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NO984420L - Hydraulic motor blade - Google Patents

Hydraulic motor blade

Info

Publication number
NO984420L
NO984420L NO984420A NO984420A NO984420L NO 984420 L NO984420 L NO 984420L NO 984420 A NO984420 A NO 984420A NO 984420 A NO984420 A NO 984420A NO 984420 L NO984420 L NO 984420L
Authority
NO
Norway
Prior art keywords
blade
outlet edge
cavitation
hydraulic motor
convex
Prior art date
Application number
NO984420A
Other languages
Norwegian (no)
Other versions
NO984420D0 (en
Inventor
Alexandr I Titov
Alexandr V Slepov
Yury Ya Firsukov
Original Assignee
Balttisky Z Baltiiskaya Mashin
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 Balttisky Z Baltiiskaya Mashin filed Critical Balttisky Z Baltiiskaya Mashin
Publication of NO984420D0 publication Critical patent/NO984420D0/en
Publication of NO984420L publication Critical patent/NO984420L/en

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
    • B63H1/26—Blades

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Rotary Pumps (AREA)

Abstract

Det foreslås en ny profil for et blad i forbindelse med hydraulisk fremdrift til bruk under forhold med ingen kavitasjon og ingen ventilasjon og med betydelig høyere effektivitet, løftekraft eller kavitasjonsfrie strømningsindikatorer. Bladet har en konveks sugeoverflate og en konveks-konkav kompresjonsoverflate og inntredende kant og utløpskant. Sugeoverflaten har et felt med stigende krumning i utløps- kanten, mens vendepunktet for linjen som danner kompresjonsoverflaten, er i en avstand fra utløpskanten på 0,6-0,9 ganger kordens lengde.A new profile is proposed for a blade in connection with hydraulic propulsion for use under conditions of no cavitation and no ventilation and with significantly higher efficiency, lifting power or cavitation-free flow indicators. The blade has a convex suction surface and a convex-concave compression surface and incoming edge and outlet edge. The suction surface has a field of increasing curvature at the outlet edge, while the turning point of the line forming the compression surface is at a distance from the outlet edge of 0.6-0.9 times the length of the cord.

NO984420A 1996-03-26 1998-09-22 Hydraulic motor blade NO984420L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU96105463A RU2127208C1 (en) 1996-03-26 1996-03-26 Hydraulic propeller blade
PCT/RU1997/000084 WO1997037889A1 (en) 1996-03-26 1997-03-25 Blade of a hydraulic propulsion system

Publications (2)

Publication Number Publication Date
NO984420D0 NO984420D0 (en) 1998-09-22
NO984420L true NO984420L (en) 1998-11-23

Family

ID=20178320

Family Applications (1)

Application Number Title Priority Date Filing Date
NO984420A NO984420L (en) 1996-03-26 1998-09-22 Hydraulic motor blade

Country Status (5)

Country Link
EP (1) EP0890506A1 (en)
JP (1) JP2000508268A (en)
NO (1) NO984420L (en)
RU (1) RU2127208C1 (en)
WO (1) WO1997037889A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6135831A (en) * 1999-10-22 2000-10-24 Bird-Johnson Company Impeller for marine waterjet propulsion apparatus
RU2228878C2 (en) * 2001-08-03 2004-05-20 Востропятов Иван Давыдович Propeller
JP2006111046A (en) * 2004-10-12 2006-04-27 Ihi Marine United Inc Propeller for vessel
US8696318B2 (en) * 2010-03-05 2014-04-15 Twin Disc, Inc. Stepped surface propeller
CN104895618B (en) * 2015-04-10 2017-02-01 中国科学院工程热物理研究所 Super-high load low pressure turbine blade, high load low pressure turbine and aviation gas turbine engine
CN114837992A (en) * 2021-02-02 2022-08-02 中国石油化工股份有限公司 Cavitation erosion resistant centrifugal pump blade
CN115009487B (en) * 2022-07-14 2024-05-17 中国人民解放军海军工程大学 S-shaped anti-cavitation profile structure of rotor blades and its application and design method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073601A (en) * 1974-12-09 1978-02-14 Dana Corporation Marine propeller
SE391690B (en) * 1975-06-17 1977-02-28 Karlstad Mekaniska Ab VESSEL PROPELLER BLADE OF SUPERCAVITATING TYPE
JPS59100088A (en) * 1982-11-30 1984-06-09 Sanshin Ind Co Ltd Propeller for propulsion machine for ship
FR2600971B1 (en) * 1986-07-04 1988-08-26 Alsthom MARINE PROPELLER BLADE
US4780058A (en) 1986-12-03 1988-10-25 Marine Systems Research Inc. Stable fluid foil section

Also Published As

Publication number Publication date
NO984420D0 (en) 1998-09-22
WO1997037889A1 (en) 1997-10-16
JP2000508268A (en) 2000-07-04
RU2127208C1 (en) 1999-03-10
EP0890506A1 (en) 1999-01-13

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