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).
Design options for an engine front support, including diagrams.
Identifier | WestWitteringFiles\V\October1930-February1931\ Scan324 | |
Date | 10th February 1931 | |
E.{Mr Elliott - Chief Engineer} HS.{Lord Ernest Hives - Chair}) FROM R.{Sir Henry Royce} BY.{R.W. Bailey - Chief Engineer} ) (At Le CanadelHenry Royce's French residence.) C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} C. to HY.{Tom Haldenby - Plant Engineer} RHC.{R. H. Coverley - Production Engineer} P. 2. ENGINE FRONT SUPPORT. To suit existing cars, assuming we cannot get satisfaction unless we have central support at front end, the supporting tube or cross member must I can see pass under the transmission line as shewn on LeC. 2873., but might probably be 2" outside dia., 1/8" thick. The one shewn on this drawing looks unnecessarily big and heavy - (unimportant, and I may be wrong.) My scheme would need this detachable. If tube slightly short, easily taken down. Torque dampers or some simple casting from existing front arm facing could hold up engine while tube is away. A casting, aluminium, steel or malleable, could be permanently fitted in frame or as packing. Four bolts would pass through packing to flange of tube. I think the wheelcase could bear weight of engine and other stresses: it seems a good shape and well fixed. Wheelcases might be interchangeable: if so, special ones could be fitted. Arrange a short cantilever from wheelcase on each side of fan belt, thus - FAN PULLEY ABOUT 8 1/2" These cantilevers are about 3.5" long and can have about 5" base. Third bolt is to give lateral stiffness. Don't forget endless fan belt has to be got on and off without disturbing anything important: this has influenced my suggestions. One could test what load in each direction this would bear before it broke or damaged the case, but the case should be bolted on engine. Also the whole could go on bumper test to prove vertical and horizontal strength. R.{Sir Henry Royce} | ||