Kodi API imatanthauza chiyani mumafuta agalimoto?

Dzina la injini yamafuta API limayimira American Petroleum Institute. API ndiye bungwe lalikulu kwambiri lazamalonda pamakampani amafuta ndi gasi. Kuphatikiza pa ntchito zambiri, API imagawa makope opitilira 200,000 a zolemba zake zamaukadaulo pachaka. Zolembazi zimakambirana zaukadaulo ndi zofunikira zomwe zimafunikira kuti zitheke.

Kukula kwa API sikungokhudza makampani amafuta ndi gasi, komanso makampani aliwonse omwe amakhudza zokonda zamafuta. Chifukwa chake, API imathandizira magulu osiyanasiyana monga muyezo wa API wamageji olondola a ulusi, injini zoyatsira (dizilo), ndi mafuta.

API mafuta classification system

Pakati pa miyezo yambiri ya API, pali dongosolo lomwe limatsimikizira kuti mafuta amapereka chitetezo cha injini yofanana. Amatchedwa SN classification system ndikuvomerezedwa mu 2010, imalowa m'malo mwa dongosolo lakale la SM. CH System imapereka:

• Kupititsa patsogolo chitetezo cha pistoni pa kutentha kwakukulu. • Kuwongolera bwino kwa zinyalala. • Kugwirizana bwino ndi zisindikizo ndi mankhwala opangira mafuta (zotsukira).

Kuti atsatire kwathunthu muyezo wa SN, mafutawo ayeneranso kupereka zabwino kwambiri:

• Chitetezo pamakina otulutsa mpweya wamagalimoto • Chitetezo pamakina opangira ma turbocharging pamagalimoto • Kutsatira mafuta otengera Ethanol

Ngati mafuta amafuta akukwaniritsa zofunikira zonsezi, amatengedwa ngati SN ndipo alandila chivomerezo cha API. Kwa ogula, izi zikutanthauza kuti mafutawo ndi otsika mtengo, ogwira ntchito, amatsatira malamulo onse a boma ndi boma, amateteza chilengedwe, ndipo amakwaniritsa miyezo yonse yachitetezo. Izi ndizovuta kwambiri.

Chizindikiro cha API chovomerezeka

Mafuta akavomerezedwa kuti akwaniritse mulingo wa SN, amalandira chofanana ndi chisindikizo cha API. Otchedwa donut ndi API, amawoneka ngati donut chifukwa amatanthauzira miyezo yomwe mafuta amakumana nayo. Pakatikati mwa donut mupeza muyeso wa SAE. Kuti avomerezedwe kuti azitsatiridwa mokwanira, mafuta ayenera kukwaniritsa miyezo yamafuta a SAE. Ngati mafuta akwaniritsa zofunikira za SAE (Society of Automotive Engineers), amalandila kuwunika koyenera. Chifukwa chake mafuta ovomerezeka ngati mafuta a SAE 5W-30 awonetsa kuvomerezedwa pakati pa donati ya API. Zolemba zapakati zidzawerengedwa SAE 10W-30.

Mupeza mtundu wazinthu zamagalimoto pa mphete yakunja ya mphete ya API. Zoonadi, uku ndiko kukongola kwa dongosolo la API. Ndi chizindikiro chimodzi chovomerezeka, mupeza zambiri. Pankhaniyi, mphete yakunja ya API donut imanyamula zambiri za mtundu wa galimoto komanso chaka chopanga galimotoyo.

ID yagalimoto ndi S kapena C. S zikutanthauza kuti katunduyo ndi wagalimoto yamafuta. C amatanthauza kuti katunduyo ndi galimoto ya dizilo. Ikuwoneka kumanzere kwa chizindikiritso cha zilembo ziwiri. Kumanja mudzapeza chaka chachitsanzo kapena nthawi yachitsanzo. Dzina lachitsanzo lamakono ndi N. Chifukwa chake, mafuta a petroleum omwe amapambana API conformance ali ndi chizindikiritso SN cha galimoto yamakono ya petulo ndi CN ya galimoto yamakono ya dizilo.

Dziwani kuti mulingo wamba watsopano umatchedwa SN standard. Muyezo watsopano, womwe udapangidwa mu 2010, umagwira ntchito pamagalimoto opangidwa kuyambira 2010.

Kufunika kwa API Compliance

Monga kutsata kwa SAE, kutsata kwa API kumapatsa ogula chidaliro chowonjezera kuti mafuta a petroleum amakumana ndi mulingo wina wokhazikika. Kuyimitsidwa kumeneku kumatanthauza kuti ngati chinthu cholembedwa kuti 10W-30, chimakwaniritsa miyezo yamakayendedwe pamitundu yosiyanasiyana ya kutentha. Zowonadi, mafutawa adzakhala ngati mafuta a viscosity 30, kupereka chitetezo chimenecho kuchokera pafupifupi madigiri 35 mpaka 212. Muyezo wa API umakuuzani ngati chinthu ndi injini yamafuta kapena dizilo. Pomaliza, mulingo uwu umakuuzani kuti mafuta amafuta ndi omwewo ku New York, Los Angeles, Miami, kapena Charlotte.