Air intake device for internal combustion engines

Claim 1

An air intake temperature control device for internal combustion engines which comprises: a. a housing having two apertures therein disposed opposite and facing each other and adapted to serve as air inlets for respective heated and unheated air flows, and an aperture adapted to serve as an air outlet for the mixed air flows, b. a cantilever-like bi-metallic strip mounted at one end thereof in the housing and disposed in the path of the mixed air flows, c. a valve-like vane rigidly mounted on the other end of the bi-metallic strip and disposed between the two opposed and facing air inlet apertures such as to control the relative flows of heated and unheated air according to the result temperature of the mixed air flows, said vane movable towards and away from said air inlets, said vane being sandwiched between discs of elastomeric material, the discs being each at least as large as its respective aperture, d. the heated air inlet aperture presenting a greater resistance to air flow than the unheated air inlet aperture, whereby during acceleration a pressure difference is generated across said vane, and in which the bi-metallic strip is resilient, whereby the said pressure difference deflects the strip and causes the valve to increase the ratio of unheated air during acceleration.