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一、结构特点 1190NT天然气发动机是一种以天然气为燃料的四冲程内燃机(图1)。它的活塞、连杆、汽缸套等与190柴油机的通用,其主要用途是驱动抽油机。 1.机体主轴承座孔为隧道式,曲轴可从皮带轮端抽出,在飞轮端的机体端面装有齿轮系,齿轮箱盖上装有磁电机。在皮带轮端的曲轴上,装有启动齿圈和风扇皮带轮(主动轮)以及皮带轮离合器。为防止排高温造成排气阀座磨损快,在缸盖上镶有排气阀座圈。
First, the structural characteristics 1190NT natural gas engine is a natural gas-fueled four-stroke internal combustion engine (Figure 1). Its piston, connecting rod, cylinder liner and 190 diesel common, its main purpose is to drive the pumping unit. 1. The body main bearing hole is tunnel type, the crankshaft can be pulled out from the pulley end, the gear end is equipped with a gear train on the end of the flywheel end, and the gearbox cover is equipped with a magneto. On the pulley end of the crankshaft, equipped with starter ring and fan pulley (capstan) and the pulley clutch. Exhaust valve seat to prevent exhaust heat caused by wear fast, set in the exhaust valve seat ring on the cylinder head.