Ọkụ azụ maka kreenu

Kreen na-arụ ọrụ dị mkpa karị na ndụ mmadụ. E nwere ọtụtụ ụdị kreen, nke nwere ike ime ka e bulite, bufee na ibupụ, ibuli na ọrụ ndị ọzọ. E nwere obere kreen, nnukwu kreen, kreen nwere ọgụgụ isi, wdg. Mmalite nke akụrụngwa ndị a edozila nsogbu nke ibuli na ibugharị ọrụ ahụ nke ọma.

Ndozi na nrụzi nke kreen dị oke mkpa, nke metụtara nchekwa na arụmọrụ nke ọrụ kreen, ọ na-ekpebikwa ogologo ndụ ọrụ nke kreen ahụ. Ka kreen ahụ wee nwee ike ịmepụta uru akụ na ụba kachasị elu. N'oge ọrụ kreen, ụfọdụ akụkụ ma ọ bụ pulleys ga-emebi emebi, na-aka nká ma ọ bụ ọbụna mebie. Ugbu a, ka anyị were mkpanaka hydraulic nkwado nke kreen dị ka ihe atụ. Gịnị bụ ọrụ nke mkpuchi ihu nke kreen iji kwado mkpanaka hydraulic? Enwere ike iji mkpanaka nkwado kreen kwado elu. Ọ na-eji ụdị mkpụkọ gas, nke ike sitere na ya na-agbanwekarị.mkpakọ gas. Ụkpụrụ nke itinye spring ikuku a gbanyere mkpọrọgwụ na mkpanaka nkwado kreen bụ na mgbe ike dị na spring buru ibu, oghere dị n'ime spring ga-ebelata, ikuku dị n'ime spring ga-adịkwa ma pịpịa. Mgbe a gbanyere ikuku ruo n'ókè ụfọdụ, spring ga-emepụta ike na-agbanwe agbanwe. N'oge a, spring ga-enwe ike ịlaghachi n'ụdị tupu mgbanwe, ya bụ, ọnọdụ mbụ. Spring ikuku a gbanyere mkpọrọgwụ nwere ike ịrụ ọrụ nkwado dị mma, yana ọrụ nchekwa na braking dị mma. Ọzọkwa, spring ikuku a gbanyere mkpọrọgwụ pụrụ iche nwekwara ike ịrụ ọrụ dị ike na nhazi akụkụ na nnabata ujo.