Design suggestions for a cylinder head regarding the orientation of inlets and exhausts.
| Identifier | ExFiles\Box 3\4\ 04-page043 | |
| Date | 21th June 1932 | |
| S. FROM R. {Sir Henry Royce} C. to SG. {Arthur F. Sidgreaves - MD} MOR. re CYLINDER HEAD. C. to DA. {Bernard Day - Chassis Design} HY. {Tom Haldenby - Plant Engineer} MS. J.S. & BANSOP AT QUARMBY(CBS). I think your latest suggestion is the best - i.e. all gends looking one way, both in the exhaust & inlet. For instance, if the inlets all look forward, the exhausts all look outward, and vice versa. We think it would be better to swallow(Experimental 3rd LINE MODEL 12/15hp 2-3 seater) the want of looking (that symmetry) for the sake of the pipe, and one believes the best cooling of the whole head. I also agree that the open type head would be better for this small engine at least. I am inclined to think that J. {Mr Johnson W.M.} S. should be treated similarly. I would have spoken to you myself over the telephone but have gone to 'Canada' to pig. Forward the sea of work which is pressing, (both the Central charge Bensport(Codename for 3 1/2-litre Bentley), and the L.H. J.S.). These will want somewhat similar treatment as regards the Borer mechanism. J. {Mr Johnson W.M.} S. is standing still for Bensport(Codename for 3 1/2-litre Bentley), but the latter will be finished I think this week. 3. | ||
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).