What is the state of the lubricant in the transmission?
The function of lubricant.
The primary function of lubricant is, of course, “lubrication.” Automotive engines consist of numerous components, such as the rapidly rotating crankshaft and camshaft, the piston performing high-speed linear motion within the cylinder, and the intake and exhaust valves moving reciprocally in the valve guide. These components generate metal friction during operation, which can quickly wear down even the hardest metals. The basic role of lubricant is to form a reliable oil film on the friction surfaces to provide lubrication.
In addition, lubricant plays several other roles during its circulation through various parts of the engine. It dissipates heat to cool the components, reduces engine noise, prevents rust on metal surfaces, and provides a sealing function between the piston, piston rings, and cylinder wall. More importantly, lubricant washes away carbon deposits and other impurities from the cylinder and other parts, carrying them to the filter to perform a cleaning function.
what is the state of the lubricant in the transmission?
In simple terms, automotive lubricant continuously circulates and functions during vehicle operation, with each cycle mainly involving the following steps:
- The oil pan, located at the bottom of the engine, serves as a reservoir for storing lubricant. When the car is not running, the lubricant quietly gathers here. The oil pump acts as a transport mechanism, delivering lubricant to various engine components. Through this device, the lubricant gains a certain flow pressure, allowing it to flow into the various oil pipelines.
- The oil pipelines serve as the highways for the lubricant to flow to various parts, including the filter, oil outlet, main oil passage, and cylinder head oil passage. The lubricant circulates repeatedly through these pipelines, reaching all the parts that require lubrication.
- The oil strainer and filter are filtration devices that the lubricant passes through before reaching the parts for lubrication. They ensure that impurities, dust, and other contaminants do not adhere to engine components along with the lubricant, helping to prevent the formation of sludge and carbon deposits.
- Finally, the lubricant flows to engine components such as the main journal of the crankshaft, connecting rod journal, camshaft journal, camshaft, timing gears, pistons, and more. It forms a layer of oil film on the metal surfaces of these parts, preventing them from rubbing against each other. At the same time, it carries away heat to cool the engine and cleans sludge, metal particles, and impurities, ensuring the engine operates smoothly.
The process of lubrication is a complex one. Through the simple breakdown of the steps above, we can get a general understanding of the lubrication flow.
Precautions for using automotive lubricant oil:
