JPH0195526U

JPH0195526U -

Info

Publication number: JPH0195526U
Application number: JP19125487U
Authority: JP
Priority date: 1987-12-15
Filing date: 1987-12-15
Publication date: 1989-06-23

Description

[Brief explanation of the drawing]

第１図は本考案に係る通風冷却式マフラの縦断
正面図、第２図はそのマフラの縦断側面図、第３
図及び第４図はそれぞれ第１図の―線断面図
、第５図は上記マフラを備える発動発電機の正面
図、第６図は第５図の―線矢視横断平面図、
第７図は第５図の―線矢視横断平面図、第８
図は通風冷却式マフラの従来例を示す斜視図であ
る。２…冷却フアン、１１…マフラ本体、１２…排
気管、５…マフラ冷却用導風路、１３…マフラカ
バー、１４…冷却風入口、１５…マフラ冷却風通
路、１６…冷却風出口、２０…排気管カバー、２
１…排気管冷却風通路、２１Ａ…入口部、２１Ｂ
…出口部、２２…仕切板、２２Ａ…導風板。 Fig. 1 is a longitudinal sectional front view of a ventilation cooling muffler according to the present invention, Fig. 2 is a longitudinal sectional side view of the muffler, and Fig. 3 is a longitudinal sectional side view of the muffler.
5 and 4 are respectively cross-sectional views taken along the line ``-'' in FIG. 1, FIG. 5 is a front view of the engine generator equipped with the muffler, and FIG.
Figure 7 is a cross-sectional plan view taken along the - line arrow of Figure 5;
The figure is a perspective view showing a conventional example of a ventilation cooling muffler. 2... Cooling fan, 11... Muffler body, 12... Exhaust pipe, 5... Muffler cooling air guide path, 13... Muffler cover, 14... Cooling air inlet, 15... Muffler cooling air passage, 16... Cooling air outlet, 20... Exhaust pipe cover, 2
1...Exhaust pipe cooling air passage, 21A...Inlet part, 21B
...Exit part, 22...Partition plate, 22A...Blow guide plate.

Claims

[Claim for Utility Model Registration] Connect the terminal end of the exhaust pipe 12 to the muffler body 11, cover the muffler body 11 with a muffler cover 13 leaving a muffler cooling air passage 15 open, and cool the cooling air A from the cooling fan 2 to cool the muffler. The exhaust pipe 12 is made to flow from the air guide path 5 to the muffler cooling air path 15.
In a ventilation cooling type muffler for an engine configured to forcibly cool the muffler body 11, a cooling air inlet 14 of a muffler cooling air passage 15 is provided on one side of the muffler cover 13, and a cooling air outlet 1 is provided on the other side.
6, insert the exhaust pipe 12 from the middle of the muffler cooling air passage 15 in the muffler cover 13 and connect it to the muffler body 11, and connect the exhaust pipe 12 to the exhaust pipe cover 2.
0, the exhaust pipe cooling air passage 21 is left open and covered, and the exhaust pipe cooling air passage 21 is formed into a U-turn shape with the partition plate 22, and its inlet portion 21A and outlet portion 21B are
is communicated with the middle part of the muffler cooling air passage 15, and the cooling air A flowing through the muffler cooling air passage 15 is connected to the inlet part 2.
A ventilation cooling type muffler for an engine, characterized in that a muffler cooling air passage 15 is provided with an air guide plate 22A that guides the exhaust pipe cooling air passage 1A from the exhaust pipe cooling air passage 21.