The foot brake valve is the brake master cylinder that card friends often say, and it is the main control device in the air brake system. At present, the common brake valve is a dual-chamber brake valve with separate front and rear axle control.
When the vehicle is braking, the driver operates the brake pedal and is directly connected to the brake master cylinder. The stroke of the brake pedal is used as the input signal, and the control air pressure is used as the output signal to control the gas flow of the brake cylinder to determine the size of the braking force. A very important characteristic of the foot brake valve is the linear relationship between input and output.
In the design of some brake master cylinders, the ratio of output to input in the front section is relatively small and the ratio in the rear section is relatively large, so the driver will reflect that the effect of lightly stepping on the brake is not obvious, but heavy stepping is prone to lock-up. Of course, the characteristics of the air brake are determined by the overall system characteristics and are also related to the subsequent relay valves and sub-cylinders.
Zhejiang Juda Electromechanical Technology Co., Ltd. is a professional manufacturer of various automobile brake master cylinders, brake cylinders; clutch main cylinders, and sub-cylinders; clutch boosters, and power cylinders, spring brake air chambers, spare tire tappet assemblies, Manufacturers of stamping parts, stamping parts and various valves. For any product needs, please contact us.