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).
Bench testing of a new 'Zenith' edge filtration petrol filter and suggesting further road tests.
| Identifier | ExFiles\Box 44\1\ Scan074 | |
| Date | 1st January 1927 | |
| To FH. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to G.{Mr Griffiths - Chief Accountant / Mr Gnapp} c. to CWB. c. to Woy. V3700 Hs{Lord Ernest Hives - Chair}/RmS/LGS.1.27. PETROL FILTER. V3700 In response to the repeated request from Sales for an improved petrol filter. We have tested out the new 'Zenith' edge filtration fitment. This device must be installed somewhere between the autovac and the carburetter. Our bench tests have shewn that this filter is definitely finer than our present standard gauze filter. As a consequence it gets choked up more rapidly. The makers claim that the road vibration obviates this difficulty as the impurities fall to the bottom of the filter chamber. The only method of substantiating the claim is to carry out extensive road tests. We suggest that if it was thought desirable we could fit a number of these filters in an inconspicuous position on trials cars. We are fitting them to Experimental cars but have never had the same difficulty with choked jets as has been experienced in London. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||