Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 192
mpressionis changed with the cut-off is also very noticeable. With thelatest cut-off the point of compression occurs almost at the endof the exhaust stroke, but, with no load, when cut-off is earliest,the point of compression occurs before mid-stroke. The valves used on automatic high speed engines… … Fig. no. required to move the valve back and forth be reduced to a mini-mum because the valve is moved by the governor and, if muchpower is required to move it, the sensitiveness of the governorwill be reduced. For this reason the valves on automatic highspeed engines are balanced and friction is…
Steam-engines
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