公开(公告)号：US11073124B2

公开(公告)日：2021-07-27

申请号：US16686835

申请日：2019-11-18

Applicant: GE Renewable Technologies

Inventor： Lionel Martinez ,  Jean-Bernard Houdeline ,  Geoffrey Darona ,  Claude Beral

IPC: F03B3/18 ,  F03B3/12 ,  F03B3/02 ,  F03B11/00 ,  F03B11/04 ,  F16J15/16

Abstract: A hydraulic turbine includes a rotor with a runner, which is concentrically surrounded by a stator, whereby the runner comprises a plurality of runner blades arranged and distributed in a ring around a rotor axis, and each runner blade extends between a runner crown and a runner band; whereby the stator comprises a plurality of guide vanes arranged and distributed in a ring around the rotor axis, and each guide vane extends between an upper stator ring and a lower stator ring; and whereby a predetermined clearance is provided at least between the runner band and the lower stator ring. A substantial reduction of pressure pulsations in the vane-less gap between said runner blades of said runner is achieved by substantially increasing said predetermined clearance.

公开(公告)号：US20200149505A1

公开(公告)日：2020-05-14

申请号：US16686835

申请日：2019-11-18

Applicant: GE Renewable Technologies

Inventor： Lionel Martinez ,  Jean-Bernard Houdeline ,  Geoffrey Darona ,  Claude Beral

IPC: F03B3/18 ,  F03B11/04 ,  F03B11/00 ,  F03B3/02 ,  F03B3/12

Abstract: A hydraulic turbine includes a rotor with a runner, which is concentrically surrounded by a stator, whereby the runner comprises a plurality of runner blades arranged and distributed in a ring around a rotor axis, and each runner blade extends between a runner crown and a runner band; whereby the stator comprises a plurality of guide vanes arranged and distributed in a ring around the rotor axis, and each guide vane extends between an upper stator ring and a lower stator ring; and whereby a predetermined clearance is provided at least between the runner band and the lower stator ring. A substantial reduction of pressure pulsations in the vane-less gap between said runner blades of said runner is achieved by substantially increasing said predetermined clearance.

公开(公告)号：US10480480B2

公开(公告)日：2019-11-19

申请号：US15655166

申请日：2017-07-20

Applicant: GE RENEWABLE TECHNOLOGIES

Inventor： Lionel Martinez ,  Jean-Bernard Houdeline ,  Geoffrey Darona ,  Claude Beral

IPC: F03B3/18 ,  F03B3/02 ,  F03B11/00 ,  F03B11/04 ,  F03B3/12 ,  F16J15/16

Abstract: A hydraulic turbine includes a rotor with a runner, which is concentrically surrounded by a stator, whereby the runner comprises a plurality of runner blades arranged and distributed in a ring around a rotor axis, and each runner blade extends between a runner crown and a runner band; whereby the stator comprises a plurality of guide vanes arranged and distributed in a ring around the rotor axis, and each guide vane extends between an upper stator ring and a lower stator ring; and whereby a predetermined clearance is provided at least between the runner band and the lower stator ring. A substantial reduction of pressure pulsations in the vane-less gap between said runner blades of said runner is achieved by substantially increasing said predetermined clearance.