| 摘要 |
PROBLEM TO BE SOLVED: To provide a paint pump device, in which a fixed quantity of paint flows in a feedback circuit when paint fluid pressure is changed. SOLUTION: The feedback circuit is connected to an inlet of a diaphragm pump from an outlet of the diaphragm pump force-feeding the paint to a print head of a gun for marking of a print marker, and a constant flow valve is disposed to the feedback circuit so that the fixed quantity of paint flows regardless of paint pressure. COPYRIGHT: (C)2003,JPO |
