Title:
FLUID MACHINE AND DRIVE METHOD OF FLUID MACHINE
Document Type and Number:
Japanese Patent JP2022112899
Kind Code:
A
Abstract:
To provide a fluid machine which can prevent pressure pulsation and torque pulsation from being excessive, and a drive method of the fluid machine.SOLUTION: A fluid machine comprises: a plurality of cylinders; a valve drive unit for driving a plurality of low-pressure valves which communicate with and block the communication with working chambers of the plurality of cylinders, and a plurality of high-pressure valves which communicate with and block the communication with the working chambers and a high-pressure port; and a control part for controlling the drive of the plurality of low-pressure valves and the high-pressure valves so that at least one or more cylinders out of the plurality of cylinders perform either of pumping and motoring as active states, and at least two or more cylinders out of the plurality of cylinders perform the other of the pumping and the motoring as the active states, and the cylinder which does not perform any of the pumping and the motoring out of the plurality of cylinders is brought into an inactive state.SELECTED DRAWING: Figure 4
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Inventors:
KITAMOTO YUSUKE
Application Number:
JP2021008920A
Publication Date:
August 03, 2022
Filing Date:
January 22, 2021
Export Citation:
Assignee:
ISUZU MOTORS LTD
International Classes:
F04B1/063; F03C1/053; F04B1/0452; F04B49/10
Attorney, Agent or Firm:
Washeda International Patent Office