US2133458A - Cooling system for sideboard motors - Google Patents
Cooling system for sideboard motors Download PDFInfo
- Publication number
- US2133458A US2133458A US118167A US11816736A US2133458A US 2133458 A US2133458 A US 2133458A US 118167 A US118167 A US 118167A US 11816736 A US11816736 A US 11816736A US 2133458 A US2133458 A US 2133458A
- Authority
- US
- United States
- Prior art keywords
- water
- cooling
- jacket
- sideboard
- cooling system
- 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 - Lifetime
Links
- 238000001816 cooling Methods 0.000 title description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
- F01P3/202—Cooling circuits not specific to a single part of engine or machine for outboard marine engines
-
- 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 marine engines
Definitions
- the invention relates to a cooling system for outboard'engines, and" more particularly sideboard engines, and the special arrangement of the feeding and discharge conduits both extending with their free ends into the water.
- the object of the invention is to so devise the cooling circuit that the water is driven therethrough by the combined effect of the admission pressure due to the travel of the vessel and the suction generated in the discharge branch due to centrifugal force.
- This object is4 attained by the provision of a feeding pipe extending substantially vertically from the motor down into-the water and discharge channels formed in the hollow propeller shaft and the propeller vanes.
- This arrangement will constitute a circuit of the least length and high cooling effect, no separate driving means being required for impelling the water through the cooling jacket of the motor.
- Another object of the invention is to reduce weight and dimension of the unit and to render the motor compact by articulating a projecting feeding pipe of the cooling system upon the motor thereby facilitating the evacuation and the transport of the motor.
- Fig. l is a longitudinal sectional elevation of the outboard motor and cooling circuit on the broken line I--I of Fig. 2;
- Fig. 2 is a plane view, partly in section, on the line II-lI of Fig. l;
- Fig. 3 isan end view of the outboard-motor unit.
- the sideboard motor comprises the engine cylinder 4, the crank case 5, a ywheel-magneto device 6, a starting appliance 1 attached to the flywheel, the propeller shaft 8, a fuel tank 8 placed above the engine cylinder 4, a muumbler 25 arranged -by the side of, anddirectly connected to, the motor, and a carbureter III, all these items being combined to form a.- unit.
- crank case 5 laterally projects a sleeve II designed to interconnect the said unit with a tubui ⁇ lar carrier I2 projecting from the side board of a boat.
- the propeller shaft 8 is arranged transversely (ci. 11s- 17) to the crank shaft of the engine and parallel to the axis of the engine cylinder i, the drive being transmitted thereto through the intermediary of a worm or helical gear I5 the reduction ratio of which is preferably one half.
- 'I'he water cooling system of the motor cylinder is composed of a ⁇ trunk I8 pivotally articulated to the bottom part of the unit through a swing valve or hollow pivot I9, channels 26 leading to the water jacket 21 of themotor cylinder l, and other channels 28 interconnecting the said jacket to the inner end of the hollow propeller shaft 8, the discharge being made through said shaft and holes I6 of the vanes of the propeller I1.
- the operation of the water cooling conduit is as follows.
- the nozzle Before dismounting the unit from the boat, the nozzle can be swung upwards lengthwise the unit as shown in Fig. 1 by .dotted lines and in Fig. 2 by full lines. Then air can enter the nozzle through the mouth- 18a, permitting the evacuation of the entire system from water which flows out through the propeller shaft-and propeller.
- the unit thus made lighter and compacter can now be handled more easily.
Landscapes
- Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
Oct. 1s', v1938.
COOLING SYSTEM FOR SIDEBOARD` MOTORS original Filed Nov. 2, 195s 3 Sheets-Shed 1 oct. 1s, 193s. A. LESAGE 2,133,458
cooLING sYSTEM FOR sIDEBoARDMoToRs Original `Filed'Nov. 2, 1935 3 Sheets-Sheet 2 Hl Inventor Oct. 18, 1938. A. LESAGE COOLING SYSTEM Fon sIDEoARn MoToRs,
Original Filed Nov. 2, 1935 4 3 Sheets-Sheet 3 Inventor y@ aww 7 Patented Oct. 18, 1938 UNITED STATES vPATENTl OFFICE Original application November 2, 1933, Serial No.A 696,303. Divided and this `application December 29, 1936, Serial N o. 118,167. In Germany November 5, 1932 4 Claims.
This application is a division of my copending application Serial No. 696,303, filed November 2, i
1933, now Patent No. 2,070,364.
The invention relates to a cooling system for outboard'engines, and" more particularly sideboard engines, and the special arrangement of the feeding and discharge conduits both extending with their free ends into the water.
The object of the invention is to so devise the cooling circuit that the water is driven therethrough by the combined effect of the admission pressure due to the travel of the vessel and the suction generated in the discharge branch due to centrifugal force.
This object is4 attained by the provision of a feeding pipe extending substantially vertically from the motor down into-the water and discharge channels formed in the hollow propeller shaft and the propeller vanes. This arrangement will constitute a circuit of the least length and high cooling effect, no separate driving means being required for impelling the water through the cooling jacket of the motor.
Another object of the invention is to reduce weight and dimension of the unit and to render the motor compact by articulating a projecting feeding pipe of the cooling system upon the motor thereby facilitating the evacuation and the transport of the motor.
In the annexed drawings, which form a part of this specification, by way of example a sideboard motor in connection with the cooling appliance according to the invention is represented.
Fig. l is a longitudinal sectional elevation of the outboard motor and cooling circuit on the broken line I--I of Fig. 2;
Fig. 2 is a plane view, partly in section, on the line II-lI of Fig. l;
Fig. 3 isan end view of the outboard-motor unit. l
Like numerals denote like parts throughout all figures of the drawings.
The sideboard motor comprises the engine cylinder 4, the crank case 5, a ywheel-magneto device 6, a starting appliance 1 attached to the flywheel, the propeller shaft 8, a fuel tank 8 placed above the engine cylinder 4, a muiiler 25 arranged -by the side of, anddirectly connected to, the motor, and a carbureter III, all these items being combined to form a.- unit. From the ,crank case 5 laterally projects a sleeve II designed to interconnect the said unit with a tubui `lar carrier I2 projecting from the side board of a boat.
The propeller shaft 8 is arranged transversely (ci. 11s- 17) to the crank shaft of the engine and parallel to the axis of the engine cylinder i, the drive being transmitted thereto through the intermediary of a worm or helical gear I5 the reduction ratio of which is preferably one half.
'I'he water cooling system of the motor cylinder is composed of a `trunk I8 pivotally articulated to the bottom part of the unit through a swing valve or hollow pivot I9, channels 26 leading to the water jacket 21 of themotor cylinder l, and other channels 28 interconnecting the said jacket to the inner end of the hollow propeller shaft 8, the discharge being made through said shaft and holes I6 of the vanes of the propeller I1.
The operation of the water cooling conduit is as follows.
When the nozzle I8 is swung down as shown in Fig. 1 in full lines its water admission opening I8a is placed in the direction of travel of the boat so that the pressure generated therein by the reactionof the water will rise a Water stream to the valve I8 and further through the channel 26 into the jacket 21. A boss I8b of the nozzle striking an abutment 18a of the crank case 5 will secure the nozzle I8 .in its right working position against the reaction of the water. T he .cooling water having passed the jacket 21 is discharged through the channel 28', the bore of theV propeller shaft 8 and the discharge holes in the vanes of the propeller I1, a suction eiect due to centrifugal force assisting the circulation in the conduit. Before dismounting the unit from the boat, the nozzle can be swung upwards lengthwise the unit as shown in Fig. 1 by .dotted lines and in Fig. 2 by full lines. Then air can enter the nozzle through the mouth- 18a, permitting the evacuation of the entire system from water which flows out through the propeller shaft-and propeller. The unit thus made lighter and compacter can now be handled more easily.
I claim: 1. 1n combination with an outboard motor unit, including an internal combustion engine, a. cooling jacket for said engine,"a hollow propeller shaft communicating with said jacket, and a propeller having cooling water discharge apertures communicating with the interior of said shaft, a water admission pipe communicating with said jacket whereby cooling water will circulate successively through said pipe, said jacket and said shaft, and out through said apertures, said pipe being pivotally connected to said unit so that starts and whenswung above the water level automatic discharge of the circuit takes place.
2. The combination with an outboard unit, of on internal combustion engine, a cooling jacket of said engine, and a circuit interconnected with said jacket, including an admission branch and a discharge branch, said admission branch including atubular nozzle with its mouth facing in the direction of travel and a pivotal connection permitting adjusting said nozzle to a lower operative circulation position or to an upper inoperative and totally discharging position, and said discharge branch including a hollow propeller shaft and propeller vanes, the latter having discharge apertures radially spaced from the propeller axis.
3. In combination with an outboard motor unit, including an internal combustion engine, a cooling jacket for said engine, a hollow propeller shaft communicating with said jacket, a propeller ,having cooling water discharge apertures communicating with the interior of said shaft, a Water admission pipe having its lower'water adg mission aperture facing in the direction of travel of the motorl boat, in water receiving position,
and a hollow adjustable pivot device located at the upper end of said pipe, providing communication between said pipe and said cooling jacket and permitting adjustment of thepipe from operative vertical to inoperative horizontal position. 4. The combination with an outboard motor unit, of an internal combustion engine, a cooling jacket of said engine, and a circuit nterconnected with said jacket, including an admission branch and a discharge branch, said admission branch including a tubular nozzle with its mouth facing in the direction of travel of the motor, in water receiving position, and a pivotal connection in the shape of an adjustable cocklike articulation permitting adjustment of said nozzle to a lower operative circulation position or to an upper inoperative and totally discharg-v ALFRED LESAGE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US118167A US2133458A (en) | 1933-11-02 | 1936-12-29 | Cooling system for sideboard motors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US696303A US2070364A (en) | 1932-11-05 | 1933-11-02 | Outboard motor |
US118167A US2133458A (en) | 1933-11-02 | 1936-12-29 | Cooling system for sideboard motors |
Publications (1)
Publication Number | Publication Date |
---|---|
US2133458A true US2133458A (en) | 1938-10-18 |
Family
ID=26816037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US118167A Expired - Lifetime US2133458A (en) | 1933-11-02 | 1936-12-29 | Cooling system for sideboard motors |
Country Status (1)
Country | Link |
---|---|
US (1) | US2133458A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2606541A (en) * | 1947-10-16 | 1952-08-12 | Lutz Otto | Internal-combustion engine |
US2630844A (en) * | 1950-06-29 | 1953-03-10 | Homclite Corp | Chain saw |
US3938477A (en) * | 1974-02-20 | 1976-02-17 | Outboard Marine Corporation | Thrust bearing arrangement for a rotary piston internal combustion engine having a vertical crankshaft |
US4368703A (en) * | 1980-01-30 | 1983-01-18 | Yamaha, Hatsudoki, Kabushiki, Kaisha | Two stroke engine having exhaust timing control valve means |
-
1936
- 1936-12-29 US US118167A patent/US2133458A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2606541A (en) * | 1947-10-16 | 1952-08-12 | Lutz Otto | Internal-combustion engine |
US2630844A (en) * | 1950-06-29 | 1953-03-10 | Homclite Corp | Chain saw |
US3938477A (en) * | 1974-02-20 | 1976-02-17 | Outboard Marine Corporation | Thrust bearing arrangement for a rotary piston internal combustion engine having a vertical crankshaft |
US4368703A (en) * | 1980-01-30 | 1983-01-18 | Yamaha, Hatsudoki, Kabushiki, Kaisha | Two stroke engine having exhaust timing control valve means |
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