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).
Petrol fume issues in Bentley cars and proposing a revised tank breathing system.
| Identifier | ExFiles\Box 88\5\ scan0074 | |
| Date | 18th September 1933 | |
| 1281 To E.{Mr Elliott - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey} c. to By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}2/KT.18.9.33. BENTLEY - PETROL TANK. We rather anticipate that we may have complaints of petrol fumes in the body, on Bentley cars. This is due to the filler, which also acts as a breather, being totally enclosed in the body. We have proved that, if the breather holes of the petrol tank are put into communication with the interior of the body, under certain conditions of road the petrol fumes are very bad in the interior of the car. A scheme whereby this is avoided has been used on a few special 20 HP. and 40/50 HP. cars. The petrol filler is totally sealed up when the cap is closed and breathing is looked after by fitting a small diameter pipe to the top of the petrol tank; the pipe is taken to any convenient position outside the body and higher than the top of the petrol filler. It is not intended that this pipe shall be of sufficient dimensions to release air when the tank is being filled with petrol. The present arrangement to do this job should therefore be retained and only the breathing holes deleted. We should like a scheme on these lines for the Bentley car which is shortly going to France for 10,000 miles test. Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey} | ||