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).
Letter from Solex Ltd. concerning a surging issue with a trial 40 m/m governor carburettor.
| Identifier | ExFiles\Box 121\2\ scan0193 | |
| Date | 10th August 1935 | |
| Hs{Lord Ernest Hives - Chair}/Smith I have not replied as this is your matter X1032 SOLEX LTD. Director GORDON RICHARDS. SOLEX WORKS - 223-231 MARYLEBONE ROAD LONDON N.W.1. Telegrams 'SOLEXCARB NORWEST LONDON' Telephones PADDINGTON 5011 (6 Lines) Telegrams 'SOLEXCARB EDGWARE LONDON' Telephones PADDINGTON 8621 8624 8622 8625 8623 8626 YOUR REF. OUR REF. LP{Mr Lappin}/MM 10th August, 1935. Messrs. Rolls-Royce Ltd., DERBY. Dear Sirs, For the attention of Mr. Lidsey. We understand from our Mr. Mills that the 40 m/m governor carburettor we sent you on trial was not found altogether satisfactory on account of a surging period when the governor began to operate. We do not think too much importance should be attached to this defect, provided it does not occur over too wide a range of loads and too extensive a range of speeds. When the surging effect is thus limited, it is impossible to detect it on the road, since it would mean that for a fair distance the gradient is just meeting the load for which the governor begins to operate. Furthermore, even if this condition were fulfilled, the inertia of the vehicle will only give rise to very slow surging, thus making it indistinguishable from the normal operation of the governor under slight variation of the gradient. Usually, by careful adjustment of the governor, we manage either to eliminate completely this surging or to limit it narrowly towards the point where the governor begins to close. Once the governor is thus set, it has always been found satisfactory on the road. CUSTOMER'S CARS ARE ONLY DRIVEN BY OUR STAFF AT OWNERS' RISK. | ||