Which property is essential for materials used in piston rings of diesel engines?
High wear resistance
Piston rings slide continuously against the cylinder wall at high speed, temperature, and pressure.
This constant rubbing would quickly wear away a soft material, opening up gaps that let gases blow by and oil pass up.
The ring material must therefore have high wear resistance so it keeps a good seal over a long service life.
Low wear resistance would fail rapidly, and corrosion resistance, though useful, is not the primary requirement here.
Hence, the answer is high wear resistance.
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Important Questions from Constructional Details
In an overhead valve system, the cylinder head supports the_________.
The centre part of a typical universal joint is called the__________.
Which part of the piston is subjected to high pressure and temperature?
A _______ is mounted on the rear end of a crankshaft.
- Connecting rods are made of:
