Патент USA US2133458код для вставки
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 sIDEBoARD‘MoToRs Original `F‘iled'Nov. 2, 1935 41 ' 3 Sheets-Sheet 2 15 I I v I I | | I I Iu/ I I Hl L I I I 15a I Inventor M ._ 25A i :_ Oct. 18, 1938. A. LESAGE 2,133,458 COOLING SYSTEM Fon sIDEßoARn MoToRs, Original Filed Nov. 2, 1935>’4 3 Sheets-Sheet 3‘ Inventor y@ aww 7 2,133,458 Patented Oct. 18, 1938 " UNITED STATES vPATENTl OFFICE ' 2,133,458 COOLING SYSTEM FOR SIDEBOARD MOTORS Alfred Lesage, Schweinfurt, Germany l Original application November 2, 1933, Serial No.A 696,303. Divided and this `application Decem ber 29, 1936, Serial N_o. 118,167. In Germany November 5, 1932 4 Claims. (ci. 11s-_17) This application is a division of my copending to the crank shaft of the engine and parallel to application Serial No. 696,303, filed November 2, i the axis of the engine cylinder i, the drive being 1933, now Patent No. 2,070,364. The invention relates to a cooling system for outboard'engines, and" more particularly side board engines, and the special arrangement of the feeding and discharge conduits both extend ing with their free ends into the water. a worm or helical gear I5 the reduction ratio of which is preferably one half. 'I'he water cooling system of the motor cylin- - through by the combined effect of the admission der is composed of a `trunk I8 pivotally articu lated to the bottom part of the unit through a swing valve or hollow pivot I9, channels 26 lead ing to the water jacket 21 of themotor cylinder 10 l, and other channels ‘28 interconnecting the pressure due to the travel of the vessel and the suction generated in the discharge branch due peller shaft 8, the discharge being made through The object of the invention is to so devise the 10 cooling circuit that the water is driven there to centrifugal force. 15 transmitted thereto through the intermediary of ' ' This object is4 attained by the provision of a feeding pipe extending substantially vertically from the motor down into-the water and dis charge channels formed in the hollow propeller » said jacket to the inner end of the hollow pro said shaft and holes I6 of the vanes of the propeller I1. ` 15 The operation of the water cooling conduit is as follows. ~ When the nozzle I8 is swung down as shown in _ shaft and the propeller vanes. This arrange 20 ment will constitute a circuit of the least length Fig. 1 in full lines its water admission opening I8a is placed in the direction of travel of the 20 boat so that the pressure generated therein by means being required for impelling the water through the cooling jacket of the motor. Another object of the invention is to reduce 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 25 and high cooling effect, no separate driving as weight and dimension of the unit and to render the motor compact by articulating a projecting secure the nozzle I8 .in its right working position >feeding pipe of the cooling system upon the , against the reaction of the water. T_he .cooling motor thereby facilitating the evacuation and the water having passed the jacket 21 is discharged through the channel 28', the bore of theV propeller 30 transport of the motor. _ In the annexed drawings, which form a part of shaft 8 and the discharge holes in the vanes of 30 this specification, by way of example a sideboard the propeller I1, a suction eiïect due to centrifu motor in connection with the cooling appliance gal force assisting the circulation in the conduit. Before dismounting the unit from the boat, the according to the invention is represented. Fig. l is a longitudinal sectional elevation of nozzle can be swung upwards lengthwise the unit 35 35 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 40 unit. ` ' l 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 evacua tion of the entire system from water which flows out through the propeller shaft-and propeller. 40 The unit thus made lighter and compacter can Like >numerals denote like parts throughout all now be handled more easily. ' figures of the drawings. I claim: ~ ` The sideboard motor comprises the engine cyl 1. 1n> combination with an outboard motor unit, inder 4, _the crank case 5, a ñywheel-magneto de . including an internal combustion engine, a. cool 45 45 vice 6, a starting appliance 1 attached to the flywheel, the propeller shaft 8, a fuel tank 8 ing jacket for said engine,"a- hollow propeller shaft placed above the engine cylinder 4, a muiiler 25 communicating with said jacket, and a propeller arranged -by the side of, and‘directly connected having cooling water discharge apertures com to, the motor, and a carbureter III, all these items municating with the interior of said shaft, a 50 being combined to form a.- unit. From the water admission pipe communicating with said jacket whereby cooling water will circulate suc ,crank case 5 laterally projects a sleeve II de signed to interconnect the said unit with a tubu- , cessively through said pipe, said jacket and said i `lar carrier I2 projecting from the side board of a shaft, and out through said apertures, said pipe being pivotally connected to said- unit so that boat. when swung vertically downward said circulation 55 55 The propeller shaft 8 is arranged transversely 2 2,133,458 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 in cluding atubular nozzle with its mouth facing in the direction of travel and a pivotal connection 10 permitting adjusting said nozzle to a lower oper of the motorl boat, in water receiving position, and a hollow adjustable pivot device located at _ the upper end of said pipe, providing communi cation between said pipe and said cooling jacket and permitting adjustment of thepipe from oper ative vertical to inoperative horizontal position. _ 4. The combination with an outboard motor unit, of an internal combustion engine, a cool ing jacket of said engine, and a circuit ínter connected with said jacket, including an ad ative circulation position or to an upper inoper mission branch and a discharge branch, said ad ative and totally discharging position, and said mission branch including a tubular nozzle with discharge branch including a hollow propeller shaft and propeller vanes, the latter having dis 15 charge apertures radially spaced from the pro peller axis. its mouth facing in the direction of travel of the motor, in water receiving position, and a pivotal 3. In combination with an outboard motor unit, including an internal combustion engine, a cool ing jacket for said engine, a hollow propeller 20 shaft _communicating with said jacket, a propeller nozzle to a lower operative circulation position or to an upper inoperative and totally discharg-v ,having cooling water discharge apertures com municating with the interior of said shaft, a Water admission pipe having its lower'water ad g mission aperture facing in the direction of travel 10 connection in the shape of an adjustable cock like articulation permitting " adjustment of said ing position, and said discharge branch includ ing a hollow propeller shaft and propeller varies, 20 the latter having discharge apertures radially spaced from the propeller axis. ALFRED LESAGE.