CN102011670B - Device capable of automatically changing ignition advance angle - Google Patents
Device capable of automatically changing ignition advance angle Download PDFInfo
- Publication number
- CN102011670B CN102011670B CN2010105345414A CN201010534541A CN102011670B CN 102011670 B CN102011670 B CN 102011670B CN 2010105345414 A CN2010105345414 A CN 2010105345414A CN 201010534541 A CN201010534541 A CN 201010534541A CN 102011670 B CN102011670 B CN 102011670B
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- armature
- flywheel
- chute
- advance angle
- ignition advance
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Abstract
The invention relates to a device capable of automatically changing an ignition advance angle. The device comprises an iron core-containing ignition trigger coil and a fly wheel, wherein the fly wheel is driven by a crank shaft of an engine to rotate; the ignition trigger coil is arranged outside a rim of the fly wheel; the rim of the fly wheel is provided with a sliding chute of which the two ends are at different distances from the axis of the fly wheel; an armature and an elastic limiting device which are contacted with each other are arranged in the sliding chute; the other end of the elastic limiting device is fixed at one end of the sliding chute far away from the axis of the fly wheel; a part of the armature is extended out of the sliding chute; and when the part of armature is contacted with an iron core to form a closed magnetic circuit, the ignition trigger coil generates an ignition trigger signal. In the device, a mechanical structure is adopted to automatically control the ignition advance angle, so the ignition advance angle can be automatically adjusted according to different rotation speeds of the engine; and the device has a simple structure, is maintenance-free and overcomes the defects of complexity and maintenance difficulty of the conventional structure.
Description
Technical field
The present invention relates to engine art, relate in particular to a kind of device of ignition advance angle capable of automatic changing.
Background technique
Petrol engine plays the piston arrives compression top center from time of ignition, and the angle that turns over of inside crankshaft is called ignition advance angle during this period of time.Mixed gas has a time course, the effect of optimum igniting advance angle under various different operating modes, to make gas inflationary spiral largest segment be in piston acting descending stroke exactly from lighting, be burned to burn down, and most effective like this, vibration is minimum, and temperature rise is minimum.
Igniting can cause pinking too early, and piston stroking upward is obstructed, and efficient reduces, heat load, mechanical load, noise and vibration aggravation, and this should prevent.It is slow to light a fire, the gas starting difficulty, and oil consumption is big, and the effect rate is low, and exhaust sound is big.No matter igniting too early or slow excessively, all can influence the lifting of rotating speed.
Ignition advance angle is influenced by several factors, and maximum factor is a rotating speed, and along with the rising of rotating speed, the time that turns over same angle shortens, and has only bigger advance angle just can obtain corresponding pre-set time.When engine speed one timing, along with the increasing of load, closure is opened greatly; The inflammable mixture amount that gets into cylinder increases, and compression pressure and temperature at the end increases, simultaneously; Residual gas shared ratio in cylinder reduces; Mixture combustion speeds up, and at this moment, ignition advance angle should suitably reduce.Otherwise when engine load reduced, ignition advance angle then should suitably increase.
When one timing of engine air throttle aperture, along with rotating speed increases, the shared crank angle of combustion process increases, and at this moment should suitably strengthen ignition advance angle.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing technology, a kind of device of ignition advance angle capable of automatic changing is provided, simple in structure, can change ignition advance angle automatically.
For solving the problems of the technologies described above; The present invention adopts following technological scheme: a kind of device of ignition advance angle capable of automatic changing; Comprise containing cored igniting trigger winding, this device also comprises the flywheel by the bent axle driven rotary of motor, and said igniting trigger winding is located at outside the wheel rim of flywheel; The wheel rim of said flywheel is provided with chute, and the two ends of said chute are different with the axial line distance of flywheel; Be provided with the armature and the elastic limit device that are in contact with one another in the said chute, the end that said elastic limit device does not contact with armature is fixed on the end of chute away from the flywheel axis; The part of said armature is stretched out chute, and when this part armature contacted the formation closed magnetic circuit with iron core, the igniting trigger winding produced the igniting trigger signal, and said chute is located at the rear end of flywheel sense of rotation away from an end of flywheel axis.
The device of the present invention's ignition advance angle capable of automatic changing mainly is made up of igniting trigger winding and flywheel, and the rotating speed of flywheel is confirmed by motor; The armature that can constitute closed magnetic circuit with the igniting trigger winding is set on the outer rim of flywheel, and armature is located in the chute of flywheel outer rim, along with the centrifugal force that the flywheel rotation produces, armature extrusion spring and moving in chute reaches the change ignition advance angle; And when rotating speed reduced, armature was pushed back by spring, had also changed ignition advance angle.
Compared with prior art; The advantage that the present invention has: adopt mechanical structure to come the automatic control ignition advance angle, can reach automatic adjustment ignition advance angle according to the rotating speed difference of motor, simple in structure; Need not safeguard, avoid the complexity and the difficult shortcoming of safeguarding of existing structure.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Description of reference numerals:
1-flywheel 2-armature
3-chute 4-trigger winding
5-spring locking cap 6-spring
7-iron core 8-bent axle
Embodiment
A kind of device of ignition advance angle capable of automatic changing comprises containing cored igniting trigger winding that this device also comprises the flywheel by the bent axle driven rotary of motor, and said igniting trigger winding is located at outside the wheel rim of flywheel; The wheel rim of said flywheel is provided with chute, and the two ends of said chute are different with the axial line distance of flywheel; Be provided with the armature and the elastic limit device that are in contact with one another in the said chute, the said elastic limit device the other end is fixed on the end of chute away from the flywheel axis; The part of said armature is stretched out chute, and when this part armature contacted the formation closed magnetic circuit with iron core, the igniting trigger winding produced the igniting trigger signal.
Because the two ends of chute are different with the axial line distance of flywheel, the inevitable because centrifugal action of the armature in the flywheel of high speed rotating is moved to abaxial position by paraxial position, and wherein moving of armature do not change it and contact the formation closed magnetic circuit with iron core.
Preferably, said chute is located at the rear end of flywheel sense of rotation away from an end of flywheel axis.Because of rotating speed is the principal element that influences ignition advance angle, along with rotating speed increases, armature will because of centrifugal force away from the flywheel axis, move several angle simultaneously backward, reach the purpose that increases ignition advance angle.
Preferably, between said armature and the elastic limit device for being fixedly connected.Said elastic limit device is a spring.Spring is fixedly connected with armature, more helps limiting the position of armature, reduces collision between the two.
Preferably, the notch of said chute cross section distance is less than the distance between the groove both sides.Armature moves in the chute of little notch, can prevent in the high speed rotating flywheel, to fly out.The cross section of this chute can be the narrow platform shape of base sipes mouth, or the circle of first half cut-out, or the ellipse of first half cut-out etc.
Describe the present invention below in conjunction with specific embodiment and accompanying drawing, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection scope of the present invention.
The device of a kind of ignition advance angle capable of automatic changing as shown in Figure 1; Comprise and contain cored 7 igniting trigger winding 4; Igniting trigger winding 4 is fixed on transfixion on the motor body, and flywheel 1 is high speed rotating under the drive of bent axle 8, and the armature 2 on the flywheel 1 has centrifugal force; Under this action of centrifugal force, armature 2 relatively moves along the chute on the flywheel 3.Because the two ends of chute 3 are different with the axial line distance of flywheel 1, and will away from an end be located at the rear end of flywheel 1 sense of rotation.Change the relative position of armature 2 and iron core 7 through relatively moving, the closed magnetic circuit that iron core 7 and armature 2 form is in the moment that armature 2 will leave, and igniting trigger winding 4 produces the trigger signals of lighting a fire, and is used for the work fire signal of motor.
Spring 6 is installed in the chute 3 with spring locking cap 5, and spring 6 contacts with armature 2, can as required both be fixedly connected; Utilize the elastic force of spring 6 to come the position of relative fixed armature 2, prevent that armature 2 from moving freely in chute 3.Spring locking cap 5 is fixed on spring 6 in the chute 3.
The sense of rotation of flywheel 1 shown in Figure 1 is counterclockwise, and along with the raising of flywheel 1 rotating speed, armature 2 is mobile to clockwise along chute 3, thereby has increased the ignition advance angle of motor; Otherwise along with the reduction of flywheel 1 rotating speed, armature 2 is relatively moved along chute 3 by spring 6 extruding counterclockwise, thereby has reduced the ignition advance angle of motor.Realize changing automatically the purpose of ignition advance angle through above action.
The above only is a preferred implementation of the present invention, should be pointed out that the present invention is not limited to above-mentioned preferred forms; Under the prerequisite that does not break away from the principle of the invention, anyone can draw other various forms of products under enlightenment of the present invention.Though but on its shape or structure, do any variation, every identical with the present invention or akin technological scheme is all within its protection domain.
Claims (4)
1. the device of an ignition advance angle capable of automatic changing comprises containing cored igniting trigger winding, and it is characterized in that: this device also comprises the flywheel by the bent axle driven rotary of motor, and said igniting trigger winding is located at outside the wheel rim of flywheel; The wheel rim of said flywheel is provided with chute, and the two ends of said chute are different with the axial line distance of flywheel; Be provided with the armature and the elastic limit device that are in contact with one another in the said chute, the end that said elastic limit device does not contact with armature is fixed on the end of chute away from the flywheel axis; The part of said armature is stretched out chute, and when this part armature contacted the formation closed magnetic circuit with iron core, the igniting trigger winding produced the igniting trigger signal, and said chute is located at the rear end of flywheel sense of rotation away from an end of flywheel axis.
2. device as claimed in claim 1 is characterized in that: between said armature and the elastic limit device for being fixedly connected.
3. according to claim 1 or claim 2 device, it is characterized in that: said elastic limit device is a spring.
4. device as claimed in claim 1 is characterized in that: the notch distance of said chute cross section is less than the distance between the groove both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105345414A CN102011670B (en) | 2010-11-05 | 2010-11-05 | Device capable of automatically changing ignition advance angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105345414A CN102011670B (en) | 2010-11-05 | 2010-11-05 | Device capable of automatically changing ignition advance angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102011670A CN102011670A (en) | 2011-04-13 |
| CN102011670B true CN102011670B (en) | 2012-05-23 |
Family
ID=43841969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105345414A Active CN102011670B (en) | 2010-11-05 | 2010-11-05 | Device capable of automatically changing ignition advance angle |
Country Status (1)
| Country | Link |
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| CN (1) | CN102011670B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619666A (en) * | 2012-04-11 | 2012-08-01 | 江苏常发农业装备股份有限公司 | Method and device for adjusting ignition advance angles and equipment applying device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038956U (en) * | 1988-11-17 | 1989-06-07 | 褚庆怀 | Distributor suitable for large igniting advance angle |
| EP0356151A2 (en) * | 1988-08-19 | 1990-02-28 | Hitachi, Ltd. | Centrifugal advance mechanism |
| CN2114038U (en) * | 1992-04-08 | 1992-08-26 | 赵树卓 | Distributor for electric spark ignition |
| US5167214A (en) * | 1991-04-11 | 1992-12-01 | Pertronix, Inc. | Push rod-actuated engine ignition apparatus |
| CN2372473Y (en) * | 1998-09-14 | 2000-04-05 | 万德鸿 | Hall automatic advanced ignition device |
| US20100012084A1 (en) * | 2008-07-16 | 2010-01-21 | Walbro Engine Management, L.L.C. | Controlling A Light-Duty Combustion Engine |
-
2010
- 2010-11-05 CN CN2010105345414A patent/CN102011670B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0356151A2 (en) * | 1988-08-19 | 1990-02-28 | Hitachi, Ltd. | Centrifugal advance mechanism |
| CN2038956U (en) * | 1988-11-17 | 1989-06-07 | 褚庆怀 | Distributor suitable for large igniting advance angle |
| US5167214A (en) * | 1991-04-11 | 1992-12-01 | Pertronix, Inc. | Push rod-actuated engine ignition apparatus |
| CN2114038U (en) * | 1992-04-08 | 1992-08-26 | 赵树卓 | Distributor for electric spark ignition |
| CN2372473Y (en) * | 1998-09-14 | 2000-04-05 | 万德鸿 | Hall automatic advanced ignition device |
| US20100012084A1 (en) * | 2008-07-16 | 2010-01-21 | Walbro Engine Management, L.L.C. | Controlling A Light-Duty Combustion Engine |
Non-Patent Citations (1)
| Title |
|---|
| 蔡兴旺.《汽车构造与原理 （上册 发动机）》.《汽车构造与原理 （上册 发动机）》.机械工业出版社,2004,236. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102011670A (en) | 2011-04-13 |
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