Venting check valve for combustion nailer

Details Venting check valve for combustion nailer Venting check valve for combustion nailer

B - Operations, Transporting

25

C

B25C 1/12 (2006.01) F02B 71/00 (2006.01)

Patent

CA 2599443

A combustion nailer configured for reducing intake of contaminated air during operation, includes a combustion engine (14) having a cylinder (20) with a piston (22) reciprocating between a prefiring position and a fully extended position, and at least one air port (54, 102) in the cylinder below the fully extended position. The at least one air port is provided with a venting check valve (60) configured so that the discharge volume from the cylinder out the at least one air port is greater than the inflow.

La présente invention concerne une cloueuse configurée pour réduire l~admission d~air contaminé en fonctionnement, comprenant un moteur à combustion (14) ayant un cylindre (20) avec un piston (22) allant et venant entre une position de pré-allumge et une position entièrement étendue et au moins un orifice d'air (54, 102) prévu dans le cylindre en dessous de la position entièrement étendue. L~au moins un orifice d~air est pourvu d~un clapet anti-retour de ventilation (60) configuré de façon à ce que le volume de refoulement du cylindre sortant de l~au moins un orifice d~air soit supérieur au flux entrant.

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