CN206845254U - electric variable valve timing mechanism - Google Patents
electric variable valve timing mechanism Download PDFInfo
- Publication number
- CN206845254U CN206845254U CN201720778682.8U CN201720778682U CN206845254U CN 206845254 U CN206845254 U CN 206845254U CN 201720778682 U CN201720778682 U CN 201720778682U CN 206845254 U CN206845254 U CN 206845254U
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- Prior art keywords
- auxiliary cam
- main
- main camshaft
- camshaft
- engine
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Abstract
The utility model discloses a kind of electric variable valve timing mechanism, belongs to timing of engine technical field, including main camshaft and the main camshaft gear located at described main camshaft one end, the main camshaft are provided with main cam；The main camshaft be hollow-core construction and its inside be coaxially installed with auxiliary cam axle, the auxiliary cam axis connection Vidacare corp, eccentrically mounted on the auxiliary cam axle to have auxiliary cam, the auxiliary cam passes the main camshaft periphery and set close to one end of the main cam.The utility model can realize increaseing or decreasing for engine timing, valve timing can be adjusted in real time according to operating mode, combination property of the engine under different rotating speeds difference operating mode is improved, engine economy, dynamic property and discharge performance is improved, has positive role in terms of engine energy-saving emission reduction.
Description
Technical field
The utility model belongs to timing of engine technical field, more particularly to a kind of electric variable valve timing machine
Structure.
Background technology
The start-up time of conventional engine valve is controlled by single camshaft, can not change gas with the raising of rotating speed and load
Door start-up time, therefore the shortcomings of economy is deteriorated when exposing high rotating speed high load capacity, discharge performance is deteriorated, dynamic property is deteriorated.
Utility model content
Technical problem to be solved in the utility model is：A kind of electric variable valve timing mechanism is provided, to solve to send out
Motivation valve opening time in different operating modes is immutable, cause engine in the process of running rotating speed improve after, engine enters
It is vented the technical problem of deficiency.
In order to solve the above technical problems, the technical solution of the utility model is：Electric variable valve timing mechanism, including master
Camshaft and the main camshaft gear located at described main camshaft one end, the main camshaft are provided with main cam；The master is convex
Wheel shaft be hollow-core construction and its inside be coaxially installed with auxiliary cam axle, the auxiliary cam axis connection Vidacare corp, the pair
Eccentrically mounted on camshaft to have auxiliary cam, the auxiliary cam passes the main camshaft periphery and close to one end of the main cam
Set.
As an improvement the Vidacare corp includes：
The driving gear driven by motor；
Auxiliary cam axle driven gear located at described auxiliary cam axle one end, the auxiliary cam axle driven gear and the master are convex
Wheel axle gear is located at same one end, and the auxiliary cam axle driven gear is meshed with the driving gear.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are：
Because the inside of the main camshaft of electric variable valve timing mechanism is coaxially installed with auxiliary cam axle, the auxiliary cam
Axis connection Vidacare corp, eccentrically mounted on the auxiliary cam axle to have auxiliary cam, the auxiliary cam passes the main camshaft
Periphery and one end setting of the close main cam, thus engine is under nominal operating conditions, auxiliary cam axle rotational angular velocity
It is identical with main camshaft；When needing variable timing, auxiliary cam axle is set to produce one with respect to main camshaft by Vidacare corp
Individual relative angle, after auxiliary cam rotates angle needed for completion relative to main cam, auxiliary cam axle keeps angle with main camshaft again
Speed sync, completion timing is variable, it is necessary to when releasing the timing, passes through the phase that Vidacare corp eliminates main cam and auxiliary cam
To differential seat angle, recover normal operating mode.
Electric variable valve timing mechanism provided by the utility model, increaseing or decreasing for engine timing can be achieved, can
To adjust valve timing in real time according to operating mode, combination property of the engine under different rotating speeds difference operating mode is improved, is improved
Engine economy, dynamic property and discharge performance, there is positive role in terms of engine energy-saving emission reduction.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is close-up schematic view at A in Fig. 1；
Fig. 3 is the structural representation at another visual angles of Fig. 1；
Fig. 4 is close-up schematic view at B in Fig. 3；
In figure：1- main camshafts, 2- main camshaft gears, 3- main cams, 4- auxiliary cam axles, 5- Vidacare corps, 51-
Motor, 52- driving gears, 53- auxiliary cam axle driven gears, 6- auxiliary cams.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Shown in common as shown in Figure 1 to Figure 4, a kind of electric variable valve timing mechanism, including main camshaft 1 and located at main cam
The main camshaft gear 2 of the one end of axle 1, main camshaft 1 are provided with main cam 3；Main camshaft 1 is hollow-core construction and its inside is coaxial
Auxiliary cam axle 4 is installed, auxiliary cam axle 4 connects Vidacare corp 5, eccentrically mounted on auxiliary cam axle 4 to have an auxiliary cam 6, secondary convex
Wheel 6 passes the periphery of main camshaft 1 and set close to one end of main cam 3.
Preferably, above-mentioned Vidacare corp 5 includes：The driving gear 52 driven by motor 51；Located at auxiliary cam
The auxiliary cam axle driven gear 53 of the one end of axle 4, auxiliary cam axle driven gear 53 is located at same one end with main camshaft gear 2, secondary convex
Wheel shaft driven gear 53 is meshed with driving gear 52.
Certainly, above-mentioned Vidacare corp 5 can also select direct driving motor etc., be well known to those skilled in the art,
It will not be repeated here.
Its operation principle is as follows：
Under nominal operating conditions, motor 51 drives driving gear 52 to rotate to engine, so as to drive auxiliary cam axle
Driven gear 53 rotates, and the rotational angular velocity of auxiliary cam axle driven gear 53 is identical with main camshaft gear 2, and main cam 3 and pair are convex
There is no phase difference between wheel 6；When needing variable timing, motor 51 receives signal for faster and pulsewidth, and impact speed causes
Auxiliary cam axle driven gear 53 produces a relative angle with respect to main camshaft gear 2, when auxiliary cam 6 rotates relative to main cam 3
After angle needed for completion, as Fig. 2 and Fig. 4 is jointly shown, auxiliary cam axle driven gear 53 keeps angle with main camshaft gear 2 again
Speed sync, completion timing is variable, it is necessary to when releasing the timing, and motor 51 receives prominent reduce-speed sign again, and it is convex to eliminate master
The relative angular difference of wheel 3 and auxiliary cam 6, recover normal operating mode.
Certainly, motor 51 can also receive reduce-speed sign and pulsewidth as needed, and completion timing is variable, is needing to release
During the timing, motor 51 receives prominent signal for faster again, recovers normal operating mode.
Electric variable valve timing mechanism provided by the utility model, increaseing or decreasing for engine timing can be achieved, can
To adjust valve timing in real time according to operating mode, combination property of the engine under different rotating speeds difference operating mode is improved, is improved
Engine economy, dynamic property and discharge performance, there is positive role in terms of engine energy-saving emission reduction.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (2)
1. electric variable valve timing mechanism, including main camshaft and the main camshaft gear located at described main camshaft one end,
The main camshaft is provided with main cam；Characterized in that, the main camshaft be hollow-core construction and its inside be coaxially installed with
Auxiliary cam axle, the auxiliary cam axis connection Vidacare corp is eccentrically mounted on the auxiliary cam axle to have an auxiliary cam, and the pair is convex
Wheel passes the main camshaft periphery and set close to one end of the main cam.
2. electric variable valve timing mechanism according to claim 1, it is characterised in that the Vidacare corp bag
Include：
The driving gear driven by motor；
Auxiliary cam axle driven gear located at described auxiliary cam axle one end, the auxiliary cam axle driven gear and the main camshaft
Gear is located at same one end, and the auxiliary cam axle driven gear is meshed with the driving gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720778682.8U CN206845254U (en) | 2017-06-29 | 2017-06-29 | electric variable valve timing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720778682.8U CN206845254U (en) | 2017-06-29 | 2017-06-29 | electric variable valve timing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845254U true CN206845254U (en) | 2018-01-05 |
Family
ID=60803197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720778682.8U Active CN206845254U (en) | 2017-06-29 | 2017-06-29 | electric variable valve timing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630226A (en) * | 2019-01-30 | 2019-04-16 | 福州普索工程技术有限公司 | A kind of camshaft |
| CN109736945A (en) * | 2019-01-16 | 2019-05-10 | 西华大学 | A kind of opposed pistons three-stroke internal combustion linear generating unit |
-
2017
- 2017-06-29 CN CN201720778682.8U patent/CN206845254U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736945A (en) * | 2019-01-16 | 2019-05-10 | 西华大学 | A kind of opposed pistons three-stroke internal combustion linear generating unit |
| CN109630226A (en) * | 2019-01-30 | 2019-04-16 | 福州普索工程技术有限公司 | A kind of camshaft |
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