Bukh DV36/48, Руководство по ремонту

Страница: 68 / 196

009W2329.XLS
H8
The centrifugal governor is placed in the upper part of the fuel pump.
The holder (7) with gear-wheel is placed on the governor shaft (5) and is driven by the drive
shaft (2) via the gear-wheel (3) and a rubber shock absorber (vibration damper).
Four weights (8) are mounted in the centrifugal weight holder. They press on the axially
displaceable governor bush (6) via a thrust washer (4) with their pressure arms.
The governor arm group consists of starting lever (21), clamping arm (19) and correcting lever
(15). Starting lever and clamping arm are placed in the pump housing. In this way it is possible
to adjust the full load quantity by the adjusting screw (17) without influencing th adjustment of
the revolutions.
A leaf spring is placed on the starting lever (21) and it works as a starter spring. An axially
displaceable bolt (16) with idle spring (18) is placed in the upper part of the clamping arm (19).
The governor spring (9) is fixed in this bolt. The tension of the governor spring can be changed
by the timing lever (10). The starting lever (21) has a ball in the lower part connected with the
governor slide (24).
Injection Timing
On the under side of the fuel pump, at right angles in proportion to the longitudinal axis, the
spring-loaded injection timing piston (27) is. The roller cage (28) is turned influenced by the
feed pump pressure and via a mechanism. The injection timing is thus adjusted depending on
the revolutions.