| 摘要 |
A vehicle pneumatic brake line coupling 100 has a housing 126, an inlet port 101 and an outlet port 102, formed along a longitudinal axis A-A. A filter 104 is provided in the housing 126, between the inlet port 101 and the outlet port 102, the filter 104 having inlet and outlet surfaces. The coupling has a filtering configuration in which the majority airflow passes through the filtration medium 104, and also has a bypass configuration in which a bypass airflow bypasses the inlet surface of the filtration medium above a threshold inlet pressure set by spring element 112 at the filter, allowing bypass of unfiltered air without entraining dirt from the filter downstream of the filter into the pneumatic braking system. The filter may be cleanable and the coupling may have quick release locking means. |
