Valve structure of carburator needle valve

A carburetor and valve technology, applied in carburetors, machines/engines, engine components, etc., can solve problems such as the impact of engine work, difficult processing, and increased production costs, achieving low production costs and good closing effect. , the effect of reducing processing requirements

Inactive Publication Date: 2007-01-17
郑光浩
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the closing effect of the valve, the surface precision of the conical rubber valve is also required to be extremely high, but the characteristics of the rubber material determine that the processing is not easy to guarantee
Due to the existence of many assembly relationships in the above-mentioned needle valve, the structure is complicated and the processing technology is cumbersome, so the accuracy is often difficult to guarantee. In addition, the defective rate is high, and the work failure is frequent, which increases the production cost and affects the engine work to a certain extent.

Method used

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  • Valve structure of carburator needle valve
  • Valve structure of carburator needle valve
  • Valve structure of carburator needle valve

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Embodiment Construction

[0009] The embodiment of the present invention is described in detail below in conjunction with accompanying drawing: comprise that valve body (1) is provided with same central axis and is connected with big hole (2), small hole (3), and the bottom of big hole (2) is placed with rubber valve Seat (4), rubber valve seat (4) is made by rubber casting, is provided with through hole (5) in the middle so that large hole (2) and small hole (3) are connected, and the cone that is provided with on through hole (5) The shape surface (7) is directly pressed by a precise mold. Compared with the assembly requirements of the copper valve seat, the processing technology of the rubber valve seat is much simpler, and the accuracy is easier to guarantee. The valve stem (6) is installed in the large hole (2). The valve stem (6) is a copper rod, and one end is directly turned into a tapered valve, which is not only easy to process but also easy to meet the requirements of precision. It is also e...

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Abstract

A valve structure of needle valve for carburetor relating to the improvement for structures of valve seat and piston in needle valve includes to set big hole and small hole which are connected through to each other on valve body, to erect valve seat made of rubber material in big hole, to erect valve stem in big hole with its one end being cooperated by cone piston and valve seat and the valve stem will be a copper processed piece. The needle valve designed by this invention has solved the problems of complication in fabricating the structural components to make copper sheathed valve seat and rubber cone piston mate to each other, high off-specification rate caused by difficult matching of structure so as to achieve the aim of low cost in production and simplicity in fabrication.

Description

(1) Technical field [0001] The valve structure of the carburetor needle valve of the present invention relates to the innovative invention of the valve seat structure. (2) Background technology [0002] In the current technology, the carburetor needle valve is provided with a large hole in the valve body, a copper valve seat is installed in the large hole, and a valve stem with a tapered rubber head valve is formed. Since the engine carburetor has very high quality requirements for the needle valve, there are strict requirements for the installation and coordination of each part of the needle valve, otherwise the needle valve switch will fail. Now the general copper valve seat is pressure riveted in the large hole of the valve body, so the machining accuracy of the outer circle of the copper valve seat and the machining accuracy of the large hole of the valve body are required to be very high, so as to ensure the cooperation between the two. The co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M19/03
Inventor 郑光浩
Owner 郑光浩
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