Power-improved diaphragm type carburetor

A diaphragm type carburetor and carburetor technology, applied in carburetors, engine components, machines/engines, etc., can solve problems such as poor oil supply of carburetors, achieve good control and reduce deformation , to avoid the effect of cracking

Active Publication Date: 2017-12-12
郑节昭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the above deficiencies, providing a power-improved diaphragm carburetor, which utilizes the negative pressure generated when the engine is working to realize oil intake, and the negative pressure regulating device is horizontally arranged on the lower part of the carburetor body, so that The parts of the negative pressure adjustment device located on the side of the fuel injection chamber are evenly immersed in the fuel oil in the fuel injection chamber, so as to avoid local deformation of the parts due to different degrees of oil corrosion, which will cause problems such as poor fuel supply to the carburetor

Method used

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Experimental program
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Effect test

Embodiment 1

[0038] Such as Figure 1-7 As shown, a power-improved diaphragm carburetor provided by the present invention includes a carburetor body 1, and the upper body of the carburetor body 1 is provided with an air intake passage 1- 6. The air intake channel 1-6 is sequentially provided with a choke device 4 that can be rotated to adjust the intake air volume, a throat pipe 1-10 that can be rotated to adjust the volume of mixed gas in the air intake channel 1-6. The throttle device 3, the lower side of the carburetor body 1 is provided with a fuel injection chamber 1-3 for storing fuel, and the carburetor body 1 is provided with a fuel injection chamber 1-3 to facilitate the fuel injection in the fuel injection chamber 1-3. The fuel injection passage in the air passage 1-6, the lower part of the carburetor body 1 is equipped with a negative pressure adjustment device 2 for controlling the fuel tank to enter the fuel injection chamber 1-3, and the negative pressure adjustment device 2 ...

Embodiment 2

[0050] Such as Figure 8 , Figure 9 As shown, the difference between the second embodiment and the first embodiment is that the diaphragm 2-3 includes a sealing gasket 2-3-5 and a diaphragm three 2-3-8 arranged sequentially from top to bottom. The first notch 2-3-2 and the second notch 2-3-4 penetrate the sealing gasket 2-3-5 and the diaphragm three 2-3-8, the first movable valve 2-3-1 and the second movable valve The valve 2-3-3 is arranged on the diaphragm three 2-3-8.

Embodiment 3

[0052] Such as Figure 10 As shown, the difference between the third embodiment and the first embodiment is that the throttle valve 3-2 is controlled by a stepping motor, and the choke valve 4-2 is automatically controlled by a torsion spring connected with the rocker arm 3-3 of the throttle shaft. When the throttle valve 3-2 was fully opened, the choke valve 4-2 was also fully opened. Otherwise the throttle valve 3-2 is closed or the opening degree is small, and the choke valve 4-2 is also closed or the opening degree is small.

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Abstract

The invention relates to a power improved diaphragm type carburetor. The power improved diaphragm type carburetor comprises a carburetor body, and the upper part of the carburetor body is internally provided with an air inlet passage penetrating the carburetor body; the air inlet passage is internally provided with a choke valve device which can rotate to adjust the air inlet amount, a throat pipe used for accelerating the air flowing speed and a throttle valve device which can rotate to adjust the mixed air amount in the direction of air inlet in sequence; the lower side surface of the carburetor body is provided with a fuel injection cavity for storing fuel, and the carburetor body is internally provided with a fuel injection channel which facilitates fuel in the fuel injection cavity to be injected into the air inlet passage; and the lower part of the carburetor body is provided with a negative pressure regulating device used for controlling the oil tank to feedthe fuel into the oil injection cavity, and the negative pressure regulating device is arranged below the fuel injection cavity. The power improved diaphragm type carburetor adopts the horizontally-arranged negative pressure regulating device, so that a negative pressure elastic membrane is uniformly covered by fuel, severe local damaging caused by different oil corrosion degree of the negative pressure elastic membrane is prevented, and the fact that the problem of poor oil supply quality of the carburetor is generated due to changing of the physical property when the negative pressure elastic membrane is deformed is avoided.

Description

technical field [0001] The invention relates to the technical field of carburetors, in particular to a power-improved diaphragm carburetor, which is suitable for all general-purpose small gasoline engine power (such as: power generation, water pumps, micro tillers, snowplows, etc.), especially suitable for It is used in the range-extending power engine of the battery car. Background technique [0002] As a precision mechanical device, the carburetor uses the kinetic energy of the inhaled air flow to realize the atomization of gasoline. Specifically, it is a mechanical device that mixes a certain proportion of gasoline with air under the vacuum generated by the engine. Its important role in the engine can be called the "heart" of the engine. According to the requirements of different working conditions of the engine, the carburetor will match the corresponding concentration through mechanical debugging, and output the corresponding amount of mixed gas. [0003] Common carbu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M17/04F02M1/02
CPCF02M1/02F02M9/121F02M17/04
Inventor 郑节昭雷祥雨许文清
Owner 郑节昭
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