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).
Recommendations for improving generator regulation systems and replacing manual charging switches.
| Identifier | ExFiles\Box 59\1\ Scan073 | |
| Date | 8th October 1926 guessed | |
| -2- Contd. therefore tends to be cumulative. We think it is largely for this reason that we have found it more difficult to get satisfactory regulation with a plain shunt wound generator since it has been positively driven. Sticking of the regulator contacts with a third-brush machine only leaves the system in its present standard condition and the condition of practically all passenger cars, which use a third brush machine without any means of control). We therefore should recommend:- (a) That a voltage regulator should be used to replace the manual charging switch in connection with the present third-brush machine. (b) That possibly a simpler device might be produced which instead of attempting to regulate the output should act as an overload cutout, to perform the action of the charging switch automatically when the battery voltage reached a predetermined figure, and cut the generator in again after the battery voltage has fallen a reasonable amount. Yours very truly, MO/E.{Mr Elliott - Chief Engineer} | ||