Rotating distributor device seated within the cylinder head for endothermic two- or four-stroke-cycle or diesel engines

Claim 1

A rotary disc valve means for internal combustion engines having a cylinder for a reciprocating piston including a cylinder head provided with an end wall, disc means having an axially extending pin for rotatably supporting said disc means adjacent said end wall for rotation concentric with the longitudinal axis of the cylinder, comprising in combination annular recesses provided in the radially extending surface of said disc means adjacent said end wall of the cylinder head as well as in the side cylindrical wall of said disc means, annular seals arranged in said recesses, means to resiliently urge said seals into sliding engagement with said end wall and sidewall of the cylinder, a gap between said end wall of the cylinder head and the upper surface of the disc means and channel means for introducing lubricant fluid in said gap, said channel means being provided in the disc pin for communication with a source of fluid lubricant pressure as well as with said recesses and with the gap between the disc and the cylinder head, said channel means also including an exhaust channel provided in said cylinder head, said disc means including a channel for communicating with said exhaust channel and means for axially positioning the disc means with respect to said cylinder head for maintaining constant the dimension of the gap, whereby the gap remains filled with lubricating fluid.