Dabere na nyocha nke isi ihe na-eyi uwe, akụkụ "cylinder liner-piston ring" nke injin mmiri na-agụnye ụdị ejiji anọ ndị a:

(1) Ike ọgwụgwụ na-eyi bụ ihe na-eme ka esemokwu dị n'elu na-emepụta nnukwu nrụrụ na nrụgide na mpaghara kọntaktị ma na-emepụta mgbawa ma bibie. Ike ọgwụgwụ bụ nke mgbakasị esemokwu nke akụrụngwa akụrụngwa na oke nkịtị;

(2) Abrasive eyi bụ ihe na-eme ka ụmụ irighiri ihe ndị siri ike na-eme ka abrasions na ihe ndị dị n'elu na-awụfu n'elu akụkụ nke esemokwu abụọ nke mmegharị ahụ. Mwepu abrasive dị ukwuu ga-ehichapụ mgbidi cylinder engine, nke na-eduga ozugbo na ihe isi ike nke mmanụ mmanụ n'elu mgbidi cylinder ahụ. Ihe nkiri mmanụ na-eme ka ọkpụkpụ na-abawanye ụba, na aluminom na silicon na mmanụ ụgbọala bụ isi ihe na-akpata abrasive wear;

(3) Adhesion na abrasion bụ n'ihi mmụba nke nrụgide dị n'èzí ma ọ bụ ọdịda nke usoro mmanye mmanụ, "adhesion" nke elu di na nwunye esemokwu na-eme. Adhesion na abrasion bụ ụdị ejiji dị oke njọ, nke nwere ike ime ka peeling nke ihe mkpuchi ihe pụrụ iche dị n'elu cylinder liner, na-akpata nnukwu nsogbu na ọrụ nkịtị nke engine;

(4) corrosion na eyi bụ ihe nhụsianya nke mfu kemịkalụ ma ọ bụ mmeghachi omume electrochemical n'etiti ihe dị n'elu na ihe ndị gbara ya gburugburu n'oge mmegharị nke elu nke ụzọ esemokwu ahụ, na ọnwụ ihe kpatara n'ibu ọrụ. N'ihe banyere corrosion siri ike na iyi, ihe dị n'elu mgbidi cylinder ahụ ga-apụ apụ, na ọbụna mgbe mmegharị ahụ nke akụkụ abụọ nke esemokwu ahụ na-eme, mkpuchi elu ga-atụfu ihe onwunwe mbụ ma mebie nke ukwuu.