EP0013929B1 - Dispositif pour augmenter la force propulsive vers l'arrière d'un moteur de navire pourvu d'un engrenage réversible - Google Patents
Dispositif pour augmenter la force propulsive vers l'arrière d'un moteur de navire pourvu d'un engrenage réversible Download PDFInfo
- Publication number
- EP0013929B1 EP0013929B1 EP80100177A EP80100177A EP0013929B1 EP 0013929 B1 EP0013929 B1 EP 0013929B1 EP 80100177 A EP80100177 A EP 80100177A EP 80100177 A EP80100177 A EP 80100177A EP 0013929 B1 EP0013929 B1 EP 0013929B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- propeller
- closure plate
- propeller shaft
- drive member
- valve arrangement
- 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
Links
Images
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
- B63H1/28—Other means for improving propeller efficiency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
- B63H20/24—Arrangements, apparatus and methods for handling exhaust gas in outboard drives, e.g. exhaust gas outlets
- B63H20/245—Exhaust gas outlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for outboard marine engines
Definitions
- Outboard motors and so-called sterndrives for boats are equipped with an underwater exhaust to reduce noise pollution and for environmental reasons. Since the lowest possible position of the exhaust gas outlet is desirable, the exhaust gas duct is passed through the propeller hub in very many engine types. The desired goal is optimally achieved in this way, especially since the reaction force of the exhaust gas is thereby converted into additional forward thrust.
- the exhaust duct 1 can be shut off by a flap arrangement — located directly in front of its free end in the exemplary embodiments shown.
- this flap arrangement consists of a sector diaphragm 10 and a locking disk 20.
- the sector diaphragm 10 (FIG. 3) is inserted into an annular groove 11 in the hub 2.
- the locking disk 20 as the second part of the flap arrangement of the exemplary embodiments has in principle the same shape as the sector diaphragm, its outer diameter corresponds to the inner diameter of the exhaust duct 1, and it also has two sectors 25, 26, the size of which correspond to the sectors 15, 16 of the sector diaphragm .
- the locking disk 20 and the sector aperture 10 each have a centrally located through hole 27 and 17, respectively.
- the locking disk 20 is provided symmetrically on both sides of the bore 27 with two drivers 28, 29, which each protrude from the edge of the locking disk 20 from one edge of a sector 25, 26.
- the drivers are flat material strips and their main plane is perpendicular to the plane of the locking disk. An inclination of the drivers and / or a shovel-like twist are conceivable.
- the flap arrangement is not installed in the area of the outlet opening 4 of the propeller hub, but in the direction of the force flow in front of the propeller inside the motor shaft. It is important here to maintain the relative mobility of the elements forming the flap arrangement relative to one another and a driver arrangement that is exposed to the water.
- a further pressure disk 61 is used to accommodate the backward thrust of the propeller 50, which has an inside attachment with a running surface, via which it contributes to the centering of the propeller in that the drawn-in part of the sleeve 58 can be supported on it.
- the pressure plate 61 Radially outside the inner projection, the pressure plate 61 has an end face with which it is supported in the axial direction on the drawn-in part of the sleeve 58.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT80100177T ATE574T1 (de) | 1979-01-22 | 1980-01-15 | Vorrichtung zur erhoehung des rueckwaertsschubes von mit wendegetrieben ausgeruesteten bootsmotoren. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2902329 | 1979-01-22 | ||
DE19792902329 DE2902329C2 (de) | 1979-01-22 | 1979-01-22 | Vorrichtung zur Erhöhung des Rückwärtsschubes von mit Wendegetrieben ausgerüsteten Bootsmotoren |
DE19792911846 DE2911846A1 (de) | 1979-03-26 | 1979-03-26 | Vorrichtung zur erhoehung des rueckwaertsschubes von mit wendegetrieben ausgeruesteten bootsmotoren |
DE2911846 | 1979-03-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0013929A1 EP0013929A1 (fr) | 1980-08-06 |
EP0013929B1 true EP0013929B1 (fr) | 1982-01-20 |
Family
ID=25777507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80100177A Expired EP0013929B1 (fr) | 1979-01-22 | 1980-01-15 | Dispositif pour augmenter la force propulsive vers l'arrière d'un moteur de navire pourvu d'un engrenage réversible |
Country Status (3)
Country | Link |
---|---|
US (1) | US4306867A (fr) |
EP (1) | EP0013929B1 (fr) |
CA (1) | CA1140402A (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5209684A (en) * | 1990-04-16 | 1993-05-11 | Outboard Marine Corporation | Marine propulsion device |
US5161541A (en) * | 1991-03-05 | 1992-11-10 | Edentec | Flow sensor system |
US5251636A (en) * | 1991-03-05 | 1993-10-12 | Case Western Reserve University | Multiple thin film sensor system |
US5470263A (en) * | 1994-04-28 | 1995-11-28 | Brunswick Corporation | Method and apparatus for improving reverse thrust of a marine drive |
EP0758606A1 (fr) * | 1995-08-16 | 1997-02-19 | Schottel-Werft Josef Becker GmbH & Co KG. | Chapeau de moyeu pour hélices de bateau |
US7087027B2 (en) | 2002-04-22 | 2006-08-08 | Page Thomas C | Device and method for monitoring respiration |
US10584625B1 (en) * | 2017-04-27 | 2020-03-10 | Woodrow Woods | Vortex generating apparatus for use with marine exhaust systems for improved exhaust cooling |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3871324A (en) * | 1969-01-31 | 1975-03-18 | Brunswick Corp | Outboard propulsion unit exhaust discharge system |
US3563670A (en) * | 1969-01-31 | 1971-02-16 | Brunswick Corp | Marine propeller and its mounting |
US3754837A (en) * | 1972-06-05 | 1973-08-28 | Outboard Marine Corp | Variably ventilated propeller |
US4023353A (en) * | 1975-12-03 | 1977-05-17 | Hall Kimball P | Multi-flow marine jet-propulsion apparatus |
-
1980
- 1980-01-15 EP EP80100177A patent/EP0013929B1/fr not_active Expired
- 1980-01-16 US US06/112,438 patent/US4306867A/en not_active Expired - Lifetime
- 1980-01-21 CA CA000344094A patent/CA1140402A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1140402A (fr) | 1983-02-01 |
US4306867A (en) | 1981-12-22 |
EP0013929A1 (fr) | 1980-08-06 |
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