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).
The Melbourne Engineering Co's two-stage roots blower supercharger.
| Identifier | ExFiles\Box 140\1\ scan0229 | |
| Date | 5th October 1938 | |
| R.R. 306. ST.{Capt. P. R. Strong} 50966. 6/11/37. C.E. SWDL{Len H. Swindell} Poles 1141 EXPERIMENTAL DEPARTMENT REPORT REFERENCE:— Lr{Mr Ellor}/Aln.10/GC. 5.10.38. Subject of Report:— Melbourne Engineering Co's Supercharger. General Conclusion:— A special form of roots blower having two stages. Results in comparatively efficient working at fairly high compression ratios. Doubtful however whether it would be good enough for aero applications. Might be suitable for car work. Copies of Report Circulated to:— E.{Mr Elliott - Chief Engineer} Bn.{W.O. Bentley / Mr Barrington} Lr.{Mr Ellor} SGH.{Sir Stanley Hooker} By.{R.W. Bailey - Chief Engineer} Rm.{William Robotham - Chief Engineer} Report to be noted for further action by:— Test carried out on:— By:— Test No. Date:— | ||