| 摘要 |
A cooling system for combustion-powered fastener-driving tools (10) compr ises the use of cooling fin structures (36, 38) upon the external wall membe rs of the combustion chamber (14) and cylinder (16). Fluid flow paths are co nstructed between internal wall portions of a surrounding tool housing (26) and the cooling fin structures mounted upon the external wall members of the combustion chamber and cylinder. In this manner, ambient cooling air is pas sed over and through the cooling fin structures whereby the combustion chamb er and cylinder components of the fastener-driving tool are efficiently cool ed such that the temperature level of the fastener-driving tool is maintaine d at a desirable temperature level despite the substantial amount of heat no rmally generated during each combustion cycle.
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