Reciprocating pump

专利名称：Reciprocating pump

发明人：Yoshimura, Hiroichi c/o Fuji Techno Kogyo

K.K.

申请号：EP87107692.3申请日：19870526公开号：EP0265591B1公开日：19910724

摘要：A reciprocating pump comprises three parallel connected plunger pistonarrangements and is driven via a cam mechanism (10) by means of a rotary driving device.In order to insure a constant discharge, the cam mechanism (1) comprises three platecams (14) fixed on a common shaft (13) so that they are spaced 120 ° apart from eachother, the displacement curve (a1; a2; a3) of each plate cam has an ascending region inwhich displacement increases as the angle of rotation of the plate cam increases, and adescending region in which displacement decreases as the angle of rotation of the platecam increases, either the ascending region or the descending region including anaccelerating section in which displacement acceleratingly changes, a uniform velocitysection in which displacement linearly changes, and a decelerating section in whichdisplacement deceleratingly changes, the arrangement being such that the sum of thedisplacement per unit angle of rotation in the accelerating section and the displacementper corresponding unit angle of rotation in the decelerating section is equal to thedisplacement per unit angle of rotation in the uniform velocity section.

申请人：FUJI TECHNO KOGYO KABUSHIKI KAISHA

地址：26-22, KASUGA NISHIMACHI 2-CHOME; HIRAKATA-SHI OSAKA

代理机构：Schieschke, Klaus, Dipl.-Ing.

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