Centrifugal Regulator

Automatic clutch piston - Weights.

The piston is controlled:

- by the high pressure: positioning of the piston (fig 1a).

The fluid under pressure passes through conduit (E.D) (passing by the side of the cup) and comes to act on the section of the piston; A loaded spring assembly (TT') - the mechanical part of the regulator - makes it possible to obtain the closing of the high pressure inlet in (g) when the pressure in chamber (f) is slightly higher than P1 (see page 29, Mechanism paragraph of clutch);

- by the spacing of the weights of the regulator subjected to the action of the centrifugal force (fig 3a). Movement of the piston.

The weights moving out under the effect of the centrifugal force compress springs (TT'); the automatic clutch piston is then released: Direct connection of the hydraulic chamber of the regulator with the reservoir.

Assembly of two parts: one hydraulic, other mechanical. The mechanical part comprising weights and springs is turned at engine speed. The spacing of the weights is thus related to this speed.

Hydraulic part (see paragraph assembly 4a).

With the engine turning at 750 rpm approximately, adjust the compression of the spring T' with the adjuster so that pressure in chamber (f) (thus in the clutch slave cylinder) (Connection made by the automatic gear change piston) is equal to P1 (see page 29, paragraph clutch slave cylinder).

The flexibility of the springs (TT') is such that the total engagement of the clutch is carried out at 1200rpm.