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Ni ibihe bipimo bine bya moteri ifite ibipimo bine?
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Ni ibihe bipimo bine bya moteri ifite ibipimo bine?

2024-08-07

Ni ibihe bipimo bine bya moteri ifite ibipimo bine?

Moteri y'imodoka ifite amagare ane ni moteri ikoresha umuriro w’imbere ikoresha uburyo bune butandukanye bwa piston (intake, compression, power na exhaust) kugira ngo irangize imikorere. Piston irangiza uburyo bubiri bwuzuye muri silinda kugira ngo irangize imikorere. Uburyo bumwe bwo gukora busaba ko crankshaft izenguruka kabiri, ni ukuvuga 720°.

moteri ya lisansi.jpg

Moteri zikoresha ibyuma bine (four-stroke cycle moteri) ni zo zikunze gukoreshwa cyane Moteri ntoyas. Moteri ifite stroke enye ikora stroke eshanu mu gihe kimwe, harimo stroke yo kwinjira, stroke yo gukanda, stroke yo gushyushya, stroke yo gukoresha ingufu n'stroke yo gusohora umwotsi.

 

Intake yo gutera stroke

Igikorwa cyo kwinjira kivuga igihe uruvange rw'umwuka n'amavuta rushyirwamo kugira ngo rwuzuze icyumba cyo gutwika. Igikorwa cyo kwinjira kibaho iyo piston ivuye hagati hejuru ijya hagati hasi hanyuma valve yo kwinjira igakinguka. Inzira ya piston yerekeza hagati hasi itera umuvuduko muke muri silinda. Umuvuduko w'ikirere utuma uruvange rw'umwuka n'amavuta rwinjira muri silinda binyuze muri valve ifunguye kugira ngo rwuzuze agace gafite umuvuduko muke gaterwa no kugenda kwa piston. Silinda ikomeza kuzuza gato hagati hasi idafite umuvuduko mu gihe uruvange rw'umwuka n'amavuta rukomeza gutemba hamwe n'ubudahangarwa bwarwo kandi piston itangira guhindura icyerekezo. Nyuma ya BDC, valve yo kwinjira ikomeza gufunguka mu gihe gito cyo kuzunguruka kwa crankshaft. Biterwa n'imiterere ya moteri. Valve yo kwinjira irafunga hanyuma uruvange rw'umwuka n'amavuta rugafungwa muri silinda.

 

Gukandagira Gukandagira ni igihe uruvange rw'umwuka n'amavuta rwafatiwe rukandagira muri silindiri. Icyumba cyo gutwika gifunze kugira ngo habeho gusharija. Gukandagira ni ingano y'uruvange rw'umwuka n'amavuta rwakandagiye mu cyumba cyo gutwika cyiteguye gucana. Gukandagira uruvange rw'umwuka n'amavuta bitanga ingufu nyinshi mu gihe cyo gucana. Vali zo kwinjira n'izisohora umwuka zigomba gufungwa kugira ngo silindiri ifunze kugira ngo itange gusharija. Gukandagira ni inzira yo kugabanya cyangwa gukanda ingufu mu cyumba cyo gutwika kuva ku ngano nini kugera ku ngano nto. Ipine ifasha kugumana imbaraga zikenewe kugira ngo gusharija gukandagira.

 

Iyo pisitoni ya moteri ikandagiye umuriro, kwiyongera kw'imbaraga zo gukanda zitangwa n'akazi kakozwe na pisitoni bitanga ubushyuhe. Gukanda no gushyushya umwuka w'umwuka uva kuri lisansi bitera kwiyongera k'ubushyuhe bwo gukandagira no kwiyongera k'umwuka uva kuri lisansi. Ukwiyongera k'ubushyuhe bwo gukandagira bibaho kimwe mu cyumba cyo gutwika kugira ngo bitume umuriro wihuta (oxidation y'amavuta) nyuma yo gushya.

 

Ubwinshi bw'ubushyuhe bwa lisansi buriyongera iyo uduce duto twa lisansi twiyushye burundu bitewe n'ubushyuhe buturuka ku muriro. Ubwinshi bw'ubuso bw'uduce twa lisansi bugaragara ku muriro butuma umuriro utwikwa neza mu cyumba cy'umuriro. Umwotsi wa lisansi ni wo wonyine uzashya. Ubwinshi bw'ubuso bw'uduce twa lisansi butuma lisansi irekura umwuka mwinshi aho kuguma mu mazi.

 

Uko molekile z’umwuka zishyushye zirushaho gukandamizwa, ni ko ingufu nyinshi zibona mu buryo bwo gutwika. Ingufu zisabwa kugira ngo ukandamire umuriro ni nke cyane ugereranyije n’ingufu zitangwa mu gihe cyo gutwika. Urugero, muri moteri nto isanzwe, ingufu zisabwa kugira ngo ukandamire umuriro ni kimwe cya kane cy’ingufu zitangwa mu gihe cyo gutwika.

Igipimo cyo gukanda (compression ratio) cya moteri ni ukugereranya ingano y'icyumba cyo gutwika iyo piston iri hasi hagati yapfuye n'ingano y'icyumba cyo gutwika iyo piston iri hejuru hagati yapfuye. Iki gice, hamwe n'imiterere n'imiterere y'icyumba cyo gutwika, ni byo bigena ingano y'icumba cyo gukanda. Moteri ya lisansiUbusanzwe s igira igipimo cyo gukanda hagati ya 6 na 1 na 10 na 1. Uko igipimo cyo gukanda kiri hejuru, niko moteri irushaho gukoresha neza lisansi. Igipimo cyo gukanda kiri hejuru akenshi cyongera cyane umuvuduko w'umuriro cyangwa imbaraga zikora kuri piston. Ariko, igipimo cyo gukanda kiri hejuru cyongera imbaraga zisabwa n'umukoresha kugira ngo atangize moteri. Moteri zimwe na zimwe nto zifite sisitemu zigabanya umuvuduko mu gihe cyo gukanda kugira ngo zigabanye imbaraga zisabwa n'umukoresha mu gihe cyo gutangiza moteri.

 

Igikorwa cyo gutwika Ikintu cyo gutwika kibaho iyo umuriro utangiye gushya kandi ukongera gushya vuba binyuze mu buryo bwa shimi kugira ngo urekure ingufu z'ubushyuhe. Gutwika ni uburyo bwa shimi butuma lisansi yihuta aho ibikomoka ku binyabutabire bihuzwa na ogisijeni yo mu kirere maze bigasohora ingufu mu buryo bw'ubushyuhe.

moteri ya lisansi ifite stroke 4.jpg

Gutwika neza bisaba igihe gito ariko gito aho umuriro ukwirakwira mu cyumba cyose cy’umuriro. Ishashi iri ku gice cy’umuriro gitangira gushya iyo crankshaft izunguruka hafi 20° mbere y’uko hagati. Ogisijeni yo mu kirere n’umwuka w’ibikomoka kuri peteroli bikoreshwa n’imbere y’umuriro. Imbere y’umuriro ni urukuta rw’umupaka rutandukanya umuriro n’ibikomoka ku muriro. Imbere y’umuriro inyura mu cyumba cy’umuriro kugeza umuriro wose utwitswe.

 

imbaraga zikoreshwa mu gutera

Uburyo bwo gushyushya ni uburyo moteri ikoresha umwuka ushyushye utuma umutwe wa piston uva ku mutwe wa silindiri. Imbaraga za piston n'uburyo bukurikiraho byoherezwa binyuze mu nkoni ihuza kugira ngo torque ishyirwe kuri crankshaft. Uburyo bwo gushyushya butangira kuzunguruka kwa crankshaft. Ingano ya torque ikorwa igenwa n'igitutu kiri kuri piston, ingano ya piston n'uburyo moteri ikoresha. Mu gihe cyo gushyushya, valve zombi zirafungwa.

 

Guhagarika umwuka Uruhu rwo mu kirere (Exhaust stroke) Guhagarara k'umwuka usohoka bibaho iyo imyuka isohoka mu cyumba cyo gutwika ikajya mu kirere. Guhagarara k'umwuka usohoka ni byo bihita bibaho iyo valve isohoka ifunguye kandi valve ifata ifunze. Inzira ya piston isohora imyuka isohoka mu kirere.

 

Iyo piston igeze hasi hagati mu gihe cyo gushyushya umuriro, umuriro uba wuzuye maze silinda yuzura imyuka isohora umwuka. Valve isohora umwuka irafunguka, maze ubukana bw'urukiramende n'ibindi bice bigenda bisunika piston inyuma hagati hejuru, bigatuma imyuka isohora umwuka isohoka inyuze muri valve ifunguye. Mu mpera y'ishyushya umuriro, piston iba iri hejuru hagati hasi kandi uruziga rw'akazi rurarangira.