Phase 3
The control piston B2 has reached its left
end position. Thereby it opens the connec-
tion duct to the right end of control piston
C2 and metering piston C1. The pressurized
lubricant P1 is now located at the right end
of control piston C2 and metering piston C1
and first moves metering piston C1 to the
left due to its larger cross-section and then
displaces the lubricant enclosed on the left
side of metering piston C1 to outlet 4.
Phase 4
As soon as metering piston C1 reaches its
left end position, the pressurized lubricant
P2 moves the control piston C2 leftward and
additionally displaces the lubricant in front
of control piston C2 to outlet 4.
The total output of outlet 4 corresponds to
the output of metering piston C1 and control
piston C2.
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