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, with a diagram illustrating its reserve compartment system.
| Identifier | ExFiles\Box 180\M2\M2.1\ img050 | |
| Date | 1st August 1920 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to H.{Arthur M. Hanbury - Head Complaints} c. to Dr. c. to BY.{R.W. Bailey - Chief Engineer} ORIGINAL R.F.C. Hs{Lord Ernest Hives - Chair}2/LC6. 8.20. X.435 PACKARD CAR PETROL TANK. X.3888 X.3451 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:- 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} | ||