Imashini yo gusubiza impapuro z'ubwiherero inyuma

Imashini ihindura impapuro zo mu bwiherero ni kimwe mu bikoresho by'ingenzi cyane mu mashini zikoresha impapuro zo mu bwiherero. Inshingano yayo nyamukuru ni uguhindura impapuro nini (ni ukuvuga impapuro mbisi zo mu bwiherero zaguzwe mu nganda zikora impapuro) mu mizingo mito y'impapuro zo mu bwiherero zikoreshwa n'abaguzi.

Imashini isubiza inyuma ishobora guhindura ibipimo nko uburebure n'uburemere bw'isubira inyuma uko bikenewe, kandi zimwe mu mashini zigezweho zo gusubiza inyuma zifite imikorere nko gushyira kole mu buryo bwikora, gupfumura, gushushanya, nibindi, kugira ngo zongere ubwiza n'imikorere y'impapuro z'isuku. Urugero, imashini isubiza inyuma impapuro z'isuku yo mu 1880 ikwiriye cyane mu mirimo yo mu rugo cyangwa mu nganda nto zitunganya impapuro z'isuku. Ingano y'impapuro zayo zatunganyijwe ikwiriye impapuro nini ziri munsi ya metero 2.2, zifite urwego rwo hejuru rw'imikorere, bishobora kuzigama amafaranga y'abakozi.