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公开(公告)号:US6003485A
公开(公告)日:1999-12-21
申请号:US45113
申请日:1998-03-20
CPC分类号: F02F1/4228 , Y02T10/146
摘要: This invention relates to a helical intake port for an internal combustion engine comprising a straight passage, a swirl passage connected to the straight passage and formed in a spiral around the center of an intake valve, and a cylindrical throat connected to the swirl passage via an opening over the whole area of the swirl passage. The cross-sectional area S of the swirl passage is determined by the following equation: ##EQU1## where: .beta.=swirl angle from swirl start position,.beta.0=whole swirl angle from swirl start position to swirl end position of swirl passage,S0=cross-sectional area of swirl passage at swirl start position.As a result, swirl can be enhanced and a high flow coefficient of the intake port can be realized.
摘要翻译: 本发明涉及一种用于内燃机的螺旋形进气口,其包括直通道,连接到直通道并围绕进气阀中心形成螺旋形的旋流通道,以及连接到涡流通道的圆柱形喉管 在漩涡通道的整个区域开口。 漩涡通道的横截面积S由下式确定:其中:β=涡旋起始位置的旋转角度,β0 =涡流起始位置到涡流通道旋转终止位置的整个涡旋角,S0 = 漩涡开始位置的涡流通道截面积。 结果,可以提高涡流,并且可以实现进气口的高流量系数。