Oil Pump 11301-75021 For Coaster Tacoma 3RZ

Product Name: oil pump

OEM No.: 11301-75021

Fitment Type: oil pump

For TOYOTA 4RUNNER/ LAND CRUISER /PRADO/HILUX/3RZ

Q1: The working principle of an automotive engine oil pump is to generate pressure by rotating a set of gears or lobes, which in turn forces the oil to be pumped through the engine lubrication system.

A: The working principle of the automotive engine oil pump is to generate pressure through driving, sucking oil from the low-pressure area (oil sump) into the pump, then increasing the pressure through the outlet valve in the high-pressure pump body, and finally delivering the high-pressure oil to various lubrication points of the engine. The specific steps are as follows:

1. Oil suction stage: Negative pressure generated inside the engine oil pump sucks oil from the low-pressure area into the pump body.

2. Oil pressure stage: The outlet valve inside the pump body closes, and the piston moves upwards, compressing the oil to generate high pressure.

3. Oil delivery stage: When the piston descends, the outlet valve opens and the high-pressure oil flows into the engine lubrication system through the valve, supplying various lubrication points.

The working principle of the engine oil pump mainly relies on the reciprocating motion of the piston, controls pressure changes through the outlet valve in the pump body, and utilizes the power of the engine to drive the up and down motion of the piston. This ensures that all parts of the engine receive sufficient oil supply to ensure the normal operation of the engine.

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