Torque converter automatic transmission Nissan Primera
The torque converter is a key component of the Nissan Primera automatic transmission. It performs several important functions:
1. Torque transmission:
* The torque converter transmits torque from the engine to the automatic transmission.
* It acts as a friction clutch, allowing power to be transmitted smoothly without jerking.
2. Torque multiplication:
* The torque converter increases torque at low speeds, making it easier to start and climb hills.
3. Vibration dampening:
* The fluid-filled torque converter absorbs vibration from the engine, ensuring smooth operation of the automatic transmission.
Torque converter design:
The Nissan Primera automatic transmission torque converter consists of the following main components:
* Pump: Attached to the engine crankshaft and produces hydraulic pressure.
* Turbine: Connected to the input shaft of the automatic transmission and receives hydraulic pressure from the pump.
* Stator: A stationary component located between the pump and turbine that changes the direction of hydraulic flow.
* Overrunning clutch: Provides torque transmission in one direction only.
Working principle:
1. The pump creates hydraulic pressure and directs fluid to the turbine blades.
2. The turbine rotates under the influence of hydraulic pressure and transmits torque to the stator.
3. The stator reverses the direction of hydraulic flow and directs it back to the pump.
4. This circulating hydraulic flow creates a hydrodynamic connection between the pump and the turbine, transmitting torque and multiplying it at low speeds.
Maintenance:
* The fluid in the torque converter should be changed regularly to ensure proper operation.
* Malfunctions of the torque converter can lead to problems with gear shifting, clutch slipping and other automatic transmission problems.