Title:
DEVICE FOR REDUCING FRICTIONAL RESISTANCE ON SHIP
Document Type and Number:
WIPO Patent Application WO/2011/043146
Kind Code:
A1
Abstract:
Disclosed is a device for reducing the frictional resistance on a ship that is capable of mixing air into seawater through automatic suction without a process for generating microbubbles being influenced by the pressure of the seawater, and has a simple structure with low installation and application costs. The device for reducing the frictional resistance on a ship (3) has a bypass water pipe (12) with a shaft line above the waterline (WL), that is disposed on a water pipe (1) connecting a seawater intake (111) disposed on the bow (31) below the waterline (WL) and a seawater and microbubble vent (131) disposed on the ship bottom (33) below the waterline (WL) and farther back than the aforementioned intake (111); and an ejector (21) that is disposed in the aforementioned bypass water pipe (12).
Inventors:
SATO, Tadaaki (2538, Yamate-cho Fukuyama-shi Hiroshima, 92, 〒7200092, JP)
佐藤 正明 (〒92 広島県福山市山手町２５３８ Hiroshima, 〒7200092, JP)
佐藤 正明 (〒92 広島県福山市山手町２５３８ Hiroshima, 〒7200092, JP)
Application Number:
JP2010/065201
Publication Date:
April 14, 2011
Filing Date:
September 06, 2010
Export Citation:
Assignee:
SATO, Tadaaki (2538, Yamate-cho Fukuyama-shi Hiroshima, 92, 〒7200092, JP)
佐藤 正明 (〒92 広島県福山市山手町２５３８ Hiroshima, 〒7200092, JP)
佐藤 正明 (〒92 広島県福山市山手町２５３８ Hiroshima, 〒7200092, JP)
International Classes:
B63B1/38
Attorney, Agent or Firm:
MORI, Hisao et al. (505-14, Ohjima Kurashiki-shi Okayama, 47, 〒7100047, JP)
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