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1 问题的提出 DF4B型机车柴油机极限调速器是柴油机超速保护装置。当柴油机转速上升到1120～1150r min时,极限调速器就发生作用,通过左、右拉杆将喷油泵齿条拉回到零刻线,强迫停机。2000年在柴油机台架试验和机车试运途中多次发生柴油机转速未到1000r min极限调速器就动作?
1 The issue put forward DF4B locomotive diesel engine speed limiter is speeding protection device. When the diesel engine speed rises to 1120 ~ 1150r min, the limit governor takes effect. Through the left and right rod, the fuel pump rack will be pulled back to the zero line to force the machine to stop. In 2000 diesel engine bench test and locomotive trial occurred many times diesel engine speed is less than 1000r min limit governor action?