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Patent Searching and Data


Title:
ENGINE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/171671
Kind Code:
A1
Abstract:
This engine system is provided with: an engine (1); an intake passageway (2); an exhaust passageway (3); an electronic throttle device (6); a low-pressure loop supercharger (5); an EGR device (21) including an EGR valve (23); a fresh air introduction device (30) including a fresh air introduction passageway (31) and a fresh air introduction valve (32); and an electronic control device (ECU)(60). The ECU (60), in order to throttle intake air to the engine (1) during deceleration of the engine (1), causes the electronic throttle device (6) to be closed from an open valve state to a predetermined deceleration opening while causing the EGR valve (23) to become closed to shut off introduction of EGR gas into the intake passageway (2), and, in order to introduce fresh air into the intake passageway (2)(intake manifold (8)) downstream of the electronic throttle device (6), causes the fresh air introduction valve (32) to become opened from the closed valve state at a timing delayed by a predetermined period from the timing of closing the electronic throttle device (6).

Inventors:
NAKAMURA Takehide (1-1 Kyowa-cho 1-chome, Obu-sh, Aichi 88, 〒4748588, JP)
KAWAI Shinji (1-1 Kyowa-cho 1-chome, Obu-sh, Aichi 88, 〒4748588, JP)
Application Number:
JP2018/043302
Publication Date:
September 12, 2019
Filing Date:
November 23, 2018
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:
F02D23/00; F02B37/00; F02B37/16; F02D9/02; F02D21/08; F02D41/12; F02D45/00; F02M26/06
Foreign References:
JP2012057582A2012-03-22
JP2015124718A2015-07-06
JPS55119925A1980-09-16
JP2010163945A2010-07-29
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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