| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system for coordinating supplied fluid pressure in accordance with the rotating speed of a motor for operating a positive displacement pump. <P>SOLUTION: The apparatus for changing the pressure supplied by a jet washer comprises the positive displacement pump to be operated by the AC energized single phase motor, a supply nozzle in a predetermined cross section, and an electronic device for controlling and coordinating the supplied voltage of the motor to change the rotating speed of the motor. The electronic device has at least one diode connected to a motor supplied potential phase conductor. <P>COPYRIGHT: (C)2004,JPO</p> |
