Title:
WORKING MACHINE, DEGRADATION DETECTION DEVICE FOR OXIDATION CATALYST, DEGRADATION DETECTION METHOD FOR OXIDATION CATALYST, AND DEGRADATION DETECTION PROGRAM FOR OXIDATION CATALYST
Document Type and Number:
WIPO Patent Application WO/2023/167202
Kind Code:
A1
Abstract:
Provided are: a working machine capable of preferably detecting degradation of an oxidation catalyst; a degradation detection device for an oxidation catalyst; a degradation detection method for an oxidation catalyst; and a degradation detection program for an oxidation catalyst. The working machine (20) comprises: a temperature detection device (2) for detecting the temperature between an oxidation catalyst (12) and a filter (11); and a controller (71). The controller (71) calculates an average value of the temperature detected by the temperature detection device (2), and calculates the degree of degradation of the oxidation catalyst (12) on the basis of the calculated average value, while the filter (11) is undergoing a regeneration process.
Inventors:
HAMAMOTO RYO
ENDO KAZUOMI
NAKAGAWA TOMOHIRO
ENDO KAZUOMI
NAKAGAWA TOMOHIRO
Application Number:
PCT/JP2023/007390
Publication Date:
September 07, 2023
Filing Date:
February 28, 2023
Export Citation:
Assignee:
KOBELCO CONSTR MACH CO LTD (JP)
International Classes:
F01N3/023; E02F9/00; F01N3/035; F01N3/20
Domestic Patent References:
| WO2010133276A1 | 2010-11-25 |
Foreign References:
| JP2015148182A | 2015-08-20 | |||
| JP2010031697A | 2010-02-12 | |||
| JP2015071991A | 2015-04-16 | |||
| JP2004353606A | 2004-12-16 | |||
| JP2013124631A | 2013-06-24 | |||
| JP2012036856A | 2012-02-23 |
Attorney, Agent or Firm:
KOTANI, Masataka et al. (JP)
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