The by-pass (relief) valve is an integral part of the lubrication system. By-pass valves are designed to allow oil flow to the engine components when the oil is cold, or if the filter becomes plugged. By-pass valves can be located in the lubricating system or in the lube filter.
Similarly, you may ask, what does an oil filter do for your car?
The oil filter helps remove contaminants from your car engine's oil that can accumulate over time as the oil keeps your engine clean. Clean motor oil is important because if the oil were left unfiltered for a period of time, it could become saturated with tiny, hard particles that can wear surfaces in your engine.
What is a full flow oil filter?
Full flow filters are the most common type, and receive all, or nearly all the oil pumped around the engine. They provide essential engine protection for maximum cold flow performance and filter life.
What is the function of an oil cooler bypass valve?
[ 5 7 ABSTRACT A spool-type bypass valve is provided for controlling the flow of oil either to a circuit including an oil cooler or to a circuit bypassing the oil cooler. It is conventional on vehicles today to provide many functions controlled by pressurized hydraulic fluid or oil.