Understanding Key Machinery Components

As part of our commitment to providing expert service, here are essential definitions for various machinery components, helping you quickly identify the right replacement spare parts for your equipment:

• Throttle Motor (油门马达 / Дроссельный двигатель): An electric motor, often a Stepping Motor , located near the engine's fuel rack or throttle body, that precisely controls engine speed (RPM) based on operator input.
  Example: Komatsu PC200-7 Throttle Motor (7834-41-2000) - Komatsu PC200-7 油门马达 - Komatsu PC200-7 Дроссельный двигатель.
• Governor Motor (调速马达 / Регуляторный двигатель): A specific type of electric throttle motor primarily responsible for maintaining a steady engine speed despite load variations. It’s a core engine control component .
  Example: Kobelco SK200-6E Governor Motor (YN20S00002F1) - Kobelco SK200-6E 调速马达 - Kobelco SK200-6E Регуляторный двигатель.
• Hydraulic Pump (液压泵 / Гидравлический насос): The heart of the hydraulic system, typically mounted on the engine, it converts mechanical power into hydraulic energy (flow and pressure) to move the machine's attachments.
  Example: Hitachi ZX330-3 Hydraulic Pump (9257309) - Hitachi ZX330-3 液压泵 - Hitachi ZX330-3 Гидравлический насос.
• Starter Motor (起动马达 / Стартер): An electric motor, typically mounted on the engine block near the flywheel, used to crank the engine to begin its operation. A key electrical system part .
  Example: Hyster 3.1 Starter Motor (9000859) - Hyster 3.1 起动马达 - Hyster 3.1 Стартер.
• Fuel Injection Pump (燃油喷射泵 / Насос ТНВД): A precision component, mounted on the engine, that pressurizes and delivers fuel to the engine's cylinders at precisely the correct time for combustion. A vital diesel engine component .
  Example: Cummins K38 Fuel Injection Pump (3096205) - Cummins K38 燃油喷射泵 - Cummins K38 Насос ТНВД.
• Alternator (交流发电机 / Генератор): Located on the engine and belt-driven, it generates electrical power to charge the battery and run the machine's electrical systems while the engine is running.
  Example: Mitsubishi Engine Alternator (A2T72186) - Mitsubishi Engine 交流发电机 - Mitsubishi Engine Генератор.
• Engine Throttle Controller (发动机节气门控制器 / Контроллер дроссельной заслонки двигателя): The electronic module (ECU) that receives signals and drives the Throttle Motor to set the correct engine RPM.
  Example: Doosan DH200 Engine Throttle Controller (300611-00123) - Doosan DH200 发动机节气门控制器 - Doosan DH200 Контроллер дроссельной заслонки двигателя.
• Throttle Position Sensor (油门位置传感器 / Датчик положения дроссельной заслонки): An electronic sensor on the throttle body or governor motor that feeds back the current throttle position to the ECU, ensuring accurate speed control.
  Example: Hitachi EX200-5/6 Throttle Positioner Sensor (4614912) - Hitachi EX200-5/6 油门位置传感器 - Hitachi EX200-5/6 Датчик положения дроссельной заслонки.
• Throttle Motor Control Cable (油门马达控制电缆 / Трос управления дроссельной заслонкой): A mechanical cable connecting older Throttle Motors or accelerator pedals to the engine's fuel control linkage.
  Example: CAT E330C Throttle Motor Accelerator Cable - CAT E330C 油门马达加速电缆 - CAT E330C Трос акселератора.
• Def Urea Dosing Valve Injector (尿素喷射阀 / Форсунка дозирования мочевины): Part of the exhaust aftertreatment system (SCR), typically mounted on the exhaust pipe, it injects DEF/Urea fluid to reduce harmful NOx emissions in modern heavy truck parts and engineering machinery parts.
  Example: Cummins ISX Def Urea Dosing Valve Injector (2888173) - Cummins ISX 尿素喷射阀 - Cummins ISX Форсунка дозирования мочевины.