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Patent Searching and Data


Title:
ENGINE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/173387
Kind Code:
A1
Abstract:
The engine system includes: an engine (1) equipped with a turbocharger (5); an electronic throttle device (6); a low-pressure loop EGR device (21) including an EGR valve (23); a fresh air introduction device; and an electronic control unit (ECU (50)). The fresh air introduction device includes a fresh air introduction path (31) and a fresh air introduction valve (32) for introducing fresh air to an intake path (2) disposed downstream of the electronic throttle device (6). The electronic throttle device (6) is configured with a DC motor scheme, and the fresh air introduction valve (32) is configured with a step motor scheme. Upon determining that the engine (1) is decelerating, the ECU (50) causes the EGR valve (23) to close fully and the fresh air introduction valve (32) to open to a predetermined angle, while also causing the electronic throttle device (6) to close to a predetermined angle, thereby adjusting the total amount of air intake into the engine (1).

Inventors:
YOSHIOKA Mamoru (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)
NAKAMURA Takehide (1-1 Kyowa-cho 1-chome, Obu-sh, Aichi 88, 〒4748588, JP)
ITO Masanori (1-1 Kyowa-cho 1-chome, Obu-sh, Aichi 88, 〒4748588, JP)
Application Number:
JP2017/044871
Publication Date:
September 27, 2018
Filing Date:
December 14, 2017
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:
F02D45/00; F02D9/02; F02D11/10; F02D41/02; F02D41/12; F02D43/00; F02M26/06; F02M26/54
Foreign References:
JP2015124718A2015-07-06
JP2012007547A2012-01-12
JP2015010591A2015-01-19
Attorney, Agent or Firm:
COSMOS PATENT OFFICE (Annex 2nd Floor, Nagoya Center Building 2-22, Nishiki 2-chome, Naka-ku, Nagoya-sh, Aichi 03, 〒4600003, JP)
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