Side surface of a piston guiding it along the inside of the cylinder.

An exemplary piston assembly may include a piston crown and skirt.

An exemplary piston assembly may include a piston crown and skirt.

An outlet port (122) of each piston chamber (110) and an associated temperature compensated valve (124) and a pressure relief valve (126) of each piston chamber control the clutch actuation.

The skirt oil hole (13) has arranged therein a nozzle (10).

The piston (1) may further comprise at least one piston ring groove (10, 12, 14) arranged in the piston skirt (6).

The piston has a piston body with an insert forming at least a portion of an upper combustion surface.

The predetermined portion of the outer surface preferably includes the piston skirt.

The piston skirt (24) assembly may include two separate portions that each have at least one skirt support (80) securing the respective skirt portion to the strut.

The piston may include a piston skirt including a pair of oppositely disposed pin bosses, the pin bosses each defining piston pin bores.

For example, a shorter and thinner piston skirt has been used.

Moreover, the piston assembly is preferably of the articulated type and includes a forged aluminum piston skirt connected to the piston member through a common wrist pin.

A piston (1) for a two-stroke internal combustion engine of the crosshead type has a piston crown (2) and a piston skirt (3).

For example, a shorter and thinner piston skirt was used.

High wear regions may include the annular grooves for receiving a piston ring, the piston skirt and the pin bore.