| 摘要 |
The spring (1.7) provides braking power when the vehicle stops for parking or emergency, the spring pressurized room (1.3) in which the compressed air necessary for caging the spring (1.7) accumulated, the piston (1.1) compresses the spring (1.7) for caging by means of the compressed air in the spring pressurized room (1.3), the piston pipe (1.2) transfers the braking power to the push rod (1.18) generated by the spring (1.7), the service room (1.5) in which the compressed air necessary for the service brake is accumulated, the air transfer holes (1.8) and the air channel (1.14) ensures the air transfer between the service room (1.5) and the spring compression area (1.6), the push rod (1.18) transfers the braking power generated by the brake chamber, the diaphragm (1.19) transfers the braking power generated by the pressurized air accumulated in the service room (1.5) to the push rod (1.18) and the return spring (1.20) helps the diaphragm (1.19) to reform back and characterized by a single rimmed housing (2.1) between the service room (1.5) and the spring pressurized room (1.3) which is combined together with the service chamber (1.4), the diaphragm (1.19) and the spring chamber (2.2) by a clamp (2.3), and has bearing center for the piston pipe (1.2). |
