1. Engine: Engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, and electric motors Wait. For example, internal combustion engines usually convert chemical energy into mechanical energy. The engine is not only suitable for the power generation device, but also refers to the entire machine including the power device.
2. Torque converter: (1) The role of the clutch. When the engine is running at idle speed, the torque converter acts as an unengaged clutch between the engine and the transmission.
(2) Increasing torque effect. With the cooperation of "high pump wheel speed" + "low turbine speed", the torque is increased, thereby generating larger starting and driving torque.
(3) Hydraulic coupling. In non-idling or non-starting conditions, it is equivalent to a fluid coupling, which transmits engine torque to the gearbox.
(4) Locking function. When the turbine speed rises to the same speed as the pump wheel, the lock-up clutch is engaged, and the torque converter transmits the engine power 1:1 to the gearbox
2. Gearbox: The gearbox is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio of the output shaft and the input shaft in a fixed or divided stage, also known as a gearbox. The transmission consists of a variable speed transmission mechanism and a control mechanism, and some cars also have a power output mechanism. Most of the transmission mechanisms are driven by ordinary gears, and some are driven by planetary gears. Ordinary gear transmission transmission mechanisms generally use slip gears and synchronizers, etc.
4. Drive axle: The drive axle is a mechanism at the end of the drive train that can change the speed and torque from the transmission and transfer them to the drive wheels. The drive axle is generally composed of a main reducer, a differential, a wheel transmission device, and a drive axle housing. The steering drive axle also has a constant velocity universal joint. In addition, the drive axle also bears the vertical force, longitudinal force and lateral force, as well as braking torque and reaction force acting between the road surface and the frame or body.