Question

Blow by losses depend on the outlet pressure and compression ratio.

(a) True

(b) False

I got this question in unit test.

I would like to ask this question from Engine Friction topic in portion Engine Friction and Lubrication of IC Engine

Answer 1

The correct answer is:

(b) False

Blowby losses primarily depend on factors like the cylinder pressure, piston ring condition, and the compression ratio, but not directly on the outlet pressure. Higher compression ratios and cylinder pressures increase the likelihood of combustion gases leaking past the piston rings into the crankcase, contributing to blowby losses.