TORQUE ESTIMATING DEVICE OF GAS COMPRESSOR

Title:

TORQUE ESTIMATING DEVICE OF GAS COMPRESSOR

Document Type and Number:

WIPO Patent Application WO/2016/093045

Kind Code:

A1

Abstract:

The invention improves the accuracy with which torque during startup is estimated, in a torque estimating device of a gas compressor. A torque estimating device (100) of a gas compressor (200) is provided with: a reference torque characteristic storage unit (20) which stores a reference torque characteristic, as a torque characteristic of the gas compressor (200) when the gas compressor (200) is performing a specific operation; a torque setting unit (10) which, on the basis of the reference torque characteristic stored in the reference torque characteristic storage unit (20), sets a torque corresponding to an input speed of rotation of the gas compressor (200), and the pressure of refrigerant discharged from the gas compressor (200); and a torque correcting unit which sets the torque at startup of the gas compressor (200), from among torques set by means of the torque setting unit (10), by correcting the torque set by the torque setting unit (10), in accordance with the speed of rotation and the elapsed time since startup.

Inventors:

SATOU KEITA (JP)

Application Number:

PCT/JP2015/082797

Publication Date:

June 16, 2016

Filing Date:

November 20, 2015

Export Citation:

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Assignee:

CALSONIC KANSEI CORP (JP)

International Classes:

F04B35/00; B60H1/32

Foreign References:

JP3921430B2	2007-05-30
JP2004211663A	2004-07-29
JP2003120545A	2003-04-23
JP2009107419A	2009-05-21
US20100106362A1	2010-04-29