Automotive LNG (liquefied natural gas) liquid-phase flow limiting valve
A flow-restricting valve and flow-restricting technology, applied in the field of vehicle LNG, can solve the problems of detachment of joints, large flow error, unstable gas supply, etc., and achieve the effect of avoiding a large number of rapid leakage, long service life and improving safety.
Inactive Publication Date: 2013-09-25
DANYANG FEILUN GAS VALVE
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Abstract
The invention discloses an automotive LNG (liquefied natural gas) liquid-phase flow limiting valve which mainly comprises a valve body, a liquid-outlet joint and a flow limiting component. One end of a flowing passage of a flow limiting component body is of a liquid outlet end, a spring mount is arranged at the liquid outlet end, a spring is mounted on the spring mount, a flow limiting ball is mounted on the spring, a lower flow limiting bearing block is arranged at the other end of the flowing passage, an emergent cutoff liquid inlet is arranged on the lower flow limiting bearing block, an upper flow limiting bearing block is arranged on one side of the flow limiting ball close to the liquid outlet end, a moving cavity for the flow limiting ball to move is formed between the lower flow limiting bearing block and the upper flow limiting bearing block, the diameter of the section of the flowing passage at the lower flow limiting bearing block and the upper flow limiting bearing block is smaller than that of the flow limiting ball, at least one liquid inlet is formed in the side wall of the moving cavity and is communicated with the moving cavity, and a balance hole is formed in the side wall of the liquid outlet end to run through the flow limiting component body. The automotive LNG liquid-phase flow limiting valve is firm in structure, not easy to damage, long in service life, high in safety and good in flow limiting effect.
Application Domain
Equalizing valvesSafety valves
Technology Topic
Natural gas fuelLiquefied natural gas +2
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