Title:
吸気制御装置
Document Type and Number:
Japanese Patent JP7437274
Kind Code:
B2
Abstract:
To inexpensively provide an intake control device having an escape part (gradually-increasing wall face) at an intake passage at which a flow passage cross section area is decreased toward a downstream side.SOLUTION: An intake control device 1 comprises a body 3 having an intake passage 2, and a fuel injection valve 6 for injecting fuel into the intake passage 2. A passage inner wall face 13 of the intake passage 2 comprises a gradually-decreasing wall face 14 whose cross section area is gradually decreased toward a combustion-chamber side end part of an internal combustion engine, and a gradually-increasing wall face 15 which continues up to the combustion-chamber side end part of the body 3 and whose cross section area is gradually decreased. A fuel passage hole 16 through which fuel injected by the fuel injection valve 6 passes is opened at the passage inner wall face 13, its part is opened in the gradually-increasing wall face 15, and the gradually-decreasing wall face 14 and the gradually-increasing wall face 15 are connected to each other via a cylinder face 19 whose center line C extends in a passage direction D1.SELECTED DRAWING: Figure 2
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Inventors:
Ryoji Yahagi
Daisuke Shiraida
Daisuke Shiraida
Application Number:
JP2020150860A
Publication Date:
February 22, 2024
Filing Date:
September 08, 2020
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
F02D9/10; F02D9/02
Domestic Patent References:
| JP2009180143A | ||||
| JP2006022703A | ||||
| JP2009180144A | ||||
| JP2006342675A | ||||
| JP2008031964A | ||||
| JP4269372A |
Attorney, Agent or Firm:
Deloitte Tohmatsu Patent Attorneys Corporation