公开(公告)号：US11725621B2

公开(公告)日：2023-08-15

申请号：US17800919

申请日：2021-02-19

Applicant: Novige AB

Inventor： Jan Skjoldhammer ,  Timo Pohjanvuori

IPC: F03B13/00 ,  F03B13/18 ,  E02B9/08 ,  F03B13/14

CPC classification number: F03B13/1875 ,  E02B9/08 ,  F03B13/145 ,  F05B2260/87

Abstract: A power take-off apparatus for a wave energy converter of point absorber type, includes a cylinder attachable to a floating device, a piston that reciprocates inside the cylinder and has a piston rod attachable to a mooring, at least one penstock with a first end in communication with a second end of the cylinder through a first opening, and a second end having a second opening, and a housing above a cylinder first end. The housing communicates with the penstock through the second opening and with the cylinder through a third opening in the housing such that the cylinder, penstock and the housing form a closed loop for a fluid in the power take-off apparatus. A water turbine is arranged inside the housing so that working fluid entering the housing from the at least one penstock causes rotation of the water turbine to drive an electrical generator connected thereto.

公开(公告)号：US20230077335A1

公开(公告)日：2023-03-16

申请号：US17800919

申请日：2021-02-19

Applicant: Novige AB

Inventor： Jan Skjoldhammer ,  Timo Pohjanvuori

IPC: F03B13/18 ,  F03B13/14 ,  E02B9/08

Abstract: A power take-off apparatus for a wave energy converter of point absorber type, includes a cylinder attachable to a floating device, a piston that reciprocates inside the cylinder and has a piston rod attachable to a mooring, at least one penstock with a first end in communication with a second end of the cylinder through a first opening, and a second end having a second opening, and a housing above a cylinder first end. The housing communicates with the penstock through the second opening and with the cylinder through a third opening in the housing such that the cylinder, penstock and the housing form a closed loop for a fluid in the power take-off apparatus. A water turbine is arranged inside the housing so that working fluid entering the housing from the at least one penstock causes rotation of the water turbine to drive an electrical generator connected thereto.