Title:
浮遊構造物用波減衰装置
Document Type and Number:
Japanese Patent JP4070236
Kind Code:
B2
Abstract:
PCT No. PCT/NO96/00279 Sec. 371 Date Dec. 16, 1998 Sec. 102(e) Date Dec. 16, 1998 PCT Filed Nov. 26, 1996 PCT Pub. No. WO97/20729 PCT Pub. Date Jun. 12, 1997A dampening device for dampening the vertical wave-induced motion component of a floating structure. The dampener projects in the form of a skirt down below the bottom of the floating structure (11) and consists of a plurality of channels (47) which extend substantially horizontally and converge from an inlet opening (27, 28, 36, 37, 38) to an outlet opening (16, 46) leading away from the floating structure (11). When the structure (11) moves downwards water is forced from the underside through the channels (47) and creates a jet effect which acts with dampening effect on the vertical motion of the structure. The dampening device may also be made in the form of an outwardly projecting skirt on the floating structure and consist of a plurality of channels (17), where a number of first passages (27, 28) extend in a substantially vertical direction and merge into a number of second passages (29) which extend in an at least substantially horizontal direction, and thereby force the water from a substantially vertical direction of motion, through the first passages (27, 28), into a horizontal direction of motion through the second passages (29) during a part of the passage through the dampener (12). A combination of the two dampeners, in that the dampener (12) is located immediately above the dampener (13) is also possible.
Inventors:
Olsen, Fred
Oigarden, Hans
Oigarden, Hans
Application Number:
JP50872297A
Publication Date:
April 02, 2008
Filing Date:
November 26, 1996
Export Citation:
Assignee:
Olsen, Fred
International Classes:
B63B39/06; B63B39/00; B63B39/08; E02B3/06
Domestic Patent References:
| JP60018090U | ||||
| JP59014599A | ||||
| JP60142197U | ||||
| JP6040380A | ||||
| JP62074100U |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto