DE748218C - Bilge device for ships - Google Patents

Bilge device for ships

Info

Publication number
DE748218C
DE748218C DEK157442D DEK0157442D DE748218C DE 748218 C DE748218 C DE 748218C DE K157442 D DEK157442 D DE K157442D DE K0157442 D DEK0157442 D DE K0157442D DE 748218 C DE748218 C DE 748218C
Authority
DE
Germany
Prior art keywords
nozzle
screw
bilge
exhaust gases
water
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
DEK157442D
Other languages
German (de)
Inventor
Dipl-Ing Ludwig Kort
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.)
LUDWIG KORT DIPL ING
Original Assignee
LUDWIG KORT DIPL ING
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 LUDWIG KORT DIPL ING filed Critical LUDWIG KORT DIPL ING
Priority to DEK157442D priority Critical patent/DE748218C/en
Application granted granted Critical
Publication of DE748218C publication Critical patent/DE748218C/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
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)

Description

Lenzvorrichtung für Schiffe Es ist bereits vorgeschlagen, bei düsenartigen Schraubenumimantelungen durch Löcher in der Ummantelung vor der Schraubenebene eine Saugkraft im Inneren des Düsenkörpers zu erzeugen, die nutzbringend verwendet werden kann. Bei dieser Ausführung wird aber dem Schraubenwasser. schon Energie entzogen, bevor ihm Energie zugeführt wird. Außerdem beeinflussen die Bohrungen vor dem Propellerflügel den Wirkungsgrad der Schraube.Bilge device for ships It has already been proposed in the case of jet-type Screw jackets through holes in the jacket in front of the screw plane To generate suction force inside the nozzle body, which can be used beneficially can. In this version, however, the screw water. already withdrawn energy, before it is energized. Also affect the holes in front of the propeller blade the efficiency of the screw.

Die Erfindung besteht nun darin, daß das hintere Ende der hohlen Schrauubenum:mantelungals Strahlapparat ausgebildet ist, um hier mit Hilfe der Strahlenergie eine Saugkraft zu erzeugen, die zum Lenzen, zum Absaugen oder auch zu anderen Zwecken benutzt werden kann. Die zur Förderung des Lenzwassers oder der Abgase erforderliche Leistung wird nunmehr dem Schraubenwasser hinter der Schraube entzogen, wodurch kein Verlust an Schraubenwirkungsgrad ,entsteht. Die gesamte Energie des austretendenWassers stellt an sich einen Verlust dar. Durch die Einrichtung gemäß der Erfindung gelingt es, einen Teil .dieses Verlustes wieder nutzbringend zu verwerten.The invention now consists in that the rear end of the hollow Schrauubenum: mantelungals Jet apparatus is designed to generate suction here with the help of jet energy to generate that are used for bilge, suction or other purposes can. The power required for pumping the bilge water or the exhaust gases becomes now withdrawn from the screw water behind the screw, so there is no loss Screw efficiency, arises. Provides all the energy of the exiting water in itself represents a loss. The device according to the invention makes it possible to recycle part of this loss in a profitable way.

Auf ider Zeichnung ist ein Ausführungsbeispiel des Gegenstandes der Erfindung dargestellt, und zwar zeigt Abb. i eine doppehvandige Schraubenummantelung im Schnitt. Die Schraube S treibt das Wasser durch die hohle Ummantelung (Düse) D, deren Hohlraum durch die Leitung R mit dem Schiffsinneren verbunden ist. Der äußere :Mäntel der Düse D ist hinten länger und von etwas größerem Durchmesser als der innere Mantel. Dadurch entsteht die Saugwirkung eines Strahlapparates, wenn die Schraube das Wasser durch die Düse hindurehtreibt.On ider drawing is an embodiment of the subject matter of Invention shown, namely Fig. I shows a double-walled screw jacket on average. The screw S drives the water through the hollow casing (nozzle) D, the cavity of which is connected to the interior of the ship by the line R. Of the outer: the jacket of the nozzle D is longer at the rear and of a slightly larger diameter than the inner coat. This creates the suction effect of a jet device when the screw drives the water through the nozzle.

Wenn die hier erzeugte Saugkraft nicht zum Lenzen, sondern zum Absaugen der Abgase benutzt wird, so ist es von großer Wichtigkeit, daß die Abgase möglichst weit gekühlt «erden, weil ja durch die _Abkühlung das Volumen dieser abzusaugenden Gase Verringert wird. Um diese Kühlung der Abgase zu verbessern, kann man die Abgasleitung R tangential an -den Düsenkörper heranführen. Dadurch werden die Abgase innerhalb der vom Wasser kräftig gtkiihlten Düsenwandungen größere Wege zurücklegen müssen, bevor sie aus der Düse austreten, so daß sie also besser gekühlt werden. Diese Kühlwirkuai; könnte natürlich auch durch entsprechende Kühlrippen oder durch zwangläufige Umführung der Abgase usw. vor ihrem Austritt noch erhöht werden.If the suction generated here is not for bilge but for suction the exhaust gas is used, it is of great importance that the exhaust gases as possible deeply cooled «because the _cooling reduces the volume of this to be sucked off Gases is reduced. The exhaust pipe can be used to improve this cooling of the exhaust gases R tangentially approach the nozzle body. This will keep the exhaust gases inside the nozzle walls, which are strongly cooled by the water, have to cover longer distances, before they exit the nozzle, so that they are better cooled. This cooling effect; could of course also by means of appropriate cooling fins or by compulsory bypassing the exhaust gases etc. are increased before they exit.

Die Abb. 2 zeigt die tangentiale Zuführung der Abgase an den Düsenkörper.Fig. 2 shows the tangential feed of the exhaust gases to the nozzle body.

Claims (2)

PATENTANSPRÜCHE i. Lenzvorrichtung für Schifte. bei denen die .Schraube in einer als Hohlkörper ausgebildeten Urn.m:antelung (Düse) arbeitet, deren Hohlraum durch eine Rohrleitung mit dem Schiffsinneren verbunden ist, dadurch gekennzeichnet, daß der Hohlraum der Düse am Austrittsende des Schraubenwassers nach dem Düseninneren zu offen ist. PATENT CLAIMS i. Bilge device for boats. where the .screw in an urn.m: antelung (nozzle) designed as a hollow body, the hollow space of which works is connected to the interior of the ship by a pipeline, characterized in that that the cavity of the nozzle at the outlet end of the screw water to the nozzle interior is too open. 2. Lenzvorrichtung nach Anspruch i, dadurch gekennzeichnet, daß die - Verbindungsleitung (R) tangential .an der Düse angeschlossen ist und daß innerhalb der Düse besondere Kühlrippe:, zur Kühlung der Abgase vor ihrem Austritt angeordnet sind. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand ider Technik ist im -Erteilungsverfa:hren folgende Druckschrift in Betracht gezogen worden: deutsche Patentschrift ...... Nr. 722 8q.2.2. Bilge device according to claim i, characterized in that the connecting line (R) is tangentially connected to the nozzle and that special cooling ribs are arranged within the nozzle for cooling the exhaust gases before they exit. To distinguish the subject of the application from the state of the art, the following publication was considered in the granting procedure: German patent specification ...... No. 722 8q.2.
DEK157442D 1940-04-27 1940-04-27 Bilge device for ships Expired DE748218C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK157442D DE748218C (en) 1940-04-27 1940-04-27 Bilge device for ships

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK157442D DE748218C (en) 1940-04-27 1940-04-27 Bilge device for ships

Publications (1)

Publication Number Publication Date
DE748218C true DE748218C (en) 1944-10-30

Family

ID=7253678

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK157442D Expired DE748218C (en) 1940-04-27 1940-04-27 Bilge device for ships

Country Status (1)

Country Link
DE (1) DE748218C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196093B (en) * 1962-11-19 1965-07-01 Herbert Moennich Double-walled propeller guide ring
EP0298053A1 (en) * 1987-07-01 1989-01-04 AKZO S.r.l. Propulsor for boats having counterrotating propellers with nozzle
US4979917A (en) * 1986-10-31 1990-12-25 Haynes Hendrick W Marine propulsion device with gaseous boundry layer for a thrust jet flow stream exhibiting stealth and ice lubrication properties
US5588886A (en) * 1994-06-21 1996-12-31 Davis; Grover W. Air encircling marine propulsion apparatus
US6190218B1 (en) 1999-09-27 2001-02-20 Outboard Marine Corporation Pump jet with redirected exhaust gas through stator vane for drag reduction

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE722842C (en) * 1937-10-10 1942-07-23 Hermann Heinrich Nozzle for a propeller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE722842C (en) * 1937-10-10 1942-07-23 Hermann Heinrich Nozzle for a propeller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196093B (en) * 1962-11-19 1965-07-01 Herbert Moennich Double-walled propeller guide ring
US4979917A (en) * 1986-10-31 1990-12-25 Haynes Hendrick W Marine propulsion device with gaseous boundry layer for a thrust jet flow stream exhibiting stealth and ice lubrication properties
EP0298053A1 (en) * 1987-07-01 1989-01-04 AKZO S.r.l. Propulsor for boats having counterrotating propellers with nozzle
US4832570A (en) * 1987-07-01 1989-05-23 Akzo S.R.L. Boat propeller having counter-rotating screws and provided with a nozzle
US5588886A (en) * 1994-06-21 1996-12-31 Davis; Grover W. Air encircling marine propulsion apparatus
US6190218B1 (en) 1999-09-27 2001-02-20 Outboard Marine Corporation Pump jet with redirected exhaust gas through stator vane for drag reduction

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