JPS5587695A - Air bubble injection blade - Google Patents

Air bubble injection blade

Info

Publication number
JPS5587695A
JPS5587695A JP15827078A JP15827078A JPS5587695A JP S5587695 A JPS5587695 A JP S5587695A JP 15827078 A JP15827078 A JP 15827078A JP 15827078 A JP15827078 A JP 15827078A JP S5587695 A JPS5587695 A JP S5587695A
Authority
JP
Japan
Prior art keywords
propeller
prairie
air bubble
leading edge
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15827078A
Other languages
Japanese (ja)
Other versions
JPS6114997B2 (en
Inventor
Tsuyoshi Kawazoe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP15827078A priority Critical patent/JPS5587695A/en
Publication of JPS5587695A publication Critical patent/JPS5587695A/en
Publication of JPS6114997B2 publication Critical patent/JPS6114997B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To manufacture a Prairie propeller (air bubble injection blade) with ease by a cnstruction wherein a propeller is comprising by securing a tubular section suited for the leading edge of a propeller at the leading edge.
CONSTITUTION: The wide spaced slant lines of a Prairie propeller indicates the blade cross section of a Prairie propeller 7. The leading edge 7c of a Prairie propeller forms the shape suited to the leading edge of the propeller, which is formed by welding the tubular section 11 made of the same material as the propeller with the propeller body. Air bubble injected from a number of air injection holes 8 perforated in the hollow section, namely, an air passage 1a, and the propeller surface is covered with the film of an air bubble in order to shut out the cavitation noise.
COPYRIGHT: (C)1980,JPO&Japio
JP15827078A 1978-12-21 1978-12-21 Air bubble injection blade Granted JPS5587695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15827078A JPS5587695A (en) 1978-12-21 1978-12-21 Air bubble injection blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15827078A JPS5587695A (en) 1978-12-21 1978-12-21 Air bubble injection blade

Publications (2)

Publication Number Publication Date
JPS5587695A true JPS5587695A (en) 1980-07-02
JPS6114997B2 JPS6114997B2 (en) 1986-04-22

Family

ID=15667932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15827078A Granted JPS5587695A (en) 1978-12-21 1978-12-21 Air bubble injection blade

Country Status (1)

Country Link
JP (1) JPS5587695A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042189A (en) * 1983-08-18 1985-03-06 Katsuhiko Sakata Wave suppression screw
JPS62103296A (en) * 1985-10-25 1987-05-13 アクアマスター―ラウマ　オイ Method and device for reducing rotating resistance of ship propeller
CN109018281A (en) * 2018-08-02 2018-12-18 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） Propeller arrangement and marine propeller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042189A (en) * 1983-08-18 1985-03-06 Katsuhiko Sakata Wave suppression screw
JPS62103296A (en) * 1985-10-25 1987-05-13 アクアマスター―ラウマ　オイ Method and device for reducing rotating resistance of ship propeller
CN109018281A (en) * 2018-08-02 2018-12-18 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） Propeller arrangement and marine propeller

Also Published As

Publication number Publication date
JPS6114997B2 (en) 1986-04-22

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