3500B and 3500 Marine Propulsion Engines with EUI Option Caterpillar

Engine Rating Definitions

Usage:

3508B 1TW

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注意

超过发动机额定功率来运转发动机会缩减发动机大修前的使用寿命。

表1对 3500 船用发动机的额定功率等级进行了定义。

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Table 1
船用发动机额定功率等级定义
额定功率等级	典型应用	典型年使用小时数	典型负荷系数	额定功率允许使用时间	中断或负载循环
连续作业 "A"级	水底拖捞船 ⁽¹⁾ 深河拖船 ⁽¹⁾ 货船 ⁽¹⁾ 拖船 ⁽¹⁾	5000 至 8000	80 至 100%	100%	否
中度作业 "B"级	勤务船渡船 ⁽²⁾ 中层水拖捞船围网渔船补给船拖船 ⁽²⁾	3000 至 5000	40 至 80%	80%	有些负载循环
间歇作业 "C"级	沿海货船渡船渔船 ⁽³⁾ 拖船(港口) 近海作业快艇(排水船体船只)	2000 至 4000	20 至 80%	50%	循环的发动机负载和转速
巡逻艇作业 "D"级	近海巡逻船 ⁽⁴⁾ 海关缉私船 ⁽⁴⁾ 警务船 ⁽⁴⁾ 救火船 ⁽⁴⁾ 巡航快艇 (平底船) 快速客船 ⁽⁴⁾ 渔船 ⁽³⁾ 船首/船尾推进器	1000 至 3000	直至 50%	16%	有些发动机满负荷和全转速。
高性能作业 "E"级	港口巡逻船 ⁽⁴⁾ 港口主调船 ⁽⁴⁾ 渔船 ⁽³⁾ 领航船 ⁽⁴⁾ 快艇 ⁽⁴⁾ 游艇 ⁽⁴⁾	250 至 1000	直至 30%	8%	极少的发动机满负荷和全转速。

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^( 1 )	重度作业
^( 2 )	船只因遇到船闸、沙坝和和弯曲航道须频繁减速。
^( 3 )	典型来讲，这类船从港口巡航出来又巡航回去时行驶得很快：螯虾船, 龙虾船和金枪鱼船
^( 4 )	典型来讲，这类船从港口巡航出来又巡航回去时以低负荷系数快速行驶。

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