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Ko te mātai i ngā pū kīrehe OEM-tūmatau, ko ngā mahi mō te whakarite i ngā pū e hono ana i te hanganga tūpato me ngā rauropi whai wawatetanga hei whakamana i ngā huringa nui o ngā motokā hou. Ko ngā pū herehere herehere āpure e mau ana i ngā takirua whatitiri (HRC 60-62) me ngā pūpuke herehere nitride, e taea ana ki te whakarite i ngā paetaha tuatahi he 500 bar, ā, ko ngā pū āpure e mau ana i ngā moa herehere matihiko (whakarite IP68) hei whakamutu i te herehere ā-pūmotu. Ko ngā pū common rail e mau ana i ngā tohu paetaha me te wāwhanga ±1.5% me ngā puipui solenoid me ngā wā whakahokia 0.1ms, hei whakaae ki ngā ture whakatupu Euro 6. Ka whakamahi ia pū i ngā whakamātau herehere mō 72 waehora, e āwhina ana i te huringa wera mai i -40°C ki +125°C me ngā tirotiro paihere kīwai hei whakatakoto i te wawe paihere. Kei a tātou ngā whakarite tika mō ngā raraunga nui, pērā i Volkswagen TDI, Honda i-VTEC, me Toyota D-4S, e tautoko ana i ngā rārangi whakamahinga whai take mō +500 momo motokā. E hanga ana ngā pū nei ki te whakapai i te whakamahi āpure i runga i te 15%, ahakoa te iti iho i ngā rekoata me ngā hurihuri.