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).
The functionality of a self-draining float in an Autovac tank and a recommendation for modification.
| Identifier | ExFiles\Box 40\4\ Scan345 | |
| Date | 1st July 1930 | |
| HS{Lord Ernest Hives - Chair}/AJL1/ADA.7.30 contd. -2- via the leak in the bottom of the float. After the Autovac tank and the petrol had cooled down to atmospheric temperature the suction was again applied to the Autovac, and the self draining float functioned sufficiently quickly to drain it just before the float chamber was filled up with petrol and allowed the float to rise and cut off the suction. It will be remembered that the present type fills the float chamber before the float rises and petrol is drawn into the source of suction (suction pump and crankcase on P.II; induction pipe on 20/25 HP. cars) A rather more elaborate float which would do the same job was suggested by Ey. but has not yet been made. In view of the success obtained by the Autovac Cos. comparatively small modification we should recommend that we adopt it as early as possible. HS{Lord Ernest Hives - Chair}/AJL. | ||