Title:
船舶の推進出力の必要量を減少させる装置
Document Type and Number:
Japanese Patent JP4745411
Kind Code:
B2
Abstract:
The device (10) has a front nozzle (20) including fins or air foils (30, 30d) arranged within the front nozzle, where the device is firmly attached to a ship body (100). Inner diameter of the front nozzle is smaller than 90 percent of an air-screw diameter. The front nozzle is arranged rotation-symmetrically with an axis (21) lying above an air-screw axis (PA). The fins and the air foils are arranged asymmetrically in an inner space (20a) of the front nozzle and radially to the air screw axis.
Inventors:
Friedrich Mavis
Application Number:
JP2009054524A
Publication Date:
August 10, 2011
Filing Date:
March 09, 2009
Export Citation:
Assignee:
Becker Marine Systems Gezelshaft Mito Beschlenktel Haftung und Companie Commande Gezelshaft
International Classes:
B63H5/16
Domestic Patent References:
| JP58194691A | ||||
| JP60127299U | ||||
| JP61036499U | ||||
| JP4230486A | ||||
| JP63151396U | ||||
| JP9175488A | ||||
| JP57026086A | ||||
| JP2008174115A |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Blacksmith