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Aviation History
1909
1909 - 0707.PDF
NOVEMBER 6, 1909. FLIGHT ENGINES AT PARIS f SHOW— continued from page 692). ; the same secondary shaft, which is gear-driven from the crank- shaft, and lies alongside the crank-chamber. Paris Flight Show.—The 25-h.p. 4-cyl.air-cooled Renault engine, showing the arrangement of the carburettor, magnetoand oil-pump. PARIS FLIGHT SHOW.—Dimensioned outline drawing of the 25-h.p.air-cooled 4-cylinder Renault. Renault 25-h.p.—Air-cooled, 4-cyl. V type engine. This is the smallest model for flight made by Messrs. Renault, and is a very neat design. The cylinders are cast separately, and have clrcum" ferential radiating gills, as also have the independent cylmder-heads, each of which is held in place by an external yoke secured to the crank-chamber by four long bolts ; these same bolts hold down the cylinders. Both valves are mechanically operated, and all are controlled from the same cam-shaft, which is situated immediately above the crank-shaft ; the exhaust-valves are placed over the induction-valves. The magneto is mounted on the top of the crank- chamber under an arch formed by the induction-pipes. The crank- chamber is a one-piece aluminium casting, and has detachable aluminium end-plates for the support of the crank-shaft. Lubrica- tion is effected by a pump situated outside the crank-chamber. Dimensions.—90 mm. by 120 mm. ; weight 115 kilogs. ; 25-h.p. at 1,200 r.p.m. ; price 6,000 francs.Renault 45-h.p.—Water- cooled, 4-cyl. engine of the vertical type, having separate steel castings for the cylinders. Corrugated cop- per water-jackets are fastened in place by screws, but a part of the water space in the vicinity of the cylinder-head is formed in the cast- ing. All valves are mechanically operated, and situated vertically in the cylinder- heads. The single cam-shaft lies in- side the crank- chamber in the usual way. Mag- neto ignition and a water-pump are provided, these two members being driven off opposite ends of BORE. MU/«. STROKE 1607, i SCALE PARIS FLIGHT SHOW.—Another viewof, the 4-cyl, air-cooled 25-h.p. Renault, showing the fan in place. PARIS FLIGHT SHOW.—-Dimensioned outline drawingo£ the 4»cylinder 45-h.p. Renault water-cooled engine. Bore and stroke 110 x 160. 709
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