| 摘要 |
An variable output pump is disclosed. The variable output pump having a rotatable first shaft, a first pumping element mounted to the rotatable first shaft, and a coupling mechanism configured to couple the first pumping element to the first shaft for rotation therewith in a first mode, and decouple the first pumping element from the rotatable first shaft in a second mode. A method for varying the output of a fluid pump is also disclosed. The method including rotating a first pumping element and a second pumping element; and preventing rotation of the first pumping element in response to an increase in fluid pressure, while continuing to rotate the second pumping element.
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