JPH0476905U

JPH0476905U -

Info

Publication number: JPH0476905U
Application number: JP12196690U
Authority: JP
Priority date: 1990-11-20
Filing date: 1990-11-20
Publication date: 1992-07-06

Description

[Brief explanation of drawings]

第１〜６図は、本考案の一実施例を示し、第１
図は断面図、第２図は吸気・排気バルブガイドの
正面図、第３図は螺旋状フインを取着した状態の
吸気・排気バルブガイドの正面図、第４図は第３
図の横断面図、第５図はＨ状薄材の斜視図、第６
図は連結材の斜視図である。１……吸気マニホールド（排気マニホールド）
、２……吸気ポート（排気ポート）、３……吸気
バルブガイド（排気バルブガイド）、４……延長
部外周、５……螺旋状フイン、６……シリンダ、
７……吸気バルブ（排気バルブ）、７ａ……弁傘
部、７ｂ……弁棒部、８……螺旋状フイン取着用
溝、９……Ｈ状薄材、９ａ……中央横材、９ｂ…
…左右縦材、１０……連結材、１０ａ……係合部
、１１……螺旋流路、１１ａ……流路始端、１２
……係合孔。 1 to 6 show an embodiment of the present invention.
The figure is a cross-sectional view, Figure 2 is a front view of the intake/exhaust valve guide, Figure 3 is a front view of the intake/exhaust valve guide with the spiral fin attached, and Figure 4 is the front view of the intake/exhaust valve guide.
Figure 5 is a cross-sectional view of the figure, Figure 5 is a perspective view of the H-shaped thin material, Figure 6 is
The figure is a perspective view of the connecting member. 1...Intake manifold (exhaust manifold)
, 2... Intake port (exhaust port), 3... Intake valve guide (exhaust valve guide), 4... Extended portion outer periphery, 5... Spiral fin, 6... Cylinder,
7... Intake valve (exhaust valve), 7a... Valve head portion, 7b... Valve stem portion, 8... Groove for attaching spiral fins, 9... H-shaped thin material, 9a... Center cross member, 9b …
...Left and right vertical members, 10... Connecting member, 10a... Engaging portion, 11... Spiral channel, 11a... Channel starting end, 12
...Engagement hole.

Claims

[Scope of claim for utility model registration] (1) Intake/exhaust valve guides are extended to the vicinity of the intake/exhaust ports of the intake/exhaust manifold, and spiral fins are attached to the outer periphery of the extended portions of the intake/exhaust valve guides. A structure of an intake/exhaust valve section in an internal combustion engine, characterized in that the intake/exhaust valve section is configured to generate a spiral flow in the intake/exhaust flow. (2) The structure of an intake/exhaust valve portion in an internal combustion engine according to claim 1, wherein a spiral fin mounting groove is provided on the outer periphery of the extension portion of the intake/exhaust valve guide. (3) A spiral fin is formed by connecting two H-shaped thin materials and the H-shaped fin.
Consisting of a connecting material for connecting shaped thin materials,
The central horizontal member of the H-shaped thin material is formed into a curved surface along the circumferential direction of the intake/exhaust valve guide, and the left and right vertical members of the H-shaped thin material have a twist, so that the intake/exhaust valve guide In addition to being arranged parallel to the length direction of the guide,
2. The structure of an intake/exhaust valve portion in an internal combustion engine according to claim 1, wherein the intake/exhaust valve portion is bent to project radially outward from the outer periphery of the intake/exhaust valve guide.