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    WEC WITH IMPROVED POWER TAKE OFF APPARATUS
    2.
    发明公开
    WEC WITH IMPROVED POWER TAKE OFF APPARATUS 有权
    具有改进的PTO装置波浪能转换器

    公开(公告)号：EP2414668A2

    公开(公告)日：2012-02-08

    申请号：EP10761956.1

    申请日：2010-03-29

    申请人： Ocean Power Technologies, Inc.

    发明人： CHI, Wei-Ming ,  HART, Philip, R.

    IPC分类号： F03B13/18

    CPC分类号： F03B13/1855 ,  F05B2240/40 ,  F05B2260/4031 ,  F05B2260/504 ,  F05B2260/505 ,  Y02E10/38

    摘要： A wave energy converter (WEC) includes a float and a spar for guiding the up and down movement of the float in response to the waves. A power take off (PTO) device coupled between the float and the spar and mounted within one of the float and spar such that the PTO includes apparatus responsive to the mechanical interaction of the float with the portion of the spar in proximity to the float for converting their relative motion into useful energy. In one embodiment the PTO includes a linear rack extending along an external portion of the spar and a linear to rotary converter, mounted within the float, including a double sided toothed belt for engaging the rack and causing rotation of the rotary converter to drive an electric generator. In another embodiment the PTO includes tires mounted within the float which rotate as the float moves up and down. In another embodiment the PTO includes a rack and pinion arrangement with one of them connected to the spar and the other mounted in the float.

    IMPROVED POWER TAKE OFF APPARATUS FOR A WEC
    3.
    发明公开
    IMPROVED POWER TAKE OFF APPARATUS FOR A WEC 审中-公开
    改进PTO DEVICE FOR波动能量转换器

    公开(公告)号：EP2414669A1

    公开(公告)日：2012-02-08

    申请号：EP10761957.9

    申请日：2010-03-29

    申请人： Ocean Power Technologies, Inc.

    发明人： CHI, Wei-Ming

    IPC分类号： F03B13/18

    CPC分类号： F03B13/1855 ,  F05B2240/40 ,  F05B2260/4031 ,  F05B2260/504 ,  F05B2260/505 ,  Y02E10/38

    摘要： A wave energy converter (WEC) includes a float which moves generally in phase with the waves and whose up and down motion is guided by and along a spar having an upper portion and a lower portion. A power take off (PTO) device is coupled between the float and the spar for converting their relative motion into useful energy. In some embodiments, the PTO includes (a) a drum having an axis of rotation rotatably mounted within one of the float and spar; and (b) cabling means connected between the drum and the other one of the float and spar for causing the drum to rotate as a function of the up and down motion of the float. In other embodiments, the PTO system is formed using a pre-tensioned roller chain wound around sprocket wheels located within one of the spar and float with the opposite ends of the chain connected to the other one of the spar and float to cause rotation of the sprocket wheels in response to movement of the float relative to the spar.