What is the purpose of a clutch booster?

[Aliyah]

Clutch boosters are used in vehicles with hydraulically operated clutch mechanisms. When operating the clutch to engage or disengage, the assembly helps increase the output force for easier control. The relevant introduction of the clutch booster is as follows: Introduction to the use of clutch boosters: To minimize the force applied to the clutch pedal without increasing the pedal travel due to an excessively large transmission ratio, medium and heavy-duty vehicles and some passenger cars are equipped with various assistance devices based on mechanical or hydraulic operating mechanisms. When the clutch pedal is depressed, hydraulic fluid forms a certain pressure in the clutch master cylinder and then enters the clutch booster. At this point, the hydraulic fluid performs two steps of operation in the booster. Introduction to the dual-path operation of the clutch booster: One path first enters the hydraulic system of the clutch booster, where the hydraulic fluid acts on the hydraulic piston, pushing the B rod forward. The left end of the hydraulic piston uses a D-shaped rubber ring to maintain the sealing of the hydraulic fluid, and there are two hydraulic piston cups on the hydraulic piston to prevent oil leakage and ensure sealing. The other path flows to the control valve system of the clutch booster. While the hydraulic system is operating, the hydraulic fluid pushes the relay valve. There are two cups on the relay valve piston, which not only withstand the oil pressure but also serve a sealing function. The relay valve piston moves left, overcoming the tension of the diaphragm return spring and the lift valve spring.