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).
Comparing a standard induction system with an experimental small diameter aluminium induction pipe and water heated hot spot.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan287 | |
| Date | 8th September 1925 | |
| R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. ORIGINAL. EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}/ACL/2/LG 8.9.25. C 48070 48230 To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/ACL. c. to CJ. BJ. c. to RG.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} PHANTOM SMALL DIA. ALUMINIUM INDUCTION PIPE AND WATER HEATED HOT SPOT. We have compared the performance for power output and distribution at full load of the standard induction system and exhaust heated hot spot with the experimental aluminium pipe of 1.7" internal diameter and water heated hot spot, on the test bench. With regard to power, there is very little difference between these two systems, the 1.7 dia. pipe gives an average of nearly 2% increase of power between speeds of 1250 and 2000 r.p.m. but the power above 2500 r.p.m. is approx. 1.2% lower than standard. The distribution full throttle - 650 to 1000 r.p.m. - with cold 'hot spot' is not quite so good as that given by the standard under the same conditions but when their respective hot spots are in operation the difference cannot be detected. Hs{Lord Ernest Hives - Chair}/ACL. | ||