| 摘要 |
AN ANNULAR GAP FORMED BY A TAPER NEEDLE VALVE PORTION AND A METERING HOLE IS UNIFORMLY AND ACCURATELY FORMED BY INCREASING AN ACCURACY OF CONCENTRICITY BETWEEN A FLUID ADJUSTING SCREW AND A SCREW HOLE GUIDING THE FLUID ADJUSTING SCREW, WHEREBY IT IS POSSIBLE TO ACHIEVE AN IMPROVEMENT OF AN ACCURACY AND A UNIFORMITY IN CONTROLLING A FLUID. A LARGE DIAMETER GUIDE CYLINDER PORTION (5) AND A SMALL DIAMETER GUIDE CYLINDER PORTION (6) ARE CONCENTRICALLY FORMED FROM A MALE SCREW PORTION (3) OF A FLUID ADJUSTING SCREW (P) TOWARD A TAPER NEEDLE VALVE PORTION (4). A FEMALE SCREW PORTION (10), A LARGE DIAMETER GUIDE HOLE (11), A SMALL DIAMETER GUIDE HOLE (12) AND A METERING HOLE (13) ARE CONCENTRICALLY PIERCED IN A FLUID CONTROLLER (1) INWARD FROM AN OUTER END. THE MALE SCREW PORTION (3) OF THE FLUID ADJUSTING SCREW (P) IS ENGAGED WITH THE FEMALE SCREW PORTION (10), THE LARGE DIAMETER GUIDE CYLINDER PORTION (5) IS SUPPORTED BY THE LARGE DIAMETER GUIDE HOLE (11) ALONG A GUIDE LENGTH (A), THE SMALL DIAMETER GUIDE CYLINDER PORTION (6) IS SUPPORTED BY THE SMALL DIAMETER GUIDE HOLE (12) ALONG A GUIDE LENGTH (8), AND THE TAPER NEEDLE VALVE PORTION (4) IS INSERTED INTO AND ARRANGED WITHIN THE METERING HOLE (13).(FIG 1)
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