ʻO ka hoʻokaʻawale ʻana o nā ʻenekini kaʻa i kēia mau ʻano:

1. E like me ke ʻano o ka mana, hiki ke hoʻokaʻawale ʻia nā ʻenekini kaʻa i nā ʻenekini diesel, nā mīkini ʻaila, nā kaʻa uila, a me nā hybrids.

2. E like me ka hoʻokaʻawale ʻana o ka ʻōnaehana intake, hiki ke hoʻokaʻawale ʻia i ʻehā mau ʻano: naturally aspirated, turbocharged, mechanical supercharged a dual supercharged.

3. E like me ke ʻano o ka neʻe ʻana o ka piston, hiki ke hoʻokaʻawale ʻia i ka reciprocating piston internal combustion engine a me rotary piston engine.4. E like me ke ʻano o ka hoʻonohonoho cylinder, aia nā ʻenekini i loko o ka laina, nā ʻenekini V-type, nā ʻenekini W-type a me nā ʻenekini kūʻē ākea.

5. E like me ka helu o nā cylinders, hiki ke hoʻokaʻawale ʻia i hoʻokahi-cylinder engine a me multi-cylinder engine. Hoʻohana nui nā kaʻa o kēia wā i nā ʻenekini ʻekolu pahu, ʻehā pahu, ʻeono pahu, a me ʻewalu pahu.

6. E like me nā ʻano hoʻoluʻu like ʻole, hiki ke hoʻokaʻawale ʻia i loko o ka ʻenekini hoʻoheheʻe wai a me ka ʻenekini ea.

7. E like me ka helu o nā hahau, hiki ke hoʻokaʻawale ʻia i ʻehā-stroke engine combustion engine a me ʻelua-stroke internal combustion engine.

8. E like me ka hoʻokaʻawale ʻana o ke ʻano hoʻolako wahie, ʻenekini carburetor, ʻenekini uila uila a me ka mīkini hoʻokele pololei i ka cylinder.