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).
Lesson from the Mallory Ignition Course on ignition for oil-burning and low-grade fuel engines.
| Identifier | ExFiles\Box 163\7\ img293 | |
| Date | 24th April 1936 | |
| MALLORY IGNITION COURSE By M.{Mr Moon / Mr Moore} Mallory LESSON NUMBER 27 SUBJECT IGNITION FOR OIL-BURNING ENGINES, ENGINES USING LOW-GRADE FUELS AND ENGINES OPERATING ON COLD CARBURETION From the time internal-combustion engines were put into use, it has been the desire to decrease the operating cost. Engineers have worked from several angles toward this end. They have improved engines to operate more efficiently, thereby obtaining more horsepower with less fuel. Some have attempted to reduce the fuel cost by the use of a low-grade fuel. However, the latter have not made much headway due to the fact that low-grade fuel is more difficult to ignite, and in its use, many additional problems arise, such as fouling of spark plugs, hard starting, incomplete combustion and the lack of flexibility. These difficulties, arising in connection with the development of engines burning low-grade fuel, have always been more or less of a stumbling block. Engineers have improved carburetion to make the low-grade fuels more easily ignited and have lately obtained better combustion by the use of injectors and fuel pumps for introducing the fuel to the cylinders instead of a carburetor. Others have used high-compression engines of the Diesel type to compress the air to a high temperature in order to make the fuel ignite easier and make the combustion more complete. Although these methods have made the fuel ignite DIAGRAM LABELS: 1, 2, 3, 4, 5, 6, 7, 8, 9 50° 20' 15° CONDENSER DISTRIBUTOR TO SPARK PLUGS TO BATTERY FIG-1 COPYRIGHTED BY MALLORY ELECTRIC CORPORATION, DETROIT, MICH. PRINTED IN U. S. A.{Mr Adams} | ||