Te Mātāpono Whakahaere o te Takirere Pūrerehua Hau

 A takirere pūrerehua hauhe takirere huri-hauwhā e whakamahia ana hei whakahaere, hei wehe rānei i te rere o te wai i roto i te paipa. He kōpae porowhita tōna (e kiia ana he "kōpae") e mau ana ki runga i te kakau, e hurihuri ana i roto i te tinana takirere. Ko te "hauātea" e pā ana ki te tikanga whakaoho, e whakamahi ana i te hau kōpeke hei whakahaere i te takirere, e āhei ai te whakahaere mamao, aunoa rānei.

Ka taea te wehewehe i te takirere pūrerehua hau kia rua ngā wāhanga matua: te kaiwhakaoho hau me te takirere pūrerehua.

· Tinana takirere pūrerehua: Kei roto i tēnei ko te tinana takirere, te kōpae (kōpae), te kakau, me te nohoanga. Ka huri te kōpae i te kakau hei whakatuwhera me te kati i te takirere.

· Pūwhakaoho hau: Ka whakamahi i te hau kōpeke hei pūtake hiko, ka peia he piston, he vane rānei hei whakaputa i te nekehanga rārangi, hurihuri rānei.

 

Ngā Wāhanga Matua

*Taupā Pūrerehua:

- Tinana Takirere: Ko te whare e pupuri ana i te kōpae, e hono ana hoki ki te paipa.

- Kōpae (kōpae): He pereti papatahi, he pereti paku teitei rānei e whakahaere ana i te rere. Ina puritia kia rite ki te ahunga rere, ka tuwhera te takirere; ina puritia kia poutū, ka kati.

- Kākano: Te tokotoko e hono ana ki te kōpae e tuku ana i te kaha hurihuri mai i te kaiwhakahaere.

- Ngā hiri me ngā nohoanga: Me whakarite kia mau te kati, kia kore ai e turuturu.

*Kaiwhakaoho

- Pūwhakaoho hau: He momo piston, he momo diaphragm rānei, ka hurihia te pēhanga hau hei nekehanga miihini. Ka taea te mahi takirua (te pēhanga hau mō te whakatuwhera me te kati) te mahi kotahi rānei (te hau mō te taha kotahi, te puna mō te whakahokinga mai).

2. Te Mātāpono Whakahaere

Ko te mahi a te takirere pūrerehua hau he tukanga mekameka o te "whakaoho hau pēhi"→te whakahohenga o te pūwhakaoho→te hurihanga o te kōpae hei whakahaere i te rere." I roto i ngā kupu māmā, ka hurihia te pūngao hau (te hau kōpeke) hei nekehanga miihini hurihuri hei whakanoho i te kōpae.

 2.1. Tukanga Whakahohe:

- Ka tukuna te hau kōpeke mai i tētahi pūtake o waho (pēnei i te kōpeke, i te pūnaha whakahaere rānei) ki te pūwhakaoho hau.

- I roto i tētahi pūwhakaoho mahi-rua, ka tomo te hau ki tētahi putanga hei huri i te kakau takirere ki te taha matau (arā, hei whakatuwhera i te takirere), ka tomo ki tētahi atu putanga hei huri i te taha maui. Ka puta he nekehanga rārangi i roto i te piston, i te diaphragm rānei, ka hurihia hei hurihanga 90-tohu mā te tikanga rack-and-pinion, Scotch-yoke rānei.

- I roto i te pūwhakaoho kotahi-mahi, ka panaia te piston e te pēhanga hau ki te puna hei whakatuwhera i te takirere, ā, mā te tukunga o te hau ka taea e te puna te kati aunoa (hoahoa haumaru-kore).

 2.2. Te Mahi o te Takirere:

- I te hurihanga o te kakau takirere e te actuator, ka huri te kōpae i roto i te tinana takirere.

- Tūnga Tuwhera: Kei te taha whakarara te kōpae ki te ahunga rere, e whakaiti ana i te ātete, e tuku ana hoki i te rere katoa mā roto i te paipa. - Tūnga kati: Ka huri te kōpae 90 nekehanga, poutū ki te rere, e ārai ana i te ara, e hiri ana hoki ki te nohoanga.

- Ka taea e te tūranga waenga te whakawhāiti i te rere, ahakoa he pai ake ngā takirere pūrerehua mō te ratonga whakaweto-whakaweto i te whakahaere tika nā ō rātou āhuatanga rere kore-raina.

 2.3. Mana Whakahaere me te Urupare:

- Ko te actuator te tikanga ka honoa ki te takirere solenoid, ki te pūwāhi rānei hei whakahaere tika mā ngā tohu hiko.

- Ka taea e te pūoko te whakarato urupare tūranga takirere hei whakarite i te mahi pono i roto i ngā pūnaha aunoa. 

3. Mahi Kotahi me te Mahi Takirua