| 摘要 |
An air dryer and reservoir assembly for providing compressed air from an air compressor ( 20 ) on a heavy motor vehicle which includes an air dryer ( 14 ) connected to receive compressed air from the air compressor ( 20 ) and a secondary reservoir ( 12 ), including an integral purge volume ( 34 ), for storing compressed air which passes through the air dryer ( 14 ), with the air dryer ( 14 ) and the secondary reservoir ( 12 ) being securely attached to a housing ( 16 ) to form an air dryer reservoir module ( 10 ). A primary reservoir ( 18 ) for storing compressed air from the air dryer ( 14 ) is located remote from the air dryer reservoir module ( 10 ). A pressure equalizing mechanism ( 57 ) is disposed between the primary reservoir ( 18 ) and the secondary reservoir ( 12 ) for keeping pressure in the two reservoirs ( 12,18 ) equal. Components located within the housing ( 16 ) control air flow between the air dryer ( 14 ) and the primary and secondary reservoirs ( 18,12 ) and also monitor the pneumatic brake system circuits fed by the primary and secondary reservoirs ( 18,12 ).
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