Engine fuel valves system

The utility model discloses an engine fuel valves system, include that cue ball valve, several pressure sensor, temperature sensor, several fill lazy valve, air -vent valve, several stop valve, several bleeder valve, flowmeter and gaseous fuel detection sensor, gaseous fuel air feed unit output links to each other with the engine input with cue ball valve, filter, air -vent valve, first stop valve, second stop valve, flowmeter through main connecting tube in proper order, a pressure sensor, temperature sensor and one fill lazy valve one end and connect respectively between filter and air -vent valve input, and the 2nd pressure sensor sets up between first stop valve and second stop valve, several bleed -off circuit one end links to each other with main connecting tube respectively. The utility model discloses integrated level height, compact structure, safe and reliable, the gaseous fuel that can supply with steady pressure gives the engine.