Gas valve matched with fuel

Abstract

The invention relates to a gas valve matched with fuel oil, comprising a valve fixing plate, on which a gas valve and a carburetor are fixed side by side, and the gas valve and the carburetor are used together; Switch diaphragm assembly, spring, valve body, conversion shaft, fixed pin, elastic positioning rod, throttle shaft positioning plate, throttle assembly, gas speed control rod, sliding fixed piece, decompression diaphragm assembly, decompression diaphragm Seat and negative pressure pipe; by connecting the gas speed regulating rod and carburetor speed regulating rod with a sliding fixed piece, the two speed regulating rods are displaced synchronously, and the engine discharge is better; by setting the anti-sealing switch diaphragm assembly , when the power (that is, the engine) does not work or the power fails and shuts down, it can ensure the safety of the gas source without leakage, and at the same time, the starting performance is better; the invention has a clear structure and distinct layers.

Description

technical field [0001] The invention relates to a component part of an engine, in particular to a general gas valve suitable for supplying gas from different gas sources adopted by a small general power, and belongs to the technical field of small general engines. Background technique [0002] The oil-gas supply device of the small general-purpose engine of the prior art generally adopts the gas supply of an external gas decompression device on the basis of the carburetor oil supply, and the device can only be provided with a single fuel. Therefore, when using different gas sources (such as natural gas, biogas, etc.), corresponding decompression devices must be configured separately, which causes a lot of inconvenience in its use. [0003] At the same time, the traditional gas decompression device will produce gas source leakage when the engine does not work or fails to shut down the gas source in time; moreover, after decompression, it can only directly supply gas to the en...

AI Technical Summary

Problems solved by technology

[0002] The oil and gas supply device of the small general-purpose engine of the prior art generally adopts a gas decompression device externally connected on the basis of the carburetor to supply the gas, and the device can only be provided with a single fuel

Therefore, when using different gas sources (such as natural gas, biogas, etc.), the corresponding decompression device must be configured separately, causing a lot of inconvenience in its use

[0003] At the same time, the traditional gas decompression device will produce gas source leakage when the engine does not work or fails to shut down the gas source in time; moreover, after decompression, it can only directly supply gas to the engine, and the power performance and emissions of the engine cannot be effectively controlled

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