喷油嘴 (Fuel Injector)
Location: Cylinder Head (气缸盖 - Qìgāng gài)
Description: Delivers fuel to the combustion chamber. (将燃油输送到燃烧室 - Jiāng rányóu shūsòng dào ránshāoshì)
Example: 卡特彼勒 (Caterpillar) C7 Engine Fuel Injector, Part Number: 249-0713
机油滤清器 (Oil Filter)
Location: Engine Block (发动机缸体 - Fādòngjī gāngtǐ), usually mounted externally.
Description: Removes contaminants from engine oil. (从发动机油中去除污染物 - Cóng fādòngjī yóu zhōng qùchú wūr染wù)
Example: 卡特彼勒 (Caterpillar) 3406 Engine Oil Filter, Part Number: 1R-0739
水泵 (Water Pump)
Location: Front of Engine Block (发动机缸体前部 - Fādòngjī gāngtǐ qiánbù)
Description: Circulates coolant to regulate engine temperature. (循环冷却液以调节发动机温度 - Xúnhuán lěngquèyè yǐ tiáojié fādòngjī wēndù)
Example: 卡特彼勒 (Caterpillar) C9 Engine Water Pump, Part Number: 249-5341
空气滤清器 (Air Filter)
Location: Air Intake System (进气系统 - Jìn qì xìtǒng), usually in a housing.
Description: Filters air entering the engine to prevent dust and debris from causing damage. (过滤进入发动机的空气,防止灰尘和碎屑造成损坏 - Gu滤 jìnrù fādòngjī de kōngqì, fángzhǐ huīchén hé suì xiè zàochéng sǔnhuài)
Example: 卡特彼勒 (Caterpillar) C15 Engine Air Filter, Part Number: 6I-2503
曲轴 (Crankshaft)
Location: Inside the Engine Block (发动机缸体内部 - Fādòngjī gāngtǐ nèibù), supported by main bearings.
Description: Converts reciprocating motion of pistons into rotational motion. (将活塞的往复运动转化为旋转运动 - Jiāng huósài de wǎngfù yùndòng zhuǎnhuà wéi xuánzhuǎn yùndòng)
Example: 卡特彼勒 (Caterpillar) 3516 Engine Crankshaft, Part Number: 216-5478
活塞 (Piston)
Location: Inside Cylinders (气缸内部 - Qìgāng nèibù), moving within the cylinder bore.
Description: Moves up and down in the cylinder to compress air and receive force from combustion. (在气缸内上下移动,压缩空气并接收燃烧力 - Zài qìgāng nèi shàngxià yídòng, yāsuō kōngqì bìng jiēshōu ránshāo lì)
Example: 卡特彼勒 (Caterpillar) C6.4 Engine Piston, Part Number: 297-8755
气门 (Valve)
Location: Cylinder Head (气缸盖 - Qìgāng gài), controlling intake and exhaust ports.
Description: Controls the flow of intake air and exhaust gases into and out of the cylinder. (控制进气和废气流入和流出气缸的流量 - Kòngzhì jìn qì hé fèiqì liúrù hé liú chū qìgāng de liúliàng)
Example: 卡特彼勒 (Caterpillar) C4.4 Engine Valve, Part Number (Intake): 352-0204
连杆 (Connecting Rod)
Location: Connecting Piston to Crankshaft (连接活塞和曲轴之间 - Liánjiē huósài hé qūzhóu zhī jiān)
Description: Transmits force from the piston to the crankshaft. (将力从活塞传递到曲轴 - Jiāng lì cóng huósài chuándì dào qūzhóu)
Example: 卡特彼勒 (Caterpillar) 3306 Engine Connecting Rod, Part Number: 8N-1720
凸轮轴 (Camshaft)
Location: Cylinder Head or Engine Block (气缸盖或发动机缸体 - Qìgāng gài huò fādòngjī gāngtǐ), depending on engine design.
Description: Controls the opening and closing of engine valves. (控制发动机气门的打开和关闭 - Kòngzhì fādòngjī qìmén de dǎkāi hé guānbì)
Example: 卡特彼勒 (Caterpillar) C18 Engine Camshaft, Part Number: 379-7794
缸套 (Cylinder Liner)
Location: Inside Engine Block Cylinders (发动机缸体气缸内部 - Fādòngjī gāngtǐ qìgāng nèibù)
Description: Forms the inner wall of the cylinder, guiding piston movement and enduring combustion pressure. (构成气缸内壁,引导活塞运动并承受燃烧压力 - Gòuchéng qìgāng nèibì, yǐndǎo huósài yùndòng bìng chéngshòu ránshāo yālì)
Example: 卡特彼勒 (Caterpillar) C7.1 Engine Cylinder Liner, Part Number: 387-9573