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 disadvantages of a standard system, specifically trouble with the exhaust throttle valve and potential overheating.
| Identifier | ExFiles\Box 66a\1\ scan0103 | |
| Date | 12th February 1926 guessed | |
| contd :- -18- DISADVANTAGE OF THE STANDARD SYSTEM. The only disadvantage that we can see possessed by the standard system is trouble with the exhaust throttle valve which certainly works under very trying conditions. From our investigations with the superheated system we cannot see that this will possess any advantage not already possessed by the standard system and the disadvantage it has in adding heat to the jacket water, although perhaps during average running of an insignificant amount, would be a vulnerable point at which criticism may be directed should any owner be trouble with over-heating, even though under abnormal conditions. It would therefore seem that any effort which could be made towards removing the only disadvantage we at present know possessed by the standard system - i.e. rattling and sticking of the exhaust throttle valve - would result in quite a satisfactory pre-heating system. We have fitted up the system on a car and shall be able to report upon its general performance later. Hs{Lord Ernest Hives - Chair}/A.{Mr Adams} C. Lovesey. | ||