A kind ofly be applicable to electronically controlled division control type Carburetor
Technical field
The present invention relates to Carburetor, be specifically related to a kind of electronically controlled division control type Carburetor that is applicable to.
Technical background
The inflammable mixture of motorcycle engine begins to form in Carburetor.Carburetor mainly is made up of four parts such as float chamber, trunnion and jet pipe, main jet, closures.The situation of motorcycle when travels down is changeable, generally can be divided into starting, idling, middle load and four working conditions of loading greatly.The variation of working condition mainly shows as the continuous variation of travelling speed and running resistance.This variation directly affects the rotating speed and the load of motor again, often changes to maximum speed by minimum stable engine speed, and load changes to maximum by zero, and this variation require sometimes very fast, to adapt to the needs of motorcycle driving.For example, before the motorcycle starting, engine speed is minimum, peels tires, and promptly closure is by being closed to standard-sized sheet, and engine speed raises rapidly.To this situation complicated and changeable, simple Carburetor is inefficient.A perfect Carburetor, its effect is not only the formation inflammable mixture, the more important thing is and can supply with the inflammable mixture of variable concentrations in time, quantitatively, exactly according to the various working conditions of motor.At present, the various Carburetors that use on the motorcycle, its closure is connected with handle by steel cable with throttle, by the driver Joystick or/and the size of footstep mechanism control throttle and the aperture of closure, the concentration of the needed inflammable mixture of motor is to rely on the sensation of driver and experience to regulate, be difficult to accomplish various working conditions, supply with the inflammable mixture of variable concentrations in time, quantitatively, exactly according to motor.In order to adapt to the high request of fuel economy and runnability, and the requirement of exhaust emissions regulation, before and after the eighties, on automobile, adopted carburetor-electronically controled.This Carburetor also is provided with closure and chock plate final controlling element except the basic structure that possesses commonly usedization device; The closure final controlling element is a push rod, controls the aperture of closure by solenoid-driven, to satisfy the requirement of motor inflation under the different operating modes; The chock plate final controlling element also is an electromagnetic element, by the aperture of control chock plate, to adapt to motor changes the combustion ratio under difference running operating mode requirement.Electron controls technology will be applied on engine and carburetor of motorcycle, must change the structure of Carburetor on the existing motorcycle engine.
Summary of the invention
The purpose of this invention is to provide a kind of electronically controlled division control type Carburetor that is applicable to, it can drive closure, throttle respectively or simultaneously, be suitable for mating with the motorcycle electric control gear, and, supply with the inflammable mixture of variable concentrations in time, quantitatively, exactly according to the instruction of sending.
A kind of electronically controlled division control type Carburetor that is applicable to of the present invention, comprise body, be connected the body bottom float chamber, be located at float in the float chamber, be located at its lower end in the body vertical tube and vertically stretch into the closure of trunnion, be located at the main jet pipe of bottom in the body and be connected the main jet of its lower end, it is characterized in that:
Be provided with a through hole at the center of closure, this hole cooperates with the spindle adjustable lever, the lower end of the spindle adjustable lever spindle interior with inserting the main jet pipe is connected, the top of spindle adjustable lever is tooth bar, pass and first gear engagement from the motor cabinet that is connected the body upper end, the output shaft of first gear and first stepper motor is connected.Adopt this structure, can make spindle, be the adjusting of throttle and asynchronous the carrying out of adjusting of closure, adapt to motor requirement to air fuel ratio under difference running operating mode more; The stepper motor motorcycle controller that drives the spindle adjustable lever is connected, be convenient to realize electronic control.
Be connected with a throttle adjustment bar on the next door on closure central through bore top, the top of throttle adjustment bar is tooth bar, passes and second gear engagement from the motor cabinet that is connected the body upper end, and the output shaft of second gear and second stepper motor is connected.The stepper motor that drives the throttle adjustment bar is connected with the motorcycle controller, is convenient to realize electronic control.
Between the step of spindle adjustable lever bottom and motor cabinet, be provided with the spindle spring, can make the tooth bar and the first gear tight engagement on spindle adjustable lever top, drive steadily.Between closure and motor cabinet, be provided with two closure springs, can make the tooth bar and the second gear tight engagement on throttle adjustment bar top, drive steadily.
The present invention with the basis of the structure of existing Carburetor and working principle on, with manual backguy, be the aperture that steel cable is regulated closure and throttle, change into by the step motor drive gear and with the tooth bar of its engagement and regulate, be convenient to be connected, realize motorcycle engine is supplied with in time, quantitatively, exactly the electronic control of the inflammable mixture of variable concentrations with the motorcycle controller; Closure and throttle adopt independently controlling mechanism to adjust respectively, adapt to motor requirement to air fuel ratio under difference running operating mode more; Compact structure, control accurately can significantly improve the Economy and the runnability of motorcycle engine, alleviate the pollution of discharge tail gas to environment.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the schematic representation that closure of the present invention and throttle are in maximum opening.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, spindle adjustable lever 9 to be packed in the central through bore of closure 6, the lower end of spindle adjustable lever is connected with spindle 10, and spindle inserts in the main jet pipe 7; Spindle spring 17 is contained between the step and motor cabinet 11 of spindle adjustable lever 9 bottoms, the tooth bar on the top of spindle adjustable lever, pass and 12 engagements of first gear from the motor cabinet 11 that is connected the body upper end, the output shaft of first gear and first stepper motor 13 is connected, and the model of stepper motor is 24BY48;
The closure 6 that the center is provided with a through hole is packed in the body vertical tube 4, and its lower end is vertical with trunnion 5; Throttle adjustment bar 14 is connected the next door on closure central through bore top, and two closure springs 18 are installed between closure 6 and the motor cabinet 11, the tooth bar on the top of throttle adjustment bar passes and 15 engagements of second gear from the motor cabinet 11 that is connected the body upper end, the output shaft of second gear and second stepper motor 16 is connected, and the model of stepper motor is 24BY48;
Float 3 is installed in the float chamber 2, main jet 8 is connected the lower end of the main jet pipe 7 of bottom in the body, the bottom that float chamber is connected body 1 gets final product.
During use, the present invention is contained on the motorcycle engine, first stepper motor that drives the spindle adjustable lever is connected with the motorcycle controller, second stepper motor that drives the throttle adjustment bar is connected with the motorcycle controller, can be applicable to electronically controlled requirement.