GB340379A - Improvements in tubing with stepped inner surface - Google Patents

Improvements in tubing with stepped inner surface

Info

Publication number
GB340379A
GB340379A GB35355/29A GB3535529A GB340379A GB 340379 A GB340379 A GB 340379A GB 35355/29 A GB35355/29 A GB 35355/29A GB 3535529 A GB3535529 A GB 3535529A GB 340379 A GB340379 A GB 340379A
Authority
GB
United Kingdom
Prior art keywords
nov
fluid
steps
tubing
main stream
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
GB35355/29A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB340379A publication Critical patent/GB340379A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
    • F15D1/065—Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

340,379. Metal tubes. ANTONI, U., 56, Via Ugo Foscolo, Viareggio, Italy. Nov. 19, 1929, No. 35355. Convention date, Nov. 23, 1928. [Class 99 (ii).] A tube A is provided on its inner wall with steps B inclined in the direction of the flow of fluid D as shown so as to reduce the resistance to flow caused by skin friction. The frictional resistance will occur only between the main stream and any fluid in the chambers C, formed by the steps B and in which a partial vacuum is generated, instead of between the main stream and the tube wall.
GB35355/29A 1928-11-23 1929-11-19 Improvements in tubing with stepped inner surface Expired GB340379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT340379X 1928-11-23

Publications (1)

Publication Number Publication Date
GB340379A true GB340379A (en) 1931-01-01

Family

ID=11238912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35355/29A Expired GB340379A (en) 1928-11-23 1929-11-19 Improvements in tubing with stepped inner surface

Country Status (1)

Country Link
GB (1) GB340379A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841182A (en) * 1955-12-29 1958-07-01 Westinghouse Electric Corp Boundary layer fluid control apparatus
US2997229A (en) * 1959-10-06 1961-08-22 Means for removing moisture from a surface
US3631825A (en) * 1966-01-22 1972-01-04 Heinrich Weiste Apparatus for distributing and spreading material
US4281964A (en) * 1980-01-21 1981-08-04 Black & Decker Inc. Turbine housing and method for making the same
WO1991002207A1 (en) * 1989-08-09 1991-02-21 Clifford, Bryan, Thomas Heat exchangers
US5263793A (en) * 1991-11-19 1993-11-23 Ormat Industries, Ltd. Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field
US5362179A (en) * 1991-11-19 1994-11-08 Lawrence Sirovich Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field
WO2011082893A1 (en) * 2009-12-15 2011-07-14 Sms Siemag Ag Nozzle device and strand guiding device having said nozzle device
CN113380663A (en) * 2020-03-09 2021-09-10 Hs高科技股份有限公司 Two-fluid nozzle for cleaning substrate

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841182A (en) * 1955-12-29 1958-07-01 Westinghouse Electric Corp Boundary layer fluid control apparatus
US2997229A (en) * 1959-10-06 1961-08-22 Means for removing moisture from a surface
US3631825A (en) * 1966-01-22 1972-01-04 Heinrich Weiste Apparatus for distributing and spreading material
US4281964A (en) * 1980-01-21 1981-08-04 Black & Decker Inc. Turbine housing and method for making the same
WO1991002207A1 (en) * 1989-08-09 1991-02-21 Clifford, Bryan, Thomas Heat exchangers
US5263793A (en) * 1991-11-19 1993-11-23 Ormat Industries, Ltd. Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field
US5362179A (en) * 1991-11-19 1994-11-08 Lawrence Sirovich Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field
AU658692B2 (en) * 1991-11-19 1995-04-27 Ormat Industries Ltd. Method of and apparatus for controlling turbulence in a wall-bounded flow field
WO2011082893A1 (en) * 2009-12-15 2011-07-14 Sms Siemag Ag Nozzle device and strand guiding device having said nozzle device
CN102802837A (en) * 2009-12-15 2012-11-28 Sms西马格股份公司 Nozzle device and strand guiding device having said nozzle device
CN113380663A (en) * 2020-03-09 2021-09-10 Hs高科技股份有限公司 Two-fluid nozzle for cleaning substrate

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