JPH0292038U

JPH0292038U -

Info

Publication number: JPH0292038U
Application number: JP21189U
Authority: JP
Priority date: 1989-01-05
Filing date: 1989-01-05
Publication date: 1990-07-20
Anticipated expiration: 2004-01-05
Also published as: JPH0643474Y2

Description

[Brief explanation of drawings]

第１図は本考案に係る防音型エンジン発電機の
縦断側面図、第２図は同横断側面図、第３図は上
ケースの分解斜視図、第４図は吸音材の取付構造
図、第５図は底板の外観斜視図、第６図から第８
図は冷却風の流れを示す説明図である。尚、図面中、１はエンジン発電機、２は防音ケ
ース、３は底板、５は背面板、７は上ケース、７
ａは排気口、７ｂは排風口、１０は仕切板、１０
ａは冷却風連通口、１２はラジエータフアン、１
３はエンジン、１４は発電機、１６はマフラ、１
８はマフラの排気管、１９は導風板、２０は吸音
材、Ｓ１は機器収容室、Ｓ２は排風室、Ｓ２ａは
排風路である。 Fig. 1 is a longitudinal cross-sectional side view of the soundproof engine generator according to the present invention, Fig. 2 is a cross-sectional side view thereof, Fig. 3 is an exploded perspective view of the upper case, Fig. 4 is a structural diagram of the mounting structure of the sound-absorbing material, Figure 5 is an external perspective view of the bottom plate, Figures 6 to 8
The figure is an explanatory diagram showing the flow of cooling air. In addition, in the drawing, 1 is an engine generator, 2 is a soundproof case, 3 is a bottom plate, 5 is a back plate, 7 is an upper case, 7
a is an exhaust port, 7b is an exhaust port, 10 is a partition plate, 10
a is a cooling air communication port, 12 is a radiator fan, 1
3 is the engine, 14 is the generator, 16 is the muffler, 1
8 is an exhaust pipe of the muffler, 19 is a wind guide plate, 20 is a sound absorbing material, S1 is an equipment storage chamber, S2 is an exhaust chamber, and S2a is an air exhaust path.

Claims

[Scope of utility model registration request]

The inside of the soundproof case is divided into an equipment storage room and an exhaust ventilation room, and the equipment storage room is equipped with a radiator, a radiator fan,
The engine and the work equipment driven by it are arranged in order from the ventilation chamber side, and a muffler equipped with a direction-changing wind guide surface that changes the flow of cooling air from sideways to upward is placed at the bottom of the ventilation chamber. In a soundproof engine working machine that sends outside air taken in from the equipment storage chamber side during operation to the exhaust chamber side and discharges it to the outside of the soundproof case from an exhaust port formed in the upper part of the exhaust chamber, in the lower part of the exhaust chamber, A muffler having a substantially elliptical cylindrical outer shape is tilted in the direction of the long axis of the substantially ellipse to the opposite side from the radiator fan, and is placed horizontally away from the soundproof case, with the exhaust pipe of the muffler facing upward. An air exhaust passage is formed in the upper part of the air exhaust chamber and extends to the upper surface of the soundproof case, and extends to the center of the soundproof case, so that the air exhaust port is opened from above the muffler to the soundproof case. A soundproof engine working machine characterized by being installed in a position closer to the center of the engine.