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Patent Searching and Data


Title:
EXHAUST PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/167520
Kind Code:
A1
Abstract:
This exhaust purification system is provided with: a pump that is disposed in an exhaust-side purge passage, and that supplies, to a catalyst, air or purge gas purged from a canister; a three-way valve that is disposed on the upstream side from the pump in the exhaust-side purge passage, and that switches the state of the exhaust-side purge passage between a communicating state in which the pump is in communication with the canister, and an atmosphere opening state in which the pump is in communication with the atmosphere; a flow amount control valve that is disposed on the downstream side from the pump in the exhaust-side purge passage and that controls the flow amount of air to be supplied to the catalyst; and a control unit that, when a request to regenerate the catalyst is issued, controls a purge valve, the pump, the three-way valve, and the flow amount control valve so as to supply, to the catalyst, purge gas purged from the canister and air by a necessary amount to burn particulates collected in the catalyst.

Inventors:
YOSHIOKA Mamoru (1-1 Kyowa-cho 1-chome, Obu-sh, Aichi 88, 〒4748588, JP)
Application Number:
JP2019/002851
Publication Date:
September 06, 2019
Filing Date:
January 29, 2019
Export Citation:
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Assignee:
AISAN KOGYO KABUSHIKI KAISHA (1-1 Kyowa-cho 1-chome, Obu-shi Aichi, 88, 〒4748588, JP)
International Classes:
F01N3/023; F01N3/033; F02D41/04; F02M25/08
Attorney, Agent or Firm:
COSMOS INTERNATIONAL PATENT & TRADEMARK OFFICE (Annex 2nd Floor, Nagoya Center Building 2-22, Nishiki 2-chome, Naka-ku, Nagoya-sh, Aichi 03, 〒4600003, JP)
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