Nomenclature of Oil Pump Components

正时齿链条 (Timing Chain): A crucial part of the engine's timing system, ensuring the crankshaft and camshaft rotate in synchronization. Installed within the engine block, often seen in engines of 工程机械 (engineering machinery) like a 卡特彼勒 320L (Caterpillar 320L) - Цепь ГРМ.

密封圈（油泵定位套） (Seal Ring - Oil Pump Positioning Sleeve): Prevents oil leakage from the oil pump's mounting area, ensuring proper sealing. Found where the oil pump connects to the engine block. Example: 重卡 (heavy truck) 沃尔沃 FH16 (Volvo FH16) - Уплотнительное кольцо масляного насоса.

机油泵齿 (Oil Pump Gear): The driving or driven gear within the oil pump that creates the pressure and flow of oil. Located inside the oil pump housing. Example: 农机 (agricultural machinery) 约翰迪尔 8R (John Deere 8R) - Шестерня масляного насоса.

机油泵花键套 (Oil Pump Spline Sleeve): Connects the oil pump to its driving shaft, allowing for torque transfer. Part of the oil pump assembly. Example: 汽车配件 (auto parts) in a 丰田凯美瑞 (Toyota Camry) - Шлицевая втулка масляного насоса.

机油泵衬套 (Oil Pump Bushing): Provides a low-friction bearing surface for the oil pump shaft to rotate within. Located inside the oil pump. Example: 工程机械 like a 小松 PC200-8 (Komatsu PC200-8) - Втулка масляного насоса.

机油泵传动齿轮 (Oil Pump Drive Gear): The gear that directly receives power to operate the oil pump, often from the crankshaft. Mounted on the crankshaft or a related shaft. Example: 重卡 斯堪尼亚 R系列 (Scania R-series) - Приводная шестерня масляного насоса.

机油泵传动齿轮轴 (Oil Pump Drive Gear Shaft): The shaft on which the oil pump drive gear is mounted. Supports the drive gear. Example: 农机 Case IH Magnum - Вал приводной шестерни масляного насоса.

机油泵转子(内/外) (Oil Pump Rotor - Inner/Outer): The internal components of certain types of oil pumps (like gerotor pumps) that rotate to displace oil. Located within the oil pump housing. Example: 汽车配件 in a 本田雅阁 (Honda Accord) - Ротор масляного насоса (внутренний/внешний).

机油泵顶盖 (Oil Pump Top Cover): Seals the top of the oil pump housing, protecting the internal components. Forms part of the oil pump's outer casing. Example: 工程机械 like a 沃尔沃 EC220E (Volvo EC220E) - Верхняя крышка масляного насоса.

机油泵压盖 (Oil Pump Pressure Plate): A plate that helps maintain pressure and secure internal components within the oil pump. Found inside the oil pump. Example: 重卡 梅赛德斯-奔驰 Actros (Mercedes-Benz Actros) - Прижимная пластина масляного насоса.