Te whakarōpūtanga hua me te wehewehenga koki rauemi
Mai i te tirohanga o te hanga rauemi whakamākū, ko ngā whakamākū ru te nuinga o ngā whakamākū ru waipēhi me te hau, me ngā whakamākū ru whakamākū taurangi.
Momo waipēhi
He whānuitia te whakamahinga o te pūwero ru waipēhi i roto i te pūnaha whakatārewatanga motuka. Ko te kaupapa matua, ina neke whakamua, ina neke whakamua te anga me te toki, ā, ina neke whakamua, ina neke whakamua te piston i roto i te oko rango o te pūwero ru, ka rere tonu te hinu i roto i te whare pūwero ru mai i te kōhao o roto mā roto i ētahi pūwero whaiti ki roto i tētahi atu kōhao o roto. I tēnei wā, ka hangaia e te waku i waenga i te wai me te pakitara o roto me te waku o roto o ngā ngota wai he kaha whakaiti i te wiri.
Pupuhi
He momo hou te pūwero ru pupuhi i whakawhanakehia mai i te tekau tau atu i 1960. Ko te tauira whai huatanga e tohuhia ana e te mea ka tāutahia he piston mānu ki te pito o raro o te oko rango, ā, ka whakakīia he rūma hau kati i hangaia e te piston mānu, ā, ka whakakīia tetahi pito o te oko rango ki te hauota pēhanga teitei. Ka tāutahia he mowhiti-O nui ki te piston mānu, e wehea katoatia ai te hinu me te hau. Kei te piston mahi he takirere kōpeketanga me he takirere toronga e whakarerekē ana i te horahanga whakawhiti o te awa me tōna tere neke. Ina peke ake, ina peke iho te wira, ka neke te piston mahi o te pūwero ru ki mua, ki muri i roto i te wai hinu, ka hua ake he rerekētanga pēhanga hinu i waenga i te rūma o runga me te rūma o raro o te piston mahi, ā, ka panaia e te hinu pēhanga te takirere kōpeketanga me te takirere toronga ka rere ki mua, ki muri. I te mea ka whakaputa te takirere i te kaha whakaiti nui ki te hinu pēhanga, ka whakaitihia te wiri.
Te wehewehenga koki hanganga
Ko te hanganga o te pūwero ru ko te whakauru i te tokotoko piston me te piston ki roto i te rango, ā, ka whakakīia te rango ki te hinu. He kōhao kei te piston kia taea ai e te hinu i ngā wāhanga e rua o te wāhi i wehea e te piston te tāpiri tetahi ki tetahi. Ka puta te whakamātao ina haere te hinu matotoru mā roto i te kōhao. Ko te iti o te kōhao, ko te nui ake o te kaha whakamātao, ko te nui ake o te matotoru o te hinu, ā, ko te nui ake o te kaha whakamātao. Mena ka noho tonu te rahi o te kōhao, ina tere te mahi a te pūwero ru, ka pā te whakamātao nui ki te mimiti o te pānga. Nō reira, ka whakatakotoria he takirere puna rau āhua kōpae ki te putanga o te kōhao. Ina piki te pēhanga, ka panaia te takirere kia tuwhera, ka piki te whakatuwheratanga o te kōhao, ā, ka heke te whakamātao. Nā te mea ka neke te piston i ngā taha e rua, ka tāutahia ngā takirere puna rau ki ngā taha e rua o te piston, e kiia ana ko te takirere kōpeketanga me te takirere toronga.
E ai ki tōna hanganga, ka wehea te ngongo ru ki te rango kotahi me te rango takirua. Ka taea hoki te wehewehe ki ēnei momo: 1. Ngongo ru hau kotahi te rango; 2. Ngongo ru pēhanga hinu rango takirua; 3. Ngongo ru hau wai rango takirua.
Peera takirua
Ko tōna tikanga, e rua ngā rango o roto, o waho hoki o te pūwero ru, ā, ka neke te piston i roto i te rango o roto. Nā te urunga me te tangohanga o te tokotoko piston, ka piki ake, ka whakaitihia te nui o te hinu i roto i te rango o roto. Nō reira, me pupuri te taurite hinu i roto i te rango o roto mā te whakawhitiwhiti ki te rango o waho. Nō reira, me whā ngā takirere i roto i te pūwero ru takirua, arā, hei tāpiri atu ki ngā takirere whakatere e rua i runga i te piston kua whakahuatia i runga ake nei, kei reira anō ngā takirere rere me ngā takirere utu kua tāutahia i waenganui i ngā rango o roto, o waho hoki hei whakaoti i te mahi whakawhitiwhiti.
Momo oko kotahi
Ki te whakatauritea ki te ngongo ru rango rua, he māmā te hanganga o te ngongo ru rango kotahi, ā, he iti iho te pūnaha takirere. Kei te taha raro o te oko rango he piston mānu (ko te tikanga o te mea mānu, kāore he tokotoko piston hei whakahaere i tana nekehanga). Ka hangaia he rūma hau kati i raro i te piston mānu, ā, ka whakakiia ki te hauota pēhanga teitei. Ko te huringa o te taumata wai i runga ake nei nā te hinu e tomo ana, e puta ana i te tokotoko piston ka whakarerekētia aunoa e te mānu o te piston mānu. Haunga ngā mea i runga ake nei
