CN107401434A - Device for actuating a rocker arm of a valve train of an internal combustion engine - Google Patents
Device for actuating a rocker arm of a valve train of an internal combustion engine Download PDFInfo
- Publication number
- CN107401434A CN107401434A CN201710326361.9A CN201710326361A CN107401434A CN 107401434 A CN107401434 A CN 107401434A CN 201710326361 A CN201710326361 A CN 201710326361A CN 107401434 A CN107401434 A CN 107401434A
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- China
- Prior art keywords
- lever shaft
- control lever
- control
- rocking arm
- conversion element
- Prior art date
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- Granted
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000000994 depressogenic effect Effects 0.000 claims description 8
- KJFBVJALEQWJBS-XUXIUFHCSA-N maribavir Chemical compound CC(C)NC1=NC2=CC(Cl)=C(Cl)C=C2N1[C@H]1O[C@@H](CO)[C@H](O)[C@@H]1O KJFBVJALEQWJBS-XUXIUFHCSA-N 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002000 scavenging effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L2013/10—Auxiliary actuators for variable valve timing
- F01L2013/101—Electromagnets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention relates to a device for the electromechanical actuation of at least one switchable rocker arm (1) for a valve train of an internal combustion engine, characterized in that an axially displaceable actuating shaft (2) is provided, which has an actuating element (8) that can be actuated by an electrically controllable actuator (9), wherein the displacement of the actuating shaft (2) can be controlled by the movement of a camshaft (10) via the actuating element (8) and can be converted by means of a conversion element (3) into a rotary motion for spring-biasing at least one actuating lever (5, 6) for actuating at least one switching element (7) of the rocker arm (1).
Description
Technical field
The present invention relates to a kind of device for for electromechanical manipulating at least one changeable rocking arm, the rocking arm is used for interior
The valve actuating gear of combustion engine.
Background technology
From the A1 of DE 101 55 827 and the A1 of DE 100 48 619 it is known can hydraulic pressure switching rocking arm.In the design side
In case, following situation plays detrimental effect, and the situation is under the running status that internal combustion engine determines, especially in engine start not
There is provided with enough sizes and not with the required reaction time for the hydraulic medium pressure required for switching.
Although such as known changeable rocking arm from EP 2050933A1, US 2008006232A and US 5544626
Electromechanical manipulation device, wherein can be independently of the switching that rocking arm is performed by hydraulic medium pressure caused by internal combustion engine, still
The structure of the manipulation device is to expend and is that cost is high, is needed particularly with each changeable rocking arm to be manipulated independent
Actuator.
The content of the invention
Therefore, the purpose that is based on of the present invention is：Simplify the structure of the device of the above-mentioned type and cost-effectively carry out
Design.
The purpose is realized by the device for for electromechanical manipulating at least one changeable rocking arm according to the present invention.
Other favourable designs are drawn from specification and drawings.
A kind of device for being used to manipulate at least one changeable rocking arm electromechanically is proposed, the rocking arm is used for internal combustion engine
Valve actuating gear, described device are provided with the control lever shaft that is axially movable, the control lever shaft have by can electric control execution
The steerable operating element of device, wherein the movement of control lever shaft can be controlled by the motion of camshaft via operating element.Here,
The movement of control lever shaft can be converted into by conversion element by rotary motion, the rotary motion is used at least one control stick
Spring pre-tightening, the control stick are used at least one switching device of operating rock arm.Because operating element can be only manipulated electromechanically
And the movement of control lever shaft can be controlled by camshaft, so avoiding driving control lever shaft electromechanically with expending.In addition, via extremely
The spring pre-tightening of a few control stick also realizes the manipulation of multiple changeable rocking arms in a manner of being offset one from another on the time.
This, by can electric control actuator and operating element can trigger the switchings of multiple changeable rocking arms.
The movement for simply controlling control lever shaft, the groove can be realized by the groove guide portion being torsionally connected with camshaft
Guide portion can be scanned (abtastbar) by operating element.It is preferred here that：Manipulation can be controlled by groove guide portion
Axle moving back and forth between two final positions, to switch rocking arm.
Groove guide portion can be manufactured circumferentially in the outer radius for the ring that can be plugged on camshaft in a straightforward manner, be used for
Engaging manoeuvre element.
If groove guide portion has two sections, then realizes and simply controls control lever shaft between two final positions
Move back and forth, wherein the section can be scanned successively in cam axle by operating element, wherein the first section is used for
Control lever shaft is controlled from the first final position to the movement in the second final position, and the second section is final from second for controlling
The movement that position is returned in the first final position.
In the particularly simple embodiment of the present invention, conversion element at least section it is configured to rotate setting
Pipe.Here, in order to which the axial movement of control lever shaft to be converted into the rotary motion on pipe, the former is with an end section by shifting
Dynamic-rotation connection is inserted into pipe.
For movement-rotation connection, control lever shaft can be joined to relative at pipe by the driving device protruded in outer radius
In the recess answered, the recess favours the mobile axis stretching, extension of control lever shaft and for guiding, and the recess preferably can be simple
The elongated hole of manufacture.
As an alternative it is possible that：Helical teeth portion, for movement-rotation connection, the helical teeth are provided with the outer radius of control lever shaft
Portion is joined in the corresponding helical teeth portion of the inner radius of pipe.
It is at least one coaxially to plug in the design that preferably simply can be manufactured and install of the present invention
Control stick on to conversion element can be rotatably arranged on conversion element.Here, in order to which spring pre-tightening, torsional spring mechanism are same
It is arranged in a manner of it can be inserted on conversion element in the line of force between conversion element and control stick axle.
The apparatus according to the invention realizes the standard switching device for switching changeable rocking arm electromechanically.On the other hand, provided with extremely
Few two control sticks, the control stick are used to manipulate switching device, and the switching device is displaceably arranged on rocking arm
It is used to switch in the guiding piece at place.Herein, it is preferable that provided with least one element that reclines for engine lever, the patch
It is connected by element with switching device, preferably following simple pin, the pin is transversely to the direction of travel with the long side of rocking arm
Locate outstanding mode and be directed across switching device and the guiding piece in both sides fluting.Here, also it can be considered that others are set
Meter scheme, the design realize the movement that switching device is realized by engine lever, and especially, the element that reclines also can
Formed with switching device single type.
Advantageously：In order to which control lever shaft is locked in its final position, depressed part is provided with as locking wheel in outer radius
Exterior feature, at the depressed part, spring-loaded locking member can be locked and unlocked when control lever shaft is moved in final position
Part.Therefore, it is possible to which control lever shaft can be fixed on to the most final position of restriction in the state of actuator is not powered in a straightforward manner
In putting.
It is also advantageous in that：Control stick is able to coaxially be inserted on conversion element with a fixed section, and has
At least one manipulation hook protruded at the conversion element.
Preferably, torsional spring mechanism, the rotation of leg are formed by the helix torsion spring with two rotation legs
Portion is coaxially inserted in the outer radius of conversion element.Here, on the one hand helix torsion spring connects by arcuate segments and conversion element
Connect, and be on the other hand connected to respectively on control stick by the free end of its leg and be used for pretension, the arcuate segments will
Two rotation leg connections of the helix torsion spring, the control stick are arranged on conversion element.
As an alternative it can be considered that：Provided with the actuator for producing rotary motion, the actuator is used to directly drive conversion
Element and for producing spring pre-tightening.This needs the actuator of significantly bigger design size certainly, and the actuator has phase
Answer bigger quality, bigger structure space and Geng Gao cost.
The device can be applied especially advantageously in the valve actuating gear of internal combustion engine, to manipulate multiple changeable shake
Arm, the rocking arm are used on the especially time carry out stroke switching or stroke cut-out with offseting one from another, are used for particularly for being switched to
The low lift cams of decompression.
Brief description of the drawings
Other features of the present invention are drawn from following description and from accompanying drawing, simplifiedly show this in the drawing
Multiple embodiments of invention.It shows：
Fig. 1 shows the stereogram of the apparatus according to the invention in first embodiment, and described device is used to switch at least one
Individual changeable rocking arm, the rocking arm are used for the valve actuating gear of internal combustion engine,
Fig. 2 shows another stereogram of device,
Fig. 3 shows the top view of device,
Fig. 4 shows the part figure of Fig. 2 amplification,
Fig. 5 shows the part figure of Fig. 2 another amplification,
Fig. 6 shows the stereogram of the device in second embodiment.
Embodiment
The device shown in the first embodiment in Fig. 1 to 3 has：Control lever shaft 2, the control lever shaft can be final at two
Axially moved back and forth between position；The movement of the control lever shaft is converted into rotation fortune by conversion element 3, the conversion element
It is dynamic；With torsional spring mechanism 4, the torsional spring mechanism can be by rotating the conversion element pretension and being used for pretension branch
The control stick 5,6 on conversion element 3 is supportted, the control stick is used at least one switching device 7 of operating rock arm 1, wherein institute
State device to be used to manipulate at least one changeable rocking arm 1 electromechanically, the rocking arm is used for the valve actuating gear of internal combustion engine.Behaviour
The double-head arrow that is moved through of the longitudinal axis 2 shows (Fig. 1).Here, control lever shaft 2 is configured to bar, and conversion element 3 is configured to rotatable
The pipe of setting.
The movement of control lever shaft 2 can be controlled by the rotational motion of the camshaft 10 of internal combustion engine via groove guide portion 11.It is right
This, the diameter parallel of control lever shaft 2 is set in camshaft 10, and is provided with operating element 8, and the operating element is connected with control lever shaft 2.
The operating element is movably disposed in the continuous transverse holes at the end section of control lever shaft 2 and is configured to pin, borrows
Groove guide portion 11 for controlling control lever shaft 2 can be scanned by helping the end towards camshaft of the pin.Operating element 8 by
The widening portion of its plate-like at the free end of camshaft 10 stretches out in the outer radius of control lever shaft 2 from transverse holes, and
By free end via spring supporting on control lever shaft 2, the spring is coaxially around operating element 8.Electromechanical actuator 9
It is bonded on by armature on the outside of the widening portion of plate-like, the actuator can be by the controller for motor electronics control of internal combustion engine
System, the armature can be by being powered to move in an electromagnetic manner to actuator 9.Operating element 8 by the energization of actuator 9 and
The motion of armature overcomes the power of spring to be moved in transverse holes, and herein by its opposite end from the transverse axis
Removed in hole, and can be joined in groove guide portion 11 and be used to scan, the groove guide portion is arranged on the camshaft of internal combustion engine
On 10.When terminating to be powered to actuator 9, operating element 8 is extruded from groove guide portion 11 again by the power of spring, and by
This is decoupled with camshaft 10.
Groove guide portion 11 is formed in the outer radius of ring, and the ring is torsionally coaxially plugged on the end of camshaft 10.
By the rotation of camshaft 10, via the operating element 8 being joined in groove guide portion 11 control lever shaft 2 can be controlled final at two
Axial between position moves back and forth.It can be used herein to scan by the operating element 8 of the electric control of actuator 9 and be guided by groove
The controlling curve (Steuerkurve) that portion 11 is formed.The controlling curve is made up of two sections, external diameter of the section in ring
Place's axially reciprocal stretching, extension along ring circumferential direction successively S-shaped between two greatest limits (Maxima).Here, controlling curve
Axial slope produces axial feed of the control lever shaft 2 along corresponding axial direction.Controlling curve has the first section and the second section,
First section is used to control from the first final position to the movement in the second final position, and second section is used to control
The movement returned to from the second final position in the first final position.In this manner, when camshaft 10 rotates a circle, can be most
Reciprocally mobile operating axle 2 between final position is put.In the view, control lever shaft 2 is in the most final position that it moves right in plan
In putting, it is used to scan wherein being moved into groove guide portion 11 by the electrically-energized operating element 8 of actuator 9, and it is bent in control
Line guides in the axial greatest limit on the right side of plan.
In order to which control lever shaft 2 is locked in its final position in the case of the energization of cut-out actuator 9, set in outer radius
There are two recesses 12,13 as locking profile, when control lever shaft 2 is moved in corresponding final position, spring can be added
The locking member 14 of load is locked at the locking profile, and can be unlocked again when moving back.In order to lock or solve
Locking member 14 is locked, is provided with corresponding rake in the direction of movement at recess 12,13.
At the end section of the departure maneuvering element 8 of control lever shaft, control lever shaft 2 is coaxially inserted by movement-rotation connection
Enter into the pipe of conversion element 3.Movement-the rotation connection is made up of connected driving device 15, and the driving device is manipulating
The outer radius of axle 2 is prominent and is fixed in a manner of being configured to pin in the transverse holes of control lever shaft 2 and is attached to conversion element 3
It is used to guide in the elongated hole 16 at place, the elongated hole favours longitudinal axis stretching, extension.Here, the axial stroke of control lever shaft 2 is via elongated hole
Driving device 15 at 16 is converted into rotation or the pivoting action of pipe.By from the first final position shown by it in figure to
Move left control lever shaft 2, by driving device 15 as represented by arrow rotary transition piece 3 (Fig. 1) at elongated hole 16.
By rotary transition piece 3, can pretension be arranged on torsional spring mechanism 4 on the conversion element.The torsion
Turn spring mechanism to be formed by helix torsion spring, the helix torsion spring is placed coaxially on pipe by two rotation legs
On, the rotation leg is axially connected with camber member.Here, camber member along ring circumferential direction in order to pretension by rotate pipe and hang
At pin, the outer radius that the pin is arranged on the pipe in hole and in conversion element 3 protrudes.Leg is rotated to correspond roughly to
The arm width axes for the rocking arm 1 to be switched are arranged on pipe at interval to each other.Two control sticks 5,6 are rotationally or pivotably
Ground is supported on the pipe of conversion element 3 and is arranged on the outside of rotation leg of torsional spring mechanism 4.Here, rotation of leg
Portion is suspended on control stick 5,6 respectively by the external free end in its axial direction to be used to rotate leg (Fig. 3) described in pretension.With this
Mode, rotation leg spring is directly arranged in the line of force between conversion element 3 and control stick 5,6, and control stick 5,6 is simultaneously
Axially axially it is stabilized on the pipe of conversion element 3 via spring suspension.Control stick 5,6 is respectively by the fixation of annular
Section is coaxially inserted on pipe, and with hook (Fig. 4) is manipulated, the outer radius that the manipulation is hooked in fixed section protrudes.It is described
Manipulation be hooked at the convex shoulder at its fixation section on side and outside, in order to hang rotation leg and by the rotation leg
Free end surround (Fig. 3).
Switching device 7, which is movably disposed at the boom end region of the interior bar of rocking arm 1 in guiding piece 17, to be used to switch,
And it is configured to locking bolt.The switching device is used to couple interior bar and the outer bar 18 of rocking arm 1, and the outer bar can be relative to institute
Interior bar is stated pivotally to set.On the other hand, by overcoming the spring force of unshowned back-moving spring to move, switching device 7 is from Fig. 2,4 and
It can be transferred in the position retracted in guiding piece 17 shown in 5 in coupling position, interior bar and outer bar are coupled, it is described
Position is coupled to remove from guiding piece by the end of the side of the switching device.
The free end that guiding piece 17 starts from interior bar has narrow orifice transverse to the moving direction of switching device 7 in both sides composition
19th, 20 (Fig. 2 and 4).Here, in order to be manipulated by control stick 5,6, the transverse bolt 20 of aciculiform is outwards dashed forward with the long edge position in rocking arm
The mode gone out is laterally directed across switching device 7 and through the narrow orifice 19,20 at the sidepiece of guiding piece.Here, control stick 5,6
By its manipulate hook abut in manipulate switching device 7 pin 21 such as lower end, length of the end in the rocking arm 1
Protruded at side.
Under shown running status, switching device 7 is in the position that it is retracted in guiding piece, and control lever shaft
2 are in its first final position (Fig. 1 and 2).By being powered to actuator 9 and operating element 8 being engaged into groove guide portion 11
In, control lever shaft 2 is axially movable, and rotational motion thus can be delivered to conversion element 3 via the driving device at elongated hole
Guan Shang., being capable of pretension torsional spring mechanism 4 by the way that control stick 5,6 is decoupled with rotatably managing.Here, control stick 5,6 by
It, which manipulates hook and tightly abutted in advance on transverse bolt 20, is used to switch rocking arm 1, and the transverse bolt is connected with switching device 7.Work as interior bar
Do not pivoted each other when coupling opposite in position with outer bar, in the case of discharging switching device 7 in the cam base circle stage,
As represented in Figure 5 by arrow, by pivot lever 5,6, switching device 7 is via transverse bolt 20 from guiding piece 17
Middle removal, to overcome the elastic force of unshowned back-moving spring to enter from the position retracted in guiding piece 17 of the switching device
Row switching, to be coupled with outer bar 18.
In the state of the locking of rocking arm 1, small cam lift can be led to via the small lift cams 22,23 of camshaft 10
Cross rocking arm 1 to be delivered on the scavenging air valve 24 of internal combustion engine (Fig. 1 to 3), the small lift cams contact with outer bar 18 and are configured to institute
The relief cam of meaning.By being powered again to actuator 9, the and can of control lever shaft 2 is enough withdrawn into the first final position, and is reversed
Spring mechanism 4 can relax, and thus switching device 7 can move back its initial bit in guiding piece by the power of back-moving spring
In putting, and control stick 5,6 can pivot to returning.Thus, rocking arm 1 can be unlocked or interior bar and outer bar 18 can take off again
Coupling.In the unlocked state, interior bar and outer bar 18 can pivotally, and larger cam lift can only be delivered to internal combustion engine
Scavenging air valve 24 on, the cam lift can intercept via the cam roller 25 of interior bar from the full lift cam 26 of camshaft 10
(abgreifbar)。
Fig. 5 shows enlarging section component of the device in the region combined with rocking arm 1, its do not have torsional spring mechanism 4 and
There is no control stick 5,6.In the region of pin 21, depressed part 27, the pin are provided with the downside of the direction pin of outer bar 18
Guided in a manner of prominent on the outside in interior bar in narrow orifice 19,20, the depressed part as spill recess along outer bar 18
Pivotal orientation towards its upside extend.Depressed part 27 provides free space for pin 21 at outer bar, so as in the unblock of rocking arm 1
Avoid colliding with pin 21 in the case where outer bar 18 pivots relative to interior bar under state, the pin is prominent on the outside of interior bar.
Control lever shaft 2 and conversion element 3 are set with the diameter parallel of camshaft 10.Here, control lever shaft 2, conversion element 3, holding
Row device 9 and locking member 14 can be supported in the corresponding hole of the unshowned cylinder head of internal combustion engine.Also it can be considered that via
Each bearing part or bearing frame support.
Changeable rocking arm 1 is with known to different embodiments.The rocking arm is substantially by two bar mutually supported structures
Into wherein one in the bar is always in valve contact site, and so-called mobile jib can be in a manner of pivotably moving
Support, and another bar, so-called secondary bar are supported on mobile jib in a manner of pivotably moving and had access to when needed.
Thus, it is possible to carry out stroke switching or cut-out.Under lockout mode, secondary bar is generally implemented idle stroke and transported as so-called lost motion
It is dynamic.Interior bar can be supported on the boom end region of support-side in this as mobile jib in a manner of pivotably moving.Here, outer bar
18 surrounded as secondary bar at least section interior bar and at the boom end region of valve side via pivot center pivotably to move
Mode be supported in interior bar.Outer bar and interior bar 18 are mutually tightened to home position via back-moving spring mechanism or couple position in advance
In, in the home position or position is coupled, the outer bar and interior bar can be coupled to each other by switching device 7.Switching member
Part 7 is arranged at interior bar in guiding piece 17, and the guiding piece starts from the boom end region of the support-side of the switching device
The end of side.
Fig. 6 shows the second embodiment of the apparatus according to the invention.There, in order to control lever shaft 2 and conversion element 3 are moved
Dynamic-rotation connection, is provided with helical teeth portion 28, the helical teeth portion is joined in helical teeth portion 29, the helical teeth in the outer radius of control lever shaft 2
Portion 29 is configured to interior teeth portion in the inner radius of the pipe of conversion element 3.Here, control lever shaft 2 is in the helical teeth portion 28,29 being engaged with each other
Axial movement be converted into the rotation at pipe or pivoting action.
The apparatus according to the invention also realizes that manipulating the multiple changeable of cam base circle stage staggered with the time shakes
Arm 1, the cam base circle stage are used for multiple ventilations of internal combustion engine of the ignition order control with multiple cylinders to stagger with the time
Valve 24.On the other hand, the control stick 5,6 of respective numbers is successively set on conversion element 3, the control stick can be held by triggering
Row device 9 is used to drive by rotary transition piece 3 and the corresponding pretension of torsional spring mechanism 4 of pretension, and when corresponding rocking arm 1
When dynamic cam was reached in its basic circle stage and system does not stress, it can switch successively.
Reference numerals list
1 rocking arm
2 control lever shafts
3 conversion elements
4 torsional spring mechanisms
5 control sticks
6 control sticks
7 switching devices
8 operating elements
9 actuators
10 camshafts
11 groove guide portions
12 recesses
13 recesses
14 locking members
15 driving devices
16 elongated holes
17 guiding pieces
18 outer bars
19 narrow orifices
20 narrow orifices
21 pins
22 small lift cams
23 small lift cams
24 scavenging air valves
25 cam rollers
26 full lift cams
27 depressed parts
28 helical teeth portions
29 helical teeth portions
Claims (10)
1. a kind of device for being used to manipulate at least one rocking arm (1) that can switch electromechanically, the rocking arm are used for the gas of internal combustion engine
Door drive mechanism,
Characterized in that, provided with the control lever shaft (2) that can be moved axially, the control lever shaft has the actuator by energy electric control
(9) controllable operating element (8), wherein the movement of the control lever shaft (2) can pass through cam via the operating element (8)
The motion of axle (10) controls, and the control lever shaft (2) is moved through conversion element (3) and can be converted into rotary motion,
The rotary motion is used at least one control stick (5,6) spring pre-tightening, and the control stick is used to manipulate the rocking arm (1)
At least one switching device (7).
2. device according to claim 1, it is characterised in that in order to control the control lever shaft (2) two final positions
Between move back and forth, provided with groove guide portion (11), the groove guide portion is torsionally connected with the camshaft (10), the groove
Guide portion can be scanned by the operating element (2).
3. device according to claim 2, it is characterised in that the groove guide portion (11) can be plugged into the camshaft
(10) outer radius of the ring on is circumferentially formed for engaging the operating element (3).
4. the device according to Claims 2 or 3, it is characterised in that the groove guide portion (11) has two sections, described
Section can be scanned successively when the camshaft (10) rotates by the operating element (8), wherein the first section is used to control
The control lever shaft (2) is made from the first final position to the movement in the second final position, and the second section is used to control from institute
State the movement that the second final position is returned in first final position.
5. device according to any one of claim 1 to 4, it is characterised in that the conversion element (3) at least section
It is configured to rotate the pipe set, and the control lever shaft (2) is inserted into an end section by movement-rotation connection
In the pipe.
6. device according to any one of claim 1 to 5, it is characterised in that for movement-rotation connection, the behaviour
The longitudinal axis (2) is joined in the corresponding elongated hole (16) at the pipe by the driving device (15) protruded in the outer radius, institute
State the mobile axis stretching, extension that elongated hole favours the control lever shaft (2).
7. device according to any one of claim 1 to 6, it is characterised in that for movement-rotation connection, the behaviour
The longitudinal axis (2) is joined to by the helical teeth portion (28) of outer radius in the corresponding helical teeth portion (29) of the inner radius of the pipe.
8. device according to any one of claim 1 to 7, it is characterised in that at least one behaviour that can coaxially plug
Vertical pole (5,6) can be rotatably arranged on the conversion element (3), and in order to which spring pre-tightening, torsional spring mechanism (4) are coaxial
Ground is arranged on the power between the conversion element and the control stick (5,6) in a manner of it can be inserted on the conversion element (3)
In line.
9. device according to any one of claim 1 to 8, it is characterised in that provided with least two control sticks (5,6),
The control stick is used to manipulate the switching device (7), and the switching device is displaceably arranged on the rocking arm (1)
It is used to switch in the guiding piece (17) at place, wherein at least one pin (21) is transversely to the direction of travel with the length of the rocking arm (1)
Outstanding mode is directed across the switching device (7) and through the guiding piece (17) slotted in both sides at side, with
Recline the control stick (5,6).
10. device according to any one of claim 1 to 9, it is characterised in that in order to which the control lever shaft (2) is locked
In its final position, depressed part (12,13) conduct locking profile is provided with the outer radius, at the depressed part, is being incited somebody to action
The control lever shaft (2) can lock and unlock spring-loaded locking member (14) when being moved in the final position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016208472.0A DE102016208472A1 (en) | 2016-05-18 | 2016-05-18 | Arrangement for the electromechanical actuation of at least one switchable drag lever for a valve train of an internal combustion engine |
| DE102016208472.0 | 2016-05-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107401434A true CN107401434A (en) | 2017-11-28 |
| CN107401434B CN107401434B (en) | 2021-05-28 |
Family
ID=60255337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326361.9A Active CN107401434B (en) | 2016-05-18 | 2017-05-10 | Device for actuating a rocker arm of a valve train of an internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107401434B (en) |
| DE (1) | DE102016208472A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075530A (en) * | 2018-10-19 | 2020-04-28 | 舍弗勒技术股份两合公司 | Variable valve gear of piston internal combustion engine |
| CN114233429A (en) * | 2020-09-09 | 2022-03-25 | 舍弗勒技术股份两合公司 | Switching device for a switchable valve train component of an internal combustion engine and method for producing a switching element of a switching device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020103367A1 (en) | 2020-02-11 | 2021-08-12 | Schaeffler Technologies AG & Co. KG | Switchable rocker arm |
| DE102020117551A1 (en) | 2020-07-03 | 2022-01-05 | Schaeffler Technologies AG & Co. KG | Switchable rocker arm |
| DE102021132809A1 (en) | 2021-12-13 | 2023-06-15 | Schaeffler Technologies AG & Co. KG | Switchable rocker arm |
| DE102022130053A1 (en) | 2022-11-14 | 2024-05-16 | Schaeffler Technologies AG & Co. KG | Lever arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075530A (en) * | 2018-10-19 | 2020-04-28 | 舍弗勒技术股份两合公司 | Variable valve gear of piston internal combustion engine |
| CN111075530B (en) * | 2018-10-19 | 2023-10-20 | 舍弗勒技术股份两合公司 | Variable valve gear for piston internal combustion engine |
| CN114233429A (en) * | 2020-09-09 | 2022-03-25 | 舍弗勒技术股份两合公司 | Switching device for a switchable valve train component of an internal combustion engine and method for producing a switching element of a switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016208472A1 (en) | 2017-11-23 |
| CN107401434B (en) | 2021-05-28 |
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