CN104179542B - Camshaft phase adjuster and its rotor and variable cam timing system - Google Patents
Camshaft phase adjuster and its rotor and variable cam timing system Download PDFInfo
- Publication number
- CN104179542B CN104179542B CN201310199403.9A CN201310199403A CN104179542B CN 104179542 B CN104179542 B CN 104179542B CN 201310199403 A CN201310199403 A CN 201310199403A CN 104179542 B CN104179542 B CN 104179542B
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- Prior art keywords
- groove
- oil
- rotor
- camshaft
- phase adjuster
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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
- F01L2001/34423—Details relating to the hydraulic feeding circuit
Abstract
The invention discloses a kind of camshaft phase adjuster and its rotor and variable cam timing system, which includes：Matrix with front/rear end；It is multiple be fixed on matrix, circumferentially spaced arrangement and the blade that extends radially outward；The rear end face of matrix is equipped with：The first groove for accommodating camshaft mandrel end；Multiple the first oil grooves for being located at the first groove periphery and being communicated with the first groove, and the first oil groove runs through the side wall of matrix radially；The second groove communicated positioned at the first groove periphery and with the first groove；The front end face of matrix is equipped with：Multiple the second oil grooves for running through base side walls radially, the second, first oil groove is located at the both sides of blade, and all second and first oil groove is circumferentially staggered；The axially extending bore communicated with the second groove and the second oil groove is equipped between the front/rear end of matrix.The axial dimension of rotor can be reduced using the rotor of the present invention, simplify the manufacturing process of rotor, reduce the manufacturing cost of rotor.
Description
Technical field
The invention belongs to technical field of internal combustion engines, more particularly to a kind of rotor of camshaft phase adjuster, and one kind
Including the camshaft phase adjuster of the rotor and a kind of variable cam timing comprising the camshaft phase adjuster
（Variable Camshaft Timing, abbreviation VCT）System.
Background technology
It, can be by changing the phase between bent axle and camshaft come to scavenging air valve according to the current operating condition of internal combustion engine
Port timing have an impact, it is possible thereby to realize advantageous effect, such as reduce the generation of fuel consumption and harmful substance.It is this
The device that phase between bent axle and camshaft can be adjusted is camshaft phase adjuster.
As shown in Figure 1, a kind of existing camshaft phase adjuster includes：Stator 1 has multiple radially inwardly extending
Boss 11 is formed with hydraulic pressure chamber 12 between two neighboring boss 11；Rotor 2 is rotatably disposed in stator 1, and rotor 2 has more
Hydraulic pressure chamber 12 is divided into first pressure room 12a and second pressure room 12b by a blade 21 extended radially outward, blade 21.
Wherein, stator 1 and bent axle（It is not shown）Transmission is connected, rotor 2 and camshaft（It is not shown）It is fixedly connected.
In conjunction with shown in Fig. 2 to Fig. 4, rotor 2 is internally provided with two rows of arranged along 2 axially spaced-apart of rotor and along the radial direction of rotor 2
Through the oilhole of rotor 2, an outage is the first oilhole 22, and another outage is the second oilhole 23, and edge turns per outage
The circumferentially-spaced arrangement of son 2.Wherein, in conjunction with shown in Fig. 1, the first oilhole 22 is communicated with first pressure room 12a, the second oilhole 23 with
Second pressure room 12b is communicated, and the first oilhole 22, the second oilhole 23 are distributed in the opposite sides of blade 21.In pressure state
Under engine motor oil can enter first pressure room 12a via the first oilhole 22 of rotor 2, with drive rotor 2 relative to fixed
Son 1 rotates clockwise, and then valve lead or delay is made to open；Alternatively, the engine motor oil under pressure state
Second pressure room 12b can also be entered via the second oilhole 23 of rotor 2, make to turn counterclockwise relative to stator 1 with drive rotor 2
It is dynamic, and then valve delay is made to open or open in advance.
But existing rotor 2 has following defect：It is formed after the general structure of rotor 2, also needs to utilize bore process shape
At the first oilhole 22 and the second oilhole 23, keep the manufacturing process of rotor 2 complex, also increases the manufacturing cost of rotor 2；Separately
Outside, the inside of rotor 2 is respectively positioned on due to the first oilhole 22 and the second oilhole 23 and is arranged along the axially spaced-apart of rotor 2, cause to turn
The axial dimension of son 2 is larger；In addition, since the first oilhole 22 with the second oilhole 23 is to be formed using bore process, therefore need to increase
The axial dimension of rotor 2, to increase the mechanical strength of rotor 2, prevent bore process from can not carry out.
Therefore, it is urgent to provide a kind of rotors of improved camshaft phase adjuster to solve problem above.
Invention content
The problem to be solved in the present invention is：The rotor axial size of camshaft phase adjuster is larger, the manufacture work of rotor
Skill is complicated, the manufacturing cost of rotor is higher.
To solve the above problems, the present invention provides a kind of rotors of camshaft phase adjuster, including：
Matrix, described matrix have front end face and rear end face；
Multiple blades being fixed on matrix, multiple blades are circumferentially spaced to be arranged and extends radially outward；
The rear end face of described matrix is equipped with：The first groove for accommodating camshaft mandrel end；It is multiple recessed positioned at described first
The first oil groove slot periphery and communicated with the first groove, and first oil groove runs through the side wall of matrix radially；Positioned at institute
The second groove stated the first groove periphery and communicated with the first groove；
The front end face of described matrix is equipped with：Multiple the second oil grooves for running through base side walls radially, second oil groove,
First oil groove is located at the both sides of blade, and all second oil grooves and the first oil groove are circumferentially staggered；
Axially extending bore, the axially extending bore and the second groove and second are equipped between the rear end face and front end face of described matrix
Oil groove communicates.
Optionally, the front end face of described matrix is additionally provided with a third groove, and it is recessed that all second oil grooves are located at third
The periphery of slot is simultaneously connected to third groove；
Expose the axially extending bore in the bottom of the third groove.
Optionally, the axially extending bore is exposed in the bottom of second groove.
Optionally, the axially extending bore is exposed in the bottom of second oil groove.
Optionally, the rear end face of described matrix is additionally provided with：
The 5th groove between first groove and all first oil grooves, the 5th groove and all institutes
State the connection of the first oil groove；
The 4th groove between first groove and the 5th groove, the 4th groove are recessed with described first respectively
Slot, the connection of the 5th groove.
Optionally, second groove is between the first groove and the 5th groove；
The quantity of second groove is one, alternatively, the quantity of second groove is equal with the quantity of the second oil groove.
Optionally, first oil groove runs through the cell wall of the first groove.
Optionally, the quantity of second groove is one；
Alternatively, the quantity of second groove is equal with the quantity of the second oil groove, all first oil grooves and second recessed
Slot is staggered.
On the basis of above-mentioned rotor, the present invention also provides a kind of camshaft phase adjusters, including：
Any of the above-described rotor；
Stator, have it is multiple it is circumferentially spaced arrangement and radially inwardly extending boss, the two neighboring boss it
Between be formed with hydraulic pressure chamber, the rotor is rotatably disposed in stator, and the blade is located in hydraulic pressure chamber and separates hydraulic pressure chamber
For first pressure room and second pressure room, first oil groove is connected to first pressure room, second oil groove and second pressure
Room is connected to.
On the basis of above-mentioned camshaft phase adjuster, the present invention also provides a kind of variable cam timing system, packets
It includes：
Above-mentioned camshaft phase adjuster；
The camshaft being torsionally connected with the camshaft phase adjuster, the camshaft, which has, is contained in the rotor
The first groove in end and the first oil duct communicated respectively with the first oil groove of the rotor and the second oil groove and second oil
Road；And
Solenoid valve, there are two the channels communicated respectively with first oil duct, the second oil duct for the solenoid valve tool.
Compared with prior art, technical scheme of the present invention has the following advantages：
The first oil groove as the one of oil duct of rotor is arranged in matrix rear end face, as rotor another oil duct
Two oil grooves and the second groove are separately positioned on matrix front end face, rear end face, and therefore, two oil ducts of rotor are exposed to matrix
Outside, the inner space that can occupy rotor less, reduces the axial dimension of rotor；In addition, the first oil groove, the second oil groove, second recessed
Slot and axially extending bore can be integrally formed with the matrix of rotor, formed without recycling bore process, can not only be simplified
The manufacturing process of rotor, the manufacturing cost for reducing rotor, and help to reduce the axial dimension of rotor.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of existing camshaft phase adjuster；
Fig. 2 is the left view of rotor in camshaft phase adjuster shown in Fig. 1；
Fig. 3 is the sectional view of the line A-A along Fig. 2；
Fig. 4 is the sectional view of the line B-B along Fig. 2；
Fig. 5 is the stereogram exploded view of variable cam timing system in the embodiment of the present invention；
Fig. 6 is the schematic diagram of variable cam timing system in the embodiment of the present invention；
Fig. 7 is the rotor stereogram looked over from rotor rear end face in the first embodiment of the present invention；
Fig. 8 is the rotor stereogram looked over from rotor front end face in the first embodiment of the present invention；
Fig. 9 is the rearview of camshaft phase adjuster in the embodiment of the present invention；
Figure 10 is the front view of camshaft phase adjuster in the embodiment of the present invention；
Figure 11 is the stereogram of camshaft in the first embodiment of the present invention；
Figure 12 is the front view of camshaft shown in Figure 11；
Figure 13 is the sectional view of the line C-C along Figure 12；
Figure 14 is the rotor front view looked over from rotor rear end face in the second embodiment of the present invention.
Specific implementation mode
Explanation of technical terms：
A and B is slot or hole, and A is connected to B and refers to：The opening of A is directly docked with the opening of B.
A and B is slot or hole, and A is communicated with B and referred to：The opening of A is directly docked with the opening of B；Alternatively, the opening and B of A
Opening do not dock directly, between the two have other slots or hole.
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
First embodiment
As shown in Figure 5 and Figure 6, variable cam timing system provided by the present invention includes：Camshaft phase adjuster, should
Camshaft phase adjuster includes rotor 100 and stator 200, and the rear end face S1 of rotor 100 is equipped with for accommodating camshaft mandrel end
The first groove 111；The camshaft 700 being torsionally connected with camshaft phase adjuster, camshaft 700, which has, is contained in rotor
End in 100 the first groove 111.
In the present embodiment, camshaft phase adjuster further includes：Front shroud 300 and back shroud 400, front shroud 300, after
Cover board 400 is separately fixed at the front and rear sides of stator 200.In a particular embodiment, using multiple bolts 500 by front shroud
300, back shroud 400 and stator 200 are fixed together.Front shroud 300 is contacted with the front end face of rotor 100, back shroud 400 with turn
The rear end face contact of son 100.
In the present embodiment, as shown in fig. 6, camshaft 700 further includes the axis hole that opening is located on cam axial end S4
710, axis hole 710 is threaded hole, and camshaft phase adjuster is fixed on camshaft 700 using bolt 600.That is, bolt 600
Successively pass through front shroud 300, rotor 100, the axis hole 710 of camshaft 700 and back shroud 400, the spiral shell of bolt 600 and axis hole 710
Line is interlocked, and then camshaft phase adjuster is fixed on camshaft mandrel end.
As shown in fig. 7, the rotor 100 in camshaft phase adjuster includes：It matrix 10 and multiple is fixed on matrix 10
Blade 20, multiple blades 20 along rotor 100 circumferentially-spaced arrangement and extend radially outward.Matrix 10 has rear end face
The rear end face S1 of S1, matrix 10 are equipped with the first groove 111,112 and second groove 113 of multiple first oil grooves.Wherein, the first groove
111 for accommodating camshaft mandrel end；Multiple first oil grooves 112 be located at the periphery of the first groove 111 and with 111 phase of the first groove
It is logical, and the first oil groove 112 runs through the side wall S3 of matrix 10 radially.
In the present embodiment, the rear end face S1 of matrix 10 is additionally provided with the 4th groove 114 and the 5th groove 115.
Wherein, the 5th groove 115 is between the first groove 111 and all first oil grooves 112, the 5th groove 115 and all first oil
Slot 112 is connected to；For 4th groove 114 between the first groove 111 and the 5th groove 115, the 4th groove 114 is not only recessed with first
Slot 111 is connected to, and is also connected to the 5th groove 115.Therefore, in the present embodiment, all first oil grooves 112 are by the 5th groove
115 and the 4th groove 114 communicated with the first groove 111.
In a particular embodiment, the 5th groove 115 is annular groove.In other embodiments, the 5th groove 115 can also be set
Other shapes are set to, as long as the 5th groove 115 can be made to be connected to all first oil grooves 112.
In the present embodiment, the quantity of second groove 113 is one on matrix 10, and the second groove 113 is located at the first groove
111 and the 5th between groove 115, and the second groove 113 and the 4th groove 114 are alternatively arranged.
As shown in figure 8, there is matrix 10 front end face S2, the front end face S2 of matrix 10 to be equipped with multiple second oil grooves 121, second
Oil groove 121 runs through the side wall S3 of matrix 10 radially.As shown in fig. 9 or 10, the second oil groove 121, the first oil groove 112 difference
Positioned at the both sides of blade 20, and 121 and first oil groove 112 of all second oil grooves is along the circumferentially staggered arrangement of rotor 100.
In conjunction with shown in Fig. 7, axially extending bore 130, axially extending bore 130 are equipped between the rear end face S1 and front end face S2 of matrix 10
It not only communicates with the second groove 113, is also communicated with the second oil groove 121.In the present embodiment, the bottom of the second groove 113 is exposed
Axially extending bore 130 so that the second groove 113 is connected to axially extending bore 130.
Shown in Fig. 8, in the present embodiment, the front end face S2 of matrix 10 is additionally provided with a third groove 122, the
Expose axially extending bore 130 in the bottom of three grooves 122 so that third groove 122 is connected to axially extending bore 130.All second oil grooves
121 are located at the periphery of third groove 122, and all second oil grooves 121 are connected to third groove 122.Therefore, in the present embodiment
In, the second oil groove 121 is to be communicated with axially extending bore 130 by third groove 122, and then communicated with the second groove 113.
In a particular embodiment, third groove 122 is in the annular of non-close.In other embodiments, third groove 122
Other shapes are can be set to, as long as third groove 122 can be made to be connected to all second oil grooves 121.
In a particular embodiment, blade 20 is integrally formed with matrix 10.In other embodiments, blade 20 can also intercalation
The mode entered is fixed on matrix 10.
In a particular embodiment, the first groove 111 is circular groove.In other embodiments, the first groove 111 can also be set
It is set to other shapes.
The quantity of first oil groove 112 and the second oil groove 121 is equal with the quantity of blade 20.In a particular embodiment, first
The quantity of oil groove 112, the second oil groove 121 and blade 20 is five.
In a particular embodiment, the shape of the first oil groove 112 and the second oil groove 121 is rectangle.In other embodiments,
One oil groove 112 and the second oil groove 121 can be configured as other shapes.
As shown in fig. 9 or 10, the stator 200 of camshaft phase adjuster has multiple circumferentially spaced arrangements and edge
The boss 210 extended radially inwardly is formed with hydraulic pressure chamber between two neighboring boss 210, and rotor 100 is rotatably disposed in stator
In 200, blade 20 is located in hydraulic pressure chamber and hydraulic pressure chamber is divided into first pressure room 221 and second pressure room 222, rotor 100
The first oil groove 112 communicated with first pressure room 221, the second oil groove 121 of rotor 100 is communicated with second pressure room 222.
In the present embodiment, in conjunction with shown in Figure 11 to Figure 13, camshaft 700 further includes：The first of axially spaced arrangement
Annular oil groove 720 and the second annular oil groove 730, and 720 to the second annular oil groove 730 of first annular oil groove is closer to cam shaft end
Face S4；First opening of the first oil duct 740 positioned at 710 periphery of axis hole, the first oil duct 740 is connected to first annular oil groove 720
（I.e. the first oil duct 740 is exposed in the bottom of first annular oil groove 720）, second opening positioned at camshaft mandrel end side S5 on；Position
First opening of the second oil duct 750 in 710 periphery of axis hole, the second oil duct 750 is connected to the second annular oil groove 730（I.e. second
Expose the second oil duct 750 in the bottom of annular oil groove 730）, second opening positioned at camshaft mandrel end side S5 on.
In first oil duct 740, the second oil duct 750, one for communicated with the first oil groove of rotor, another be used for and turn
Second oil groove of son communicates, and the quantity of the oil duct communicated for the first oil groove with rotor is at least one, is used for and rotor
The quantity for the oil duct that second oil groove communicates is equal with the quantity of the second groove of rotor.
In the present embodiment, with reference to shown in Fig. 6, the first oil duct 740 is communicated with the first oil groove 112 of rotor 100, the second oil
Road 750 is communicated with the second oil groove 121 of rotor 100, and the quantity of the first oil duct 740 and the second oil duct 750 is one.
Second opening of the first oil duct 740 and the second opening of the second oil duct 750 are located at the same circumference of camshaft 700
On, in other words, the second opening of the first oil duct 740 and the second opening of the second oil duct 750 are between cam shaft is not present upwards
Every in conjunction with shown in Fig. 6 and Fig. 7 so that when camshaft mandrel end is accommodated in the first groove 111 of rotor 100, the first oil duct
740 second opening and the second oil duct 750 second opening can respectively with the second groove positioned at 100 rear end face S1 of rotor
113, the 4th groove 114 is connected to.
In the present embodiment, the second opening of the first oil duct 740 and the second opening of the second oil duct 750 are also located at camshaft
On the S4 of end face so that the first oil duct 740 and the second oil duct 750 run through camshaft mandrel end.In other embodiments, the first oil duct
740 the second opening and the second opening of the second oil duct 750 can not also be located on cam axial end S4, as long as ensureing the first oil
Interval is not present in cam shaft in second opening in road 740 and the second opening of the second oil duct 750 upwards.
With reference to shown in figure 13, in the present embodiment, the first oil duct 740 includes the first seed oil road 741, third seed oil road 743
And the second seed oil road 742 between the first seed oil road 741 and third seed oil road 743.Wherein, the first seed oil road 741 is along diameter
To extending internally and be connected to first annular oil groove 720；Second seed oil road 742 extends to cam axial end S4 in an axial direction, and the
Two seed oil roads 742 are connected to the first seed oil road 741；Third seed oil road 743 extend radially outward and with the second seed oil road 742
Connection, and the opening far from the second seed oil road 742 in third seed oil road 743 is on the side S5 of camshaft mandrel end.
In the present embodiment, the second oil duct 750 including the 4th seed oil road 751, the 6th seed oil road 753 and is located at the 4th seed oil
The 5th seed oil road 752 between road 751 and the 6th seed oil road 753.Wherein, the 4th seed oil road 751 it is radially inwardly extending and with
Second annular oil groove 730 is connected to；5th seed oil road 752 extends to cam axial end S4 in an axial direction, and the 5th seed oil road 752 and the
Four seed oil roads 751 are connected to；6th seed oil road 753 is extended radially outward and is connected to the 5th seed oil road 752, and the 6th seed oil
Opening of the road 753 far from the 5th seed oil road 752 is on the side S5 of camshaft mandrel end.
Shown in Fig. 6, variable cam timing system provided by the present invention further includes：Solenoid valve 800.Solenoid valve
There are two channels for 800 tools, and two channels are communicated with the first oil duct of camshaft, the second oil duct respectively.
In the present embodiment, channel there are four the tools of solenoid valve 800, respectively channel P, channel T, channel A and channel B,
In, channel A is connected to the second annular oil groove 730 of camshaft 700 so that channel A is communicated with the second oil duct 750, channel B connections
To the first annular oil groove 720 of camshaft 700 so that channel B is communicated with the first oil duct 740.In other embodiments, can also
It is the second annular oil groove 730 that channel B is connected to camshaft 700, channel A is connected to the first annular oil groove of camshaft 700
720.When the camshaft phase adjuster is applied in internal combustion engine, channel P is connected to lubricating oil pump（It does not identify）, channel T connections
To machine oil circuit（It does not identify）.
In the present embodiment, the operation principle of variable cam timing system is as follows：
Control unit of engine（It is not shown）Drive magnetic valve 800 makes the control piston motion of solenoid valve 800 to first
It sets (a), at first position (a), the channel P of solenoid valve 800 is communicated with channel B, and channel A is logical with channel T-phase, so,
Engine motor oil under pressure state is flowed into according to direction shown in arrow A in Fig. 6 in first pressure room 221, and is driven
Rotor 100 is rotated relative to stator 200；At the same time, the no pressure engine motor oil in second pressure room 222 is according in Fig. 6
Direction shown in arrow D is extruded into machine oil circuit, so that valve is opened or postpones to open in advance.
Specifically, the flow path for being in the engine motor oil under pressure state is as follows：As shown in the arrow A in Fig. 6, hair
Motivation machine oil flows in the first annular oil groove 720 of camshaft 700, then successively flows to the first seed oil road of the first oil duct 740
741, the second seed oil road 742, third seed oil road 743, since camshaft mandrel end is accommodated in the first groove 111 of rotor 100,
The opening far from the second seed oil road 742 in third seed oil road 743（Second opening of as the first oil duct 740）Positioned at cam shaft end
The side S5 in portion（In conjunction with shown in Figure 11）On, and it is to be connected to that the first groove 111, which is with the 4th groove 114, and therefore, the first oil duct
740 communicate with the 4th groove 114, thus the engine motor oil for flowing through the first oil duct 740 can flow to rotor 100 it is the 4th recessed
Slot 114；Then, in conjunction with shown in Fig. 9 or Figure 10, the engine motor oil in the 4th groove 114 successively flows to the 5th groove 115, institute
There is the first oil groove 112, and finally flows into first pressure room 221.
Specifically, the flow path of no pressure engine motor oil is as follows：Such as the arrow D in Fig. 6, and combine Fig. 9 or Figure 10
Shown, the engine motor oil in second pressure room 222 flows to the second oil groove 121；Then, it is recessed successively to flow to third for engine motor oil
Slot 122, axially extending bore 130, the second groove 113, since camshaft mandrel end is accommodated in the first groove 111 of rotor 100, and
Side S5 of second opening of the second oil duct 750 of camshaft 700 positioned at camshaft mandrel end（In conjunction with shown in Figure 11）On, and first
It is to be connected to that groove 111, which is with the second groove 113, and therefore, the second oil duct 750 is communicated with the second groove 113, therefore flows through
The engine motor oil of two grooves 113 can successively flow to the 6th seed oil road 753 of the second oil duct 750, the 5th seed oil road 752,
Four seed oil roads 751；Then, engine motor oil flows out the second annular oil groove 730, and flows to oil sump from solenoid valve 800（Do not scheme
Show）.
Control unit of engine（It is not shown）Drive magnetic valve 800 makes the control piston motion of solenoid valve 800 to second
It sets (b), at the second position (b), the channel P of solenoid valve 800 is communicated with channel A, and channel B is logical with channel T-phase, so,
Engine motor oil under pressure state is flowed into according to direction shown in arrow B in Fig. 6 in second pressure room 222, and is driven
Rotor 100 is rotated relative to stator 200；At the same time, the no pressure engine motor oil in first pressure room 221 is according in Fig. 6
Direction shown in arrow C is extruded into machine oil circuit, so that valve is delayed by opening or opens in advance.
Specifically, the flow path for being in the engine motor oil under pressure state is as follows：As shown in the arrow B in Fig. 6, hair
Motivation machine oil flows in the second annular oil groove 730 of camshaft 700, then successively flows to the 4th seed oil road of the second oil duct 750
751, the 5th seed oil road 752, the 6th seed oil road 753；Then, rotor can be flowed to by flowing through the engine motor oil of the second oil duct 750
100 the second groove 113；Then, in conjunction with shown in Fig. 9 or Figure 10, the engine motor oil in the second groove 113 successively flows to axial
Through-hole 130, third groove 122, all second oil grooves 121, and finally flow into second pressure room 222.
Specifically, the flow path for being in the engine motor oil under pressure-less state is as follows：Such as the arrow C in Fig. 6, and tie
It closes shown in Fig. 9 or Figure 10, the engine motor oil in first pressure room 221 flows to the first oil groove 112；Then, engine motor oil is first
After flow to the 5th groove 115, the 4th groove 114；Then, can successively be flowed to by flowing through the engine motor oil of the 4th groove 114
Third seed oil road 743, the second seed oil road 742, the first seed oil road 741 of one oil duct 740；Then, engine motor oil outflow first
Annular oil groove 720, and flow to oil sump from solenoid valve 800（It is not shown）.
When the non-drive magnetic valve 800 of control unit of engine, solenoid valve 800 is failure to actuate, and the at this moment control of solenoid valve 800 is lived
Plug moves to the third place（c）, in the third place（When c), channel P, channel A, channel B, the channel T of solenoid valve 800 are each other
It is not communicated with, the position of camshaft 700 remains unchanged.
It can be seen from the above, when applying the rotor of first embodiment of the invention in camshaft phase adjuster, in cam
Under a kind of working condition of axis phase regulator, as shown in figure 9, engine motor oil can pass through the 4th groove 114, the 5th groove
115 flow to the first oil groove 112, then flow into first pressure room 221, and rotor 100 is driven to be made clockwise relative to stator 200
Rotation；At the same time, the engine motor oil in second pressure room 222 is successively via the second oil groove 121, third groove 122, axial direction
Through-hole 130, the second groove 113 are extruded away, so that valve lead or delay are opened.
Under another working condition of camshaft phase adjuster, in conjunction with shown in Fig. 9 and Figure 10, engine motor oil can be with
The second oil groove 121 is flowed to by the second groove 113, axially extending bore 130, third groove 122, then flows into second pressure room 222
It is interior, and rotor 100 is driven to be rotated clockwise relative to stator 200；At the same time, the engine machine in first pressure room 221
It is oily to be successively extruded away via the first oil groove 112, the 5th groove 115, the 4th groove 114, so that valve delay is opened or is carried
Front opening.
In order to enable can there is more engine motor oil to flow to third groove 122, axis from the second groove 113 in the same time
It is two or more to the quantity of through-hole 130.In the present embodiment, the quantity of axially extending bore 130 is five, and axially extending bore 130
For circular through hole.
Second embodiment
In a second embodiment, as shown in figure 14, the first oil groove 112 of rotor 100 runs through the cell wall of the first groove 111
（It does not identify）So that the first oil groove 112 is directly communicated with the first groove 111；The quantity of second groove 113 and the second oil groove 121
Quantity it is equal, 112 and second groove 113 of all first oil grooves is staggered, 113 and second oil groove 121 of each second groove
Bottom be exposed independent from axially extending bore 130 so that each second oil groove 121 passes through axially extending bore 130 and second groove 113
It communicates.
When applying the rotor of second embodiment of the invention in camshaft phase adjuster, in camshaft phase adjuster
A kind of working condition under, shown in Figure 14, engine motor oil can flow directly into the first oil groove 112, then flow into
First pressure room（It is not shown）It is interior, and rotor 100 is driven to be rotated clockwise relative to stator 200；At the same time, second pressure
Room（It is not shown）Interior engine motor oil is successively squeezed out via the second oil groove 121, axially extending bore 130, the second groove 113
It goes, so that valve lead or delay are opened.
Under another working condition of camshaft phase adjuster, shown in Figure 14, engine motor oil can be with
The second oil groove 121 is flowed to by the second groove 113, axially extending bore 130, is then flowed into second pressure room, and drive rotor 100
It is rotated counterclockwise relative to stator 200；At the same time, the indoor engine motor oil of first pressure flows directly into the first oil groove
It 112 and is extruded away, so that valve delay is opened or opened in advance.
In this case, in order to enable the camshaft of first embodiment can be with the rotor with second embodiment
Camshaft phase adjuster is used cooperatively, and the present invention makes improvements the camshaft of first embodiment, and obtains the second implementation
The camshaft of example.
The camshaft of second embodiment, between the camshaft of first embodiment difference lies in：First oil on camshaft
The quantity in road, it is equal with the quantity of the first oil groove on rotor, it is multiple；In addition, on camshaft the second oil duct quantity, with turn
The quantity of upper second groove of son is equal, is also multiple, and all first oil ducts and the second oil duct are along the circumferentially staggered of camshaft
Arrangement.To include the camshaft phase adjuster of the rotor of second embodiment, when being fixed on the camshaft of second embodiment,
So that the first oil groove is connected to first oil duct, each of on rotor the second groove with one second oil
Road is connected to.
3rd embodiment
Following improvement can also be made to the rotor of first embodiment, to obtain the rotor of 3rd embodiment（It is not shown）.
The rotor of 3rd embodiment, between the rotor of first embodiment difference lies in：The first oil groove of rotor is through the first groove
Cell wall so that the first oil groove is directly communicated with the first groove；The quantity of second groove is one, the second groove and all first oil
Slot is alternatively arranged, and the front end face of matrix is additionally provided with a third groove, and the bottom of third groove and the second groove is exposed independent from axial direction
Through-hole, all second oil grooves are located at the periphery of third groove and are connected to third groove, and the second oil groove passes through third groove and axis
It is communicated to through-hole.
In this case, in order to enable the camshaft of first embodiment can be with the rotor with 3rd embodiment
Camshaft phase adjuster is used cooperatively, and the present invention makes improvements the camshaft of first embodiment, and obtains third implementation
The camshaft of example.
The camshaft of 3rd embodiment, between the camshaft of first embodiment difference lies in：First oil on camshaft
The quantity in road, it is equal with the quantity of the first oil groove on rotor, it is multiple, the quantity phase of the quantity of the second oil duct and the second groove
Deng, as one, and the second oil duct is between two neighboring first oil duct, the second oil duct and multiple first oil ducts circumferentially between
Every arrangement.It will include the camshaft phase adjuster of the rotor of 3rd embodiment, be fixed on the camshaft of 3rd embodiment
When, so that the first oil groove is connected to first oil duct, and the second groove and the second oil duct on rotor connect
It is logical.
Fourth embodiment
Following improvement can also be made to the rotor of first embodiment, to obtain the rotor of fourth embodiment（It is not shown）.
The rotor of fourth embodiment, between the rotor of first embodiment difference lies in：The quantity of second groove and the second oil groove
Quantity is equal, as multiple, and all second grooves are between the first groove and the 5th groove, and the 4th groove and all second
Groove is alternatively arranged, and the bottom of each second groove and the second oil groove is exposed independent from axially extending bore.
In this case, in order to enable the camshaft of first embodiment can be with the rotor with fourth embodiment
Camshaft phase adjuster is used cooperatively, and the present invention makes improvements the camshaft of first embodiment, and obtains the 4th implementation
The camshaft of example.
The camshaft of fourth embodiment, between the camshaft of first embodiment difference lies in：Second oil on camshaft
The quantity in road, it is equal with the quantity of the second groove on rotor, it is multiple, the quantity phase of the quantity of the first oil duct and the 4th groove
Deng, as one, and the first oil duct is between two neighboring second oil duct, the first oil duct and multiple second oil ducts circumferentially between
Every arrangement.It will include the camshaft phase adjuster of the rotor of fourth embodiment, be fixed on the camshaft of fourth embodiment
When, each of make on rotor that the second groove is connected to second oil duct, the 4th groove on rotor is connected to the first oil duct.
In four embodiments of above-mentioned camshaft, the number of the second oil duct communicated with the second oil groove of rotor on camshaft
Amount, it is always equal with the quantity of the second groove on rotor, still, the first oil duct communicated with the first oil groove of rotor on camshaft
Quantity, need to be how the specific technical solution communicated with the first groove is determined according to the first oil groove on rotor：When rotor
When rear end face is equipped with the 4th groove and five grooves, the quantity of the first oil duct is equal with the quantity of the 4th groove；When the first oil groove
When through the cell wall of the first groove, the quantity of the first oil duct is equal with the quantity of the first oil groove.
It should be noted that in the above-described embodiments, the first oil duct of camshaft is communicated with the first oil groove of rotor, cam
Second oil duct of axis is communicated with the second oil groove of rotor.In other embodiments, can also be camshaft the first oil duct with
Second oil groove of rotor communicates, and the second oil duct of camshaft is communicated with the first oil groove of rotor.In this case, on camshaft
The quantity of first oil duct, always equal with the quantity of the second groove on rotor, still, the quantity of the second oil duct on camshaft needs
It is how the specific technical solution communicated with the first groove determines according to the first oil groove on rotor：When the rear end face of rotor is equipped with
When the 4th groove and five grooves, the quantity of the second oil duct is equal with the quantity of the 4th groove；When the first oil groove is recessed through first
When the cell wall of slot, the quantity of the second oil duct is equal with the quantity of the first oil groove.
In addition, it should be noted that, the structure of rotor provided by the present invention can not be limited only to given embodiment, ability
Field technique personnel can make other adjustment or change under introduction to embodiment, as long as so that, be arranged in matrix rear end
The second oil groove that the first oil groove on face can communicate with the first groove, be arranged on matrix front end face can pass through axially extending bore
It is communicated with the second groove.
In addition, the structure of camshaft can not be limited only to real in variable cam timing system provided by the present invention
Apply example, those skilled in the art can make other adjustment or change under introduction to embodiment, as long as so that, camshaft
On the first oil duct, the second oil duct can communicate with the first oil groove of rotor, the second oil groove respectively.
As the above analysis, with reference to shown in Fig. 9 or Figure 10, in the camshaft phase for including rotor 100 provided by the present invention
In the adjuster of position, engine motor oil can be flowed into via the first oil groove 112 in first pressure room 221, and drive rotor 100 opposite
It is rotated in stator 200, at the same time, the engine motor oil in second pressure room 222 successively leads to via the second oil groove 121, axially
Hole 130, the second groove 113 are extruded away, so that valve lead or delay are opened；Alternatively, engine motor oil can be first
By by the second groove 113, axially extending bore 130, the second oil groove 121, flow into second pressure room 222, and drive 100 phase of rotor
Stator 200 is rotated, at the same time, the engine motor oil in first pressure room 221 flows directly into the first oil groove 112 and is squeezed
Extrusion is gone, so that valve delay is opened or opened in advance.
Therefore, the first oil groove 112 can be used as engine motor oil to flow into first pressure room 221 or from first pressure room 221
One oil duct of outflow, the second oil groove 121, axially extending bore 130 and the second groove 113 can be used as engine motor oil to flow into second
Balancing gate pit 222 or another oil duct flowed out from second pressure room 222.First oil groove 112, the second oil groove 121 and the second groove
113 are exposed to outside rotor 100；And compare shown in Fig. 1 to Fig. 4, two oil ducts of existing rotor are respectively positioned on the inside of matrix, and
Axially spaced-apart along rotor arranges, therefore the present invention can occupy the inner space of rotor 100 less, reduce the axial direction of rotor 100
Size；In addition, the first oil groove 112, the second oil groove 121, the second groove 113 and axially extending bore 130 can be with the matrixes of rotor 100
10 are integrally formed, and are formed without recycling bore process, can not only simplify the manufacturing process of rotor 100, reduce rotor
100 manufacturing cost, moreover, no longer needing to increase the axial dimension of rotor 100 for the needs of bore process to increase rotor
Mechanical strength, thus help to reduce the axial dimension of rotor 100.
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of rotor of camshaft phase adjuster, including：
Matrix, described matrix have front end face and rear end face；
Multiple blades being fixed on matrix, multiple blades are circumferentially spaced to be arranged and extends radially outward；
It is characterized in that, the rear end face of described matrix is equipped with：The first groove for accommodating camshaft mandrel end；It is multiple be located at it is described
First groove periphery and the first oil groove communicated with the first groove, and first oil groove runs through the side wall of matrix radially；
The second groove communicated positioned at first groove periphery and with the first groove；
The front end face of described matrix is equipped with：Multiple the second oil grooves for running through base side walls radially, second oil groove, first
Oil groove is located at the both sides of blade, and all second oil grooves and the first oil groove are circumferentially staggered；
Axially extending bore, the axially extending bore and the second groove and the second oil groove are equipped between the rear end face and front end face of described matrix
It communicates.
2. the rotor of camshaft phase adjuster according to claim 1, which is characterized in that the front end face of described matrix is also
If there are one third groove, all second oil grooves are located at the periphery of third groove and are connected to third groove；
Expose the axially extending bore in the bottom of the third groove.
3. the rotor of camshaft phase adjuster according to claim 2, which is characterized in that the bottom of second groove
Expose the axially extending bore.
4. the rotor of camshaft phase adjuster according to claim 1, which is characterized in that the bottom of second oil groove
Expose the axially extending bore.
5. the rotor of camshaft phase adjuster according to any one of claims 1 to 4, which is characterized in that described matrix
Rear end face be additionally provided with：
The 5th groove between first groove and all first oil grooves, the 5th groove and all described the
One oil groove is connected to；
The 4th groove between first groove and the 5th groove, the 4th groove respectively with first groove,
5th groove is connected to.
6. the rotor of camshaft phase adjuster according to claim 5, which is characterized in that second groove is located at the
Between one groove and the 5th groove；
The quantity of second groove is one, alternatively, the quantity of second groove is equal with the quantity of the second oil groove.
7. the rotor of camshaft phase adjuster according to any one of claims 1 to 4, which is characterized in that described first
Oil groove runs through the cell wall of the first groove.
8. the rotor of camshaft phase adjuster according to claim 7, which is characterized in that the quantity of second groove
It is one；
Alternatively, the quantity of second groove is equal with the quantity of the second oil groove, all first oil grooves and the second groove are handed over
Mistake arrangement.
9. a kind of camshaft phase adjuster, which is characterized in that including：
Claim 1 to 8 any one of them rotor；
Stator has multiple circumferentially spaced arrangements and radially inwardly extending boss, shape between the two neighboring boss
At having hydraulic pressure chamber, the rotor to be rotatably disposed in stator, the blade is located in hydraulic pressure chamber and hydraulic pressure chamber is divided into the
One balancing gate pit and second pressure room, first oil groove are connected to first pressure room, and second oil groove connects with second pressure room
It is logical.
10. a kind of variable cam timing system, which is characterized in that including：
Camshaft phase adjuster described in claim 9；
The camshaft being torsionally connected with the camshaft phase adjuster, the camshaft have be contained in the rotor the
End in one groove and the first oil duct and the second oil duct communicated respectively with the first oil groove of the rotor and the second oil groove；And
Solenoid valve, there are two the channels communicated respectively with first oil duct, the second oil duct for the solenoid valve tool.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199403.9A CN104179542B (en) | 2013-05-24 | 2013-05-24 | Camshaft phase adjuster and its rotor and variable cam timing system |
| DE102014209785.1A DE102014209785B4 (en) | 2013-05-24 | 2014-05-22 | Camshaft phasing device and its rotor, and a variable camshaft timing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199403.9A CN104179542B (en) | 2013-05-24 | 2013-05-24 | Camshaft phase adjuster and its rotor and variable cam timing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104179542A CN104179542A (en) | 2014-12-03 |
| CN104179542B true CN104179542B (en) | 2018-08-21 |
Family
ID=51863398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310199403.9A Expired - Fee Related CN104179542B (en) | 2013-05-24 | 2013-05-24 | Camshaft phase adjuster and its rotor and variable cam timing system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104179542B (en) |
| DE (1) | DE102014209785B4 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220049633A1 (en) * | 2018-08-22 | 2022-02-17 | Schaeffler Technologies AG & Co. KG | Rotor for Camshaft Phaser and Camshaft Phaser |
| WO2023019599A1 (en) * | 2021-08-20 | 2023-02-23 | 舍弗勒技术股份两合公司 | Camshaft phase regulator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769183A (en) * | 2010-01-18 | 2010-07-07 | 上海交通大学 | Variable valve timing-phase controller |
| CN101900005A (en) * | 2010-06-29 | 2010-12-01 | 绵阳富临精工机械有限公司 | Smart camshaft phase regulator of variable valve timing system of engine |
| CN101900004A (en) * | 2009-05-25 | 2010-12-01 | 爱信精机株式会社 | Ventilsteuerzeitsteuervorrichtung |
| CN201786408U (en) * | 2010-08-19 | 2011-04-06 | 芜湖杰锋汽车动力系统有限公司 | Variable valve timing air-distributing adjusting device |
| CN102022155A (en) * | 2009-09-18 | 2011-04-20 | 谢夫勒科技有限两合公司 | Device for changing relative angular position of camshaft relative to crankshaft of internal-combustion engine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2302391B (en) | 1995-06-14 | 1999-08-18 | Nippon Denso Co | Control apparatus for varying the rotational or angular phase between two rotational shafts |
| JP3077621B2 (en) * | 1996-04-09 | 2000-08-14 | トヨタ自動車株式会社 | Variable valve timing mechanism for internal combustion engine |
| JP3191730B2 (en) * | 1997-07-17 | 2001-07-23 | 三菱電機株式会社 | Hydraulic valve timing adjustment device |
| JP3871478B2 (en) * | 1999-10-14 | 2007-01-24 | 株式会社日立製作所 | Valve timing changing device for internal combustion engine |
| DE102008050134B4 (en) | 2008-10-04 | 2017-06-29 | Schaeffler Technologies AG & Co. KG | Camshaft adjustment device for an internal combustion engine |
| DE102012208496B4 (en) * | 2012-05-22 | 2013-12-05 | Schaeffler Technologies AG & Co. KG | Camshaft adjustment device |
-
2013
- 2013-05-24 CN CN201310199403.9A patent/CN104179542B/en not_active Expired - Fee Related
-
2014
- 2014-05-22 DE DE102014209785.1A patent/DE102014209785B4/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900004A (en) * | 2009-05-25 | 2010-12-01 | 爱信精机株式会社 | Ventilsteuerzeitsteuervorrichtung |
| CN102022155A (en) * | 2009-09-18 | 2011-04-20 | 谢夫勒科技有限两合公司 | Device for changing relative angular position of camshaft relative to crankshaft of internal-combustion engine |
| CN101769183A (en) * | 2010-01-18 | 2010-07-07 | 上海交通大学 | Variable valve timing-phase controller |
| CN101900005A (en) * | 2010-06-29 | 2010-12-01 | 绵阳富临精工机械有限公司 | Smart camshaft phase regulator of variable valve timing system of engine |
| CN201786408U (en) * | 2010-08-19 | 2011-04-06 | 芜湖杰锋汽车动力系统有限公司 | Variable valve timing air-distributing adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014209785B4 (en) | 2020-07-16 |
| CN104179542A (en) | 2014-12-03 |
| DE102014209785A1 (en) | 2014-11-27 |
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