JPH0487327U

JPH0487327U -

Info

Publication number: JPH0487327U
Application number: JP13025690U
Authority: JP
Priority date: 1990-11-30
Filing date: 1990-11-30
Publication date: 1992-07-29

Description

[Brief explanation of the drawing]

図面は本考案に係るマフラー装置の実施例を示
し、第１図イはエゼクタ部付近の構造を示す断面
図、ロはイにおけるａ−ａ線断面図、第２図はコ
ンバインに搭載された状態を示す側面図、第３図
乃至第８図は別実施例を示し、第３図ロ，ハは夫
々第３図イのｂ−ｂ線断面図、ｃ−ｃ線断面図、
第４図ロは第４図イのｄ−ｄ線断面図、第６図ロ
は第６図イのｅ−ｅ線断面図である。４……マフラー本体、５……排気尾管、７……
排気出口、８……入口管部、９……曲がり管部、
１０……排気入口、１１……エゼクタ部、１５…
…向き変更部分、１６……凹入部、Ｗ……管内流
路。 The drawings show an embodiment of the muffler device according to the present invention, in which Fig. 1A is a cross-sectional view showing the structure near the ejector part, B is a cross-sectional view taken along line a-a in A, and Fig. 2 is a state in which it is mounted on a combine harvester. FIGS. 3 to 8 show another embodiment, and FIGS.
FIG. 4B is a sectional view taken along line dd in FIG. 4A, and FIG. 6B is a sectional view taken along line EE in FIG. 6A. 4...Muffler body, 5...Exhaust tail pipe, 7...
Exhaust outlet, 8... Inlet pipe section, 9... Bent pipe section,
10...Exhaust inlet, 11...Ejector section, 15...
...Orientation changing part, 16... Recessed part, W... Channel in the pipe.

Claims

[Claims for Utility Model Registration] 1. A muffler body 4 equipped with an exhaust outlet 7, an inlet pipe section 8 into which exhaust gas discharged from the exhaust outlet 7 flows, and a direction of gas flow within the inlet pipe section 8. An exhaust tail pipe 5 having a bent pipe part 9 to be changed is inserted between the exhaust outlet 7 and the exhaust inlet 10 of the inlet pipe part 8 from the exhaust outlet 7 to the exhaust inlet 10.
A muffler device is provided with an ejector section 11 for introducing outside air so as to be able to cause outside air to be mixed into the exhaust gas as the exhaust gas flows toward the bend. A muffler device in which the tube portion 9 is configured in such a shape that the area center position of the cross section along the tube diameter direction is biased toward the outer diameter side of the bent tube portion 9. 2. The muffler main body 4 includes an exhaust outlet 7, an inlet pipe part 8 into which exhaust gas discharged from the exhaust outlet 7 flows, and a bent pipe part 9 that changes the direction of gas flow within the inlet pipe part 8. The exhaust tail pipe 5 is connected between the exhaust outlet 7 and the exhaust inlet 10 of the inlet pipe section 8, and from the exhaust outlet 7 to the exhaust inlet 10.
A muffler device is provided with an ejector section 11 for introducing outside air so as to be able to cause outside air to be mixed into the exhaust gas as the exhaust gas flows toward the bend. The internal flow path cross-sectional area of the direction changing portion 15 of the pumped exhaust gas from the inlet pipe portion 8 in the pipe portion 9 is defined as the internal flow path cross-sectional area of the exhaust tail pipe 5 on the exhaust gas conveying upper side of the direction changing portion 15. The muffler device is set to a higher value. 3 The muffler body 4 includes an exhaust outlet 7, an inlet pipe section 8 into which exhaust gas discharged from the exhaust outlet 7 flows, and a bent pipe section 9 that changes the direction of gas flow within the inlet pipe section 8. The exhaust tail pipe 5 is connected between the exhaust outlet 7 and the exhaust inlet 10 of the inlet pipe section 8, and from the exhaust outlet 7 to the exhaust inlet 10.
A muffler device is provided with an ejector section 11 for introducing outside air so as to be able to cause outside air to be mixed into the exhaust gas as the exhaust gas flows toward the bend. A muffler device in which a pipe portion 9 is provided with a plurality of recessed portions 16 in which a channel W in the pipe of the bent pipe portion 9 projects in the direction of the outer diameter of the pipe.