocker arms 11 that change the second swing arm 33 is to change the lift of valve mechanism 1.It is to be appreciated that the shape of the first projection 313 and the second projection 321, quantity and setting position can be arranged according to actual requirement, to meet actual requirement better.
In one embodiment of the invention, actuating mechanism 4 comprises driver 41 and leading screw 42, and one end of leading screw 42 is connected with driver 41, and slide block 32 is configured to the screw being suitable for coordinating with leading screw 42.As depicted in figs. 1 and 2, driver 41 is motor, motor is connected by the left end of spline with leading screw 42, thus leading screw 42 can by driver 41 Direct driver, component are few, and the drive efficiency of driver 41 is high, the outer circumferential face of screw mandrel is formed with outside thread, the internal surface of slide block 32 is formed with the internal thread coordinated with outside thread, when motor drives leading screw 42 to rotate, leading screw 42 can establish slide block 32 moving linearly thereon by driving casing, due to slide block 32 the second inclined-plane all the time with the first contact of incline plane of the first swing arm 31, first swing arm 31 and slide block 32 relative near or relative to away from the second swing arm 33 will be made to rotate relative to the first swing arm 31, thus change the profile 331 of the second swing arm 33 and the cooperation position of roller rocker arms 11, and then change roller rocker arms 11 swing angle to obtain required valve lift.
Here, it should be noted that, leading screw 42 transmission is adopted between leading screw 42 and slide block 32, the rotary motion of leading screw 42 can be converted into moving axially of slide block 32, but conversely, the opposite force of slide block 32 can not make leading screw 42 produce rotation, thus leading screw 42 does not need locking mechanism just can ensure, and the relative position between the first swing arm 31 and the second swing arm 33 is constant.
Preferably, slide block 32 is two, two slide blocks 32 are symmetrical arranged about the first swing arm 31 and are driven by actuating mechanism 4 these two slide blocks 32 be synchronized with the movement in opposite directions or be synchronized with the movement dorsad, and the second swing arm 33 is two, and two the second swing arms 33 are symmetrical arranged about the first swing arm 31.With reference to Fig. 1, leading screw 42 is formed with two outside threads be spaced apart from each other, two externally threaded rotation directions can be contrary, correspondingly, two slide blocks 32 are positioned opposite, and corresponding in the first swing arm 31 respectively the first projection 313 of the second projection 321 on two slide blocks 32 coordinates, two the second swing arms 33 are set on two slide blocks 32 respectively.
Such as when motor rotates clockwise, two slide blocks 32 move to the direction away from the first swing arm 31 simultaneously, due to two slide blocks 32 the second inclined-plane all the time with the first contact of incline plane in the first swing arm 31, moving axially of two slide blocks 32 can make slide block 32 relatively rotate within the scope of very little one relative to the first swing arm 31, the rotation of slide block 32 drives the second swing arm 33 to rotate, thus change the profile 331 of the second swing arm 33 and the cooperation position of roller rocker arms 11, and then produce different valve lifts.When motor rotates counterclockwise, two slide blocks 32 move to the direction of contiguous first swing arm 31 simultaneously, due to two slide blocks 32 the second inclined-plane all the time with the first contact of incline plane in the first swing arm 31, moving axially of two slide blocks 32 can make slide block 32 relatively rotate within the scope of very little one relative to the first swing arm 31, the rotation of slide block 32 drives the second swing arm 33 to rotate, thus change the profile 331 of the second swing arm 33 and the cooperation position of roller rocker arms 11, and then produce different valve lifts.
The internal diameter of the first swing arm 31 can be greater than the external diameter of leading screw 42, when assembling valve lift apparatus 100, first by the first swing arm 31 empty set on leading screw 42, then screw in slide block 32 at the two ends of leading screw 42 respectively simultaneously, make the first contact of incline plane in the second inclined-plane of slide block 32 and the first swing arm 31, the first swing arm 31 can be supported by two, left and right slide block 32, after slide block 32 position is adjusted, again two the second swing arms 33 are arranged on corresponding slide block 32 respectively, then overall structure are assembled on cylinder cap.
The motor of embodiment according to a second aspect of the present invention, comprises the valve lift apparatus 100 for motor according to the above-mentioned first aspect of the present invention.
The vehicle of embodiment according to a third aspect of the present invention, comprises the motor according to the above-mentioned second aspect of the present invention.
According to the vehicle of the embodiment of the present invention other form and operation be all known to those skilled in the art, be not described in detail here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (9)
1. for a valve lift apparatus for motor, it is characterized in that, comprising:
Valve mechanism, the top of described valve mechanism is provided with roller rocker arms;
Camshaft mechanism, described camshaft mechanism is located at the top of described valve mechanism, and described camshaft mechanism has cam;
Oscillating arm mechanisms, described oscillating arm mechanisms to be located between described roller rocker arms and described camshaft mechanism and to be swung by the swing arm spin axis of oscillating arm mechanisms described in described actuated by cams around described oscillating arm mechanisms; And
Actuating mechanism, described actuating mechanism regulates the lift of described valve mechanism for driving described oscillating arm mechanisms to rotate around the adjustment spin axis of described actuating mechanism with continuous variable, wherein said swing arm spin axis and described adjustment rotation axis coincident, described oscillating arm mechanisms comprises the first swing arm, slide block and the second swing arm, described first swing arm and described cam engagement and swung around described swing arm spin axis by the first swing arm described in described actuated by cams, described slide block coordinates so that slide block swings around described swing arm spin axis described in described first swing arm driving with described first swing arm, described second swing arm coordinates so that the second swing arm described in described slider-actuated swings around described swing arm spin axis with described slide block, described second swing arm forms such profile, described profile coordinate with described roller rocker arms and described profile be configured to be suitable for obtain needed for valve lift, described actuating mechanism is suitable for driving described slide block with the cooperation position of the described profile and described roller rocker arms that change described second swing arm.
2. the valve lift apparatus for motor according to claim 1, is characterized in that, described first swing arm comprises:
The oscillating arm bracket of ring, described oscillating arm bracket is provided with fixed plate; And
Swing arm roller, described swing arm roller is located on described fixed plate rotationally, and wherein said swing arm roller often contacts with described cam.
3. the valve lift apparatus for motor according to claim 2, is characterized in that, also comprise: resetting-mechanism, and described first swing arm of described resetting-mechanism pushing and pressing often contacts with described cam to make the swing arm roller of described first swing arm.
4. the valve lift apparatus for motor according to claim 3, is characterized in that, described resetting-mechanism comprises:
Very guide, described very guide is suitable for being fixed on the cylinder cap of described motor;
Elastic component, described elastic component is located in described very guide; And
Very pin, the upper end of described very pin pushes against described first swing arm and the lower end of described very pin pushes described elastic component.
5. the valve lift apparatus for motor according to claim 2, it is characterized in that, the first projection is provided with in described oscillating arm bracket, described slide block is provided with the second projection, wherein said first projection is configured with the first inclined-plane, described second projection is configured with the second inclined-plane being suitable for coordinating with described first inclined-plane.
6. the valve lift apparatus for motor according to claim 5, is characterized in that, described actuating mechanism comprises:
Driver;
Leading screw, one end of described leading screw is connected with described driver, and described slide block is configured to the screw being suitable for coordinating with described leading screw.
7. the valve lift apparatus for motor according to claim 1, it is characterized in that, described slide block is two, and described two slide blocks are symmetrical arranged about described first swing arm and are driven by described actuating mechanism these two slide blocks be synchronized with the movement in opposite directions or be synchronized with the movement dorsad
Described second swing arm is two, and described two the second swing arms are symmetrical arranged about described first swing arm.
8. a motor, is characterized in that, comprises the valve lift apparatus for motor according to any one of claim 1-7.
9. a vehicle, is characterized in that, comprises motor as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310159362.0A CN103216291B (en) | 2013-04-28 | 2013-04-28 | For motor valve lift apparatus and there is its motor, vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310159362.0A CN103216291B (en) | 2013-04-28 | 2013-04-28 | For motor valve lift apparatus and there is its motor, vehicle |
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| CN103216291A CN103216291A (en) | 2013-07-24 |
| CN103216291B true CN103216291B (en) | 2015-09-09 |
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| CN106285825A (en) * | 2016-11-12 | 2017-01-04 | 淮南市福地环保科技有限公司 | A kind of stepless variable valve lift device |
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| CN101403326A (en) * | 2008-06-16 | 2009-04-08 | 奇瑞汽车股份有限公司 | Variable air valve lift range mechanism of internal combustion engine |
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| JP3800168B2 (en) * | 2002-11-18 | 2006-07-26 | トヨタ自動車株式会社 | Variable valve mechanism and intake air amount control device for internal combustion engine |
| US7406932B2 (en) * | 2005-08-15 | 2008-08-05 | Honda Motor Co., Ltd. | Lift-variable valve-operating system for internal combustion engine |
| JP4429286B2 (en) * | 2006-03-28 | 2010-03-10 | トヨタ自動車株式会社 | Control device for variable valve mechanism |
| KR101143305B1 (en) * | 2008-11-14 | 2013-12-06 | (주)가가소엔지니어링 | Apparatus for driving engine valve |
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| CN101403326A (en) * | 2008-06-16 | 2009-04-08 | 奇瑞汽车股份有限公司 | Variable air valve lift range mechanism of internal combustion engine |
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