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).
Page describing a choke disk and a warming-up system, with a sectioned view diagram of a valve arrangement.
| Identifier | ExFiles\Box 122\4\ scan0016 | |
| Date | 9th November 1934 guessed | |
| -3- This choke disk T carries a spring-loaded flapper valve U which covers a calibrated hole in the choke disk and which releases when the engine starts with a fully closed choke. The advantages claimed for this starting and warming-up system are easy starting (the engine will continue to run a short time even with a fully closed choke), ability to keep the engine running without fussy handling of the dash control immediately after a start, and smooth handling of the dash control during the warming-up period. The dash-control throttle-opening device can be calibrated to give slightly higher idling speeds during the warming up period when higher speeds are desirable on account of cold engines and the proper throttle opening for the actual start with choke fully closed. SECTIONED VIEW SHOWING ARRGT: OF MAIN NOZZLE WITH METERING PIN AND OF WARMING-UP VALVE. PO | ||