| 摘要 |
<p>1,119,665. Reciprocating pumps and compressors. MASCHINENFABRIK BURCKHARDT A. G. July 30, 1965 [Aug. 3, 1964], No. 32757/65. Headings F1A and F1N. A compressor or pump valve assembly comprises an annular inlet valve 5 co-axil with an outlet valve 16, discharge taking place through a tube 1 which secures the inlet valve abutment 3 to the valve block 2. Inlet and outlet passages 30, 17 respectively connect with annular inlet and discharge passage 7, 8 in the housing 9. The tube 1 may have a diffuser section an external groove or be ribbed.</p> |
