Liquid pressurizing device
A liquid pressuring device comprises a plunger pump 1, a pressure sensor 23, and a pressure control part 25 which moves plungers 5A, 5B so as to make an actual delivery pressure value reach a predetermined threshold and, after the actual delivery pressure value reaches the threshold, controls the ac...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A liquid pressuring device comprises a plunger pump 1, a pressure sensor 23, and a pressure control part 25 which moves plungers 5A, 5B so as to make an actual delivery pressure value reach a predetermined threshold and, after the actual delivery pressure value reaches the threshold, controls the actual delivery pressure value so as to determine an optimum feed rate, and then maintains the optimum feed rate at constant, where in the pressure control part 25 comprises a proportional control element which, after the actual delivery pressure value reaches the threshold, proportionally controls the actual delivery pressure value while the plungers 5A, 5B first reach the forward ends thereof. |
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