How should I lubricate the chain of a car engine?

At present, engine timing chain lubricating oil circuit structure comprises engine block and oil passage, cylinder block front end face is provided with fuel injector, engine cylinder body is provided with short oil channel, main bearing lubricating oil passage and engine main oil passage, described fuel injector is positioned at the top of timing chain, fuel injector communicates with main bearing lubricating oil passage through short oil channel, and main bearing lubricating oil passage other end communicates with engine main oil channel. The distance between the fuel injector and the timing chain is close, the lubricating oil can be directly injected into the timing chain, the lubrication is simple and reliable, the lubricating oil channel connected to the fuel injector is short, the distance between the lubricating oil channel and the main oil channel is close, the oil pressure loss is less, and the lubricating oil with higher oil pressure can be obtained, which ensures that the timing chain is fully and stably cooled and lubricated in time during the working process.

Wet and dry are the difference between car storage oil, which has nothing to do with how the cylinder is lubricated, and the cylinder lubrication does not rely on the crankshaft splash oil, if the crankshaft can touch the oil, it is called adding more oil. Under each cylinder, the organic oil injector nozzle continues to spray the engine oil to the cylinder wall, and the sprayed oil will be scraped off by the piston ring when the piston goes down and returns to the oil tank, and the piston goes up, the cylinder inner wall is exposed, and it will be sprayed with oil. The crankshaft connecting rod and everything are taken care of, and the fuel injector relies on the oil pump to provide pressure.

Regardless of wet or dry, the crankshaft is connected to the mechanical oil pump, after the oil pump pumps out the oil, it is pumped along the reserved oil channel in the engine body to the cylinder sidewall and the top of the cylinder to lubricate the valve ejector rod, and the other part follows the crankshaft and the cylinder connection part, enters the piston ring at the top of the piston through the hollow screw oil circuit, and lubricates with the movement of the cylinder piston.

In order to ensure the normal operation of the engine, it is necessary to lubricate the surface of the relative moving parts in the engine, that is, to cover the friction surface with a layer of lubricant, so that a thin oil film is separated between the metal surfaces, so as to reduce friction resistance, reduce power loss, reduce wear, and prolong the service life of the engine.

Regardless of dry or wet oil pan, there is a place to store oil, the so-called dry type, is to store the oil in the oil pot, mostly used in large displacement performance cars, our daily low-temperature family car is mainly wet oil pan, that is: the oil pan and the crankcase communicate and are at the lowest point of the engine, the dry oil pan belongs to the spray type, and the wet oil pan belongs to the splash type: by the crankshaft rotary splash lubrication.

For city cars, the engine is often exposed to wear and tear due to frequent stop-and-off during peak hours, and experts recommend that synthetic lubricants such as Shell Ultra Helix can be used for city cars. This fully synthetic lubricant has small molecular particles, a smooth structure and a fast flow rate, and is able to reach the pistons, cylinder walls and camshafts in the shortest possible time where lubrication, cooling and protection are required.

When choosing a lubricant, you should also pay attention to the change of seasons. In summer, consumers in most parts of the country can choose 5w-40 or 10w-40 lubricating oil, and can appropriately shorten the oil change interval according to the situation, grease with higher dropping point for wheel bearings, and thick gear oil for transmission and differential, and brake fluid with higher boiling point.

Automobile engine timing chain needs to be lubricated, mainly by the camshaft, crankshaft, tensioner, etc. (depending on the model) rotation and oil provided by the oil channel for splash lubrication.

In the case of trucks, many owners consider reliable brands of semi-synthetic or generic mineral oil to be sufficient, but if the road conditions are poor or the owner is looking for a better driving experience or wants to extend the life of the engine, then the lubricant level can be increased accordingly.

The first is the common lubrication method we use for the chain of household machinery, which is to use an oil pot or oil brush to brush the chain regularly.

The second is to use the oil cup to drip oil through the oil pipe to the gap between the chain plates for the mechanical chain chain that is inconvenient to brush with tools.

The third is oil bath lubrication or splash lubrication, which uses a sealed transmission box to immerse part of the chain in the oil, and the back is to throw the oil pan oil.

The fourth is to use the pressure of the oil pump for oil injection lubrication, which is the continuous supply of oil to the chain by the oil pump, so that the cycle meets the requirements of the lubricant for the chain drive.