JPH0421725U

JPH0421725U -

Info

Publication number: JPH0421725U
Application number: JP6218290U
Authority: JP
Priority date: 1990-06-14
Filing date: 1990-06-14
Publication date: 1992-02-24

Description

[Brief explanation of the drawing]

第１〜４図は本考案に係わるもので、第１図は
２サイクルエンジンの断面図、第２図は第１図の
−断面図、第３図は第１図の−断面図、
第４図は−断面図、第５〜７図は従来例で、
第５図は第１図応当図、第６図は掃気孔と排気孔
の相対位置関係を示す平面図、第７図は第５図の
−断面図である。２……クランクケース、５……エアクリーナ、
６……気化器、７……吸気孔、８……排気孔、１
０２，１０３……空気通路、１０４……第１の掃
気通路、１０５……第２の掃気通路。 1 to 4 are related to the present invention; FIG. 1 is a cross-sectional view of a two-stroke engine, FIG. 2 is a cross-sectional view of FIG. 1, FIG. 3 is a cross-sectional view of FIG.
Figure 4 is a cross-sectional view, Figures 5 to 7 are conventional examples,
FIG. 5 is a view corresponding to FIG. 1, FIG. 6 is a plan view showing the relative positional relationship between the scavenging hole and the exhaust hole, and FIG. 7 is a cross-sectional view taken from FIG. 5. 2...Crank case, 5...Air cleaner,
6... Carburizer, 7... Intake hole, 8... Exhaust hole, 1
02, 103... Air passage, 104... First scavenging passage, 105... Second scavenging passage.

Claims

[Scope of utility model registration request]

Air passages 102 and 103 that communicate with the rotational center of the crankshaft of the crankcase and allow only air to be taken in.
a mixture passage that communicates with the outer periphery of the crankshaft rotation of the crankcase and allows a mixture of fuel and air to flow therein; and a mixture passage that is provided on a side of the crankcase that is close to an exhaust hole that communicates with the rotational center of the crankshaft. 1
a scavenging passage 104 and a second scavenging passage 1 provided on the side opposite to the exhaust hole that communicates with the outer circumference of the crankcase.
A 2-stroke engine comprising 05.