| 摘要 |
PURPOSE:To lower pulsation by giving an output signal so as to make a pulse motor high speed rotation in each period from a pulse control part based on the information of a pressure memory part. CONSTITUTION:A pulse motor 1 rotates a cam shaft 13 to drive plungers 7, 8. The information of a pressure sensor 9 is sent to a memory part 4 to correct a driving pulse by a pulse control part 3. The pulse control part 3 makes the pulse motor 1 high speed rotation in a part where delivery pressure is liable to be lowered in each period, and the starting point and end point of the high speed rotation is determined by the pressure fluctuation in the previous period. Thereby, pulsation can be gradually reduced.
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