| 摘要 |
<p>Prior air dryers required a bed of desiccant material to dry the air stream. The present invention provides an air dryer comprising: i) a hollow tank (12) having first and second ends (16); ii) an air inlet (1) into the tank adjacent the first end thereof; iii) an air outlet (2) adjacent the second end thereof; iv) a non-porous gravel bed filling (20) the section of the tank between the inlet and outlet, having particles 3/8 inch in diameter or less; v) a compression plate (9) extending across the tank in contact with the gravel bed (20); vi) means (8, 10) for biasing the compression plate against the gravel bed; and vii) drainage (58, 62) means for drainage water from the tank.</p> |
