Aosite, daga baya 1993
Nau'in bututun iskar gas yana da tsayi mai tsayi a cikin 'yanci (ƙananan bugun jini), kuma ana iya matsawa zuwa ɗan ƙaramin tsayi (babban bugun jini) bayan an yi masa matsin lamba na waje wanda ya fi ƙarfinsa. Tushen iskar gas mai 'yanci yana da yanayin matsatsi ne kawai (iri biyu na matsin lamba na waje da yanayi kyauta), kuma ba zai iya kulle kansa yayin bugun jini. Tushen iskar gas mai kyauta yana taka rawar tallafi. Ka'idar samar da iskar gas mai kyauta shine cewa bututun matsa lamba yana cike da iskar gas mai ƙarfi, kuma piston mai motsi yana da rami ta rami don tabbatar da cewa matsa lamba a cikin bututun matsa lamba ba zai canza tare da motsi na piston ba. Babban ƙarfin maɓuɓɓugar iskar gas shine bambancin matsa lamba tsakanin bututun matsa lamba da matsa lamba na yanayi na waje da ke aiki akan sashin giciye na sandar piston. Tun lokacin da matsa lamba na iska a cikin bututun matsa lamba ba ya canzawa, kuma ɓangaren giciye na sandar piston yana dawwama, ƙarfin iskar gas ɗin ya kasance koyaushe koyaushe yayin duka bugun jini. An yi amfani da maɓuɓɓugan iskar gas na kyauta a cikin motoci, injinan gini, injin bugu, kayan yadi, injin taba, kayan aikin magunguna da sauran masana'antu saboda haskensu, aikin kwanciyar hankali, aiki mai dacewa, da farashin fifiko.