What are the advantages of the aluminum pistons with a graphite skirt? I- They have a lightweight construction. II- They have a graphite skirt, in...
What are the advantages of the aluminum pistons with a graphite skirt?
I- They have a lightweight construction.
II- They have a graphite skirt, in a cut version, and bearings displaced inward to the pin.
III- This allows for the geometry of a box, which allows for a shorter and lighter pin.
IV- The piston head has the combustion chamber integrated.
a) I and II are correct.
b) II and III are correct.
c) I, II, III, and IV are correct.
d) Only IV is correct.
I- They have a lightweight construction.
II- They have a graphite skirt, in a cut version, and bearings displaced inward to the pin.
III- This allows for the geometry of a box, which allows for a shorter and lighter pin.
IV- The piston head has the combustion chamber integrated.
a) I and II are correct.
b) II and III are correct.
c) I, II, III, and IV are correct.
d) Only IV is correct.
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💡 1 Resposta
Ed 
A alternativa correta é a letra "b) II e III estão corretas". Os pistões de alumínio com saia de grafite têm a vantagem de ter uma construção leve e a saia de grafite permite uma geometria de caixa, o que permite um pino mais curto e leve. Além disso, os rolamentos são deslocados para dentro do pino. A afirmação IV está incorreta, pois o pistão não tem a câmara de combustão integrada.
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