ES425136A1 - Device for the reduction of speed differences in a flow that transfers the disk area of the helix of a boat. (Machine-translation by Google Translate, not legally binding) - Google Patents

Device for the reduction of speed differences in a flow that transfers the disk area of the helix of a boat. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES425136A1
ES425136A1 ES425136A ES425136A ES425136A1 ES 425136 A1 ES425136 A1 ES 425136A1 ES 425136 A ES425136 A ES 425136A ES 425136 A ES425136 A ES 425136A ES 425136 A1 ES425136 A1 ES 425136A1
Authority
ES
Spain
Prior art keywords
disk area
translation
machine
legally binding
google translate
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.)
Expired
Application number
ES425136A
Other languages
Spanish (es)
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.)
KARLSTAD MEKANISKA AB
Metso Fiber Karlstad AB
Original Assignee
KARLSTAD MEKANISKA AB
Karlstads Mekaniska Werkstad AB
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 KARLSTAD MEKANISKA AB, Karlstads Mekaniska Werkstad AB filed Critical KARLSTAD MEKANISKA AB
Publication of ES425136A1 publication Critical patent/ES425136A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/28—Other means for improving propeller efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Turbines (AREA)

Abstract

Device for reducing speed differences in a flow passing through the disk area (1) of the propeller (25) of a ship arranged to rotate behind a stern (23) or an axle butt (37) with a distance (b) between the rear edge of said sprocket (23) or shaft buttress (37) and the disk area (1), which includes a pump unit (27) for the generation of jets of water and/or gas through nozzles (33) that are placed at distances (a) in front of the disk area (1) and mainly directed aft, characterized in that for at least one of the nozzles (33), the sum of the two distances cited, a and b, is greater than the diameter of the disk area (1). (Machine-translation by Google Translate, not legally binding)
ES425136A 1973-04-10 1974-04-09 Device for the reduction of speed differences in a flow that transfers the disk area of the helix of a boat. (Machine-translation by Google Translate, not legally binding) Expired ES425136A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7305021A SE377919B (en) 1973-04-10 1973-04-10

Publications (1)

Publication Number Publication Date
ES425136A1 true ES425136A1 (en) 1976-07-01

Family

ID=20317163

Family Applications (1)

Application Number Title Priority Date Filing Date
ES425136A Expired ES425136A1 (en) 1973-04-10 1974-04-09 Device for the reduction of speed differences in a flow that transfers the disk area of the helix of a boat. (Machine-translation by Google Translate, not legally binding)

Country Status (7)

Country Link
JP (1) JPS5012789A (en)
DE (1) DE2416562A1 (en)
ES (1) ES425136A1 (en)
FR (1) FR2225330B1 (en)
IT (1) IT1011656B (en)
NL (1) NL7404215A (en)
SE (1) SE377919B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147983A (en) * 1981-03-11 1982-09-13 Mitsubishi Heavy Ind Ltd Control device of stern current field
GB2103016B (en) * 1981-07-21 1985-07-10 Standard Telephones Cables Ltd Temperature sensitive capsules
JPS5881895A (en) * 1981-11-10 1983-05-17 Mitsubishi Heavy Ind Ltd Stern flow field controller
JPS61104299U (en) * 1984-12-15 1986-07-02
JPH0646796Y2 (en) * 1985-02-06 1994-11-30 日立造船株式会社 Stern flow improvement device
FI74920C (en) * 1985-10-25 1989-04-10 Rauma Repola Oy FOERFARANDE OCH SYSTEM FOER ATT MINSKA ROTATIONSMOTSTAONDET I PROPELLER.
FI82653C (en) * 1987-04-24 1991-04-10 Antti Kalevi Henrik Jaervi FOERFARANDE OCH ANORDNINGAR FOER AVLAEGSNANDE AV IS FRAON RAENNA.
IT1216545B (en) * 1988-04-05 1990-03-08 Fabio Buzzi CAVITATIONAL EFFECT DEVICE FOR PROPELLERS OF VESSELS WITH PLANING OR SEMI-PLANING FAIRING.
CN104015906A (en) * 2014-06-09 2014-09-03 王东武 Method capable of reducing cavitation noise of propeller and improving efficiency of propeller

Also Published As

Publication number Publication date
JPS5012789A (en) 1975-02-10
SE377919B (en) 1975-08-04
NL7404215A (en) 1974-10-14
IT1011656B (en) 1977-02-10
FR2225330B1 (en) 1976-06-25
FR2225330A1 (en) 1974-11-08
DE2416562A1 (en) 1974-11-07

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