公开(公告)号：US20180274560A1

公开(公告)日：2018-09-27

申请号：US15920535

申请日：2018-03-14

Applicant: Xylem IP Management S.à r.l.

Inventor： Stefano DANIELI ,  Luigi D'ANDREA

IPC: F04D29/70 ,  F04D13/02 ,  F04D29/046 ,  F04D29/043

Abstract: A de-blocking device for a hydraulic pump includes a can having a longitudinal axis and a conduit extending longitudinally along the longitudinal axis and having a first terminal aperture. The device further includes a bearing fixedly positioned in the conduit spaced from the first terminal aperture, and a plunger axially movably positioned in the conduit between the bearing and the first terminal aperture. A biasing element is positioned between the bearing and the plunger wherein the movement of the plunger toward the bearing compresses the biasing element.