Engagement Of Clutch
The figure shows an electromagnetic clutch. In this clutch system, the flywheel consists of winding. The current is supplied in the winding from the battery or dynamo. When the current flows through the winding, it produces a magnetic field which attracts the pressure plate, thereby engaging the clutch.
Disengagement Of Clutch
When the current supply is cut-off, the clutch is disengaged. The gear lever contains a clutch release switch. When then driver holds the gear lever to change the gear, the switch is operated cutting off the current to the winding which causes the clutch disengaged.
At low gear speeds when the dynamo output is low, the clutch is not fully engaged. so, three springs are also provided on the pressure plate which helps the electromagnetic clutch engaged firmly at low speed also. This type of clutch is also used in Renault cars.
Types of Electromagnetic Clutches
- Single disk clutches.
- Multi-disk clutches.
- Hysteresis Powered Clutches.
- Electromagnetic Tooth Clutches.
- Electromagnetic Particle Clutches.
|Electromagnetic Clutch Line Diagram|
When the electromagnetic clutch is used in motor vehicles, there is a clutch release switch inside of the gear lever. The driver operates the switch by only holding the gear lever to change the gear, thus shut down Current to the electromagnet and disengaging the clutch. By this mechanism, there is no need to depressing the clutch pedal.
You can watch the animation video of Electromagnetic Clutch below:
The clutch control system is so simple and no complications of clutch linkage are required.
Less driver effort is required for engaging and disengaging the clutch because the clutch is electronically operated.
The initial cost is high.
Works at less operating temperature, because at high temperature, the insulation gets damaged.
The armature coil used for engagement needs a periodic check.
Auto-airconditioning System of vehicles.
Vehicles with AWD systems.
Pumps and Compressors.
Servo motors and robotics.
Outdoor power equipment.
Processing machinery and factory automation.