Taku Puna Hau E Noho

TE PUNA HAUREHU O TE KĀPITI ME TŌNA MAHI

He mea hanga te puna hau o te kāpata ki tētahi rango maitai kei roto te hau (hauota) i raro i te pēhanga, me tētahi tokotoko e paheke ana ki roto, ki waho hoki i te rango mā roto i tētahi arataki hiri.

Ina pēhia te hau e te whakahokinga o te tokotoko, ka puta he kaha hei whakahoki, he rite ki te puna. Ki te whakatauritea ki ngā puna mīhini tuku iho, he tata papatahi te pihi kaha o te puna hau ahakoa mō ngā whiu roa rawa. Nō reira, ka whakamahia ki ngā wāhi katoa e hiahiatia ana he kaha e rite ana ki te taumaha hei hiki, hei neke rānei, hei taurite rānei i te hiki i ngā taputapu taumaha neke.

Ko ngā whakamahinga tino kitea ka kitea i ngā tatau tāonga whare, i ngā taputapu hauora me ngā taputapu whakapakari tinana, i ngā arai me ngā tuanui e whakahaerehia ana e te motuka, i ngā matapihi tuanui he mea hono ki raro, me roto i ngā kaute hoko o te hūperamākete.

I tōna putanga māmā rawa, ko te puna hau he rango me te tokotoko piston, kei te pito he piston e mau ana, e whakatutuki ana i ngā huringa pēhitanga me te toronga o te rango mā roto i tētahi arataki hiri. Kei roto i te rango te hauota i raro i te pēhanga me te hinu. I te wā pēhitanga, ka haere te hauota mai i raro i te piston ki te wāhanga o runga mā roto i ngā awaawa.

I tēnei wāhanga, ko te pēhanga i roto i te rango, nā te iti o te rōrahi e wātea ana nā te whakaurunga o te tokotoko piston, kei te piki haere, ka hua ake te pikinga o te kaha (te ahunga whakamua). Mā te whakarerekē i te wāhanga whakawhiti o ngā awa, ka taea te whakarerekē i te rere o te hau kia puhoi, kia tere ake rānei te tere o te reti o te tokotoko; mā te whakarerekē i te huinga o ngā diameter o te rango/tokotoko piston, te roa o te rango me te nui o te hinu, ka taea te whakarerekē i te ahunga whakamua.