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).
Letter discussing the Swan Inlet Manifold, suggesting experiments based on its success in Buick cars.
| Identifier | ExFiles\Box 41\4\ Scan057 | |
| Date | 26th February 1924 | |
| Oy2-E-22624 February 26, 1924. Mr. Claude Johnson, Rolls-Royce, Ltd., London, England. (Copy for attention of Mr. Royce " " " " Mr. E.{Mr Elliott - Chief Engineer} Platford " " " " Mr. E.{Mr Elliott - Chief Engineer} Hives) Dear Sir: Re: Swan Inlet Manifold We would like to bring to Mr. Royce's attention the attached extract from S.A.E. Journal for February entitled "Fundamental Improvements in Manifold Design". This describes the theory and practical results from the use of the Swan Manifold. This manifold is standard on the 1924 Buick, while rectangular manifolds of somewhat similar design have been used on Packard 6 and 8 cylinder cars for several years. Several of our members who have 1924 Buicks speak very highly of their performance both in quick starting and pulling at low speeds, as compared with earlier models. We suggest that experiments with this type of manifold with fuels approximating the typical American distillation curve might give very interesting results. We wish to point out also as a matter of interest that there is a distinct reaction against the excessive use of exhaust heat, and a realization at last that the condition of "dry gas" about which so much has been written in the last few years, is not actually realized in any manifold. Two copies of the paper are attached for Mr. Royce and for the Derby Progress Committee. MO/E Oy. M.{Mr Moon / Mr Moore} Olley | ||