抄録
There is a pulsating flow in reciprocating pumps generally to do a sign curve movement of the form. Multiplex type pulsation-free pump needs special cam form for avoiding the pulsating flow. However, a micro pulsation occurs in the start part of section of piling the flux wave form of two reciprocating pumps. The cause of this pulsation is analyzed in the present paper. And the way of amending the cam, which is necessary for eliminating the micro pulsation, is proposed and the applied result is described.
