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).
Describing an electrically heated petrol vaporizer from a Franklin car for assisting engine starts in cold climates.
| Identifier | ExFiles\Box 77\1\ scan0068 | |
| Date | 10th May 1918 | |
| X.3693 St7/B51018. May 10, 1918. To R.{Sir Henry Royce} from St.{Capt. P. R. Strong} Copy to C. J.{Mr Johnson W.M.} Copy to Wor.{Arthur Wormald - General Works Manager} The Franklin air cooled car is supplied with a fitting as shown on the attached print (Prints attached to R & Wor{Arthur Wormald - General Works Manager}'s copy). I am forwarding this as I consider that either it or modifications of it might be useful for starting up on Aero Engine work and also perhaps for future car work to be used in cold climates. The instrument as shown on the print consists of an aluminum body 'B' into which is inserted a cylinder of porcelain 'C' which houses a coil of wire about 18 gauge. This wire is connected with terminals 'T' and 'T'1 at either end. The idea is to obtain a vapor of petrol so that the Engine will start up readily, no matter what the surrounding atmospheric temparature. A petrol pipe from the float chamber is connected to 'F' and another pipe from the induction pipe is connected to 'I' and on fitting the lever 'L' which fulcrums about the pin 'P' electrical contact is made with the terminal 'T' allowing a current to flow through the coil of wire which heats it up and vaporizes the petrol surrounding it, the vapor being drawn by the suction of the Engine through the conical valve shown on the print, which is opened immediately on lifting the lever 'L'. | ||