Diesel engine piston ring shape can be divided according to:

Rectangular ring, cone ring, symmetrical barrel face ring, asymmetrical barrel face ring, inlaid copper rings, embedded plating ring, ladder ring, ladder ring, twist ring, nose ring, spiral spring - oil ring, ordinary oil ring, anisotropic chamfer oil ring, oil ring chamfer same direction;

Diesel engine piston ring material can be divided in accordance with:

Cast iron (gray cast iron) ring, alloy cast iron ring, iron ring, compacted graphite iron ring, malleable, semi-malleable ring, steel ring, metal ceramic ring.

Diesel engine piston rings are handled include:

Chrome plated, phosphate processing, oxidation treatment, spray molybdenum processing, galvanized, copper plating, nickel plating, spray copper processing, tin-plated, ceramic plated handle, chrome ceramic composite plating (CKS), plasma spraying, etc. .

Diesel engine piston ring rail vehicles currently used standard "TB / T 1382-2006 locomotives, diesel engine parts piston ring", the standard specifies the locomotives, diesel engine piston ring of the technical requirements, inspection rules, test methods and signs, packaging, transportation and storage requirements.