his year is known as the Ace, and the principalfeature of this car is the Guy rotary disk valve engine. Thedisk is located in the combustion chamber. It bears againstthe cylinder head and is provided with four radial, rec-tangular slots forming ports. In the cylinder head thereare four… … III ml of Ace engine, showing Guy rotary disk valve revolution of the disk, and as they need to be opened onlyonce every two revolutions of the crankshaft, the disks re-volve at only one-eighth the crankshaft speed. This lowspeed of rotation seems to be the chief novelty. The inletand exhaust ports…
Automobiles · Aeronautics
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