Swirl forming device in combustion engine

Details Swirl forming device in combustion engine Swirl forming device in combustion engine

2006-11-28

2006-11-28

Solis, Erick R (Department: 3747)

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

C123S586000

Reexamination Certificate

active

07140347

ABSTRACT:
To provide an improved swirl forming device in a combustion engine, which is effective to promote a vigorous and massive swirling motion of the charge mixture within the combustion chamber, the swirl forming device includes an auxiliary passage (24) for introducing an auxiliary gas, which may be either air or a charge mixture, into the combustion chamber (9) from a location immediately upstream of the intake port (70) that is selectively opened and closed by the intake valve (10). This auxiliary passage (24) has an open end (25) positioned adjacent the exhaust port (80), such that when viewed from top in a direction conforming to the longitudinal axis (CC) of the cylinder bore (3), the auxiliary gas is introduced in a direction different from the direction (N) normal to the inner peripheral surface (3a) of the cylinder bore (3) to thereby form a swirl (S) along the inner peripheral surface (3a) of the cylinder bore (3).

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patent: 6938613 (2005-09-01), Tamura et al.
patent: 2004/0194755 (2004-10-01), Shiraishi et al.
patent: 2003-113719 (2003-04-01), None

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