Title:
EXHAUST SYSTEM AND EXHAUST DEVICE CONTROL METHOD
Document Type and Number:
Japanese Patent JP2020101156
Kind Code:
A
Abstract:
To further reduce power consumption.SOLUTION: When vacuum pressure inside connection piping identified on the basis of a detection signal is stabilized within a preliminarily designated pressure range with a plurality of exhaust devices including variable exhaust devices operated by a control section (Steps 12 and 14), on the basis of the number of rotations of the active variable exhaust devices and the vacuum pressure inside the connection piping (Step 15), a determination is made as to whether or not the active variable exhaust devices exist in a poor exhaust performance state with an exhaust amount of gas from an exhaust object equal to or lower than a predetermined exhaust amount (Step 16) and, when the active variable exhaust device exists in the poor exhaust performance state, at least one active variable exhaust device is stopped in the poor exhaust performance state while maintaining operation of at least one exhaust device (Step 17).SELECTED DRAWING: Figure 2
Inventors:
YOSHIDA YOSUKE
MIYAZAWA SHUN
SHIBUSAWA FUYUKI
MIYAZAWA SHUN
SHIBUSAWA FUYUKI
Application Number:
JP2018241378A
Publication Date:
July 02, 2020
Filing Date:
December 25, 2018
Export Citation:
Assignee:
ORION MACHINERY CO LTD
International Classes:
F04B49/06; F04B37/16
Domestic Patent References:
| JP2015203348A | 2015-11-16 | |||
| JP2015203349A | 2015-11-16 | |||
| JP2008069674A | 2008-03-27 | |||
| JP2003139054A | 2003-05-14 | |||
| JP2003139055A | 2003-05-14 |
Foreign References:
| WO2017143410A1 | 2017-08-31 |
Attorney, Agent or Firm:
Shinji Sakai