CN107100690A - engine valve timing adjusting device and method - Google Patents
engine valve timing adjusting device and method Download PDFInfo
- Publication number
- CN107100690A CN107100690A CN201710188548.7A CN201710188548A CN107100690A CN 107100690 A CN107100690 A CN 107100690A CN 201710188548 A CN201710188548 A CN 201710188548A CN 107100690 A CN107100690 A CN 107100690A
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- China
- Prior art keywords
- chamber
- working solution
- stop pin
- delay
- valve timing
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000012224 working solution Substances 0.000 claims abstract description 61
- 238000002485 combustion reaction Methods 0.000 claims abstract description 38
- 230000003068 static effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 9
- 238000007599 discharging Methods 0.000 abstract description 2
- 210000000078 claw Anatomy 0.000 description 9
- 230000000979 retarding effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
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- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
- F01L2001/34459—Locking in multiple positions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a kind of devices and methods therefor that valve timing is adjusted for internal combustion engine, for by camshaft moment of torsion and working fluid pressure, adjusting inlet valve and at least one valve timing of exhaust valve.The method described in the present invention is; rotating shaft, which is embedded with hydraulic control door, to be used to operate stop pin component; the hydraulic control door is set to multiple control positions; working solution is supplied or discharges to respond the emergency shutdown or startup and normal engine running status of internal combustion engine; thus the realization for locking and discharging operation has accurate susceptibility and confidence level; because smaller by the working solution of passage, and engine performance is also modified via the adjustment of valve timing.
Description
Technical field
Exemplary embodiment of the present relates generally to a kind of engine valve timing adjusting device and its method, and in particular to
A kind of engine valve timing adjusting device and its method that engine performance is improved by strengthening lock operation reliability.
Background technology
In general, the valve timing adjustment device used is (hereinafter referred to as the device of valve timing " adjustment " or referred to as
For " device ") running status of internal combustion engine (hereinafter referred to as " internal combustion engine ") can be responded to change inlet valve or exhaust valve just
When.Valve timing adjustment device is to change inlet valve or exhaust valve by changing the angle of displacement or rotation phase of camshaft
Timing, camshaft passes through timing belt, and either timing chain or other various types of advance/retard mechanisms interact with bent axle.
In general, it is widely used to have vane type valve timing adjustment device, including with multiple-blade, such as three or four
The rotor of piece blade, the blade is driven by working solution and freely rotated in housing.In these devices, valve timing adjustment dress
Put, such as intermediate phase valve timing adjustment device, be widely used due to efficiency factor, wherein when camshaft is located at relatively
When complete advanced phase angle and the centre position at delay phase angle completely of bent axle, camshaft is locked by lock pin, and internal combustion engine
Started by the connection with bent axle.
Meanwhile, the locking means of the use lock pin can be classified as the method for utilization oil type hydraulic pressure ratchet, and utilize
The method of mechanical ratchet.Although the method oil consumption of hydraulic pressure ratchet is low but circulation path is complicated, and mechanical ratchet method is due to knot
Structure is simple so being widely used, although its oil consumption is higher than hydraulic pressure ratchet method.
Such as, Japanese Patent Laid 2000-50016 discloses a kind of valve timing adjustment device and is used to prevent noise
Produce and quickly start centrally located internal combustion engine, and Japanese Patent Laid 2000-2104 discloses one kind
Valve timing adjustment device is used for the generation for preventing noise.In addition, Japanese Patent Laid 2002-357105 discloses one kind
Valve timing adjustment device, it has two lock pins, be divided into one be used for control delay phase angle operation pin and another use
In the pin of control advanced phase angle.
Above-mentioned valve timing adjustment device is externally positioned type structure, wherein being supplied to the working solution of rotor for adjusting
The hydraulic pressure control door of flow direction is arranged on cylinder head, so as to increase or postpone into and out of the timing of valve.
Meanwhile, externally positioned type valve timing adjustment device has the drawback that, the flowing of working solution can produce flow resistance, or
Person is due in hydraulic control door and the distance lengthened between valve timing adjustment device of the housing built with rotor thus producing
Liquid leakage, thus the reduction of working fluid pressure and cause the susceptibility of valve timing adjustment device to decline.Another has the disadvantage,
In order to install hydraulic control door cylinder head hydraulic circuit become must want complexity.
Most of all, when middle phase valve timing adjusting device is applied in externally positioned type structure, in certain situation
An extra control door or a hydraulic circuit may be needed, to control the operation of lock pin, which adds structure and
The complexity of operational design.
In order to overcome above-mentioned defect, (central supply) type valve timing adjustment device built in one kind is have developed, wherein
It is installed on built in hydraulic control door in the fixing bolt of rotor, compact to design, the exterior line of whole valve timing adjustment device
Also it is very simple.Such as, Japanese published patent No. 2010-285986 discloses a kind of valve timing adjustment device, Ke Yitong
The operational structures for crossing improvement hydraulic control door quickly adjust a timing.But, in Japanese Patent Publication No. 2010-285986
Valve timing adjustment device equally has defect, because while shoving for working solution influences whether that the negative effect of lock operation can
To allow the quick control of valve timing, but it is due to rotor structure is become complicated using two detent configurations to be removed,
And because increased component parts quantity is limited improved operation confidence level.
Therefore, the various valve timing adjustment devices for internal combustion engine are studied, and it can be by effectively adjusting
Door timing improves engine performance, and there is the locking and release operation of good response degree and high-reliability can pass through simultaneously
Realized using simple structure.Applicant of the present invention passes through Korean patent No. 10-2015-0185229 and 10-2016
0001689 provides a kind of valve timing adjustment device of internal combustion engine, and it is therefore preferred to need the research of hydraulic control technology
Improve the operation sensitiveness of valve timing adjustment device and increase its reliability.
The content of the invention
This invention is intended to solve the drawbacks described above of prior art, thus certain embodiments of the present invention purpose be to provide in
The valve timing adjustment device of combustion engine, described device loses relatively low structure by using working solution, realizes the lock of high reliability
Fixed and release operation, so as to improve the performance of internal combustion engine.
Another purpose is to provide a kind of engine valve timing method of adjustment, by realizing the height with accurate response
Reliability is locked and release operation, so as to improve the performance of internal combustion engine.
The invention solves the problems that technical theme should not be limited to the description above, those skilled in the art is by from following
Any other NM technical problem is clearly learnt in description.
It is an object of the invention to solve all or part of the problem of at least one or more are above-mentioned and/or defect, and
And advantage at least described below is provided.In order to realize at least the above all or part of purpose, according to specific statement and extensively
The object of the invention of description, a main aspect of the invention is to provide a kind of valve timing adjustment device of internal combustion engine, including：
Housing, is interlocked with inner space and with bent axle；Rotor, with more blades, every blade is in the side of adjustment advanced phase angle
Advance chamber is upwardly formed, delay chamber is upwardly formed in the side at adjustment delay phase angle, each blade is arranged on to be interlocked with camshaft
Enclosure interior space in；Stop pin component, including hollow export trade, it telescopically installs the lock chamber being formed on blade
On, domestic, it is retractably installed at the inside of export trade, and the full advanced phase Angle Position in rotor is in when adjustment valve timing
The centre position between full delay phase Angle Position, stop pin component utilizes the moment of torsion being transmitted to from camshaft, by with
Housing connects to prevent rotor from rotating；Hydraulic control door, its be arranged on internal rotor with respond the running status of internal combustion engine come to
Advance chamber, delay chamber or lock chamber supply or discharge working solution, and be connected to control the behaviour of stop pin component with hydraulic pump
Make.
Preferably, but not necessarily, the housing can include multiple locked grooves, each be connected in different depth, with
Just it can be connected with stop pin component.
Preferably, but not necessarily, by allowing the major diameter groove with major diameter and the minor diameter groove with minor diameter
Each formed by predetermined depth, and allow the locked groove that there is stepped portion.
Preferably, but not necessarily, described device may further include apocenosis passage, when operation stop pin component phase
When parallactic angle is adjusted, apocenosis passage is interrupted, when stop pin component is locked, and the working solution in locked groove is discharged into outer by apocenosis passage
Face.
Preferably, but not necessarily, apocenosis passage can include the first outage being connected by blade with outside, and
By connecting the second outage being connected with locked groove with first outage.
Preferably, but not necessarily, hydraulic control door can include 5 lead to 5 doors, by respectively with advance chamber, delay
Supply or discharge working solution the channel selectivity that room is connected with lock chamber.
Preferably, but not necessarily, device may further include non-return door, for preventing hydraulic control door and hydraulic pressure
Backflow between pump.
Preferably, but not necessarily, export trade can be divided into ring and base ring.
Another main aspect of the present invention includes housing there is provided a kind of method of adjustment of engine valve timing, device,
Interlocked with inner space and with bent axle；Rotor, with more blades, each blade shape on the direction of adjustment advanced phase angle
Delay chamber is upwardly formed into advance chamber and in the side at adjustment delay phase angle, each blade is arranged on the housing interlocked with camshaft
In inner space；And stop pin component, it includes hollow export trade, and it is telescopically installed in the lock chamber being formed on blade,
Domestic, it is retractably installed in export trade, and is adjusted valve timing and be in and full advanced phase Angle Position and prolong entirely in rotor
During centre position between slow phase Angle Position, using the moment of torsion being transmitted to from camshaft, stop pin component by with housing
Connect to prevent the rotation of rotor, methods described includes：Advance chamber, delay chamber and lock are discharged when internal combustion engine remains static
Determine the working solution of room；When internal combustion engine is in idling conditions to advance chamber and delay chamber supply working solution, and discharge lock chamber
Working solution；When internal combustion engine is in normal operating state, working solution is supplied to lock chamber, optionally to advance chamber or to prolonging
Slow room supply working solution.
Preferably, but not necessarily, methods described may further include during internal combustion engine normal operating condition, in
Break to advance chamber and delay chamber supply working solution, and only provide working solution to lock chamber.
Preferably, but not necessarily, hydraulic control door can include 5 lead to 5 doors, for by respectively with advance chamber,
Supply or discharge working solution the channel selectivity that delay chamber is connected with lock chamber.
Preferably, but not necessarily, locking can be implemented with following manner：During normal engine running status,
The negative torque being transmitted to from camshaft drives export trade and domestic is allowed to optionally with major diameter groove and minor diameter groove connect successively
Connect.
Preferably, but not necessarily, locking can be implemented with following manner：During normal engine running status,
The positive-torque that is transmitted to from camshaft is while driving export trade and domestic being allowed to be connected with locked groove.
Beneficial effect
What the present invention was configured has the beneficial effect that, rotating shaft be embedded with hydraulic control door and stop pin component so that susceptibility because
The relatively small loss of working solution and become accurate, by rotating shaft blade supply working solution rotating shaft is controlled with phase of operation angle
System, hydraulic control door can switch to different positions in response to the running status of internal combustion engine, control the supply and discharge of working solution,
The locking and release operation of the stop pin component of high reliability are realized, the performance of internal combustion engine is improved by adjusting valve timing.
Brief description of the drawings
Accompanying drawing be for a further understanding of technical scheme and embodiment, and it is incorporated herein in and as this
A part for invention.In the accompanying drawings, similar elements symbol refers to identical element, wherein：
Fig. 1 is the structural representation of the engine valve timing adjusting device according to one exemplary embodiment of the present invention
Figure；
Fig. 2 is the front view along the II-II lines in Fig. 1；
Fig. 3 is illustrated according to the concept of the engine valve timing method of adjustment of one exemplary embodiment of the present invention
Figure；
Fig. 4 (a) -4 (c) is according to one exemplary embodiment of the present invention, positioned at the blade of full delay phase Angle Position
The profile of operation that is connected by negative torque with locked groove of stop pin component；
Fig. 5 (a) is the phase when the lock-out state release of the stop pin component of the blade positioned at full advanced phase Angle Position
Angle control operation is in the profile of operable state；And
Fig. 5 (b) is similar with Fig. 5 (a), is when the locking shape of the stop pin component of the blade positioned at full advanced phase Angle Position
When state discharges, profile of the phase control operation in operable state.
Embodiment
Hereafter, it is described in detail with reference to the attached drawings the exemplary embodiment of the present invention.In the accompanying drawings, for the ease of clearly saying
Bright, size, relative size, position relationship or the shape of building block may be by artificial combination, amplification or expansions.
Fig. 1 is according to one exemplary embodiment of the present invention, the structural representation of engine valve timing adjusting device 100
Figure.
The valve timing adjustment device 100 (hereinafter referred to as " valve timing adjustment device " or referred to as " device ") of internal combustion engine
It can configure as follows：The valve body 2 being connected with the camshaft 1 of internal combustion engine is expanded, (is shown not in the drawings) by chain
Or the outside of sprocket wheel 4 and valve body 2 that Timing Belt is connected with bent axle 3 is rotatably coupled, and a dish-like claw plate 5 with
The outside 4a of sprocket wheel 4 is connected.
The valve body 2 interlocked with camshaft 1 can embed hydraulic control door 8, wherein installing valve element by the elasticity of spring 7
6, valve element 6 is formed at the edge with multiple oil grooves, to switch and control treatment fluid flow to have controller (in figure with response application
Do not show) control signal magnet coil (V).
For Fig. 1 and Fig. 3, hydraulic control door is one 5 and leads to 5 doors, by between hydraulic pump P and drain tank T
Feed path S and apocenosis passage D1, D2 connection, 5 logical 5 doors are used to control supply and discharge of the working solution to device 100.
In figure 3, engine shutdown or startup control working solution are worked as at position -1, works as internal combustion engine at position -2
Working solution is controlled in idling conditions, at position -3,4,5 when internal combustion engine is in normal operating condition progress valve timing phase control
Working solution is controlled when processed.Position -3 shows advanced phase angle operation control, and position -4 is shown when lock-out state is to release completely
Synchronous adjustment when putting, position -5 shows the operation control of delay phase angle.
Meanwhile, the valve body 2 close to the outside of valve element 6 could be formed with the inlet port being connected by feed path S with hydraulic pump P
2a, and by apocenosis passage D1, D2 and drain tank T-phase outlet 2b. even in addition, valve body 2 can be correspondingly formed with it is corresponding
Be connected with advance chamber (described later on) or delay chamber (described later on) in advance mouth 2c, and with lock chamber it is (described later on) connection
The delay mouthful 2d and fore shaft 2e of lock.
Meanwhile, valve body 2 and cylindrical housings 10, rotating shaft 20 and anti-rotation device 30, rotating shaft 20 interlocked with camshaft 1 and
Inner space with housing 10 in the way of relative rotation is connected, and anti-rotation device 30 is by limiting rotating shaft 20 with respect to housing 10
Relative rotation allows rotating shaft 20 to be rotated with housing 10.
The inner surface 11 of housing 10 can highlightedly provided with multiple protruding portion points 12, be separated between each ledge it is default away from
From.Each ledge 12 is in its upper end provided with the seal groove 13 on the longitudinal direction of housing 10, and seal groove 13 can pass through sealing 14
Insertion seal groove 13 allows produces space 14 between adjacent ledges 12.
Simultaneously for Fig. 2, rotating shaft 20 can be arranged to multiple blades 22 and protrude located at axle sleeve part 21, axle sleeve part 21
It is connected with main body 2, blade 22 points to the inner surface 11 of housing 10.Each blade 22 is provided with the longitudinal direction of rotating shaft 20 in its upper end
Seal groove 23, seal groove 23 can be allowed by the insertion seal groove 23 of sealing 24 and space 15 is produced between adjacent ledges 12.
For Fig. 2, space 15 can be divided into delay chamber 15a and advance chamber 15b, delay chamber 15a around blade 12
In the direction of arrowb (that is, direction in advance), advance chamber 15b is in the direction of arrow (that is, retarding direction).
Meanwhile, axle sleeve part 21 can be carried provided with fluid passage 21a in advance, delay fluid passage 21b and lock access 21c
Preceding fluid passage 21a supplies working solution by interlocking with mouth 2c in advance, delay chamber 15a, delay fluid passage 21b by with prolong
Slow mouth 2d and advance chamber 15b interlocking supply working solution, lock access 21c passes through fore shaft 2e and lock chamber supply work (described later on)
Make liquid.
Therefore, when selectively supplying working solution by allowing, by shifting to an earlier date fluid passage 21a or delay fluid passage
21b, to delay chamber 15a or to advance chamber 15b, during so that hydraulic action is on blade 12, rotating shaft 20 will be relative to housing 10
Rotate to adjust advanced phase along arrow B directions (direction in advance), or otherwise adjust and postpone along arrow B directions (retarding direction)
Phase, whereby inlet valve or exhaust valve valve timing can be adjusted.
Meanwhile, anti-rotation device 30 can be provided with emergency operation, with prevent due to caused by external cause in the He of rotating shaft 20
Relative rotation between housing 10, and for rotating shaft 20 with respect to housing 10 freely, turn opposite to after, interlock the He of rotating shaft 20
Housing 10 is with adjustment phase place.
In short, one embodiment of the present of invention as shown in Figure 2, anti-rotation device 30 may be mounted at any one leaf
On piece 12.Here for convenience of description, be mounted with anti-rotation device 30 blade 22 can by mark reference 22A come with
Other blades 22 are distinguished.
For Fig. 1 and 2, anti-rotation device 30 can include stop pin component 40, multiple locked grooves 50, and locked groove part 40 is inserted
Insertion is located at blade 22A mounting hole 25, and locked groove 50 is located at claw plate 5, is allowed by the interconnection with stop pin component 40
Lock operation or locking release.
Here, stop pin component 40 can include upper end cover 41, hollow cylinder export trade 43 and domestic 45, and upper end cover 41 is closed
One end (left end in Fig. 1) of mounting hole 25 is closed, hollow cylinder export trade 43 passes through the external springs 42 positioned at the bottom of upper end cover 41
Elasticity is installed, and domestic 45 are installed by contained spring 44 relative to the elasticity of upper end cover 41, while being slidably connected with the inner side of export trade 43.
Stop pin component 40 can also include 43 on the outside of annular bottom end lid 46, the support export trade of annular bottom end lid 46, closing simultaneously
Close the other end (right side in Fig. 1) of mounting hole 25.
In addition, working solution can be supplied to by blade 22A provided with the lock access 22b run through, lock access 22b from mounting hole 25
Lock chamber 26 or discharge working solution around export trade 43.Meanwhile, as shown in figure 4, multiple lock chambers 50 are constituted located at claw plate 5
Anti-rotation device 30, it is multiple that lock chamber 50 can be connected to connect, and each passes through the blade 25A mounting hole 25 opposed therewith
Provided with different depth and diameter.
That is, locked groove 50 can be set as, major diameter groove 51 and the connection of minor diameter groove 52 are formed with stepped section
Part 53.
But, as the improvement of the present invention, the locked groove 50 with major diameter groove 51 and minor diameter groove 52 can be located at housing
At 10.
Meanwhile, device can include apocenosis passage 60, the apocenosis passage when stop pin component 40 carries out phase adjustment operations
60 close, and lock regular discharge locked groove 50 working solution to extraneous.As illustrated in fig. 1 and 2, apocenosis passage 60 can include first
The outage 62 of outage 61 and second, the first outage 61 with locked groove 50 located at claw plate 5 to be connected, and the second outage 62 leads to
Cross insertion blade 22A to be communicated with the outside, while with the first outage 61 being connected.
But here, unlike full-size(d) or section, the size and relative position of locked groove 50, the first outage 61 and
Two outages 62 can be artificial combination, amplification or increase, and being mutually connected for corresponding stop pin component 40 is explained for convenient
Lock relation.
Now, the operation of the valve timing adjustment device according to an embodiment of the invention thus set will be explained.
When engine shutdown or startup, opened by the way that device can be run without individually control in predeterminated position to improve
During dynamic performance, or when there is the uncontrollable state of emergency in internal combustion engine operation, stop pin component 40 must be in no list
Solely self locks to prevent rotating shaft 20 from relatively rotating for housing 10 during control.
When internal combustion engine is turned off or by emergency shutdown, also to control door 8 can in the state of position -1 as shown in Figure 2 with
The control signal of response controller (not shown).
Therefore, hydraulic pump P feed path S is blocked, and all delay chamber 15a, advance chamber 15b and lock chamber 26
Working solution connected via apocenosis passage D1, D2 by port 21a, 21b, 21c to drain tank T.Such as, when hydraulic control door 8
When changing to such as -1 state of Fig. 2 positions, while blade 22A is located at full delay phase angle, blade 22A will be by coming from camshaft
1 negative torque rotates a predetermined angle.
Now, because working solution also becomes resistance in delay chamber 15a and advance chamber 15b, locking performance can be reduced.Separately
Outside, when negative torque is acted on, injection advance chamber 15b working solution becomes resistance, and the working solution in delay chamber 15a pass through it is quiet
The effect of pressure becomes resistance.
In this state, the state of position -1 in Fig. 2, delay chamber 15a and advance chamber are switched to when hydraulic control door 8
15b is connected to drain tank T.As a result, by introducing outside air into advance chamber removal negative pressure, being removed by discharging working solution
Act on delay chamber 15a malleation.Shown in state such as Fig. 4 (a).
That is, when the pressure release of working solution due to spring 42,44 elastic export trade 43 and it is domestic 45 it is corresponding under
Drop.Now, export trade 43 and domestic 45 bottom and the intimate surface contact of claw plate 5, to allow self-locking operation to start.
In Fig. 4 (a) states, when negative torque is sent into blade 22A by camshaft 1 via rotating shaft 20, blade 22A
Predetermined angle is turned to along direction (B directions) in advance.Thus, only domestic 45 understand individually by the flexibility decrease of inner spring 44, or
Export trade 43 also can make it be inserted into major diameter groove 51 by the flexibility decrease of outer spring 42, to allow bottom to be in stepped portion 53
It is in close contact, shown in its described state such as Fig. 4 (b).
Therefore, all export trades 43 and domestic 45 are hooked on the left side wall part of the major diameter groove 51 of bottom, by
This blade 22A is changed on retarding direction being immovable ratchet running status.
Under this operating process, because apocenosis passage 60, i.e. the first and second outages 61,62 are partially communicating, notes
The part for entering the working solution of locked groove 50 is discharged to the external world, does not thus have resistance for lock operation.
In order, it is only interior when extra negative torque is applied on blade 22A by camshaft 1 via rotating shaft 20
Pin 45 individually can be by the flexibility decrease of inner spring 45, or export trade 43 also can be small to be inserted into by the flexibility decrease of outer spring 42
Diameter groove 52.Now, as shown in Fig. 2 because the first and second outages 61,62 are full communicating, the works in locked groove 50
The external world is discharged to as liquid.Therefore, the bottom of export trade 43 and the lower surface of minor diameter groove 52 are in close contact, the shape as shown in Fig. 4 (c)
State.
Here, the bottom of export trade 43 is hooked on the right wall part of major diameter groove 51 and the left side in minor diameter groove 52
Right wall part, thus blade 22A is changed into lock-out state, wherein section can not prolong direction in advance or retarding direction movement.Knot
Fruit is that stop pin component 40 is changed into being reliably connected with the locked groove 50 of claw plate 5, and rotating shaft 20 can be simultaneously with housing into rotation, simultaneously
Prevent the relative rotation relative to housing 10.
Below, by explain using the positive-torque of camshaft 1 realize self-locking operate, while blade 22A be in it is right in space 15
In anticipated future position, i.e., for delay chamber 15a sides, deviation position.
Now, general positive-torque is more than negative torque, therefore, in an embodiment of the present invention, and self-locking operation is once realized, is made
It is changed into A directions with the action direction with blade 22A positive-torque, it is opposite with the direction (B directions) of negative torque.
That is, when positive-torque be used to allow blade 22A to be rotated up a predetermined angle, stop pin component in A side
40 export trade 43 and domestic 45 also cross locked groove 50 major diameter groove 51, insertion minor diameter groove 52 is locked, such as Fig. 4 (c) institutes
The state shown.
Now, when preset time past tense after internal combustion engine start is by idling of IC engine, hydraulic control door 8 passes through control
The control signal of device processed is switched to position -2 as shown in Figure 3, and it is used to allow the state in internal combustion engine in initial steady
Part maintains one section of shortest time after starting.That is, it is necessary to which preset time reaches complete water filling, because in internal combustion
The starting starting state working solution of machine is not charged into delay chamber 15a and advance chamber 15b completely.
At this time, although hydraulic control door 8 allows working solution to be supplied to delay chamber from hydraulic pump P in Fig. 3 position -2
15a and advance chamber 15b, stop pin component 40 such as Fig. 4 (c) be maintained at lock-out state because lock chamber 26 by apocenosis passage D1,
D2 and drain tank T connections.
Meanwhile, when internal combustion engine start enters normal operating condition, the valve timing of inlet valve and exhaust valve must be adjusted
Whole, therefore, the lock-out state of Fig. 4 (c) stop pin component 40 must be released.
So, the position -4 that hydraulic control door 8 is switched to Fig. 3 is made by the control signal of controller.Thus, from hydraulic pressure
Pump P to delay chamber 15a and advance chamber 15b working solution supply are blocked, and working solution sequentially passes through fore shaft 2e, lock access 21c
Lock chamber 26 is supplied to oily passage 22b.
As a result, export trade 43 and domestic 45 correspondingly compression spring 42,43 with the pressure of responsive operation liquid, and be changed into be in phase
For the maximum propradation of upper end cover 41.At this moment, at due to elastic domestic 45 bottom and the surface of claw plate 5 of inner spring 44
In the state tight contacted between, the state as shown in Fig. 5 (a) and Fig. 5 (b).
Here, the situation that Fig. 5 (a) is shown is that the blade 22A that same stop pin component 40 is installed is in full advanced phase angle
Position, and the blade 22A that the situation of Fig. 5 (b) displays is the logical installation of stop pin component 40 is in full delay phase Angle Position.
Therefore, the blade 22A installed with stop pin component 40 can be rotated between delay chamber 15a and advance chamber 15b, profit
With acting on the moment of torsion of blade 12 and adjust the valve timing of air inlet or exhaust outlet from camshaft 1.
First, when the control signal by controller makes hydraulic control door 8 be switched to Fig. 3 position -3, control in advance
Operation starts.That is, working solution is sent to advance chamber 15b, while working solution is sent to lock chamber 26 from hydraulic pump P, and prolong
Slow room 15a connects with drain tank T-phase, allows working solution to discharge.Therefore, blade 22 is in direction in advance (B directions) or retarding direction
(B directions) is freely controlled relative to housing 10, to respond negative torque or positive-torque by camshaft 1, by convex
Wheel shaft 1 adjusts the valve timing of inlet valve or exhaust valve
Meanwhile, when the control signal by controller makes 8 times of hydraulic control door be switched to Fig. 3 position -5, delay control
System operation starts.
That is, working solution is supplied to delay chamber 15a, while working solution is supplied to lock chamber 26 from hydraulic pump P, and carry
Cup 15b even allows working solution to discharge with drain tank T-phase.Therefore, blade 22 is in direction in advance (B directions) or in retarding direction
(A directions) is any relative to housing 10 controlled, to respond negative torque or positive-torque by camshaft 1, by convex
Wheel shaft 1 adjusts the valve timing of inlet valve or exhaust valve.
The explanation done as more than, embodiments of the invention are that hydraulic control door is embedded in rotating shaft to reduce the damage of working solution
Lose, susceptibility becomes accurate, lock assembly is realized by using the hydraulic control door with multiple control positions with high reliability
Locking and release operation, the performance of internal combustion engine is improved by adjusting valve timing.
Description above illustrates embodiments of the invention, and the present invention is not limited to this.It is understood, therefore, that
It will also be recognized by those skilled in the art that described embodiment can be improved or changed with different methods, it is all these
Improve or change the thought or scope all without departing from the present invention.
Such as, although embodiments of the invention illustrate rotating shaft 20 equipped with 4 blades 22, and the quantity of blade 22 can be selected
Three quantity or other quantity are designed as, to respond the type of internal combustion engine or the working characteristics of internal combustion engine.
In addition, although embodiments of the invention illustrate the blade 22A only one of which installed with stop pin component 40, but it
Can also be two blade 22A, each is installed with stop pin component 40, in rotating shaft 20.
In addition, as shown in Fig. 5 (b), as the improvement of the present invention, export trade can be divided into top and bottom, be divided into ring 43a
With base ring 43b, the tolerance thus accumulated can be applied to outer shroud 43a outside, and the tolerance control of stop pin component 40 is relaxed with this
System.
Simultaneously, although embodiments of the invention illustrate the rotating shaft 20 installed with stop pin component 40 and existed provided with locked groove 50
Anti-rotation device 30 on claw plate 5, alternative can be designed as, and rotating shaft 20 is provided with locked groove and claw plate 5 or housing 10
Provided with stop pin component 40.
Claims (13)
1. a kind of valve timing adjustment device of internal combustion engine, it is characterised in that including：
Housing, is interlocked with bent axle and with inner space；
Rotor, with more blades, each blade is upwardly formed advance chamber in the side of adjustment advanced phase angle, and in adjustment delay
The side at phase angle is upwardly formed delay chamber, and each blade is arranged in the enclosure interior space interlocked with camshaft；
Stop pin component, the stop pin component includes hollow export trade, and it is retractably installed at the lock chamber of blade formation,
Domestic, it is retractably installed in export trade, and when adjustment valve timing be in the full advanced phase Angle Position of rotor with it is complete
When postponing the centre position between phase Angle Position, the stop pin component utilize the moment of torsion that is transmitted to from camshaft by with
Housing connects to prevent rotor from rotating；And
Hydraulic control door, it is arranged on internal rotor and responds the running status of internal combustion engine to come to advance chamber, delay chamber or locking
Room supplies working solution or discharges working solution therein, and is connected with hydraulic pump, to control the operation of stop pin component.
2. device according to claim 1, it is characterised in that the housing includes multiple locked grooves, and each locked groove is in difference
Depth is connected, so that stop pin component can be connected.
3. device according to claim 2, it is characterised in that by making major diameter groove with major diameter and with small straight
The minor diameter groove in footpath is formed by predetermined depth respectively, and the locked groove is had stepped portion.
4. device according to claim 1, it is characterised in that further comprise apocenosis passage, when operation stop pin component
When phase angle is adjusted, apocenosis passage is interrupted, when stop pin component is locked, and the working solution in locked groove is discharged into outer by apocenosis passage
Face.
5. device according to claim 4, it is characterised in that the apocenosis passage includes the first outage, and it passes through leaf
Piece is connected with outside, and the second outage, its by connected with first outage and with locked groove phase.
6. device according to claim 1, it is characterised in that the hydraulic control door includes 5 and leads to 5 doors, by respectively
Supply or discharge working solution the channel selectivity being connected with advance chamber, delay chamber and lock chamber.
7. device according to claim 6, it is characterised in that further comprise non-return door, for preventing hydraulic control door
Backflow between hydraulic pump.
8. device according to claim 1, it is characterised in that the export trade is divided into ring and base ring.
9. a kind of method for adjusting engine valve timing, the internal combustion engine includes housing, join with inner space and with bent axle
Lock；Rotor, with more blades, each blade is upwardly formed advance chamber in the side of adjustment advanced phase angle, and in adjustment delay
The side at phase angle is upwardly formed delay chamber, and each blade is arranged in the enclosure interior space interlocked with camshaft；Stop pin structure
Part, the stop pin component includes hollow export trade, and it is telescopically installed and is formed in the lock chamber of blade, domestic, and it can stretch
Contracting ground is arranged in export trade, and when adjustment valve timing is in full advanced phase Angle Position and the full delay phase angle position of rotor
During centre position between putting, the stop pin component is hindered using the moment of torsion being transmitted to from camshaft by being connected with housing
The rotation of rotation stop, it is characterised in that methods described includes：
When internal combustion engine remains static, the working solution of discharge advance chamber, delay chamber and lock chamber；
When internal combustion engine is in idling conditions, to advance chamber and delay chamber supply working solution, the working solution of lock chamber is discharged；And
When internal combustion engine is in normal operating condition, working solution is supplied to lock chamber, optionally to advance chamber or to delay chamber
Supply working solution.
10. method according to claim 9, it is characterised in that when being additionally included in normal engine running status, interrupt to
Advance chamber and delay chamber supply working solution, and only provide working solution to lock chamber.
11. method according to claim 9, it is characterised in that the hydraulic control door includes 5 and leads to 5 doors, for passing through
Supply or discharge working solution the channel selectivity being connected respectively with advance chamber, delay chamber and lock chamber.
12. method according to claim 9, it is characterised in that locking is operated as follows：In normal engine operation
During state, by the negative torque being transmitted to from camshaft drive successively export trade and it is domestic be allowed to optionally with major diameter groove and
Minor diameter groove is connected.
13. method according to claim 9, it is characterised in that locking is operated as follows：In normal engine operation
During state, by the positive-torque that is transmitted to from camshaft while driving export trade and domestic being allowed to be connected with locked groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188548.7A CN107100690B (en) | 2017-03-27 | 2017-03-27 | Internal combustion engine valve timing adjustment apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188548.7A CN107100690B (en) | 2017-03-27 | 2017-03-27 | Internal combustion engine valve timing adjustment apparatus and method |
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| CN107100690A true CN107100690A (en) | 2017-08-29 |
| CN107100690B CN107100690B (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710188548.7A Active CN107100690B (en) | 2017-03-27 | 2017-03-27 | Internal combustion engine valve timing adjustment apparatus and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3530892A1 (en) * | 2018-02-21 | 2019-08-28 | ECO Holding 1 GmbH | Hydraulic valve for a pivoting engine adjuster of a camshaft |
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| CN106481379A (en) * | 2015-08-31 | 2017-03-08 | 博格华纳公司 | Multi-mode variable cam timing phaser |
| DE102015116024A1 (en) * | 2015-09-22 | 2017-03-23 | Hilite Germany Gmbh | Schwenkmotorversteller a camshaft |
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| US20020139332A1 (en) * | 2001-03-28 | 2002-10-03 | Akihiko Takenaka | Variable valve timing apparatus |
| CN1793619A (en) * | 2004-12-20 | 2006-06-28 | 博格华纳公司 | Remote variable camshaft timing control valve with lock pin control |
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| EP3530892A1 (en) * | 2018-02-21 | 2019-08-28 | ECO Holding 1 GmbH | Hydraulic valve for a pivoting engine adjuster of a camshaft |
| US11300017B2 (en) | 2018-02-21 | 2022-04-12 | ECO Holding 1 GmbH | Hydraulic valve for a cam phaser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107100690B (en) | 2021-07-06 |
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Address after: 168 Wanyan Road (Yudong), Chengshan District, Changyuan City, Gyeongsangnam do, South Korea Patentee after: Bradawana LLC Patentee after: PINE ENGINEERING CO.,LTD. Address before: 168 Wanyan Road (Yudong), Chengshan District, Changyuan City, Gyeongsangnam do, South Korea Patentee before: DELPHI POWER MECHANISM KOREA LTD. Patentee before: PINE ENGINEERING CO.,LTD. |
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Address after: 168 Wanyan Road (Yudong), Chengshan District, Changyuan City, Gyeongsangnam do, South Korea Patentee after: DELPHI POWER MECHANISM KOREA LTD. Patentee after: PINE ENGINEERING CO.,LTD. Address before: South Korea Gyeongnam Changwon City mountain rock end Road 168 Patentee before: DELPHI POWER MECHANISM KOREA LTD. Patentee before: PINE ENGINEERING CO.,LTD. |