Robin EC12 - Page 51

10-3-2 OIL INTAKE AND DISCHARGE CYCLE AT OIL PUMP
The plunger rotates 360 degree with a cycle. (Shared area means oil.)
(1) Intake
The plunger remains in the
closed position.
The plunger strokes to the right.
The volume
of oil chamber is expanded.
Fig. 70-6
Closed position
Pin
Cam top'&
Direction of plunger roatating
(2) Discharge
The plunger
is raised to the open position by the pin.
The plunger strokes
to the left.
The
volume of oil chamber is decreased.
ir' funger
Oil inlet
/m
Closed position
Pin
m top
Cam base 'A
Direction of plunger roatating
piiiq
Fig.
70-7
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