JPH0183131U

JPH0183131U -

Info

Publication number: JPH0183131U
Application number: JP1987178237U
Authority: JP
Priority date: 1987-11-25
Filing date: 1987-11-25
Publication date: 1989-06-02

Description

[Brief explanation of the drawing]

第１図は本考案に係る２サイクルエンジンのリ
ードバルブ装置をエンジンに組み込んだ状態を示
す断面図、第２図ＡないしＣは上記実施例におけ
るリードバルブストツパのアールの立上り位置の
差を示す側面図、第３図は上記実施例においてア
ールを有しないリードバルブストツパの形状を示
す平面図、第４図は本考案の他の実施例をエンジ
ンに組み込んだ状態を示す断面図、第５図は上記
実施例を示す側面図、第６図ＡおよびＢは上記実
施例においてリードバルブストツパのアールの立
上り位置の差を示す側面図、第７図は上記実施例
においてアールを有しないリードバルブストツパ
の形状を示す側面図である。１……シリンダ、２……ピストン、３……クラ
ンク室、８……吸気通路、９……バルブシート、
１０Ａ，１０Ｂ，１０Ｃ，１０Ｄ，１０Ｅ，１０
Ｆ……リードバルブ、１１Ａ，１１Ｂ，１１Ｃ，
１１Ｄ，１１Ｅ，１１Ｆ……リードバルブストツ
パ。 FIG. 1 is a cross-sectional view showing the state in which the reed valve device for a two-stroke engine according to the present invention is installed in the engine, and FIGS. 2 A to C show the difference in the rising position of the radius of the reed valve stopper in the above embodiment. 3 is a plan view showing the shape of the reed valve stopper having no radius in the above embodiment, FIG. 4 is a sectional view showing another embodiment of the present invention installed in an engine, and FIG. The figure is a side view showing the above embodiment, Figures 6A and B are side views showing the difference in the rising position of the radius of the reed valve stopper in the above embodiment, and Figure 7 is a reed without radius in the above embodiment. FIG. 3 is a side view showing the shape of a valve stopper. 1... Cylinder, 2... Piston, 3... Crank chamber, 8... Intake passage, 9... Valve seat,
10A, 10B, 10C, 10D, 10E, 10
F...Reed valve, 11A, 11B, 11C,
11D, 11E, 11F...Reed valve stopper.

Claims

[Claims for Utility Model Registration] 1. A 2-stroke engine in which a valve seat is disposed across the intake passage leading to the crank chamber, and one end of a reed valve divided into a plurality of parts and a reed valve stopper are fixed to this valve seat. A reed valve device for a two-stroke engine, wherein the reed valve stopper is formed in different shapes to change the spring constant and natural frequency of each reed valve. 2. The reed valve device for a two-stroke engine according to claim 1, wherein the reed valve stopper is formed to reduce the spring constant and natural frequency of the reed valve closer to the crankshaft.