Elastomeric sealing ring for cylinder liners

Claim 1

In an internal combustion engine having a cylinder block, a cylinder head mounted on said block, a cylindrical bore formed in said block, a cylindrical one-piece liner mounted in said bore and having an upper, radial flange seating on a top surface of said block and an axially spaced lower radial flange defining an annular groove therebetween, said lower flange having a free end closely fitted within said bore, interconnecting passage means defined in said block and said head around said liner for continuously circulating a coolant therethrough during engine operation, said passage means further including a venturi throat means solely defined between siad lower radial flange and said liner, closely adjacent to and below said sealing means, to increase the velocity of coolant flow therethrough and further including a pair of gaskets and a spacer plate sandwiched between said gaskets, said gaskets and spacer plate mounted between said block and head and having aligned openings therein which serve as a continuation of said passage means between said block and head, an elastomeric sealing ring disposed in said annular groove and compressed between siad block and said liner, adjacent to said head preventing the passage of coolant between said seating and said free end and said bore. closely adjacent to the sealing means to increase the velocity of coolant flow therethrough. BRIEF DESCRIPTION OF THE DRAWING