JPH035922U

JPH035922U -

Info

Publication number: JPH035922U
Application number: JP6439789U
Authority: JP
Priority date: 1989-06-01
Filing date: 1989-06-01
Publication date: 1991-01-21
Anticipated expiration: 2004-06-01
Also published as: JPH0734168Y2

Description

[Brief explanation of drawings]

第１図は本考案を適用したエンジンパワーユニ
ツトの一例としての可搬型エンジン発電機の概略
を示す縦断側面図、第２図は同じく横断平面図、
第３図は第１図の矢印−線に沿つた断面図、
第４図はフレキシブル成形パイプの取付状態での
単品縦断側面図、第５図は湾曲形状に変形させて
取り付ける前の一例構造を示すフレキシブル成形
パイプの単品縦断側面図である。尚、図面中、１……フレーム、２……防音ケー
ス、３……エンジン、４……作業機、９……仕切
板、１１……マフラ、１６……フレキシブル成形
パイプ、１７ａ，１８ａ……取付フランジ、１９
……蛇腹状フレキシブル部分である。 FIG. 1 is a longitudinal side view schematically showing a portable engine generator as an example of an engine power unit to which the present invention is applied; FIG. 2 is a cross-sectional plan view;
Figure 3 is a sectional view taken along the arrow-line in Figure 1;
FIG. 4 is a longitudinal cross-sectional side view of the flexible molded pipe in its attached state, and FIG. 5 is a longitudinal cross-sectional side view of the flexible molded pipe showing an example of its structure before it is bent and installed. In the drawings, 1...Frame, 2...Soundproof case, 3...Engine, 4...Work machine, 9...Partition plate, 11...Muffler, 16...Flexible molded pipe, 17a, 18a... Mounting flange, 19
...It is a bellows-shaped flexible part.

Claims

[Claims for Utility Model Registration] 1. An engine is vibration-proofly supported with respect to a frame, and a muffler provided in the exhaust system of this engine is disposed away from the engine on one end side in the crankshaft direction, and this muffler The muffler is fixed to a vibration system separate from the engine vibration system, and the muffler and the engine are connected by an exhaust pipe having a flexible molded pipe, the flexible molded pipe being fixed to a vibration system separate from the engine vibration system, the muffler being connected to the engine in the rotational vibration direction of the engine. In contrast, the engine power unit is installed in a radial arc from the center of vibration. 2. The engine power unit according to claim 1, wherein the flexible molded pipe is pre-formed into a shape that draws an arc in a radial direction from the vibration center with respect to the rotational vibration direction of the engine. 3. At both ends of the flexible molded pipe,
The flexible molded pipe is provided with mounting flanges for the engine side and the muffler side, and the flexible molded pipe is formed in a shape such that both the mounting flanges face the attached parts on the engine side and the muffler side at a predetermined angle. The flexible portion of the flexible molded pipe has a curved shape that draws an arc in the radial direction from the center of vibration with respect to the rotational vibration direction of the engine with both the mounting flanges fixed to each of the attached parts. The engine power unit according to claim 1, characterized in that the engine power unit is deformed as follows.