Spark ignition engine on the motor bike
The utility model relates to piston type internal combustion engine, relates to spark ignition engine, the spark ignition engine of using on particularly a kind of motor bike.
Existing two-wheeled motor vehicle has saddle ride type, and a formula is also arranged, the short safety of seat formula pedal motorcycle vehicle, it is comfortable to ride, convenient driving be the modern popular vehicle, but this vehicle adopts two-stroke gasoline engine mostly, because the limitation of its structure, the gasoline mixture that a part burns incompletely outside the discharge machine, causes blue or green cigarette to divert oneself from loneliness or boredom atmosphere pollution in scavenging process, consumption of fuel is strengthened, and usage charges increase.And four-stroke gasoline engine has remarkable advantages aspect oil consumption and the pollution, but its power-transfer clutch is the wet friction slice clutch, is subjected to structural limitations and can not be used for a formula pedal motorcycle.
The purpose of this utility model provides spark ignition engine on a kind of improved motor bike, and it partly combines two-stroke gasoline engine automatic centrifugal clutch and four-stroke gasoline engine heating power, can reduce oil consumption, reduces atmospheric contamination.
Spark ignition engine comprises casing on a kind of motor bike described in the utility model, cylinder head, carburettor, airfilter, magneto generator, air inlet pipe, freeing pipe, lubricating oil pump, piston, bent axle, and power-transfer clutch, described casing comprises left box body and right case, the limit lid is equipped with in the left box body outside; Described cylinder head is loaded on the casing front side, and valve is housed on the cylinder head, and the cold wind cover is equipped with in the cylinder head outside; Described carburettor is connected with airfilter, respectively is installed in the casing upside; Described magneto generator comprises rotor and stator, is installed in the right case right side, and cooling fan is housed on the magneto generator; One end of described air inlet pipe is connected with carburettor, and the other end is connected with cylinder head, and air inlet pipe is positioned at the casing upside; Described freeing pipe is connected with cylinder head, and freeing pipe is positioned at bottom half; Described lubricating oil pump is installed in the right case right side; On the described piston crankshaft-link rod is housed; Described bent axle is connected with crankshaft-link rod, and the right-hand member of bent axle is installed magneto generator and lubricating oil pump, and the left end of bent axle is installed power-transfer clutch; Described power-transfer clutch comprises timing sprocket and the driving wheel that is installed in the bent axle left end, and the flower wheel that is installed in rear portion, casing left side, timing sprocket is in transmission connection with oil pump gear by timing chain, driving wheel is connected by belt-driving with flower wheel, flower wheel drives the rear axle that trailing wheel is housed, and rotates thereby drive trailing wheel.
The utility model had both had the advantage of four-stroke gasoline engine heating power part, the advantage that also has the double stroke automatic centrifugal clutch, melt the two in one, be applicable to seat formula pedal motorcycle or the motor-tricycle of free air capacity at 〉=50cc-≤100cc, the mini-motorcycle, motor bike and the motor-tricycle that are particularly useful for 36cc-100cc, oil consumption is few, pollutes light.
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is that the master of spark ignition engine on a kind of motor bike looks scheme drawing.
Fig. 2 is the inner structure birds-eye view of above-mentioned spark ignition engine.
Fig. 3 is the right case left side view of above-mentioned spark ignition engine.
Fig. 4 is the right case right side view of above-mentioned spark ignition engine.
Fig. 5 is the left box body left side view of above-mentioned spark ignition engine.
Fig. 6 is the left box body birds-eye view of above-mentioned spark ignition engine.
Fig. 7 is the limit lid scheme drawing of above-mentioned spark ignition engine.
Fig. 8 is by birds-eye view shown in Figure 7.
Fig. 9 is the bent axle scheme drawing of above-mentioned spark ignition engine.
Referring to Fig. 1 to Fig. 9, spark ignition engine comprises casing 1 on a kind of motor bike, cylinder head 2, carburettor 3, airfilter 4, magneto generator 5, air inlet pipe 6, freeing pipe 7, lubricating oil pump 8, piston 9, bent axle 10, and power-transfer clutch 11.
Casing 1 is divided into left box body 12 and right case 13.Limit lid 14 is equipped with in left box body 12 outsides.Lubricating oil pump 8 and magneto generator 5 are equipped with in right case 13 right sides, and rotor 15 and stator 16 are housed on the magneto generator 5, and cooling fan 17 is installed on the magneto generator 5.
Cylinder head 2 is installed in casing 1 front side.Valve 18 is housed on the cylinder head 2, and cold wind cover 19 is equipped with in cylinder head 2 outsides.
Carburettor 3 is connected with airfilter 4, respectively is installed in casing 1 upside.Carburettor 3 is connected with an end of air inlet pipe 6, and the other end of air inlet pipe 6 then is connected with cylinder head 2, and air inlet pipe 6 is positioned at casing 1 upside.Freeing pipe 7 is equipped with in casing 1 bottom, and freeing pipe 7 is connected with cylinder head 2.
Piston 9 is installed in the cylinder head 2, and crankshaft-link rod 20 is housed on the piston 9, and crankshaft-link rod 20 is connected with bent axle 10.The right-hand member of bent axle 10 is installed magneto generator 5 and lubricating oil pump 8, and the left end of bent axle 10 is installed power-transfer clutch 11.
Power-transfer clutch 11 comprises timing sprocket 21 and the driving wheel 22 that is installed in bent axle 10 left ends, and the flower wheel 23 that is installed in rear portion, casing 1 left side.Timing sprocket 21 is in transmission connection with oil pump gear by timing chain, and driving wheel 22 is in transmission connection by belt 24 with flower wheel 23, and flower wheel 23 drives the rear axle 25 that trailing wheel 24 is housed, and rotates thereby drive trailing wheel 24.
The outside of left box body 12 is positioned at cylinder head 2 outsides vent window 26 is housed.
The utility model is installed on the motor bike, when foot-operated pedal rod 27 or hand were pressed a button the starter motor starting, crankshaft revolution drove magneto generator running generating, passes through spark plug sparking, light carburetion mixture, make the piston motion work done from airfilter and carburettor.Crankshaft revolution drives timing sprocket, and timing sprocket is done regularly to open and close by the inlet and exhaust valve on the timing chain control cylinder head, finishes air inlet, compression, burning, four strokes of exhaust.The piston work done drives the trailing wheel running by the self-acting clutch horsepower output that is installed in the bent axle left end.