Udukingirizo tw’umuriro, tuzwi cyane nka plugs z’umuriro, dukora nk’umuvuduko w’amazi ya piezoelectric afite voltage nyinshi ava mu cyuma gishyushya umuriro (plugs z’umuriro), kizasenya umwuka hagati y’amashanyarazi ya plugs z’umuriro, bigatanga amashanyarazi yo gutwika uruvange rwa gazi muri silinda. Ibisabwa by’ibanze kuri moteri ifite imikorere myiza: ingufu nyinshi, uruvange rumwe, igipimo cyo gukanda cyane. Imodoka zifite moteri zitwika imbere muri rusange zikoresha lisansi na mazutu. Ku isoko ry’imodoka mu Bushinwa, imodoka za lisansi zifata igice kinini. Moteri za lisansi zitandukanye na moteri za mazutu kuko lisansi ifite aho ishyushya cyane (hafi dogere 400), bisaba umuriro ukabije kugira ngo ishyushye uruvange. Binyuze mu gusohora hagati ya electrodes kugira ngo ikore plugs, moteri ya lisansi ikoresha lisansi na gazi mu buryo bwihuse kugira ngo itange ingufu, ariko kubera ko lisansi nubwo iri mu bushyuhe bwinshi bigoye kuyitwika mu buryo bwihuse, kugira ngo itwikwe ku gihe ni ngombwa gukoresha "umuriro" kugira ngo ishyushye. Aha gutwika ni imikorere ya "plugs z’umuriro".
