The engine drive type compressor provided with the regeneration method of the exhaust gas aftertreatment apparatus in an engine drive type compressor, and the aftertreatment apparatus

Japanese Patent JP6212650

B2

Provided is a forced-regeneration treatment method for an exhaust-gas aftertreatment device (DPF) and an associated engine-driven compressor. When the amount of particulate matter (PM) deposited in a filter element of a DPF reaches a predetermined amount and a forced-regeneration start command is input, a capacity controlling means of the engine-driven compressor is disabled to close an intake valve and to open the discharge side of a compressor main unit to atmosphere, thereby causing the compressor main unit to achieve a low-load state. The operation mode of the engine is switched to a predetermined forced-regeneration mode to operate the engine at a predetermined speed and to increase the temperature of the gas. The temperature inside the DPF is increased to reach a temperature at which an oxidative catalyst is activated and to a temperature lower than the self-combustion temperature of the PM, thereby forcibly burning the PM.

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Hayakawa

JP2016546239A

October 11, 2017

September 03, 2014

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Hokuetsu Industry Co., Ltd.

F01N3/035; F01N3/023; F01N3/033; F04B35/00; F04B49/00; F04B49/06

JP2012097681A
JP2011112004A
JP2010261340A
JP2005241219A

Kokura Patent Office

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