| 摘要 |
<p>A valve assembly for controlling delivery and exhaust of pressurized air to and from an air spring. The valve assembly comprises a body having a pair of valve bores with a coaxially open end, and a port in communication with the valve bore. The port is adapted to receive an air connection with an air spring. An actuator shaft, having a first end and a second end, is disposed coaxially in the valve bore for reciprocal movement between an actuating position and a rest position, and is biased towards the rest position. A valve block fixes within the valve bore and has an internal end and an external end. A coaxial bore extends from the internal end to the external end and slidably receives the actuator shaft second end. A stop chamber is disposed between the external end and the internal end. The valve block has a seat on the external end at the coaxial bore. An air passage communicates with the port and the coaxial bore. A stop member mounts on the actuator shaft within the stop chamber so that the actuator shaft second end will be spaced within the coaxial bore inwardly from the seat when the actuator shaft is in the rest position. Movement of the actuator shaft relative to the valve body is limited to the distance the stop moves within the stop chamber.</p> |
