Method for preventing accumulation of cylinder oil at scavenging ports of low-speed marine engine

A method for preventing the accumulation of cylinder oil at scavenging ports of a low-speed marine engine, wherein an oil passage is arranged on a cylinder wall inside a cylinder;

• the oil passage comprises a plurality of oil storage grooves processed in a circumferential direction of the cylinder wall;
• the oil passage is formed by obliquely extending from an inner side of the cylinder wall towards the outside of the cylinder in a radial direction of the cylinder;
• the scavenging ports are uniformly distributed in a circumferential direction of the cylinder;
• each of the oil storage grooves is correspondingly processed at an upper portion of a scavenging port upper edge of the scavenging port, and each of the oil storage grooves has a shape matching a curved surface of the scavenging port upper edge;
• and
• the adjacent oil storage grooves are in tangential communication with each other at the bottom,
• or oil discharge grooves are provided between the scavenging port side edges of the adjacent scavenging ports, and the top of the oil discharge groove is in communication with the bottoms of the two adjacent oil storage grooves.