Seatless wet cylinder liner for internal combustion engine

摘要

An apparatus includes an internal combustion engine with an engine block and a cylinder liner housing a piston. The engine block includes at least one cylinder cavity and at least one replaceable cylinder liner positioned within the cylinder cavity. At least two press fit areas create an interference fit between the engine block and the replaceable cylinder liner. One press fit area is located proximate to the top surface of the engine block and the other press fit area is located in the engine block at the opposite end of the cylinder liner. A storage volume is formed between the press fit areas by the outer surface of the cylinder liner and the surface of the engine block defining the cylinder cavity.

主权项

1. An apparatus comprising: an internal combustion engine including an engine block and at least one cylinder cavity in the engine block, wherein the cylinder cavity includes an upper end portion and a lower end portion and an undercut region there between; at least one replaceable cylinder liner received in the cylinder cavity, wherein the cylinder liner includes a first press fit area located proximate a first end of the cylinder liner in press fit engagement with the upper end portion of the cylinder cavity and a second press fit area spaced from the first press fit area in press fit engagement with the lower end portion of the cylinder cavity; a storage volume formed by the cylinder liner and the undercut region between the first and second press fit areas, wherein the first press fit area and the second press fit area axially secure the cylinder liner in the cylinder cavity; and the cylinder cavity is free of features providing an axial abutment with the cylinder liner in the cylinder cavity.