Can someone with knowledge on fluid dynamics educate me on this? Let's say the size of the mouth on an oil pickup was reduced by about 50% due to an obstruction, the oil pump's rotation is usually linked to the rotation of the crankshaft, with one revolution of the oil pump's internals, how does it cope with the obstruction?
It can't create air inside the pump if there's no air being sucked in, so what's to replace the 50% loss in the mouth? Does the pump just work harder, power in the engine is lost and the flow through the remaining 50% increases in pressure or something? If the obstruction was 100% and the engine was forcing the pump to pump, this should cause a vacuum and something would have to give right?
Basically how big of a deal is it if the opening on an oil pickup is obstructed? I'm referring to the oil pickup design where there's a sheet metal casing with an opening and a strainer inside the sheet metal casing, not the kind where the strainer is fully exposed.
It can't create air inside the pump if there's no air being sucked in, so what's to replace the 50% loss in the mouth? Does the pump just work harder, power in the engine is lost and the flow through the remaining 50% increases in pressure or something? If the obstruction was 100% and the engine was forcing the pump to pump, this should cause a vacuum and something would have to give right?
Basically how big of a deal is it if the opening on an oil pickup is obstructed? I'm referring to the oil pickup design where there's a sheet metal casing with an opening and a strainer inside the sheet metal casing, not the kind where the strainer is fully exposed.