公开(公告)号：US4773820A

公开(公告)日：1988-09-27

申请号：US24131

申请日：1987-03-10

Applicant: Bernard Lourdeaux ,  Patrick Huvet

Inventor： Bernard Lourdeaux ,  Patrick Huvet

IPC: F03B11/00 ,  F03B11/06 ,  F01D3/00

CPC classification number: F03B11/00 ,  F03B11/063 ,  F05B2250/15 ,  F05B2250/25 ,  Y02E10/226

Abstract: A buffer device for the spiral housings of water turbines wherein the housing includes an extension located along the axis of the inlet conduit into the housing and wherein a hydraulic cylinder and piston assembly is disposed between the extension and a fixed support with a fluid conduit extending between the housing and the cavity of the hydraulic cylinder and piston assembly.

Abstract translation: 一种用于水轮机的螺旋壳体的缓冲装置，其中壳体包括沿着入口导管的轴线定位到壳体中的延伸部，并且其中液压缸和活塞组件设置在延伸部和固定支撑件之间， 液压缸和活塞组件的外壳和空腔。