Intake structure for internal combustion engine

Details Intake structure for internal combustion engine Intake structure for internal combustion engine

2007-07-24

2008-08-12

Argenbright, T. M (Department: 3747)

Internal-combustion engines

Engine speed regulator

Specific throttle valve structure

C123S306000, C123S308000, C123S432000, C123S442000, C251S305000

Reexamination Certificate

active

07409944

ABSTRACT:
An intake structure for internal combustion engine includes an intake passage which is communicated with a combustion chamber of the internal combustion engine and through which air to be supplied to the combustion chamber flows; and a valve which is provided in the intake passage and which controls the airflow in the intake passage. The intake passage has a recess which is formed in the inner wall face of the intake passage and in which the valve is arranged; and a groove that is connected to the recess, at a substantially center position of the recess in a width direction of the recess, and that extends from the recess toward the downstream side of the intake passage.

REFERENCES:
patent: 5806484 (1998-09-01), Yoneyama et al.
patent: 7188604 (2007-03-01), Isaji et al.
patent: 2004/0226536 (2004-11-01), Sakai et al.
patent: 2005/0155570 (2005-07-01), Confer et al.
patent: 3800087 (1989-07-01), None
patent: A 2004-124836 (2004-04-01), None

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