Title:
GAS COMPRESSOR AND GAS COMPRESSOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/130303
Kind Code:
A1
Abstract:
To generate regenerative power by means of a gas compressor using gases discharged from the gas compressor and other apparatuses. Disclosed is a gas compressor having a compressor main body that generates a compressed gas by sucking a gas. The gas compressor has: a rotating electrical machine, which is an electric motor that drives the compressor main body by receiving power supply, and which is also a power generator that generates regenerative power by obtaining power from the compressor main body; an inverter that controls the rotation number of the rotating electrical machine by changing the frequency of the power supply; a converter that generates output power from the power thus generated; and a check valve that allows, on a discharge-side pipe of the compressor main body, circulation of compressed air from the compressor main body side to the compressor discharge side. When driving of the compressor main body is stopped, the compressor main body reversely rotates due to the fact that compressor air in the upstream of the check valve reversely flows, and the gas compressor generates power for generating the regenerative power.
Inventors:
YAMAMOTO KENTARO (JP)
TAKANO MASAHIKO (JP)
TAKANO MASAHIKO (JP)
Application Number:
PCT/JP2016/052224
Publication Date:
August 03, 2017
Filing Date:
January 27, 2016
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
F04B49/02
Foreign References:
| JP2007170186A | 2007-07-05 | |||
| JP2011094611A | 2011-05-12 | |||
| JPH04347335A | 1992-12-02 | |||
| JP2003120542A | 2003-04-23 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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