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Title:
Fluid pressure increase-and-decrease machine of pressure
Document Type and Number:
Japanese Patent JP5972625
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fluid pressure increasing/decreasing machine that can continuously supply an output pressure having a pressure higher than an input pressure and a pressure lower than the input pressure.SOLUTION: An oil pressure increasing/decreasing machine 100 capable of continuously supplying an output pressure includes: a control device 5 that switchably selects at least one input pressure chamber to which an input pressure is applied and at least one output pressure chamber in which an output pressure including a pressure higher than the input pressure and a pressure lower than the input pressure is generated, from a head side pressure chamber 1H and a rod side pressure chamber 1R of a hydraulic cylinder 1, and a head side pressure chamber 2H and a rod side pressure chamber 2R of a hydraulic cylinder 2; and flow control valves 6H, 6R, 7H, 7R that connect the input pressure chamber with a supply source SR, and connect the output pressure chamber with a supply destination SD.

Inventors:
Koichiro Tsukane
Application Number:
JP2012068369A
Publication Date:
August 17, 2016
Filing Date:
March 23, 2012
Export Citation:
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Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
F04B5/00; F04B1/18; F04B9/08; F15B3/00
Domestic Patent References:
JP5024480Y2
JP3628365B2
JP4659310B2
JP9126117A
JP61149781U
JP8151976A
JP2008223751A
JP200064949A
JP63230967A
Attorney, Agent or Firm:
Tadahiko Ito