CN1161405A - Starting and electric generating device for two-stroke internal combustion engine - Google Patents

Abstract

To prevent the enlargement of a two-cycle internal combustion engine and at the same time prevent a reversal brought about immediately before stopping it by a second closed circuit formed of a starting coil through a closed second contact, a brush in contact and a commutator. The starter comprises a generating coil and a start coil to supply power to start coil through the contact of the brush and the rectifier. A brush contacting mechanism contacts the brush and the rectifier only if the idle revolution of the engine is higher than a predetermined value or keeps the contacts apart vice versa. A switching mechanism closes the first contact and simultaneously shuts down the second contact by an on-off operation. A first closing circuit closes the starting coil and the battery by passing through the first contact, the brush and the rectifier electrically. A second closing circuit powers the starting coil by passing through the second contact, the brush and the rectifier electrically.

Description

The actuating and generating device of two stroke IC engine

The actuating and generating device that involved in the present invention is is combined into one the starting arrangement and the electricity generating device of two stroke IC engine.

As the actuating and generating device of existing internal-combustion engine, specially real opening has the case record on the flat 3-91064 communique in Japan.

This case device is the actuating and generating device of coiling actuating coil and power coil on the stator coil of same armature, and it is by in the stator coil outside rotation of field coil magnetic pole being arranged, disposing the current converter that brush and commutator constitute in the stator coil inboard and the electromagnetic coil that brush is moved constitutes like this.

Like this, when switch starter being connected (ON) operation, electric current flows to actuating coil from battery through current converter, as motor work, makes engine starting.

And at disconnection (OFF) state of switch starter, power coil and battery form the closed-loop path, because the rotation of field coil magnetic pole, as generator work, to battery charge.

When working as generator, actuating coil is of no use basically.

But, existing two stroke IC engine, because being about to of worrying that running torque in crankshaft rotating portion diminishes causes counter-rotating before stopping, thus generally strengthened the moment of inertia of crankshaft rotating portion, to prevent its counter-rotating.

But problem is, one adds necessary moment of inertia, and the performance of internal-combustion engine has been become burden, and device proper becomes big and weighs simultaneously.

In view of this present invention promptly is, its purpose is that under the constant situation about very much not increasing the weight of of two stroke IC engine obsolete actuating coil prevents that two stroke IC engine is about to stop the actuating and generating device of preceding counter-rotating outside the utilization starting.

For achieving the above object, the present invention is that to supply with at the electric energy that power coil also has actuating coil, actuating coil in addition be to contact on the actuating and generating device of the two stroke IC engine of finishing with commutator by brush, include: connect the structure of disembarking, with the rotating speed of the idling that do not reach two stroke IC engine as benchmark, implement aforementioned brush and commutator connect from, aforementioned brush contacts with commutator below the regulation rotating speed, has surpassed this regulation rotating speed and has promptly broken away from; Connection (ON) operation with initiate key makes the 1st junction closure, the switching mechanism that the 2nd contact is opened; By closure the 1st contact and aforementioned brush that contacts and commutator make battery and aforementioned actuating coil couple together the 1st closed-loop path that forms; By closure the 2nd contact and the aforementioned brush and the commutator that contact, the 2nd closed-loop path that forms with aforementioned actuating coil only.

Stop at two stroke IC engine, brush becomes contact condition with commutator, switch starter is implemented to connect (ON) operation, the 1st junction closure, the 1st closed-loop path forms, the electric energy of battery is supplied with actuating coil by brush with contacting of commutator, in rotor, produce running torque, crankshaft rotating, engine starting.

Before two stroke IC engine will stop, brush becomes contact condition with commutator, the 2nd junction closure, only there is the 2nd closed-loop path of actuating coil to form, because being rotated in of rotor produces electromotive force in the actuating coil, and having electric current to flow, the braking moment that is produced by electromagnetic resistance acts on rotor, has stoped bent counter-rotating together.

So just there is no need to preventing counter-rotating to rotor added force of inertia square, thus avoided the change of device big with increase the weight of.

And under the situation that surpasses the normal operation of regulation rotating speed, actuating coil can not become any burden.

Aforementioned brush connects the structure of disembarking, owing to be the actuating and generating device of the two stroke IC engine recorded and narrated of the present invention program 1 of being used for constituting by centrifugal automatic speed governing device, can constitute with simple machinery, carry out regulation rotating speed with two stroke IC engine and be the aforementioned brush of benchmark and commutator connect from.

Aforesaid switching mechanism, owing to be to be relay contact with aforementioned the 1st contact and the 2nd contact, carry out the present invention program 1 of relay-set of switching of this relay contact or the actuating and generating device of 2 two stroke IC engines of being recorded and narrated with the operation of aforementioned switch starter, so can make the simple switch mechanism that the electric energy that utilizes battery drives.

The drawing simple declaration

Fig. 1 is the cross-sectional side view of one embodiment of the invention actuating and generating device; Fig. 2 is the cross-sectional side view of this another state of actuating and generating device; Fig. 3 is the inner rotator front elevation; Fig. 4 is same rotor back elevation; Fig. 5 is the V-V sectional view of Fig. 3; Fig. 6 is a speed regulator inner casing front elevation; Fig. 7 is the back elevation of same inner casing; Fig. 8 is the VIII-VIII sectional view on Fig. 6; Fig. 9 is the brush carrier front elevation; Figure 10 is same brush carrier back elevation; Figure 11 is the XI-XI sectional view on Fig. 9; Figure 12 is a minus side wire board oblique drawing; Figure 13 is positive side wire board oblique drawing; Figure 14 is a rectification stroma front elevation; Figure 15 is same rectification stroma back elevation; Figure 16 is the XIII-XIII sectional view on Figure 14; Figure 17 is this embodiment's starting mechanism circuit diagram; Figure 18 is the actuating and generating device sectional view of equipment state on another embodiment's two stroke IC engine.

Embodiment

Bottom borrows Fig. 1～17 to be illustrated with regard to one embodiment of the invention.

The actuating and generating device 1 of embodiments of the invention is to be arranged at the device of lift-launch on the two stroke IC engine on the motor bike, and its cross-sectional side view is shown on Fig. 1 and Fig. 2 as a special state.

Actuating and generating device for vehicles 80 is arranged at a side of crankcase 82, and internal rotor 90 tightens up with nut 84 with the end that its rotor hub 91 is matched with bent axle 83, and with bent axle 83 rotations.

Inner rotator 90 is shown in Fig. 3～5.

On the rotor hub 91 of the end that is flush-mounted in bent axle 83, its periphery has cooperated 6 magnets 92, and is topped by rotor cover 93.

At a side-prominent formation cylindrical part 91d of rotor hub 91, be equipped with pin 91e at the assigned position of cylindrical part 91d.

Periphery at the cylindrical part 91d of this rotor hub 91 has flat partially speed regulator shell 94 cylindraceous, and its inboard edge of opening is fixed on the rotor hub 91 with rivet 95.

This speed regulator shell 94, side face is along circumferentially equally spaced forming 6 axial shallow ridges bar 94a within it; And corresponding with these 6 ditch bars, form the claw 94b that goes out to central shaft one lateral bending Qu Yan in outer openings edge.

On the cylindrical part 91d of rotor hub 91, be combined with hub 96 in the speed regulator of roughly making the round-ended cylinder shape, it is equipped with from the outside, allows to endwisely slip, and rotates with cylindrical part.

This speed regulator inner casing 96, shown in Fig. 6～8, the periphery of the cylindrical part 96b that surrounds the 96a of round bottom portion equally spaced bulging form the recess 96c of opening laterally of 6 places; The diapire 96d of this recess 96c then becomes tilted conical.

In addition, in the periphery of cylindrical part 96b, symmetry is outstanding to have formed hub portion 96f, forms screw hole 96e on this hub portion 96f; And join with the 96a of round bottom portion, run through screw hole 96e by screw 97 and brush carrier 100 is tightened be fixed as one.

In 6 recess 96c of periphery of this speed regulator inner casing 96, put Metal Ball 98 respectively into, when cylindrical part 96b is matched with the cylindrical part 91d of rotor hub 91 from the outside with being free to slide, recess 96c is together with pack into the inboard of aforementioned speed regulator shell 94 of ball 98, such as depicted in figs. 1 and 2, the crooked claw 94b of speed regulator shell 94, covered the part of recess 96c opening, and ball 98 has been placed between the diapire 96d of it and recess 96c.

And, being provided with breach 91g in the part of the cylindrical part 91d of speed regulator inner casing 96, the cylindrical part 91d of aforementioned rotor hub 91 goes up the prominent pin 91e that establishes and cooperates wherein, and with respect to rotor hub 91, speed regulator inner casing 96 can only slide vertically and can not relatively rotate.

Clamping spring 99 between the 96a of round bottom portion of side bottom and speed regulator inner casing 96 within the cylindrical part 91d of rotor hub 91; Facing to rotor hub 91, give laterally elastic force to speed regulator inner casing and brush carrier 100, thereby ball 98 is clamped between the inclined floor 96d of the claw 94b of oblique bending of speed regulator shell 94 and recess 94c.

Simultaneously, between the outer circumferential face of the cylindrical part 96b of the inner peripheral surface of speed regulator shell 94 and speed regulator inner casing 96, make it to maintain ball 98 in radial direction movably nargin to a certain degree.

Thereby, speed regulator inner casing 96 at state shown in Figure 1, increase along with the rotational speed of inner rotator 90, ball 98 moves to centrifugal direction because of centrifugal force, be subjected to the guiding of the oblique bending claw 94b of speed regulator shell 94, the inclined floor 96d of the recess 96c of pushing speed regulator inner casing 96 has just become the speed regulator inner casing 96 that makes shown in Figure 2 and has overcome the elastic force of spring 99 to axial inner slide with brush carrier 100.

Secondly, brush carrier 100 as Fig. 9～11, is the shape that cylinder 100b surrounds the round bottom 100a of portion; In cylindrical part 100b, roughly become concentric circles to separate and formed major diameter recess 101a, middle diameter recess 101b, minor diameter recess 101c.Simultaneously, along outer circumferential face and the inner peripheral surface of minor diameter recess 101c, on the 100a of round bottom portion, wear the circular major diameter gap 102a and the small diametrical gap 102b that have an appointment into a week respectively.

In addition, the regulation symmetrical position at major diameter recess 101a has formed a pair of circular hole 103 that runs through the screw 97 that combines with speed regulator inner casing 96.

In the circular major diameter gap 102a of brush carrier 100, embedded the minus side wire board 105 that a picture part as shown in Figure 12 is damaged, formation is circular from round bottom portion 100a one side; Equally, in small diametrical gap 102b, then embedded as shown in Figure 13, slightly become the minor diameter positive side wire board 106 of same shape.

And each wire board 105,106 has formed outstanding 105a, 106a respectively at 3 places that stipulate, towards a side opposite with the 100a of round bottom portion.

From the oxygen-free cupreous 111a that a minus side brush of the assigned position 110a that is disposed at major diameter recess 101a extends out, be connected on the projection 105a of aforementioned minus side wire board 105; And three minus side brush 110b of three assigned positions of diameter recess 101b in being disposed at, 110c, adjacent two minus side brush 110b among the 110d, 110c couples together with lead 111b mutually, the lead 111c that extends out from one of them minus side brush 110c and the lead 111d that extends out from a remaining minus side brush 110d are connected in other two projection 105a of minus side wire board 105,105a.

Thereby the minus side brush 110a that is disposed at major diameter recess 101a and three minus side brush 110b that are disposed at diameter recess 101b, 110c, 110d are by 105 one-tenth on states of wire board.

In addition, a lead 113a that positive side brush 112a extends out from the assigned position that is disposed at minor diameter recess 101c, be connected in a projection 106a of aforementioned positive side wire board 106, and three positive side brush 112b of three assigned positions of diameter recess 101b in being disposed at, 112c, adjacent two positive side brush 112b among the 112d, 112c couples together with lead 113b mutually, and the lead 113d that a lead 113c that extends out from one of them positive side brush 112c and a remaining positive side brush 112d extend out is connected in other two projection 106a of positive side wire board 106,106a.

Thereby, the positive side brush 112a that is disposed at minor diameter recess 101c be disposed in three the positive side brush 112b, 112c, 112d of diameter recess 101b by 106 one-tenth on states of positive side wire board.

And, each brush by with previous embodiment in be clipped on recess in the same manner spring 115 give elastic force laterally because retainer 116 is arranged, thereby prevent that it from dropping out from recess.

With above-mentioned brush carrier 100 corresponding rectification stromas 120, shown in Figure 14～16, be around the 120a of plectane portion, to be provided with than the big cylindrical part 120b of brush carrier 100 diameters; Respectively facing to the major diameter recess 101a of brush carrier 100, minor diameter recess 101c makes circular major diameter conduction road 121, minor diameter conduction road 123 on the surface of brush carrier 100 1 sides of the 120a of plectane portion; Disposing the commutator segment 122 that is divided into 18 equal portions facing to middle diameter recess 101b circularly.

Major diameter conduction road 121 and minor diameter conduction road 123 have a terminal plate part 121a, 123a to extend out respectively, run through the 120a of plectane portion, protrude in outer surface; 18 commutator segments 122 then have terminal plate 122a to run through the 120a of plectane portion respectively, protrude in outer surface.

Be disposed at the outer stator 130 of the periphery of inner rotator 90, constitute with actuating coil 133 by on the yoke 131a of stator coil 131, twining power coil 132.

The interior perimembranous of the stator coil 131 of this outer stator 130 is extended the part that formed cylindrical part 135 has covered aforementioned speed regulator shell 94 and brush carrier 100 vertically; Simultaneously, connect the cylindrical part 120b (with reference to Fig. 1 and Fig. 2) that is supported on rectification stroma 120.

On Figure 17, show the circuit of this embodiment's starting mechanism.Recoil the actuating coil 133 on the yoke of stator coil 131, be conducted by flexible cord 134 that extends out from assigned position and the commutator segment of stipulating 122.

Major diameter conduction road 121 is connected in the negative pole end of battery (group) 140, and ground connection; Minor diameter conduction road 123 is connected in the C contact of the starter relay 141 that switches as relaying; The positive terminal of battery 140 is connected in the end of the relay coil 141a of starter relay 141 again when being connected in starter relay 141 open type NO contacts.

The normal close type NC contact of starter relay 141 is connected in major diameter conduction road 121.

The other end of relay coil 141a is connected in a terminal of initiate key 142; Another terminal ground connection.

4 minus side brush 110a, 110b, 110c, 110d and 4 positive side brush 112a, 112b, 112c, 112d of being supported on brush carrier 100 can move the major diameter conduction road 121 that is toward or away from rectification stroma 120 respectively, commutator segment 122 is with in the minor diameter conduction road 123 any one.

Minus side brush 110a and major diameter conduction road 121 join from; Other minus side brushes 110b, 110c, 110d then respectively can with commutator segment 122 join from; At contact condition, contact successively with the commutator segment that is circular configuration, these 4 minus side brush 110a, 110b, 110c, 110d are on state by minus side wire board 105.

In addition, positive side brush 112a and minor diameter circuit 123 join from; Other positive side brush 112b, 112c, 112d can be respectively with commutator segment 122 join from, contact with the commutator segment 122 that becomes circular configuration successively at contact condition; These 4 positive side brush 112a, 112b, 112c, 112d are on state by positive side wire board 106.

Connecing of whole 8 brush 110a, 110b, 110c, 110d, 112a, 112b, 112c, 112d and major diameter conduction road 121, commutator segment 122, minor diameter conduction road 123 from carrying out automatically.If the rotating speed of bent axle 83 is in below the regulation rotating speed that does not reach idling speed, then by the spring force of spring 99, each brush (see figure 1) that contacts with major diameter conduction road 121, commutator segment 122, the minor diameter conduction road 123 of regulation respectively; And in case surpassed the regulation rotating speed, by centrifugal action, ball 98 acts on the oblique cone diapire 96d of the recess 96c of speed regulator inner casing 96, overcome the spring force of spring 99, speed regulator inner casing 96 is moved with brush carrier 100, brush leaves major diameter conduction road 121 together, commutator segment 122, minor diameter conduction road 123 (see figure 2)s.

Internal-combustion engine about two-stroke 50cc, idling speed is about 1800rpm, so brush left when being preferably in 1000～1600rpm.

Thereby, below the regulation rotating speed, brush respectively with the major diameter conduction road 121 of regulation, commutator segment 122, minor diameter conduction road 123 contacted situations under, closed between the relay contact C-NO of starter relay 141, be connected with battery 140 and actuating coil 133, form the 1st closed-loop path; And open between relay contact C-NO, closed between relay contact C-NC, then form the 2nd closed-loop path that actuating coil 133 is only arranged.

On the actuating and generating device 80 of above-mentioned such formation, initiate key is connected (ON) operation, relay coil 141a excitation, the C contact of starter relay 141 and NO junction closure, the 1st closed-loop path is connected, and promptly the electric current from battery 140 passes through minor diameter conduction road 123 successively, positive side brush 112a, positive 106,3 positive side brush 112b of side wire board, 112c, 112d, 3 commutator segments 122, flow through desired actuating coil 133, then, flow through the electric current of actuating coil 133 through 122,3 minus side brushes of 3 commutator segments 110b, 110c, 110d, minus side wire board 105, minus side brush 110a, battery 140 is got back on major diameter conduction road 121.

By this electric current that flows through actuating coil 133 inner rotator 90 is produced running torque, make bent axle 83 rotations, engine starting.

And be in disconnection (OFF) state at initiate key 142, when the C contact of starter relay 141 and NC junction closure, before internal-combustion engine will stop, brush contacts with major diameter conduction road 121, commutator segment 122, the minor diameter conduction road 123 of regulation respectively, (state shown in Figure 17) connected in the 2nd closed-loop path, promptly forms the closed-loop path by actuating coil 133 with contacting of brush and commutator segment etc.; Being rotated in the actuating coil 133 of inner rotator 90 produces electromotive force, and actuating coil 133 is as power coil work, and electric current flows in the 2nd closed-loop path, and thus, the braking moment that is produced by electromagnetic resistance acts on inner rotator 90.

Thereby the counter-rotating of the bent axle 83 when two stroke IC engine will stop is by this braking moment is stoped.

Particularly as present embodiment little air displacement (50～100cc), under the situation of the smaller rotation internal magnetic type inner rotator 90 of rotatory inertia, the possibility that will stop front crankshaft 83 counter-rotatings is bigger than other rotors, actuating coil 133 is used as power coil, make it produce braking moment, prevent that with this its counter-rotating from being effectively.

On the internal-combustion engine about two-stroke 50cc, the brush contact is effective as electromagnetic resistance when 500rpm, can effectively suppress counter-rotating.

And be under the situation of normal operation above the regulation rotating speed, brush and major diameter conduction road 121, commutator segment 122, separate on minor diameter conduction road 123, and actuating coil can not become any burden.

Present embodiment, because in the inboard of actuating coil 131 configuration rotation internal magnetic type inner rotator 90, so, rotatory inertia is little, can not cause any burden to engine performance, and can do whole device small and lightly, the while be arranged at brush and commutator one side of inner rotator 90, avoided heat affecting, can the performance of brush not impacted.

In addition, connecing from being that centrifugal force by ball 98 carries out automatically of brush and commutator segment and conduction road, thereby just do not need to be provided with the mechanism of starting lever interlock, mobile brush carrier and based on the such two cover mechanisms of the control mechanism of the detected signal control circuit break-make of internal-combustion engine rotational speed, the function of this two covers mechanism is finished automatically by a simple centrifugal globe mechanism.

Thereby can simplify the internal structure of an organization, reduce cost.

Following embodiment with regard to the actuating and generating device 250 of equipment on the two stroke IC engine 200 illustrates explanation on Figure 18.

But two stroke IC engine 200 is on the synthetic crankcase 202 of the left and right sides housing of the bent axle 201 that points to the left and right horizontal direction at free rotary ground supporting to make up Shanghai Automobile Factory's cylinder body 203 successively, cylinder head 204, on the cylinder block 203 that cold sink 203a is housed, except that figure goes up unshowned exhaust passageway, formed the ventilation path 205 that comes from scavenge port, and be connected with the crankshaft room on the crankcase 202, wherein scavenge port is opened on casing bore.

On cylinder head 204, igniter plug 206 towards the firing chamber setting-in, except the exposed division of igniter plug 206, guard shield 207 has covered cylinder head 204 and cylinder block 203.

From one of guard shield 207 left sides opening that the forms hot air duct 208 that extends out, lead to unshowned vaporizer on the figure, the warm braw of having been heated by cylinder block 203 is sent to vaporizer.

Left crankcase 202L double as belt type stepless change tank shell is being provided with the drive pulley 210 that can rotate together running through on the bent axle 201 that this left crankcase 202L extends out.

Drive pulley 210 is made of the half-pulley 210L of fixed side and the half-pulley 210R of movable side.Fixed side half-pulley 210L is fixed in the left part of bent axle 201 by wheel hub 211; And there is movable side half-pulley 210R resilient engagement on its right side on bent axle 201, can be toward or away from fixed side half-pulley 210L, two half-pulley 210L, and the clamping volume is hung V-shape belt 212 between 210R.

The right side of movable side half-pulley 210R has cam disk 215 to be fixed on the bent axle 201, can be incorporated into the cam disk slip boss 210Ra of portion that the outer circumference end of movable side half-pulley 210R forms vertically at the slider 215a of its outer circumference end setting with being free to slide.

The side of cam disk 215 1 sides of movable side half-pulley 210R forms the conical surface towards cam disk 215 1 sides, and deadweight roller 216 is being placed in this conical surface inboard and 215 clampings of cam disk.

Thereby, increase along with crankshaft rotating speed, movable side half-pulley 210R places with 215 of cam disks and the weight roller 216 of rotation moves to centrifugal direction by centrifugal force, movable side half-pulley 210R is moved to left by these weight roller 216 pushings, near fixed side half-pulley 210L, the V-shape belt 212 of clamping between two half-pulley 210L, 210R moves to centrifugal direction, and volume is hung diameter and become big.

Corresponding with this drive pulley 210, also to roll up on the negative pulley wheel of (not shown) in the wings and hang with V-shape belt 212, power reaches rear reduction gear mechanism after adjusting automatically, reach trailing wheel by reducing gear again.

Cover the transmission housing lid 220 of this belt type adjustable speed drive chamber from the left side, rearward extend the topped past from the drive pulley 210 in the place ahead; Forward edge also runs through with rotating freely and is supporting recoil axle 221, helical gear 222 at inner end setting-in of this recoil axle 221, gives elastic force by Returnning spring 223.

Front interior in transmission housing lid 220, supporting rotatable and can slide vertically, the sliding axle 224 coaxial with bent axle 201, on this sliding axle 224, form passive helical gear 225, and be meshed with aforementioned driving helical gear 222, simultaneously, fixing ratchet 226 at its right-hand member, wholely giving elastic force left by friction spring 227.

In addition, on the wheel hub 211 of bent axle 201 1 sides, form ratchets facing to ratchet 226, both by the slip of sliding axle 224 can implement to connect from.

Therefore, one steps on kickpedal, and recoil axle 221 promptly overcomes the elastic force rotation of Returnning spring 223; Drive helical gear 222 with 221 rotations of recoil axle; Rotate with sliding axle 224 on one side with its passive helical gear that is meshed 225, Yi Bian overcome the friction spring resistance to right-hand slip; Ratchet 226 is meshed with the ratchet of wheel hub 211, forces bent axle 201 rotations, and internal-combustion engine 200 can start.

On the other hand, but right crankcase 202R slightly become cylindricly to extend out on the right side that free rotary ground supporting the main bearing 209 of bent axle 201; Given prominence to bent axle 201 from its center.

In the cylinder of this right crankcase 202R, disposing described actuating and generating device 250.

Inner rotator 251 is, has rotor hub 252 to be matched with bent axle 201 to right-hand projection, and tightens up with nut 253; It is cylindric that this rotor hub slightly becomes, within it side diameter reduction is slightly arranged the 252a of small diameter cylinder portion; Periphery 6 place's setting-ins in its large diameter cylinder portion magnet 254.

Periphery at the 252a of small diameter cylinder portion of this rotor hub 252 is tapered, to the speed regulator shell 255 that left is opened, its inboard peristome is fixedly set on the rotor hub 252 by rivet 256.

This speed regulator shell 255 has formed 6 grooves of points in axial direction on the taper inner peripheral surface; Corresponding to the outer openings edge of each groove, to remain silent bending and extending out of axle.

On the other hand, on the side face of the 252a of small diameter cylinder portion of rotor hub 252, cooperating speed regulator inner casing 258 about can be vertically with being free to slide.This speed regulator inner casing 258 has formed the recess 259 of opening laterally in 6 position bulgings of its cylindrical part periphery, and the diapire of this recess 259 is inclined to taper.

In this recess 259, be placed with Metal Ball 260, stopped up recess 259 and be positioned on the conical surface wall of aforementioned speed regulator shell 255.

Moreover, the part of the cylindrical part of speed regulator inner casing 258 is many linking department 258a extending to form of direction to the left and right, the large diameter cylinder portion of running through rotor hub 252, the right side of rotor hub 252 vertically can about fixing its end on the brush carrier 262 that supporting with being free to slide, speed regulator inner casing 258 can slide with brush carrier 262.

Thereby, by the speed regulator inner casing 258 of spring to state shown in right-hand afterburning one-tenth Figure 18 solid line, rotational speed one increase along with inner rotator 251, ball 260 promptly moves to centrifugal direction along the tapered wall of speed regulator shell 255, the recess diapire of pushing speed regulator inner casing 258, promptly such shown in double dot dash line on Figure 18, be moved to the left with brush carrier 262.

Brush carrier 262 have with previous embodiment in the roughly the same structure of brush carrier 100.In the prominent brush 263 of establishing of assigned position, positive side brush is mutually by the conducting of positive side wire board at the right flank of brush carrier 262; The minus side brush is mutually by the conducting of minus side wire board.This point is also constructed identical with aforementioned embodiment.

Rectification stroma 265 corresponding to 262 configurations of this brush carrier also has same configuration with aforementioned rectification stroma 120, facing to disposing major diameter conduction road 266, commutator segment 267, minor diameter conduction road 268 with concentric circle on the face of brush carrier 262.

This rectification stroma 265 is being supported by the outer stator that is disposed at inner rotator 251 peripheries.

Outer stator 270 by on the yoke of stator coil 271 around power coil 272 constitute with actuating coil 273.Stator coil 271 fixed configurations in the cylinder of right crankcase 202R are on this right crankcase 202R.

The circuit diagram of the starting mechanism of this actuating and generating device 250 also structure shown in Figure 17 with previous embodiment is identical.

And bent axle 201 runs through rectification stroma 262, and further extends to the right, and its top is installed with forced air-cooling fan 280, and these forced air-cooling fan 280 right sides are provided with fan guard 281 and link to each other with guard shield 207.

The actuating and generating device 250 of equipment is made above-mentioned structure on this two stroke IC engine 200.When inner rotator 251 is rotated with bent axle 201, when it is in less than the regulation rotating speed of slow train rotating speed when following, speed regulator inner casing 258 and brush carrier 262 are shown in Figure 18 solid line and be in right-handly, and brush 263 and major diameter conduction road 266, commutator segment 267, minor diameter on the rectification stroma 265 conduct electricity road 268 and contact; And stipulate rotating speed in case surpass this, and by the effect of speed regulator, brush carrier 262 moves to left shown in the double dot dash line of Figure 18, and brush 263 promptly separates with major diameter conduction road 266, commutator segment 267, minor diameter conduction road 268.

Thereby, before this two stroke IC engine 200 will stop, because below the regulation rotating speed, the major diameter conduction road 266 on brush 263 and the rectification stroma 265, commutator segment 267, minor diameter conducted electricity road 268 and contact, initiate key is not pressed down, has only the 2nd closed-loop path conducting of actuating coil 273; Being rotated in of inner rotator 251 produces electromotive force in the actuating coil 273, actuating coil 273 is as power coil work, and electric current flows in the 2nd closed-loop path, and therefore, the braking moment that is produced by electromagnetic resistance acts on the inner rotator 152.

The counter-rotating of the bent axle 201 before will the stopping of two stroke IC engine braking moment for this reason stops.

In addition, when starting, press down initiate key, the 1st closed-loop path conducting, electric energy in the battery is supplied with actuating coil by brush 263 with major diameter conduction road 266, commutator segment 267, the contacting of minor diameter conduction road 268 of rectification stroma 265, and the electric current that flows in actuating coil 273 produces the running torque that makes the inner rotator rotation, make bent axle 201 rotations, make engine starting.

Thereby not needing to have realized special-purpose starter motor, saved the space, light weight, cost be low.

The present invention, the contact condition of commutator and brush before two stroke IC engine will stop, the 2nd junction closure, the 2nd closed-loop path conducting of having only actuating coil to constitute, being rotated in of rotor produces electromotive force in the actuating coil, electric current flows, and the braking moment that is produced by electromagnetic resistance acts on rotor, can stop the counter-rotating of bent axle.

Surpassed under the situation of regulation rotating speed arrival normal operation and arrive, actuating coil can not become any burden.

Do not need for preventing counter-rotating added force of inertia square on rotor, avoided the increase of the big and quality of the change of device; In addition, owing to utilized actuating coil, help the saving in space and the reduction of cost.

Connect the structure of disembarking owing to constitute brush with centrifugal automatic speed regulation mechanism, with simple mechanical formation can carry out aforementioned commutator that regulation rotating speed with two stroke IC engine is a benchmark and aforementioned brush connect from.

Owing to is relay contact with the 1st contact and the 2nd contact, implement the switching of this relay contact with the operation of switch starter, constitute switching mechanism with such relay mechanism, can make the simple switching mechanism of the electric energy driving that utilizes battery.

Claims (3)

1. the actuating and generating device of a two stroke IC engine is equipped with actuating coil, next to the actuating coil supply of electrical energy with contacting of commutator by brush in addition outside power coil, it is characterized in that it includes:

With the setting rotating speed that does not reach idling speed of two stroke IC engine be benchmark implement aforementioned brush and commutator connect from, aforementioned brush contact with commutator below setting rotating speed, connects the structure of disembarking above what the setting rotating speed promptly broke away from;

With connection (ON) operation of switch starter, the switching mechanism that the 1st junction closure, the 2nd contact are opened;

Aforementioned the 1st contact of by closure and contiguous aforementioned brush and commutator link up battery and aforementioned actuating coil the 1st closed-loop path of formation;

Aforementioned the 2nd contact of by closure only comprises the 2nd closed-loop path that aforementioned actuating coil forms with contiguous aforementioned brush and commutator.

2. the actuating and generating device of the two stroke IC engine of recording and narrating by claim 1, it is characterized in that: aforementioned brush connects the structure of disembarking and is made of centrifugal automatic speed governing device.

3. by the actuating and generating device of claim 1 or 2 two stroke IC engines of being recorded and narrated, it is characterized in that: aforementioned switches mechanism is to be relay contact with aforementioned the 1st contact and the 2nd contact, the operation of aforementioned switch starter is implemented the relay-set of this relay contact break-make.

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