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).
Examination of the Packard car's petrol tank design which features a reserved compartment.
| Identifier | Morton\M2.1\ img050 | |
| Date | 17th August 1920 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ c. to Bx. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to BY.{R.W. Bailey - Chief Engineer} ORIGINAL R.F.C Hs{Lord Ernest Hives - Chair}2/LG6. 8.20. X.435. PACKARD CAR PETROL TANK. X.3888 X.3451 RECEIVED 17 AUG 1920 We have examined the method they have on the Packard Car for providing a reserved compartment in the tank for petrol. It is carried out as follows:- [Diagram of a petrol tank with handwritten labels] filler Two-way petrol tap. Reserve Compartment This scheme has the advantage of being simple, but has the disadvantage of introducing another petrol tap which must be petrol-tight and air-tight. Also if one is using the petrol in the reserved compartment and only a small quantity of petrol is added to the tank, this does not get into the reserved compartment and that to use that petrol up, the tap has to be turned on to the main tank. It has the disadvantage that if the tap is left in the reserve tank, the whole of the petrol is used up. Hs.{Lord Ernest Hives - Chair} | ||