The influence of Clutch Master Cylinders size on hydraulic system stability

1. Working mechanism of hydraulic system
The hydraulic clutch system converts mechanical input force into hydraulic pressure through Clutch Master Cylinders, which is then transmitted to the clutch slave cylinder (Clutch Slave Cylinder) through pipelines. In this process, the size of Clutch Master Cylinders is crucial because it determines the generation and transmission efficiency of hydraulic pressure in the system.

2. Relationship between size and hydraulic pressure
The size of Clutch Master Cylinders, especially the diameter of the piston, directly affects the generation of hydraulic pressure:

Small master cylinder (such as 15.88 mm): Due to its smaller piston diameter, a small master cylinder will generate higher hydraulic pressure when the driver applies the same pedal force. This can provide more sensitive clutch operation for light vehicles, but if the pressure is too high, it may cause unstable hydraulic pressure in the system, thereby increasing wear on system components.

Large master cylinder (such as 38.10 mm): In contrast, large master cylinders generate lower hydraulic pressure and are more suitable for heavy vehicles that require greater clutch operating force. This design helps maintain the stability of the hydraulic system because it is easier to avoid excessive pressure fluctuations when the pressure is low.

3. Importance of stability
The stability of the hydraulic system is critical to the smooth operation of the clutch. If the pressure in the hydraulic system fluctuates greatly, it will cause unstable clutch operation, which is manifested as the clutch cannot be fully disengaged, the engagement is not smooth, or the clutch pedal feedback is inconsistent.

CHENKAI's Clutch Master Cylinders use a variety of materials, such as cast iron, aluminum alloy, and PA66+GF glass fiber reinforced polyamide 66, which can provide durability while maintaining strength.

4. Importance of size matching
The size of the Clutch Master Cylinder must be precisely matched with the clutch slave cylinder and the entire hydraulic system. If the master cylinder is too small, the hydraulic pressure generated by the system may be too high, resulting in overly sensitive operation, and even possible failures such as hydraulic oil leakage, which will ultimately affect the long-term stability of the system.

In order to ensure the stability of the hydraulic system, it is crucial to select the right master cylinder size. For example, passenger cars usually require a smaller master cylinder to achieve a light operating feel; while commercial vehicles tend to use a large master cylinder to provide sufficient operating force and stability.

5. Ways to improve the stability of the hydraulic system
To ensure the long-term stability of the clutch hydraulic system, in addition to selecting the right size of Clutch Master Cylinders, you should also pay attention to the following aspects:

Choice of hydraulic oil: Using hydraulic oil that meets the specifications can effectively reduce the internal friction of the system, avoid excessive pressure fluctuations, and thus improve the stability of the system.

Regular inspection and maintenance: Regularly check the working status of the Clutch Master Cylinders and slave cylinders to ensure that there is no leakage in the hydraulic pipeline, and replace the hydraulic oil in time to maintain the normal operation of the system.

High-quality materials: CHENKAI's PA66+GF glass fiber reinforced material can effectively improve the stability of the Clutch Master Cylinders and extend the service life of the system due to its wear resistance and high temperature resistance.