Originally Posted By: Pontual
And you cant separate it from flow, since given the same clearance a bigger pressure translate, to bigger flow. Just blow a straw to see. The harder the pressure more liquid transported in a given time.
Am I wrong?
sorry, you edited while I was posting.
Bearings take oil from the supply galleries, in sufficient quantity to make up for the side leakage that occurs.
The fact that the oil pump supplies more oil than they need is shown by the presence of oil pressure...pump supplies more volume than they need, and the backpressure rises.
It's not pushing more oil through like volume through a straw, the bearings take only what they need.
This pic was lifted from a paper where they separated a particular bearing from the oil galleries, and provided a constant supply pressure through a measuring device.
The HTHS changed the amount of oil that the bearing drew from the galleries all other things being equal.
The inverse of the experiment, and CATERHAM has proved it in his engine is that if reversed, the lower HTHS provides lower oil pressure than higher HTHS.