CN104712387B - Variable valve timing mechanism with middle locking function - Google Patents
Variable valve timing mechanism with middle locking function Download PDFInfo
- Publication number
- CN104712387B CN104712387B CN201510040630.6A CN201510040630A CN104712387B CN 104712387 B CN104712387 B CN 104712387B CN 201510040630 A CN201510040630 A CN 201510040630A CN 104712387 B CN104712387 B CN 104712387B
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- Prior art keywords
- adjustable
- rotor
- chute
- stator
- slide rail
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Classifications
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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
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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 relates to an engine component, in particular to a variable valve timing mechanism with the middle locking function. The variable valve timing mechanism with the middle locking function comprises a chain wheel, a stator and a rotor are coaxially arranged in the chain wheel, the rotor is located in the stator, four adjustable containing cavities are formed in the inner wall of the stator, four adjustable rotating arms are arranged on the outer wall of the rotor, the four adjustable rotating arms are located in the four adjustable containing cavities respectively, the rotor is provided with a radial oil path, and the rotor is provided with a locking mechanism. The variable valve timing mechanism has the advantages that timing of a valve can be adjusted and changed in two directions, the air inlet and outlet amount coordination and circulation coordination of an engine can be effectively improved, and the combustion efficiency can be improved.
Description
Technical field
The present invention relates to a kind of engine component, especially relate to a kind of VVT machine with middle latch functions
Structure.
Background technology
The port timing mechanism of electromotor is responsible for providing fresh air necessary to gasoline combustion acting to cylinder, and will fire
Waste gas after burning is discharged.The major function of port timing mechanism be according to certain time limit open and close the entering of each cylinder,
Exhaust valve, thus realize the whole process of cylinder ventilation supply.Valve stroke is just as the angle opened, valve timing
As the time opened, the inlet and outlet amount within the unit interval is determined by valve stroke and valve timing.Existing valve is just
When mechanism port timing be definite value it is impossible to by timing mechanism change port timing, lead to electromotor inlet and outlet work do not assist
Adjust, circulation is inharmonious, and efficiency of combustion is low.
Content of the invention
The present invention is primarily directed to the problems referred to above, provides one kind two-ways regulation can to change valve timing, effectively improve
Engine breathing amount is coordinated, circulation is coordinated, improve the VVT gear with middle latch functions of efficiency of combustion.
The purpose of the present invention is mainly achieved by following proposal: a kind of changeable air valve with middle latch functions
Timing mechanism, including sprocket wheel, is coaxially arranged with stator and rotor inside sprocket wheel, rotor is located in stator, and stator inner wall is provided with
Four adjustable containing cavities, rotor outer wall is provided with four adjustable pivoted arms, and four adjustable pivoted arms are located at four adjustable containing cavities respectively
Interior, rotor is provided with the oil circuit of radial direction, rotor is provided with lockable mechanism.Setting stator and rotor, stator inside sprocket wheel
It is connected in sprocket wheel with rotor coaxial, stator and rotor can relatively rotate.On stator inner wall, four adjustable containing cavities are set, turn
Sub- outer wall arranges four adjustable pivoted arms, and four adjustable pivoted arms are located at four adjustable accommodating intracavity, and adjustable pivoted arm can be in Adjustable Capacity
Put intracavity left-right rotation.By rotor, to change the position in adjustable accommodating intracavity for the adjustable pivoted arm, and then to adjust intake and exhaust
The angle of door and folding time, according to the ratio of engine breathing amount, the air capacity of entrance is made to reach most preferably.Adjustable pivoted arm exists
Adjustable accommodating intracavity can swing, and realizes two-ways regulation gas distribution phase of engine, can make electromotor in full working scope scope
Inside obtain optimal port timing, so that engine breathing amount is coordinated, circulation is coordinated, and improves the efficiency of combustion of electromotor.Adjust
After rotor, the position of adjustable pivoted arm, by lockable mechanism locking it is ensured that the stability of timing mechanism.
Preferably, described adjustable containing cavity is in sector.Adjustable containing cavity is in fan-shaped it is ensured that adjustable pivoted arm is around rotor
It is always positioned at adjustable accommodating intracavity during axis rotation.
Preferably, described lockable mechanism be screw fixed plate, screw fixed plate be connected with rotor threads and with adjustable
Conflict in containing cavity bottom surface.Lockable mechanism be screw fixed plate, screw fixed plate be connected with rotor threads and with adjustable accommodating bottom of chamber
Conflicting in face, by rotary locking mechanism, makes lockable mechanism that rotor compression to be positioned on stator.
Preferably, described adjustable accommodating bottom of chamber face is guiding surface, guiding surface tilts towards the axle center of stator, can
The bottom surface turning arm is the inclined-plane of fitting fitting with guiding surface.Adjustable accommodating bottom of chamber face is guiding surface, guiding surface court
Tilt to the axle center of stator, increase the area in adjustable accommodating bottom of chamber face, when being fitted with guiding surface in the bottom surface of adjustable pivoted arm,
Increase the area of binding face, strengthen sealing.During assembling, guiding surface can guide to adjustable pivoted arm, is easy to the dress of rotor
Join.During operation, when guiding surface and adjustable pivoted arm bottom surface can spacing to rotor it is ensured that rotor is coaxial all the time with stator,
Avoid rotor eccentricity it is ensured that the accuracy of timing mechanism.
Preferably, the thickness of described guiding surface is incremented by towards outward flange by axle center.The thickness of guiding surface is by axle
The heart is incremented by towards outward flange, and when adjustable pivoted arm is subject to centrifugal force and moves towards stator one lateral edges are eccentric, guiding surface will
Centrifugal force decomposes inclined frictional force, and frictional force is radial force, does not interfere with the axial-rotation of rotor, but can make to turn
Arm is more difficult to eccentric movement it is ensured that rotor is coaxial with stator all the time.
Preferably, described adjustable accommodating bottom of chamber face is provided with least one chute, chute is to be with the axle center of stator
The arcuate groove in the center of circle, the bottom surface of adjustable pivoted arm is provided with the slide rail of projection, and slide rail is matched with chute.Adjustable accommodating bottom of chamber face sets
It is equipped with least one chute, chute is the arcuate groove with the axle center of stator as the center of circle, the bottom surface of adjustable pivoted arm is provided with projection
Slide rail, slide rail is matched with chute, and adjustable pivoted arm and adjustable accommodating bottom of chamber face contact surface are divided into two parts, by slide rail with
The cooperation of chute strengthens sealing.Slide rail slides in chute, and the left rotation and right rotation being easy to adjustable pivoted arm is adjusted.During assembling, will slide
Just can achieve rotor and the positioning of stator it is ensured that rotor is coaxial with stator in rail corresponding insertion chute.During operation, chute can be right
Slide rail realization is radially spacing, prevents rotor eccentricity, makes rotor coaxial all the time with stator.
Preferably, described chute section is in " v " font, the section of slide rail is identical with chute section and fits.Chute
Section is in " v " font, and two side walls of chute are respectively provided with guide effect, and during assembling, slide rail can be complete by the guiding of chute wall
Inside full entrance chute, being fitted with two side walls of chute in two sides of slide rail, is easy to positioning and accurate positioning.Run
When, chute wall can play position-limiting action, prevent rotor radial eccentric mobile, and be always ensured that chute is connect with slide rail face
Touch, strengthen sealing.
Therefore, the VVT gear with middle latch functions of the present invention possesses following advantages: 1, stator inner wall
Four adjustable containing cavities of upper setting, rotor outer wall arranges four adjustable pivoted arms, and four adjustable pivoted arms are located at four adjustable containing cavities
Interior, adjustable pivoted arm can change adjustable pivoted arm in adjustable containing cavity in adjustable accommodating intracavity left-right rotation by rotor
Interior position, and then adjust angle and the folding time of inlet and exhaust valve, according to the ratio of engine breathing amount, make the sky of entrance
Tolerance reaches most preferably.Adjustable pivoted arm can swing in adjustable accommodating intracavity, realizes two-ways regulation gas distribution phase of engine, can
So that electromotor obtains optimal port timing in the range of full working scope, so that engine breathing amount is coordinated, circulation is coordinated, improve and send out
The efficiency of combustion of motivation, adjusts rotor, behind the position of adjustable pivoted arm, by lockable mechanism locking it is ensured that timing mechanism steady
Qualitative；2nd, adjustable accommodating bottom of chamber face is guiding surface, and guiding surface tilts towards the axle center of stator, increases adjustable accommodating bottom of chamber
The area in face, when being fitted with guiding surface in the bottom surface of adjustable pivoted arm, increases the area of binding face, strengthens sealing, assembling
When, guiding surface can guide to adjustable pivoted arm, is easy to the assembling of rotor, and during operation, guiding surface and adjustable pivoted arm bottom surface are joined
During conjunction can spacing to rotor it is ensured that rotor is coaxial all the time with stator, it is to avoid rotor eccentricity is it is ensured that the accuracy of timing mechanism；
3rd, adjustable accommodating bottom of chamber face is provided with least one chute, and chute is the arcuate groove with the axle center of stator as the center of circle, adjustable pivoted arm
Bottom surface be provided with projection slide rail, slide rail is matched with chute, and adjustable pivoted arm is divided into adjustable accommodating bottom of chamber face contact surface
Two parts, strengthen sealing by the cooperation of slide rail and chute.Slide rail slides in chute, is easy to the left-right rotary of adjustable pivoted arm
Modulation section, during assembling, slide rail is corresponded in insertion chute and just can achieve the positioning of rotor and stator it is ensured that rotor is same with stator
Axle, during operation, chute can be radially spacing to slide rail realization, prevents rotor eccentricity, makes rotor coaxial all the time with stator.
Brief description
Accompanying drawing 1 is a kind of present invention structural representation in embodiment 1；
Accompanying drawing 2 is a kind of structural representation of the adjustment state of the present invention；
Accompanying drawing 3 is a kind of present invention structural representation in example 2；
Accompanying drawing 4 is the present invention view profile that adjustable pivoted arm is coordinated with adjustable containing cavity in example 2；
Accompanying drawing 5 is the present invention view profile that adjustable pivoted arm is coordinated with adjustable containing cavity in embodiment 3.
Illustrate: 1- sprocket wheel, 2- positions, 3- rotor, 4- is adjustable containing cavity, 5- is adjustable pivoted arm, 6- lockable mechanism, 7- oil
Road, 8- chute, 9- slide rail.
Specific embodiment
Below by embodiment, and combine accompanying drawing, technical scheme is described in further detail.
Embodiment 1: as shown in Figure 1, 2, a kind of VVT gear with middle latch functions, including sprocket wheel 1, chain
Wheel is internal to be coaxially arranged with stator 2 and rotor 3, and rotor 2 is located in stator 3.Stator inner wall has four adjustable containing cavities 4, can
Containing cavity is adjusted to be in sector, rotor outer wall is integrally connected with four adjustable pivoted arms 5, four adjustable pivoted arms are located at four Adjustable Capacity respectively
Put intracavity.The oil circuit 7 of radial direction is provided with rotor.Lockable mechanism 6 is provided with rotor, lockable mechanism is screw fixed plate, spiral shell
Stricture of vagina fixed disk is connected with rotor threads and is conflicted with adjustable accommodating bottom of chamber face.Adjustable accommodating bottom of chamber face is guiding surface, and guiding is tiltedly
Axle center facing to stator tilts, and the bottom surface of adjustable pivoted arm is the inclined-plane of fitting fitting with guiding surface.The thickness of guiding surface
Degree is incremented by towards outward flange by axle center.
Four adjustable containing cavities are arranged on stator inner wall, rotor outer wall arranges four adjustable pivoted arms, four adjustable pivoted arm positions
In four adjustable accommodating intracavity, adjustable pivoted arm can be in adjustable accommodating intracavity left-right rotation.By rotor, to change adjustable
Pivoted arm is in the position of adjustable accommodating intracavity, and then the angle of regulation inlet and exhaust valve and folding time, according to engine breathing amount
Ratio, so that the air capacity of entrance is reached most preferably.Adjustable pivoted arm can swing in adjustable accommodating intracavity, realizes two-ways regulation
Gas distribution phase of engine, can make electromotor obtain optimal port timing in the range of full working scope, so that engine breathing amount is assisted
Adjust, circulation is coordinated, and improves the efficiency of combustion of electromotor.Adjust rotor, behind the position of adjustable pivoted arm, locked by lockable mechanism
Only it is ensured that the stability of timing mechanism.Adjustable containing cavity be in fan-shaped it is ensured that adjustable pivoted arm around rotor axis rotate when position all the time
In adjustable accommodating intracavity.Lockable mechanism be screw fixed plate, screw fixed plate be connected with rotor threads and with adjustable accommodating bottom of chamber
Conflicting in face, by rotary locking mechanism, makes lockable mechanism that rotor compression to be positioned on stator.Adjustable accommodating bottom of chamber face is guiding
Inclined-plane, guiding surface towards stator axle center tilt, increase the area in adjustable accommodating bottom of chamber face, when adjustable pivoted arm bottom surface with
During guiding surface laminating, increase the area of binding face, strengthen sealing.During assembling, guiding surface can be led to adjustable pivoted arm
To being easy to the assembling of rotor.During operation, when guiding surface and adjustable pivoted arm bottom surface can spacing to rotor it is ensured that rotor
Coaxial all the time with stator, it is to avoid rotor eccentricity is it is ensured that the accuracy of timing mechanism.The thickness of guiding surface is by axle center towards outside
Edge is incremented by, and when adjustable pivoted arm is subject to centrifugal force and moves towards stator one lateral edges are eccentric, centrifugal force is decomposed by guiding surface
Inclined frictional force, frictional force is radial force, does not interfere with the axial-rotation of rotor, but adjustable pivoted arm can be made to be more difficult to bias
Move it is ensured that rotor is coaxial with stator all the time.
Embodiment 2: the present embodiment is essentially identical with the structure of embodiment 1, and difference is, as shown in Figure 3,4, adjustable
Containing cavity bottom surface has two chutes 8, and chute is the arcuate groove with the axle center of stator as the center of circle, and the bottom surface of adjustable pivoted arm is provided with
Raised slide rail 9, slide rail is matched with chute.Chute section is in " v " font, and the section of slide rail is identical with chute section and pastes
Close.
Adjustable accommodating bottom of chamber face is provided with least one chute, and chute is the arcuate groove with the axle center of stator as the center of circle, can
The bottom surface turning arm is provided with the slide rail of projection, and slide rail is matched with chute, and adjustable pivoted arm is contacted with adjustable accommodating bottom of chamber face
Face is divided into two parts, strengthens sealing by the cooperation of slide rail and chute.Slide rail slides in chute, is easy to adjustable pivoted arm
Left rotation and right rotation is adjusted.During assembling, will just can achieve the positioning of rotor and stator in corresponding for slide rail insertion chute it is ensured that rotor with fixed
Son is coaxial.During operation, chute can be radially spacing to slide rail realization, prevents rotor eccentricity, makes rotor coaxial all the time with stator.Sliding
Channel section is in " v " font, and two side walls of chute are respectively provided with guide effect, and during assembling, slide rail can by the guiding of chute wall
Completely into chute inside, fitted with two side walls of chute in two sides of slide rail, is easy to positioning and accurate positioning.Run
When, chute wall can play position-limiting action, prevent rotor radial eccentric mobile, and be always ensured that chute is connect with slide rail face
Touch, strengthen sealing.
Embodiment 3: the present embodiment is essentially identical with the structure of embodiment 1 or 2, and difference is, as shown in figure 5, can
It is guiding surface that capacity transfer puts bottom of chamber face, and guiding surface tilts towards the axle center of stator, and the thickness of guiding surface is outer by axle center direction
Edge is incremented by, and the bottom surface of adjustable pivoted arm is the inclined-plane of fitting fitting with guiding surface.Adjustable accommodating bottom of chamber face is provided with two
Chute, chute is the arcuate groove with the axle center of stator as the center of circle, and the bottom surface of adjustable pivoted arm is provided with slide rail, slide rail and the cunning of projection
Groove matches.Chute section is in " v " font, and the section of slide rail is identical with chute section and fits.
It should be understood that this embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that
After having read the content of present invention instruction, those skilled in the art can make various changes or modifications to the present invention, these etc.
Valency form equally falls within the application appended claims limited range.
Claims (9)
1. a kind of VVT gear with middle latch functions, including sprocket wheel it is characterised in that coaxially setting inside sprocket wheel
It is equipped with stator and rotor, rotor is located in stator, and stator inner wall is provided with adjustable containing cavity, and rotor outer wall is provided with can be turned
Arm, adjustable pivoted arm is located at adjustable accommodating intracavity respectively, rotor is provided with the oil circuit of radial direction, rotor is provided with lockable mechanism,
Described adjustable accommodating bottom of chamber face is guiding surface, and guiding surface tilts towards the axle center of stator, the bottom surface of adjustable pivoted arm be with
The laminating inclined-plane that guiding surface fits.
2. the VVT gear with middle latch functions according to claim 1 is it is characterised in that described can
Containing cavity is adjusted to be in sector.
3. according to claim 1 with the middle of latch functions VVT gear it is characterised in that described lock
Locking mechanism is screw fixed plate, and screw fixed plate is connected with rotor threads and is conflicted with adjustable accommodating bottom of chamber face.
4. the VVT gear with middle latch functions according to claim 1 is it is characterised in that described leads
It is incremented by towards outward flange to the thickness on inclined-plane by axle center.
5. according to claim 1 or 2 or 3 with the middle of latch functions VVT gear it is characterised in that institute
The adjustable accommodating bottom of chamber face stated is provided with least one chute, and chute is the arcuate groove with the axle center of stator as the center of circle, can turn
The bottom surface of arm is provided with the slide rail of projection, and slide rail is matched with chute.
6. the VVT gear with middle latch functions according to claim 1 is it is characterised in that described can
Capacity transfer is put bottom of chamber face and is provided with least one chute, and chute is the arcuate groove with the axle center of stator as the center of circle, the bottom of adjustable pivoted arm
Face is provided with the slide rail of projection, and slide rail is matched with chute.
7. according to claim 5 with the middle of latch functions VVT gear it is characterised in that described cunning
Channel section is in " v " font, and the section of slide rail is identical with chute section and fits.
8. according to claim 6 with the middle of latch functions VVT gear it is characterised in that described cunning
Channel section is in " v " font, and the section of slide rail is identical with chute section and fits.
9. according to claim 1 or 2 or 3 with the middle of latch functions VVT gear it is characterised in that institute
The adjustable containing cavity stated and adjustable pivoted arm are four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510040630.6A CN104712387B (en) | 2015-01-28 | 2015-01-28 | Variable valve timing mechanism with middle locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510040630.6A CN104712387B (en) | 2015-01-28 | 2015-01-28 | Variable valve timing mechanism with middle locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104712387A CN104712387A (en) | 2015-06-17 |
| CN104712387B true CN104712387B (en) | 2017-02-01 |
Family
ID=53412059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510040630.6A Active CN104712387B (en) | 2015-01-28 | 2015-01-28 | Variable valve timing mechanism with middle locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712387B (en) |
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 |
| JP4930791B2 (en) * | 2007-12-20 | 2012-05-16 | アイシン精機株式会社 | Valve timing control device |
| DE102008050134B4 (en) * | 2008-10-04 | 2017-06-29 | Schaeffler Technologies AG & Co. KG | Camshaft adjustment device for an internal combustion engine |
| JP5585832B2 (en) * | 2010-09-10 | 2014-09-10 | アイシン精機株式会社 | Valve timing control device |
| DE102010046619A1 (en) * | 2010-09-25 | 2012-03-29 | Bayerische Motoren Werke Aktiengesellschaft | Rotor for a camshaft adjuster and camshaft adjusting system |
| JP5630489B2 (en) * | 2012-09-28 | 2014-11-26 | 株式会社デンソー | Valve timing adjustment device |
-
2015
- 2015-01-28 CN CN201510040630.6A patent/CN104712387B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104712387A (en) | 2015-06-17 |
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| C06 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 315800 Zhejiang city of Ningbo province Beilun xinqie Port Road No. 600 Building 1, No. 1 Applicant after: Ningbo Pacific Electric Control System Co., Ltd. Address before: 315800 No. 600, entrance road, Beilun District, Zhejiang, Ningbo Applicant before: Ningbo Royelek Electronics Co., Ltd. |
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| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |