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).
Blueprints for a crankchamber, covering starter motor mounting stiffness and potential improvements.
| Identifier | WestWitteringFiles\R\January1928-March1928\ 74 | |
| Date | 22th February 1928 | |
| ORIGINAL FROM E.{Mr Elliott - Chief Engineer} C. to HS.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} E3/M22.2.28. X8000 X8100 X8010 EAC.10. CRANKCHAMBER. We send herewith blueprints of LeC. 2503. and 2505. dealing with the rear end of the crankchamber, which have been sent to Derby. LeC. 2503. which was taken to Derby on the 7th inst. shews the mounting for the starter motor. I have been going to write about this drawing before, as although it is schemed out on the lines expected I do not feel that it is quite stiff enough to carry the mass of the motor securely when the engine is vibrating torsionally about some point well above the crankshaft. It is proposed at the first opportunity to make some rough scheme of ideas for improving the stiffness of the mounting. We would draw attention to the set bolts and inserts used for clamping the two halves of the crankcase together at the rear. These are used in place of the long bolts on the present Phantom to enable the starter motor to be got in to the position shewn. LeC. 2505. shews the oil filler and the bolting of the crankchamber local to the rear feet. E.{Mr Elliott - Chief Engineer} | ||