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Separate-controlled carburetor applicable to intelligent control

A technology of carburetor and oil needle, applied in the direction of machines/engines, etc., can solve the problems of large fluctuations in oil intake, affect control accuracy, impact and friction, etc., achieve low implementation cost, save fuel and discharge, and improve service life Effect

Inactive Publication Date: 2012-04-18
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The gap between the gear and the rack and the gear itself lead to low precision of this method;
[0005] 2. Since the mechanisms for pulling the oil needle and the throttle valve are all concentrated in one tube, there is mutual influence and friction between them, and they are easy to wear;
[0006] 3. Due to the influence of negative pressure, the oil intake fluctuates greatly, which affects the control accuracy

Method used

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  • Separate-controlled carburetor applicable to intelligent control
  • Separate-controlled carburetor applicable to intelligent control
  • Separate-controlled carburetor applicable to intelligent control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 Is a schematic structural diagram of Embodiment 1 of the present invention, figure 2 for figure 1 Top view of Figure 5 for figure 1 A partial enlarged view of A, Image 6 Is a schematic diagram of the structure of the cable roulette, Figure 7 Is the structural diagram of the idle speed adjusting screw part, Picture 8 for Figure 7 AA cross-sectional view, as shown in the figure: the sub-control carburetor suitable for intelligent control of this embodiment includes a main body 1, a float chamber 2, a throat pipe 3 arranged on the main body 1, and a throat pipe 3 The throttle valve, the main nozzle 4 which is arranged on the body 1 and connects the float chamber 2 and the throat 3, and the oil needle 5 whose tip is inserted into the main nozzle 4, and also includes a throttle stepper motor 6, an oil needle stepper motor 7 , Throttle spring 8 and oil needle spring 9, the body 1 is also provided with a valve cylinder tube 1a and a throttle cylinder tube 1b that ...

Embodiment 2

[0035] image 3 Is a schematic structural diagram of Embodiment 2 of the present invention, Figure 4 for image 3 The top view of the carburetor, as shown in the figure: The sub-control carburetor suitable for intelligent control of this embodiment is mainly applied to large-displacement engines. Compared with embodiment 1, the idle speed adjustment screw is removed because of its structure. The large-displacement engine requires a large amount of air intake to adjust during idle speed adjustment, and the change range of the amount of air intake that can be adjusted by the idle speed adjustment screw is relatively small. Therefore, in this embodiment, the throttle stepping motor directly controls the throttle valve rise. To realize the adjustment of the air intake at idling speed, there is no need to set the idling adjustment screw to adjust.

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Abstract

The invention discloses a separate-controlled carburetor applicable to intelligent control, which comprises a main body, a choke, an air throttle, a main spray pipe, an oil needle, an air throttle stepping motor, an oil needle stepping motor, an air throttle stay wire and an oil needle stay wire. In the invention, the air throttle stepping motor and the oil needle stepping motor control the opening of the air throttle and the lift range of the oil needle through the air throttle stay wire and the oil needle stay wire respectively; when in use, the air throttle stepping motor and the oil needle stepping motor are connected with an electronic control unit of the motorcycle carburetor to carry out fine and independent control on gas supply quantity and oil supply quantity respectively according to an instruction of the electronic control unit of the carburetor so as to generate different air-fuel ratio so that an engine outputs proper torque and revolving speed, thus achieving the effects of saving oil and lowering emission; the stay wires replace the existing gear and rack mechanism, thus effectively avoiding influence of clearance among the gears on control accuracy; and the flexible characteristics of the stay wires can also prevent the moving parts pulled by the stay wires from eccentric wear, thus effectively lowering wear and prolonging the service life of the carburetor. Meanwhile, the carburetor has simple structure and low implementation cost.

Description

Technical field [0001] The invention relates to a carburetor, in particular to a sub-control carburetor suitable for electronic control and suitable for intelligent control. Background technique [0002] The function of the motorcycle carburetor is to mix a certain amount of gasoline with air to make the engine run normally. The air-fuel ratio of ordinary carburetor is fixed for a specific working condition. If you want to change its value, you must adjust the structural parameters, but the adjustment of structural parameters will inevitably affect the air-fuel ratio of other working conditions. The structural parameters of ordinary carburetor The oil needle and synchronous linkage can not achieve the air-fuel ratio to fully meet the needs of each operating point. The electronically controlled carburetor is obtained by electronically controlled transformation on the basis of the traditional carburetor. The air-fuel ratio of the electronically controlled carburetor system is adj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M7/14F02M7/24
Inventor 薛荣生郝允志周黔
Owner SOUTHWEST UNIV
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