| 摘要 |
<p>556,642. Cooling cylinders. BRISTOL AEROPLANE CO., Ltd., and KEEBLE, T. S. March 12, 1942, No. 3299. [Class 7 (ii)] [Also in Groups XXXV and XXIX] The flow of cooling air across the cylinders of an internal combustion engine is varied in accordance with changes in one pressure difference in the air stream across the element. A diaphragm 13 responsive to this pressure difference actuates a rod 15, for example, to unbalance a fluid pressure or other relay 23 which actuates a contact 20 to cause a reversible electric motor to adjust the exit flaps of the engine cowling, Specifications 455,248 and 455,249 are referred to, and so maintain a given temperature of the engine. Recording controls may comprise (1) a stack of capsules 31 subject to the induction pressure of the engine (2) a cam 33 adjusted with the throttle setting (3) a spring 35 the tension of which is adjusted with a change in supercharger speed (gear ratio) and (4) a thermostat and stack of capsules 37, in series, responsive to changes in atmospheric temperature and pressure. The apparatus may be pre-set in accordance with standard atmospheric conditions.</p> |
