positions of valve stroke to engine stroke indi-cated at the side. It will be observed that when the sleevevalve is subjected to the maximum pressure—that is,during the compression and power strokes—it is travel-ing in the same direction as the piston. During opera-tion the valve never comes to… … Fig. 4—Wallace valve arrangement in an aircooled cylinder to reduce oil shear between the valve and the cylinder,and also between the piston and the valve, the latter,it may be noted, being devoid of oil grooves or scrapers.The motion, it is claimed, also helps in the transferenceof the heat lost…
Automobiles · Aeronautics
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
