| 摘要 |
In a liquid metering device of the type having piston-cylinder assembly connected for receiving pressurized liquid and discharging slugs of the liquid alternately from opposite ends of the cylinder of the piston-cylinder assembly upon reciprocative movement of the piston therein, the improvement comprising a regulating means for automatically controlling the length of travel or stroke of the piston in response to the change in angular velocity of a rotating mechanism. The regulating means includes a valve actuatable by an inertia means which senses the r.p.m. of the rotating mechanism.
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