INTAKE AIR TEMPERATURE AUTOMATIC ADJUSTING DEVICE AND AIR CLEANER WITH SUCH DEVICE FOR INTERNAL COMBUSTION ENGINES

摘要

An intake air temperature automatic adjusting device for internal combustion engines, in which a temperature feeler having a heat-sensitive expanding compound sealed therein is provided in a cold air intake pipe and a push rod adapted to be operated by said feeler and having a crank-shaped arm formed at one end thereof is engaged at said arm with a cam having formed therein a crank-shaped slot composed of a first slot section and a second slot section and further a directional control valve operating incident to movement of said cam for regulating the amounts of air supplied from said cold air intake pipe and a hot air intake pipe connected thereto is provided in said cold air intake pipe, whereby when said push rod is operated by said feeler, said directional control valve is shifted between said cold air intake pipe and hot air intake pipe, with said arm sliding in the first slot section of the crank-shaped slot of the cam and, when said push rod is further operated in excess of its preset stroke, the amount of movement of said push rod is absorbed by said cam, with said arm sliding in the second section of said crank-shaped slot.