From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Patent specification for improvements to internal combustion engines and superchargers therefor.
| Identifier | ExFiles\Box 140\1\ scan0202 | |
| Date | 22th July 1936 | |
| SUPERCHARGER FILE PATENT SPECIFICATION Tech C Convention Date (United States): Aug. 7, 1935. Application Date (in United Kingdom): July 22, 1936. No. 10505/37. (Divided out of No. 478,957). Complete Specification Accepted: Jan. 24, 1938. 478,982 1171. COMPLETE SPECIFICATION Improvements in or relating to Internal Combustion Engines and Superchargers therefor We, GRAHAM-PAIGE MOTORS CORPORATION, a corporation organised under the Laws of the State of Michigan, United States of America, of 8505, West Warren Avenue, Detroit, Michigan, United States of America, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement:— This invention relates to a supercharger employed in connection with fuel-mixture induction systems of internal combustion engines. Objects of the invention include the provision of an internal combustion engine having an intake manifold located on one side thereof and a supercharger structure adjustably mounted and located on the other side thereof, the supercharger and the manifold being connected by a duct extending over the cylinder head of the engine; the provision of a structure as above described in which the connections of the duct extending across the cylinder head to the supercharger and to the intake manifold are such as to permit relatively wide ranges in manufacturing tolerances in the various connected parts and of such character as to eliminate substantially the transmission of vibratory forces through the connections; the provision of a supercharger construction for an internal combustion engine having an intake manifold in which the supercharger impeller housing is located above the manifold and provided with a down-draft carburetor above it to supply combustible mixture thereto. According to the invention, an internal combustion engine is provided having an intake manifold located on one side thereof and a supercharger structure on the other side thereof, the supercharger and the manifold being connected by a duct which extends over the cylinder head, characterised in that the supercharger structure is adjustably mounted. Moreover, if a detachable cylinder head is provided on the internal combustion engine, the duct may be removably mounted so that the cylinder head may be removed from the engine without removing the supercharger or intake manifold. An illustrative embodiment of this invention is shown in the accompanying drawings, in which: Fig. 1 is a view in side elevation of a conventional inline type of internal combustion engine equipped with our improved supercharger, the lower portion of the engine being broken away. Fig. 2 is a diagrammatic view in front elevation of the same illustrating the manner in which the necessary shaft is driven in conjunction with the cam shaft from the crank shaft of the engine. Fig. 3 is an enlarged fragmentary top plan view of the supercharger mounted on the engine but with the carburetor removed from the top of the supercharger. Fig. 4 is a transverse vertical sectional view taken on the line 4—4 of Fig. 3, showing the engine, intake manifold and supercharger. Fig. 5 is an enlarged sectional view taken on the line 7—7 of Fig. 4, showing the duct which connects the supercharger with the intake manifold. Fig. 6 is a sectional view taken on the line 8—8 of Fig. 4, showing the construction of the duct which provides communication between the supercharger and the intake manifold at a place closely adjacent the supercharger. Fig. 7 is a view partly in section and partly in plan taken on the line 9—9 of Fig. 4, showing the impeller and lower part of the impeller housing, the top or cover of the impeller housing being removed. Fig. 8 is an enlarged sectional view taken on the line 11—11 of Fig. 4, showing the angle bracket against which the supercharger is mounted and the adjusting means for accurately positioning the supercharger with respect to the engine. In the construction shown in the drawings, a conventional type of cylinder inline internal combustion engine 20 is shown provided with the improved supercharger generally designated at 21 mounted on the crank case thereof and driven by an accessory shaft 22 which also drives [Price 1/-] | ||