Kreuzkopfmotor

Abstract

Cross-head engine e.g. two-stroke large diesel engine has through recess (12) of piston rod (2) which is formed as smooth through-bore below their upper end area and input pipe (13) with its lower end area is placed within through recess, which is meshed in central sleeve whose outer diameter is larger compared to outer diameter of input pipe, which corresponds to diameter of through-bore. An Independent claim is also included for the device.

Description

technical field [0001] The invention relates to a crosshead engine, especially a large two-stroke diesel engine, which has at least one piston connected to a crosshead journal through a piston rod, and the piston is connected to a crosshead journal through a A cooling fluid is supplied by a channel system in which the piston rod is provided with a through hole, and a centering sleeve protruding from a radial hole concentric with the crosshead journal is fitted into the lower end of the through hole. area, while the area of ​​the through-hole located above this is divided into flow channels on the side of a crosshead journal via a cannula whose lower end is embedded and has a smaller outer diameter compared to the diameter of the through-hole. There is an inner flow channel and an outer flow channel that are connected to the coolant. Background technique [0002] A known arrangement of such engines is in the form of notches from Image 6 can be clearly seen in . The through...

AI Technical Summary

Problems solved by technology

This makes it more difficult to manufacture

Another disadvantage is that the bore leading away from the lower end of the outer flow channel extends relatively far into the lower region of the piston rod through the flange height of the piston rod

In operation, as shown in experiments, this leads to poor stress distribution and consequently known arrangements with a shorter service life or with larger dimensions in the outermost

Images