NO129049B - - Google Patents
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- Publication number
- NO129049B NO129049B NO389769A NO389769A NO129049B NO 129049 B NO129049 B NO 129049B NO 389769 A NO389769 A NO 389769A NO 389769 A NO389769 A NO 389769A NO 129049 B NO129049 B NO 129049B
- Authority
- NO
- Norway
- Prior art keywords
- rudder
- ship
- channels
- starboard
- seen
- Prior art date
Links
- 239000000446 fuel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
- C10G25/003—Specific sorbent material, not covered by C10G25/02 or C10G25/03
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
Description
Skipsror. Ship's rudder.
Denne oppfinnelse vedrører et skipsror, og særlig, men ikke utelukkende, ror for skip med propelldrift. This invention relates to a ship's rudder, and in particular, but not exclusively, rudder for ships with propeller drive.
De vanlige skipsror har stor motstand mot vannet. Når roret legges om, opptrer det på rorets motstrømside et oppstuv-ingstrykk, og på medstrømsiden et under-trykk av en slik størrelse, at det frembringes en sterk hvirveldannelse i rorets om-givelser. Disse forhold virker hemmende på skipets hastighet, uten at de er nødvendige for den ønskete påvirkning av fartsretnin-gen. The usual ship's rudders have great resistance to the water. When the rudder is repositioned, a buoyancy pressure occurs on the upstream side of the rudder, and on the downstream side a negative pressure of such magnitude that a strong vortex is produced in the rudder's surroundings. These conditions inhibit the ship's speed, without being necessary for the desired influence on the direction of travel.
Hensikten med oppfinnelsen er hoved-sakelig den å fremskaffe et skipsror, som har en lavere strømningsmotstand og som gir minsket hvirveldannelse, for på denne måte å oppnå at skipets driftsytelse kan utnyttes bedre, så at hastigheten kan økes med det samme forbruk av drivstoff, eller at forbruket av drivstoff kan minskes ved samme hastighet. The purpose of the invention is mainly to provide a ship's rudder, which has a lower flow resistance and which produces reduced vortex formation, in order to achieve in this way that the ship's operating performance can be better utilized, so that the speed can be increased with the same consumption of fuel, or that fuel consumption can be reduced at the same speed.
Dessuten er det et formål med oppfinnelsen å fremskaffe et skipsror som gir en særlig høy tverrkraft, for å minske den nødvendige utslagsvinkel ved omleggingen av roret, og/eller å kunne minske rorets dimensjoner, avlaste roranlegget og å bedre skipets manøvrerbarhet. Furthermore, it is an object of the invention to provide a ship's rudder which provides a particularly high lateral force, in order to reduce the necessary angle of attack when the rudder is turned, and/or to be able to reduce the rudder's dimensions, relieve the rudder system and improve the ship's manoeuvrability.
Ifølge oppfinnelsen er rorlegemet utstyrt med over hverandre anordnete kanaler som løper gjennom rorlegemet vekselvis fra babord fortil mot styrbord baktil og fra styrbord fortil mot babord baktil. According to the invention, the rudder body is equipped with superimposed channels which run through the rudder body alternately from port front to starboard rear and from starboard front to port rear.
Ifølge et ytterligere trekk ved oppfinnelsen ligger det sted hvor kanalene krysser hverandre, sett i grunnriss, bakenfor rorlegemets dreieakse. According to a further feature of the invention, the place where the channels cross each other, seen in plan view, is located behind the axis of rotation of the rudder body.
De ytre begrensningslinjer for rorle- The outer limit lines for the rudder
gemet kan på i og for seg kjent måte være strømlinjeformet. Men selve roret kan også ha form av en flat plate med plane vegg-flater. the cache can be streamlined in a manner known per se. But the rudder itself can also take the form of a flat plate with flat wall surfaces.
Oppfinnelsen skal beskrives nærmere under henvisning til den medfølgende teg-ning, hvor: Fig. 1 viser et sideriss av et skipsror ifølge oppfinnelsen, på et skip med pro-pell. Fig. la viser et snitt etter linjen A—B. Fig. 2 viser et riss av roret, sett for-fra. Fig. 3 viser et riss av roret, sett bak-fra. The invention shall be described in more detail with reference to the accompanying drawing, where: Fig. 1 shows a side view of a ship's rudder according to the invention, on a ship with a propeller. Fig. la shows a section along the line A—B. Fig. 2 shows a view of the rudder, seen from the front. Fig. 3 shows a view of the rudder, seen from behind.
Rorlegemet er vist ved 1, mens det ved 2 er vist de kanaler, som løper gjennom The rudder body is shown at 1, while at 2 the channels that run through are shown
rorlegemet vekselvis fra babord fortil mot styrbord baktil, og fra styrbord fortil mot babord baktil. Kanalenes akser, som er be-tegnet med I, løper ved dette utførelses-eksempel, når roret står i midtstilling, omtrent vinkelrett mot propellvingene II. Krysspunktene for kanalene, sett i grunnriss, befinner seg, slik det særlig fremgår av fig. la, bakenfor dreieaksen for rorlegemet, som ved dette utførelseseksempel er strømlinjeformet. the rudder alternately from port front to starboard rear, and from starboard front to port rear. The axes of the channels, which are denoted by I, run in this design example, when the rudder is in the middle position, approximately perpendicular to the propeller blades II. The crossing points for the channels, seen in ground plan, are located, as can be seen in particular from fig. la, behind the axis of rotation for the rudder body, which in this embodiment is streamlined.
Ved skipets bevegelse fremover eller ved propelleren frembringes det en vann-strømning, som i området for rortverrsnittet for omtrent 20 %'s vedkommende kan strømme fritt gjennom rortverrsnittet; idet summen av kanaltverrsnittene ved rorets midtskipsstilling andrar til omtrent 20 % av det totale rortverrsnitt (fig. 2 eller 3), når man legger dimensjonene i utførelses-eksemplet til grunn. Det strømningstrykk som derved blir avlastet i området ved rortverrsnittet, kan derved muliggjøre økning av fartshastigheten for skipet og/eller inn-sparing av drivstoff. When the ship moves forward or by the propeller, a water flow is produced, which in the area of the rudder cross-section can flow freely through the rudder cross-section for approximately 20%; as the sum of the channel cross-sections at the rudder amidships position changes to approximately 20% of the total rudder cross-section (fig. 2 or 3), when the dimensions in the design example are taken as a basis. The flow pressure that is thereby relieved in the area of the rudder cross-section can thereby enable an increase in the speed of the ship and/or saving of fuel.
Ved omlegging av roret blir ikke bare rorets ytterflate påvirket av strømnings-trykk på tilstrømningssiden, men også veggflatene i de kanaler i rorlegemet som gjennomstrømmes av vannet. Derved blir tverrkraften eller rorvirkningen øket, så at den utslagsvinkel for roret som er nød-vendig for å frembringe en kursendring, kan være mindre, og/eller roret kan dimensjoneres mindre. Samtidig blir hele roranlegget avlastet. Selve roret, rormaskinen og de deler som tjener til overføring av ror-kraften, kan dimensjoneres lavere. Et skip utstyrt med et ror ifølge oppfinnelsen rea-gerer dessuten raskere på omleggingen av roret enn når det er utstyrt med en av de vanlige rorformer, og fordi rorutslags-vinkelen er lavere, er også de hastighetstap som opptrer ved kursendringer, lavere. Den lavere utslagsvinkel er av særlig stor for-del for havgående skip, fordi det på havet på grunn av vind og bølger er nødvendig å omlegge roret til stadighet, for å holde kursen. When repositioning the rudder, not only the outer surface of the rudder is affected by flow pressure on the inflow side, but also the wall surfaces in the channels in the rudder body through which the water flows. Thereby, the lateral force or rudder effect is increased, so that the angle of attack for the rudder which is necessary to produce a course change can be smaller, and/or the rudder can be dimensioned smaller. At the same time, the entire rudder system is relieved. The rudder itself, the rudder machine and the parts that serve to transmit the rudder force can be dimensioned lower. A ship equipped with a rudder according to the invention also reacts more quickly to the repositioning of the rudder than when it is equipped with one of the usual rudder shapes, and because the rudder opening angle is lower, the speed losses that occur during course changes are also lower. The lower angle of attack is of particular advantage for ocean-going ships, because at sea due to wind and waves it is necessary to constantly reposition the rudder in order to keep the course.
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7080968 | 1968-10-01 | ||
JP6383769 | 1969-08-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO129049B true NO129049B (en) | 1974-02-18 |
Family
ID=26404957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO389769A NO129049B (en) | 1968-10-01 | 1969-09-30 |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE739652A (en) |
DE (1) | DE1949590C2 (en) |
DK (1) | DK133700B (en) |
FR (1) | FR2019604A1 (en) |
GB (1) | GB1288806A (en) |
NL (1) | NL149466B (en) |
NO (1) | NO129049B (en) |
SE (1) | SE372555B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3054153B2 (en) * | 1989-02-28 | 2000-06-19 | 水澤化学工業株式会社 | Developer for pressure-sensitive copying paper |
DK0556424T3 (en) * | 1992-02-19 | 1999-01-25 | Nestle Sa | Process for Decolourizing Fatty Acid Ester, as well as Food and Cosmetic Preparation with Such Decolorized Ester |
DE4438306A1 (en) * | 1994-10-26 | 1996-05-02 | Sued Chemie Ag | Pigments for print media using the inkjet printing process |
DE4438305A1 (en) * | 1994-10-26 | 1996-05-02 | Sued Chemie Ag | Pigment for coating printing papers, in particular color developer pigment for carbonless papers |
ATE201226T1 (en) * | 1996-07-18 | 2001-06-15 | Ica Chemie Ag | METHOD FOR PREVENTING HIGH TEMPERATURE CORROSION |
US6027755A (en) * | 1997-04-21 | 2000-02-22 | Engelhard Corporation | Bleaching earth product and method for producing and using the same |
DE102005012638A1 (en) * | 2005-03-18 | 2006-09-21 | Süd-Chemie AG | Granules of natural layered minerals and process for their preparation |
RU2010130541A (en) | 2007-12-21 | 2012-01-27 | Грейс Гмбх Унд Ко.Кг (De) | BIOFUEL PROCESSING |
US8088277B2 (en) * | 2008-06-11 | 2012-01-03 | General Electric Company | Methods and system for removing impurities from heavy fuel |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB856756A (en) * | 1956-11-19 | 1960-12-21 | Ca Nat Research Council | Activation of bleaching clay |
-
1969
- 1969-09-26 GB GB1288806D patent/GB1288806A/en not_active Expired
- 1969-09-26 SE SE1326469A patent/SE372555B/xx unknown
- 1969-09-30 NO NO389769A patent/NO129049B/no unknown
- 1969-09-30 BE BE739652D patent/BE739652A/xx unknown
- 1969-10-01 NL NL6914854A patent/NL149466B/en not_active IP Right Cessation
- 1969-10-01 DE DE19691949590 patent/DE1949590C2/en not_active Expired
- 1969-10-01 FR FR6933450A patent/FR2019604A1/fr not_active Withdrawn
- 1969-10-01 DK DK522069A patent/DK133700B/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE739652A (en) | 1970-03-02 |
FR2019604A1 (en) | 1970-07-03 |
NL149466B (en) | 1976-05-17 |
DK133700B (en) | 1976-07-05 |
DK133700C (en) | 1976-11-22 |
NL6914854A (en) | 1970-04-03 |
SE372555B (en) | 1974-12-23 |
DE1949590A1 (en) | 1970-04-23 |
DE1949590C2 (en) | 1983-01-13 |
GB1288806A (en) | 1972-09-13 |
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