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2. Principles of Operation
The Yamada Air-powered Pump is a reciprocating type that is driven by
compressed air. The pump consists of an air motor to drive the pump and a
lower pump to draw up the material as shown in the figure at right.
When compressed air is supplied from the compressor to the air motor, the
air piston starts its up/down motion by the function of the air switching
mechanism built in it.
This motion is transmitted to the piston of the lower pump by the connecting
rod that connects between the air piston of the air motor and the piston of the
lower pump, thereby giving the up/down motion to it.
When the up/down reciprocating motion of the piston of the lower pump is
performed, the material is sucked into the lower pump and fed out from the
discharge port by pressure.
Lower pump
Connecting
rod
Air
Motor