Gas flow control valve for gas engine

Abstract

The invention discloses a gas flow control valve for a gas engine. The gas flow control valve comprises a body and a drive source arranged on the body. The body is provided with a gas inlet and a gas outlet. A valve body and a valve element which are in airtight contact are arranged in the body. The space in the body is divided by the valve body into a gas inlet chamber and a gas outlet chamber, the gas inlet chamber is communicated with the gas inlet, and the gas outlet chamber is communicated with the gas outlet. The valve element is arranged on the valve body in a penetrating manner. The upper end of the valve element is in contact with a core of the drive source, and the core can move vertically. The lower end of the valve element is connected with one end of a spring, and the other end of the spring is connected with the bottom of the air outlet chamber. The gas flow control valve is suitable for gas engines of various types, the gas output amount can be controlled and adjusted, constant and stable supply is achieved, so that the engine runs more stably, and the utilization rate of gas is higher. The service life is longer, the requirement of peripheral conditions is lower than that of a nozzle, and the overall cost is lower. The gas flow control valve is safe, reliable and good in sealing performance and has good market application value.

Description

Technical field [0001] The invention belongs to the technical field of gas engine gas systems, and specifically relates to a gas flow control valve for a gas engine with a controllable gas output and a stable flow. Background technique [0002] As a clean energy, natural gas has become an ideal alternative fuel for gas engines for vehicles, ships, and generator sets due to its good economy and low emissions, and has been widely used. However, existing gas engines mostly use gas nozzles to supply gas as key components of gas engine gas system products. At present, the domestic market mainly relies on imported products. The general-purpose direct-acting gas nozzles for gas engines have solenoid valve structure. The technical shortcomings of gas nozzles are: 1. Large opening current; 2. Low life; 3. Small gas flow; 4. Use in groups; 5. Factors such as gas quality have a great influence on product performance; 6. Poor reliability; 7. , The air is not continuous; 8. The manufacturing...

AI Technical Summary

Problems solved by technology

However, most of the existing gas engines use gas nozzles for gas supply. As the key components of gas engine gas system products, the domestic market mainly relies on imported products. The technical disadvantages of gas nozzles are: 1. Large opening current; 2. Low life; 3. Small gas flow; 4. Used in groups; 5. Factors such as gas temperament have a great influence on product performance; 6. Poor reliability; 7. , Discontinuous gas outlet; 8. High cost of manufacture and use

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