US3869967A - Air vent head, especially for ship{3 s tanks - Google Patents

Air vent head, especially for ship{3 s tanks Download PDF

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Publication number
US3869967A
US3869967A US416044A US41604473A US3869967A US 3869967 A US3869967 A US 3869967A US 416044 A US416044 A US 416044A US 41604473 A US41604473 A US 41604473A US 3869967 A US3869967 A US 3869967A
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US
United States
Prior art keywords
chamber
wall
air vent
vent head
communicating
Prior art date
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Expired - Lifetime
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US416044A
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English (en)
Inventor
Josef Lenz
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Individual
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Individual
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Publication of US3869967A publication Critical patent/US3869967A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/02—Ventilation; Air-conditioning
    • B63J2/10—Ventilating-shafts; Air-scoops

Definitions

  • An air vent head for ship tanks includes a connecting piece forming a conduit from a vent pipe to an outer chamber having an outer circumferential wall formed NOV. 16, 1972 Germany 2256144 with an opening at the bottom over the conduit
  • a inner chamber inside the outer chamber communi- U-S- ates the uter chamber through a circular ape 1 114/21 1 ture in the top flat portion of a common wall separat- Int. Cl.
  • the Field of Search inner chamber has opposed front faces formed with 114/211 openings communicating with the outside covered by lattices.
  • the inner chamber includes a ball float re- [56] Referenc C t sponsive to water entering for covering the communi- UNITED STATES PATENTS eating aperture.
  • a wall extends upward from a loca- 52 322 1/1866 Reynolds 98/76 to the Side of the bottom Opening a location 299:628 6/1884 Dickinson 98/76 the Common Wall generally tangential the common 475,010 5/1892 Costa 98/76 wall at the latter location.
  • the center lines of the inner chamber and the connecting piece are separated by FOREIGN PATENTS OR APPLICATIONS the center line of the outer chamber. 1,077,097 3/1960 Germany 114 211 1,270,977 6/1968 Germany 114/211 10 Clams, 2 Drawmg Flgures i 1 y F r" t 4 'V/ l A Ti z 5 4 AIR VENT HEAD, ESPECIALLY FOR SHIPS TANKS
  • the invention relates to a circular cylindrical air vent head, especially for ventilation of ships tanks including a first chamber at its circumference provided with a connecting piece for a vent pipe and a second chamber connected to the outside at the front side of the cylindrical head and connected to the first chamber by a communicating orifice in a common wall of both chambers.
  • PROBLEM It is an object of the invention to provide an air vent head of the described type which in connection with the simple cylindrical shape of both chambers guarantees an air stream with little turbulence and aerodynamic resistance.
  • the second chamber is arranged eccentrically within the first chamber to conduct the entire air stream from the air pipe undivided through a single wide channel to the communciating orifice and through this orifice into the second chamberjust as is done in the well known gooseneck air vent heads.
  • An exit from the second chamber with a smooth diversion of the air stream may be obtained by funnelshaped air channels with openings at their lower ends connected to the front side orifices of the second chamher.
  • the aerodynamic resistances at the entrance of the air stream into the air vent head may be diminished by said second chamber and said connecting piece being respectively staggered towards opposite sides of the vertical median plane of the air vent head.
  • FIG. 1 is a vertical sectional view through an air vent head according to the invention taken along the broken line 1-1 of FIG. 2 and FIG. 2 is a vertical sectional view along the line II--II of FIG. 1.
  • the air vent head shown in the drawing essentially has the shape of a circular cylinder with the cylindrical outside wall 1 and front side walls 2,2 and beneath is provided with a connecting piece 3 for an air vent pipe which connecting piece consists of a pipe 3a and a connecting flange 3b.
  • the casing consisting of the cylindrical outside wall I and the front side walls 2,2 enclose a first chamber 4.
  • This outer chamber 4 is connectable by the connecting piece 3 to a ships air vent pipe (not shown in the drawing) and is connected by a communicating orifice 6 to a second chamber 5.
  • This second chamber is connected to the outside via front side orifices 7,7, lattices 8-8 and funnel -shaped air channels 9,9 with exits 10,10 at their lower ends.
  • the second, inner chamber 5 is staggered to the side of the axis of the cylindrical wall 1 by an eccentricity E and is divided from the first chamber 4 by a circular cylindrical partition wall 11.
  • the boundary of the second chamber 5 is formed by the cylindrical outer wall 1 in an area extending from a connecting line 12 upwards to the communicating orifice 6 at the top of the inner chamber 5.
  • the inner chamber essentially has a circular cross section, and its upper orifice 6 is circularly cylindrical in flat sheet material.
  • An air guide web 13 is arranged beneath the second chamber which web extends from the cyllindrical wall 1 of the first chamber at a spot adjacent the connecting piece 3 tangentially to the cylindrical partition wall 1, thus ensuring an irrotational flow of the air stream entering the first chamber 4 via the pipe 3a.
  • the second chamber 5 as well as the connecting piece respectively are staggered towards opposite sides of the vertical median plane of the air vent head by eccentricities E and E respectively.
  • the inner second chamber may include a convential ball float 14 in order to automatically close the communciating orifice 6 when water from outside enters as may occur on ships.
  • the inner chamber 5 could have a square section other than circular provided that the partition wall be accomodated to the course of the cylindrical outer wall 1 in a manner to ensure an air flow which is free from diversions and bumps as far as possible.
  • REFERENCE NUMBERS cylindrical outside wall front side walls connecting piece for an air vent pipe pipe connecting flange first chamber.
  • An air vent head according to claim 1 wherein said second chamber if formed with front side orifices and further comprising funnel-shaped air channels formed with openings at their lower ends connected to the front side orifices of the second chamber.
  • An air vent head according to claim 1 and further comprising an air guide web is extending from the circumferential wall of the first chamber adjacent the connecting piece to the common wall.
  • a cylindrical vent head for ventilation of ship tanks comprising,
  • connecting means having a normally vertical axis defining a conduit for connection to the vent pipe of a ship tank
  • first means defining a first chamber having an outer wall connected to said connecting means covering the top of said first chamber and formed with a bottom opening at the bottom over said conduit,
  • second means defining a second chamber inside said first chamber separated from said first chamber by a common wall formed with a communicating orifice at the top,
  • said second chamber having at least one front wall formed with an opening comminicating with the outside
  • said first and second means coacting to define means for providing a single ventilating channel relatively free from turbulence and air resistance between said bottom opening and said communicating orifice.
  • a cylindrical vent head in accordance with claim 7 wherein said means for providing a single ventilating channel comprises means defining a wall extending upward from a location beside said bottom opening beneath said communicating orifice to a location on said common wall generally tengential to said common wall at the latter location.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Tents Or Canopies (AREA)
US416044A 1972-11-16 1973-11-15 Air vent head, especially for ship{3 s tanks Expired - Lifetime US3869967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2256144A DE2256144A1 (de) 1972-11-16 1972-11-16 Luefterkopf, insbesondere fuer luftrohre von schiffstanks

Publications (1)

Publication Number Publication Date
US3869967A true US3869967A (en) 1975-03-11

Family

ID=5861878

Family Applications (1)

Application Number Title Priority Date Filing Date
US416044A Expired - Lifetime US3869967A (en) 1972-11-16 1973-11-15 Air vent head, especially for ship{3 s tanks

Country Status (12)

Country Link
US (1) US3869967A (sv)
JP (1) JPS49134093A (sv)
BE (1) BE807051A (sv)
CA (1) CA1003681A (sv)
DE (1) DE2256144A1 (sv)
ES (1) ES420499A1 (sv)
FR (1) FR2207057A1 (sv)
GB (1) GB1466384A (sv)
IT (1) IT999402B (sv)
NL (1) NL7315644A (sv)
NO (1) NO138244C (sv)
SE (1) SE395256B (sv)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061221A (en) * 1976-02-13 1977-12-06 Hitachi Metals, Ltd. Dust controlling loading chute apparatus for particulate material
US4241645A (en) * 1978-08-10 1980-12-30 Le Comte Adolf Ventilator
US5762093A (en) * 1995-03-29 1998-06-09 Attwood Corporation Fuel overflow restrictor/water intake restraining devices
US20040147834A1 (en) * 2003-01-17 2004-07-29 Mednovus, Inc. Security screening method and apparatus
US6939219B1 (en) * 2004-04-01 2005-09-06 Randell P. Pollen Powered ventilator
US20060022670A1 (en) * 2004-07-31 2006-02-02 Mednovus, Inc. Magnetic resonance screening portal with combination sensing
US20070057786A1 (en) * 2005-09-13 2007-03-15 Mednovus, Inc. Ferromagnetic threat warning system
US7239134B2 (en) 2003-01-17 2007-07-03 Mednovus, Inc. Screening method and apparatus
EP2628676A1 (en) * 2012-02-17 2013-08-21 John Gjerde AS Air vent head
CN104896117A (zh) * 2015-05-21 2015-09-09 舟山市恒威船舶配件有限公司 一种船用空气管头
US20170240262A1 (en) * 2014-08-26 2017-08-24 Ventiq As Valve for ventilation of a tank
CN117775255A (zh) * 2024-02-27 2024-03-29 威海瀚克船舶科技有限公司 一种用于船舶通风的防灌水通风装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113353230B (zh) * 2021-08-09 2021-10-26 丹华海洋工程装备(南通)有限公司 一种用于船舶的通风装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US52322A (en) * 1866-01-30 Haevy eeynolds
US299628A (en) * 1884-06-03 Heney s
US475010A (en) * 1892-05-17 Aspirator or ventilator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US52322A (en) * 1866-01-30 Haevy eeynolds
US299628A (en) * 1884-06-03 Heney s
US475010A (en) * 1892-05-17 Aspirator or ventilator

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061221A (en) * 1976-02-13 1977-12-06 Hitachi Metals, Ltd. Dust controlling loading chute apparatus for particulate material
US4241645A (en) * 1978-08-10 1980-12-30 Le Comte Adolf Ventilator
US5762093A (en) * 1995-03-29 1998-06-09 Attwood Corporation Fuel overflow restrictor/water intake restraining devices
US7106056B2 (en) * 2003-01-17 2006-09-12 Mednovus, Inc. Security screening method and apparatus
US20040147834A1 (en) * 2003-01-17 2004-07-29 Mednovus, Inc. Security screening method and apparatus
US7239134B2 (en) 2003-01-17 2007-07-03 Mednovus, Inc. Screening method and apparatus
US6939219B1 (en) * 2004-04-01 2005-09-06 Randell P. Pollen Powered ventilator
US20060022670A1 (en) * 2004-07-31 2006-02-02 Mednovus, Inc. Magnetic resonance screening portal with combination sensing
US20070057786A1 (en) * 2005-09-13 2007-03-15 Mednovus, Inc. Ferromagnetic threat warning system
EP2628676A1 (en) * 2012-02-17 2013-08-21 John Gjerde AS Air vent head
WO2013120987A1 (en) * 2012-02-17 2013-08-22 John Gjerde As Air vent head
CN104271442A (zh) * 2012-02-17 2015-01-07 约翰·耶勒船舶配件有限公司 空气管头
US20170240262A1 (en) * 2014-08-26 2017-08-24 Ventiq As Valve for ventilation of a tank
US10301000B2 (en) * 2014-08-26 2019-05-28 Ventiq As Valve for ventilation of a tank
CN104896117A (zh) * 2015-05-21 2015-09-09 舟山市恒威船舶配件有限公司 一种船用空气管头
CN117775255A (zh) * 2024-02-27 2024-03-29 威海瀚克船舶科技有限公司 一种用于船舶通风的防灌水通风装置

Also Published As

Publication number Publication date
IT999402B (it) 1976-02-20
DE2256144B2 (sv) 1975-04-03
GB1466384A (en) 1977-03-09
NO138244B (no) 1978-04-24
JPS49134093A (sv) 1974-12-24
NO138244C (no) 1978-08-02
BE807051A (fr) 1974-03-01
CA1003681A (en) 1977-01-18
NL7315644A (sv) 1974-05-20
DE2256144A1 (de) 1974-06-06
SE395256B (sv) 1977-08-08
FR2207057A1 (sv) 1974-06-14
ES420499A1 (es) 1976-04-01

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