What Kind of Pumps Are In A Car?

All pumps on a vehicle are what provides power to the vehicle. The substances needed in the car cannot be actively moved, which requires pumps to realize their circulation in the car. Commonly used pumps in the car include oil pumps, gasoline pumps, power steering pumps, brake pumps, clutch pumps, water pumps, etc.

5 Main types of pump

The function of the engine water pump is to pressurize the coolant to ensure its circulation in the coolant. Generally speaking, it is to let the water circulate continuously in the radiator engine block to take away the heat, so as to ensure that the engine is not overheated.

The working principle of the water pump: the engine drives the bearing and impeller of the water pump to rotate through the pulley, and the coolant in the water pump rotates together under the drive of the impeller and is thrown to the edge of the water pump shell under the action of centrifugal force, and a certain pressure is generated at the same time, and then from the outlet Sink or hose run out. At the center of the impeller, as the coolant is thrown out and the pressure drops, the coolant in the water tank is sucked into the impeller through the water pipe under the pressure difference between the inlet of the water pump and the center of the impeller to realize the reciprocating circulation of the coolant.

Fuel pump

The function of the fuel pump is to suck gasoline out of the fuel tank and press it into the float chamber of the carburetor through the pipeline and gasoline filter. Thanks to the petrol pump, the petrol tank can be placed in the rear of the car away from the engine and within reach. According to different driving methods, gasoline pumps can be divided into mechanically driven diaphragm types and electric-driven types.

Oil pump

The oil pump of the automobile can continuously send a certain amount of lubricating oil from the oil pan to the surface of each part for lubrication after being pressurized by the stamp book, so as to maintain the circulation of the lubricating oil in the lubrication system. After the engine is started, the oil pump starts to run due to the driving effect of the crankshaft, and the oil pump is firstly filtered by the oil pump filter to deliver the oil to the surfaces that need to be used; the pressure of the oil is detected by the pressure sensor.

Brake master cylinder

It is the main control device in the automobile braking system, and it realizes sensitive follow-up control in the braking process and release process of the dual-circuit main braking system. Working principle: When the driver steps on the foot pedal, one end of the pull arm presses down the balance spring by stretching the pull rod so that the balance arm moves down. First, the exhaust valve is closed, and the intake valve is opened. At this time, the compressed air in the air storage tank passes through The intake valve and is filled into the brake air chamber, and the diaphragm of the air chamber is pushed to rotate the brake cam to achieve wheel braking, thereby achieving the braking effect.

Clutch master cylinder

The information about the pedal stroke is collected, and the clutch is separated through the action of the booster. The working principle of the clutch master cylinder is: when the clutch pedal is stepped on, the push rod pushes the master cylinder piston to increase the oil pressure, enters the slave cylinder through the hose, forces the slave cylinder pull rod to push the release fork, pushes the release bearing forward, and releases the clutch When the pedal is pressed, the hydraulic pressure is released, and the release fork gradually returns to its original position under the action of the return spring so that the clutch is in the engaged state. The fault phenomenon after the clutch master cylinder is damaged is that it is difficult to engage and shift gears, and it is impossible to accelerate the driving. It needs to be repaired and replaced with new parts in time.