Wonke amabhulashi okusika amandla egesi, umshini wokugunda, ama-blower nama-chainsaw asebenzisa injini ye-piston efana nezici ezibalulekile kuleyo esetshenziswa ezimotweni.Kukhona umehluko, nokho, okuphawuleka kakhulu ekusetshenzisweni kwezinjini zomjikelezo ezimbili kumasaha amaketango kanye nesinqamuli sotshani.
Manje Ake siqale ekuqaleni futhi sibone ukuthi izinjini ezinemijikelezo emibili nezivame kakhulu ezinemijikelezo emine zisebenza kanjani.Lokhu kuzokusiza kakhulu ukuthi uqonde ukuthi kwenzekani uma injini ingasebenzi.
Injini ikhulisa amandla ngokushisa ingxube kaphethiloli nomoya endaweni ebiyelwe encane ebizwa ngokuthi i-combustion chamber, ebonakala esithombeni.Njengoba uphethiloli oxubile uvutha, ushisa kakhulu futhi ande, njengoba nje i-mercury ekwi-thermometer ikhula futhi ikhuphuka ikhuphuke eshubhu lapho izinga lokushisa likhuphuka.”
Igumbi elivuthayo livalwe ezinhlangothini ezintathu, ngakho ingxube yegesi ekhulayo ingaphusha iye ohlangothini olulodwa kuphela, iye phansi epulagini elibizwa ngokuthi i-piston-elinokulingana okushelelayo eduze kusilinda.Ukusunduza phansi kwepiston kungamandla omshini.Lapho sinamandla ayindilinga, singaphendula i-brush cutter blade, isaha seketango, i-auger yokuvuthela iqhwa, noma amasondo emoto.
Ekuguquleni, i-piston ixhunywe ku-crankshaft, yona enamathiselwe ku-crankshaft enezingxenye ze-offset.I-crankshaft isebenza njengamaphedali kanye ne-sprocket eyinhloko ebhayisikilini.
Uma uhamba ngebhayisikili, ukucindezela okwehlayo konyawo lwakho ku-pedal kuguqulwa kube ukunyakaza okuyisiyingi yi-pedal shaft.Ukucindezela konyawo lwakho kufana namandla adalwe yingxube yamafutha avuthayo.I-pedal yenza umsebenzi we-piston kanye nenduku yokuxhuma, futhi i-pedal shaft ilingana ne-crankshaft.Ingxenye yensimbi lapho isilinda ibhorekile ibizwa ngokuthi ibhulokhi yenjini, kanti ingxenye engezansi lapho i-crankshaft ifakwe khona ibizwa ngokuthi i-crankcase.Igumbi elivuthayo elingaphezu kwesilinda lakhiwe kukhava yensimbi yesilinda, ebizwa ngokuthi i-cylinder head.
Njengoba induku yokuxhuma ipiston iphoqeleka phansi, futhi iphusha ku-crankshaft, kufanele ijike iye phambili naphambili.Ukuvumela lokhu kunyakaza, induku ifakwe kuma-bearings, enye ku-piston, enye endaweni yokuxhumana yayo ku-crankshaft.Kunezinhlobo eziningi zama-bearings, kodwa kuzo zonke izimo umsebenzi wabo ukusekela noma yiluphi uhlobo lwengxenye ehambayo engaphansi komthwalo.Endabeni yenduku yokuxhuma, umthwalo usuka ku-piston ehamba phansi.I-bearing iyindilinga futhi ishelele kakhulu, futhi ingxenye emelene nayo kufanele ibe bushelelezi.Inhlanganisela yezindawo ezibushelelezi akwanele ukuqeda ukungqubuzana, ngakho uwoyela kufanele ukwazi ukungena phakathi kwe-bearing kanye nengxenye oyisekelayo ukuze unciphise ukungqubuzana.Uhlobo oluvame kakhulu lokuthwala luwumklamo ongenalutho, indandatho ebushelelezi noma mhlawumbe amagobolondo amabili ayingxenye akha indandatho ephelele, njengaku-ll.
Nakuba izingxenye eziboshelwa ndawonye zenziwe ngomshini ngokucophelela ukuze zilingane, ukwenza imishini kukodwa akwanele.Ngokuvamile kufanele kubekwe uphawu phakathi kwazo ukuze kuvinjelwe ukuvuza komoya, uphethiloli noma uwoyela.Uma uphawu luwucezu lwempahla eyisicaba, lubizwa ngokuthi i-gasket.Izinto ezivamile ze-gasket zihlanganisa irabha yokwenziwa, ukhokho, i-fiber, i-asbestos, insimbi ethambile nezinhlanganisela zalokhu.I-gasket, isibonelo, isetshenziswa phakathi kwekhanda le-cylinder kanye ne-injini block.Ngokufanelekile, ibizwa ngokuthi i-cylinder head gasket.
Manje ake sibhekisise ukusebenza kwangempela kwenjini kaphethiloli, okungenzeka kube yizinhlobo ezimbili: umjikelezo we-two-stroke noma i-four-stroke.
Isikhathi sokuthumela: Jan-11-2023