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汤姆洛克公司生产的RANGER系列和CHA系列露天钻机选用的发动机为美国Caterpillar公司的CAT3116系列柴油机。这种柴油机是该公司90年代初推出的环保型柴油机。它的燃油系统采用的是泵一喷咀喷射装置，燃油利用率和排放洁净性都有很大提高。装有这种柴油机的汤姆洛克露天钻机投人
The engine chosen for the RANGER series and CHA series open-air drilling rigs by Tom Lock Corporation is the CAT3116 series diesel engine from Caterpillar of the United States. This diesel engine is the company launched in the early 90s environmentally friendly diesel engine. Its fuel system uses a pump-jet injection device, fuel efficiency and cleanliness of the emissions have greatly improved. Tom Rock open-air drilling rig equipped with this diesel engine