常规动力潜艇的柴油机,担负着两个任务。一是水面或通气管状态(下称水下)航行(这可以通过直接带动螺旋桨或柴油机发电供电动机带动螺旋桨来实现),二是向蓄电池组充电。当潜艇还只是可以下潜的战斗舰艇时,柴油机的功率主要是满足潜艇的水面航速的需要,充电功率也可以得到保证,甚至还有剩余。当是,当潜艇逐渐由可以下潜的战斗舰艇变成为只在水下或主要在水下航行的潜艇时,柴油机的水面功率大小已不成为主要指标了,由于隐蔽 Diesel conventional power submarine, responsible for two tasks. First, the water or snorkel state (hereinafter referred to as underwater) navigation (which can be directly driven by the propeller or diesel engine power for the motor to propel the propeller), the second is to charge the battery pack. When the submarine is just a dive warship, the power of the diesel engine mainly meets the needs of the surface speed of the submarine. The charging power can also be guaranteed and there are even remaining. When the submarine was gradually being diverted from a destroying combat ship to a submarine that was only under water or primarily underwater, the size of the surface power of the diesel engine had not become a major indicator due to the concealment