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FUEL GAS INJECTION VALVE DUAL-FUEL GAS ENGINE AND FUEL GAS INJECTION METHOD
FUEL GAS INJECTION VALVE DUAL-FUEL GAS ENGINE AND FUEL GAS INJECTION METHOD
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机译：燃料喷射阀双燃料发动机和燃料喷射方法
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摘要
A nozzle (22) having a first hole (61) for injecting a fuel gas serving as a premix fuel and a second hole (62) for injecting a fuel gas serving as a diffusion fuel; A first needle valve 23 that reciprocates to freely slide along and opens and closes the first and second holes 61 and 62 and a needle valve seat A through hole 91 through which the first needle valve 23 is freely slidably inserted is formed in the central portion in the radial direction, and the nozzle 22 And shutting off the flow of the fuel gas to the first and second holes 61 and 62 when the sealing surface 94 is in contact with the needle valve seat 93, When the sealing surface 94 is separated from the needle valve seat 93, the first hole 61 or 2 bungong and a second needle valve (25) to permit the flow of fuel gas to 62. The
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