发明名称 |
FLOW CONTROL DEVICE FOR A LIQUID DISPENSING APPARATUS |
摘要 |
An improved liquid dispensing apparatus having a micro-adjustment of the opening travel of a needle valve of the apparatus. This micro-adjustment comprises a sleeve-stop member which is axially movable but non-rotatable in the body of the apparatus. One end of the sleeve-stop member forms an end-stop to limit opening movement of the needle valve away from the valve seat. Screw threads of a first pitch are formed on an external portion of the sleeve-stop member and internal screw threads of a second pitch different from the first pitch are formed on a portion of the apparatus body. A generally tubular adjustment screw element is engaged with both the internal scew threads of the body bore and the external screw threads of the sleeve-stop member so that rotation of the adjustment screw element causes differential axial movement of the sleeve-stop member for fine adjustment of the maximum opening needle valve travel. |
申请公布号 |
AU3974085(A) |
申请公布日期 |
1985.10.03 |
申请号 |
AU19850039740 |
申请日期 |
1985.03.12 |
申请人 |
NORDSON CORP. |
发明人 |
WILLIAM A. LEWIS;ROBERT G. BAKER |
分类号 |
F16K1/54;B05B1/30;B05B1/32;B05C5/02;F16K31/122 |
主分类号 |
F16K1/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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