What is the movable guide rail assembly of the automotive oil pump
The movable guide rail assembly of the automotive oil pump is not a standard name for a combination of automotive parts. It may be a misspelling or a combination description of "oil pump assembly". The following is the analysis of the relevant components:
Composition of the oil pump assembly
The automotive oil pump assembly typically includes:
Youdaoplaceholder0 oil pump : responsible for establishing oil pressure and delivering fuel/engine oil
Youdaoplaceholder0 Filter screen/filter element : Filters impurities to ensure the cleanliness of the oil circuit
Youdaoplaceholder0 pipe : Connects the fuel tank to the engine and conveys fuel/engine oil
Common functional distinctions
The fuel system fuel pump assembly is responsible for pumping fuel from the fuel tank into the engine. After being filtered by the filter screen, it is distributed to the fuel injectors through the fuel rail and finally enters the cylinder for combustion.
The lubrication system the oil pump assembly pressurizes the engine oil and delivers it to all engine components. The filter screen filters impurities to ensure lubrication efficiency.
If specific component information (such as fuel pump model, oil pump structural parameters) is required, it is recommended to provide the vehicle brand and model for precise query.
The working principle of the movable guide rail assembly of the automotive oil pump is that the camshaft drives the gear to rotate the transmission gear of the oil pump, thereby causing the driving gear and the driven gear to move relatively, and sending the engine oil from the oil inlet chamber along the tooth gap and the pump wall to the oil outlet chamber.
Working principle
When the engine starts, the drive gear on the camshaft will directly drive the transmission gear of the engine oil pump to rotate. The rotation of the driving gear will drive the driven gear to rotate in the opposite direction, forming a cyclic motion. Engine oil is drawn into the oil inlet chamber and then pushed through the tooth gap and the pump wall to the oil outlet chamber, and finally delivered to all engine components for lubrication.
The function of the guide rail
The guide rail mainly serves to guide and tension, ensuring that the timing chain remains stable during movement, preventing slippage, and at the same time offsetting the natural stretching of the chain.
Faults in the movable guide rail assembly of automotive oil pumps are usually manifested as:
Difficulty in starting
When starting, multiple ignitions are required, accompanied by a "putt-putt-sound". The carbon brushes inside the oil pump wear out, resulting in insufficient rotational speed and the fuel pressure dropping below 2Bar.
Weak acceleration
When accelerating rapidly, the engine speed increases slowly, and the 0-100km/h acceleration time is prolonged. Due to insufficient fuel supply from the fuel pump, the power drops sharply.
The idle speed is unstable
The engine suddenly stalled while driving, with the engine speed fluctuating irregularly between 600 and 900rpm. The intermittent failure of the fuel pump caused a fuel supply interruption.
Abnormal noise
When starting cold, a "sizzling" sound of metal friction can be heard, and the pump core bearing makes abnormal noises due to dry grinding due to lack of oil.
Fuel consumption surges
The fuel consumption per 100 kilometers suddenly increased by 1-2 liters. The actual fuel injection volume did not match the value calculated by the ECU, and the fuel consumption abnormally rose.
Cause of malfunction
Youdaoplaceholder0 Internal wear : Long-term use leads to an increase in the gap between the plunger and the plunger sleeve, causing fuel leakage.
Youdaoplaceholder0 clogging problem : The filter has not been replaced for a long time or impurities in the fuel clog the oil passage.
Youdaoplaceholder0 Improper assembly : deviation in the fit of components or severe wear of the pump cover.
Youdaoplaceholder0 Poor quality of engine oil : Inferior engine oil accelerates internal wear and insufficient oil supply pressure.
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