ʻO ka pahu kaulike hydraulic Excavator hydraulic cylinder valve core CBCH-LJN

Hoʻokaʻawale ʻia ka valve hana pololei a me ka valve pilote e like me ke ʻano o ka valve, ʻo ka ʻokoʻa maʻamau ma waena o nā mea ʻelua ʻo ia ka hoʻokahi kino o ka valve hana pololei, a ʻelua kino ka pahu pilot. ʻO kekahi ke kino valve nui a ʻo kekahi ʻo ke kino valve kōkua. I waena o lākou, ʻaʻole ʻokoʻa loa ke kino valve nui mai ke ʻano hana pololei i ke ʻano; Ua kapa ʻia ke kino valve kōkua ʻo ka valve pilot, ʻo ia ka mea e like me ka valve liʻiliʻi.
I ka manaʻo, ʻo nā mea like ma waena o nā valve hana pololei a me nā valve i hoʻohana ʻia e ka pilote e hoʻomalu i ka wehe a me ka pani ʻana o ke kumu o ka valve ma o ke kaulike ʻole o ka ikaika e hana ana ma ka puʻuwai o ka valve nui (me ke kaomi ʻaila a me ka ikaika puna, etc. ). ʻO ke ʻano hana pololei ʻo ia ka ʻaila kaomi (ʻaila) o ka ʻōnaehana e hana pololei ma ka puʻuwai o ka valve nui a me ke kaulike me nā ikaika ʻē aʻe (e like me ka punawai puna) e hoʻomalu i ka hana wehe a pani ʻana o ke kumu valve; Hoʻololi ʻia ke ʻano hoʻokele ma ka wehe ʻana a pani ʻana i ke kumu valve o ka valve kōkua (pilot valve)
Hoʻohana ʻia ke koena o ka ikaika ma ka puʻuwai o ka valve nui e kāohi i ka hana wehe a pani ʻana o ke kikowaena valve nui. No ka puʻuwai valve nui
No ka laʻana, no ka hoʻohana ʻana o ka valve pilote i ke kumu o ka valve auxiliary e hoʻololi i ke koena o ka ikaika valve nui, ma kahi o
Directly e ka aila puʻe e hoʻololi i ke koena o ka nui valve ikaika, no laila, aia kekahi 'ano pololei me ka pololei 'ano o ka "indirect" i kapaia.