Vehicle Clutch Construction

A clutch is a mechanical device transmits power transmission from crankshaft to driven shaft . Clutches use frictional forces for their operation.


How a vehicle clutch works

There are three main types of clutch activation systems:

  1. Linkage clutch
  2. Cable clutch
  3. Hydraulic clutch

Now let`s see two variants of clutch works:

1. When a car is moving under power;

2. When driver pushed clutch pedal.

When a car is moving under power

The clutch is engaged. A pressure plate bolted to the flywheel exerts constant force, by means of a diaphragm spring, on the driven plate.

When driver pushed clutch pedal

The clutch is disengaged an arm pushes a release bearing to the centre of the diaphragm spring which releases the clamping pressure.

Clutch construction in detail:

How a vehicle clutch works

1- Crankshaft; 2 – Flywheel; 3 – Driven disk; 4 – Pressure plate; 5 – Clutch cover; 6 – helical springs; 7 – diaphragm spring; 8 – release bearing; 9 – clutch release fork; 10 – working cylinder; 10 – pipeline; 12 – master cylinder; 13 – clutch pedal; 14 – casing; 15 – gear primary shaft; 16 – gearbox case; 17 – gearbox input (primary shaft).

The clutch consists of driving and driven parts, push mechanism and deactivation mechanism. Driving part details perceive rotation moment from engine flywheel, and the driven parts transmit it to the gear primary shaft.  

The push mechanism provides tight connecting driving and driven clutch parts to create friction moment so need. Clutch deactivation mechanism provides clutch control.

The clutch drive has got two types: mechanic and hydraulic clutch. To create a light clutch deactivation, driving amplifier used with this.