METHOD AND APPARATUS FOR OPERATING AN ENGINE-DRIVEN CHAIN SAW IN AN ENVIRONMENT WHERE ICE MAY FORM HE CARBURETOR OF THE ENGINE

摘要

An improved chain saw and method of operating a chain saw in a cold, humid environment where ice may form in the carburetor of the chain saw engine is disclosed. An ice-inhibiting substance is mixed with the fuel and lubricating fluid and introduced into an interior portion of the carburetor in conjunction with the combustible mixture of fuel, lubricating fluid, and air during operation of the two-cycle internal combustion chain saw engine in order to inhibit the formation of ice therein. The ice inhibiting means may be premixed with the lubricating fluid.