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 schemes for the Phantom II's exhaust-heated throttle.
| Identifier | ExFiles\Box 14\6\ Scan122 | |
| Date | 29th November 1929 | |
| X7230 Hs.{Lord Ernest Hives - Chair} } FROM R.{Sir Henry Royce} EV.{Ivan Evernden - coachwork} } c. Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} RL/M29.11.29. PHANTOM II. EXHAUST HEATED THROTTLE. X7910 X7230 We agree that this should be done universally as soon as possible on all cars. We have sent a scheme for two stage expansion into bend. We now send one based on fishtail entrance to bend jacket. It is possible that if the jacket had small capacity there would be less noise. We like the exit pipe and separate small silencer better than joining the main silencer. We have sent a design for the malleable cast iron bend for the small feed pipe. An alternative is to cast the bend in iron and insert a small steel tube, and secure with welding through holes. R.{Sir Henry Royce} | ||