JPH04114195U - Soundproof engine working machine - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] In soundproof engine working machines such as engine generators, cooling air taken in from the cooling air intake opening is efficiently guided to cool the generator and engine. It is something.
The tank mounting base is also supported by the cooling air duct. [Structure] A cooling air partition 4 is disposed below the cooling air ducts 3 and 13 with the cooling air intake openings 7 and 17 opened, and the cooling air is concentrated at the starting end opening 8 by the cooling air partition 4. It is guided to the side of the oil pan by an oil pan cooling duct 5.

Description

[Detailed explanation of the idea]

0001

[Detailed explanation of the idea]

This invention eliminates internal noise in soundproof engine working machines such as engine generators. A cooling air duct is installed to draw in outside air as cooling air while preventing it from escaping. Regarding the structure of the

0002

[Conventional technology]

Techniques related to soundproof engine working machines have been known for a long time. example For example, Japanese Patent Publication No. 57-4813, Japanese Utility Model Publication No. 52-8729, and Japanese Utility Model Publication No. 52-8729. Publication No. 62-41564, Publication of Utility Model Publication No. 63-30220, Publication of Utility Model Publication No. 1987-1 Such as the technology described in Publication No. 05334 and Japanese Utility Model Application Publication No. 54-105337. Ru.

0003

[Problems that the idea should solve]

However, in conventional technology, specially oriented cooling air ducts Since it was not installed inside the machine case, the cooling air flowed through the path with the least resistance. It passed through a dangerous position and was sucked into the engine's radiator fan. late However, the generator and oil pan were not sufficiently lubricated. This invention is based on A cooling air bulkhead and oil pan cooling duct will be installed inside the engine work equipment case. This effectively cools the oil pan and generator. In addition, conventionally, cooling air Since nothing like a duct is placed inside the engine work equipment case, the fuel It was also not possible to support the tank mounting base with the cooling air duct. be. This invention supports the tank mounting base with a cooling air duct. This made it possible to make the inside of the work machine case more compact.

0004

[Means to solve the problem]

The problems to be solved by this invention are as described above, and next we will explain the means to solve the problems. I will clarify. Cooling taken in from the cooling air ducts 3 and 13 of the engine working machine case 15 The wind is used to cool the oil pan 10 of the engine E of the generator D. A cooling air bulkhead 4 and an oil pan cooling duct 5 are arranged between the base 15 and the cooling air duct. It was placed there. In addition, there are cooling air ducts 3 on the left and right inside the engine work machine case 15. ・13 is placed, and the tank mounting base of the fuel tank 1 is installed on the top of the cooling air duct 3 and 13. 2, and the cooling air ducts 3 and 13 also serve as a support mechanism for the tank mounting base 2. It is something that

[0005]

[Effect]

Next, the operation of the present invention will be explained. Cooling is provided at the front and rear of the engine working machine case 15. The cooling air intake openings 7 and 17 of the cooling air ducts 3 and 13 are opened, and the cooling air intake openings 7 and 17 are opened. External air is taken in as cooling air through the wind intake openings 7 and 17. and The cooling air is shielded by the sound insulation walls 6 and 16 and detoured, and then flows through the cooling air outlets 19 and 9. It is discharged below the engine working machine case 15. And by the cooling air partition 4 The oil pan cooling duct 5 to the oil pan 10 is concentrated at the starting end opening 8. will be guided to. In addition, the cooling air ducts 3 and 13 are equipped with tank mounting bases 2 on top. The fuel tank 1 is placed on the tank mount 2.

[0006]

【Example】

Next, embodiments of the present invention will be described. Figure 1 shows the side view of the soundproof engine working machine of the present invention. A cross-sectional view, Figure 2 is a side cross-sectional view of the generator D side, and Figure 3 is a cooling air duct of the present invention. 3.13 and a perspective view of the cooling air partition wall 4. FIG. In Figure 1, a soundproof engine The internal configuration of the work machine will be explained. The inside of the engine working machine case 15 mainly includes: A power generation device that connects engine E, flywheel case 11, and generator D is arranged. has been done. A radiator fan 20 is arranged on the right side of the engine E, Furthermore, an exhaust muffler 21 is arranged on the right side. Also, there is air at the top of engine E. A cleaner 22 is arranged. In addition, a tank mounting base 2 is installed on the top of the generator D. The fuel tank 1 is placed on the tank mounting base 2. The tank mounting base 2 is , is mounted and supported on the cooling air ducts 3 and 13, which are the essential parts of the present invention.

[0007] In addition, a battery 12 is placed in front of the generator D, and a battery 12 is placed below the generator D. The structure includes an oil pan cooling duct 5 that forcibly guides cooling air using a cooling air partition wall 4. has been completed. An operation panel 14 is arranged above the cooling air ducts 3 and 13. The soundproof type engine working machine is surrounded by an engine working machine case 15. The structure is such that the noise from the internal engine E does not leak to the outside. But inside It is necessary to cool the engine E, and the radiator fan 20 is used to A cooling air duct and cooling air intake openings 7 and 17 are required. However, the engine When the cooling air intake openings 7 and 17 are opened in the industrial machine case 15, the cooling air intake openings 7 and 17 are Noise leaks outside from 7.17, so even though this part is open, the noise It is necessary to devise ways to prevent this from occurring.

[0008] In order to solve this problem, the present invention is designed to provide cooling air with noise insulating walls 6 and 16 erected inside. The ducts 3 and 13 are installed inside the engine working machine case 15. Engine E An oil pan 10 attached below is a reservoir of lubricating oil. As the temperature of the lubricating oil increases, it becomes hotter, so it is necessary to cool this part. In order to guide cooling air to the oil pan 10, the present invention has a cooling air partition wall 4 and an oil pan cooler. A cooling duct 5 is provided. In addition, the cooling air ducts 3 and 13 allow the fuel tank to A tank mount 2 supporting a tank 1 is supported.

[0009] Next, FIG. 2 will be explained. Cooling air ducts 3 and 13 are located at the rear of generator D. Since the front cooling air duct 3 is arranged eccentrically, the front cooling air duct 3 is wider and the rear cooling air duct 3 is wider. The cooling air duct 13 is configured to have a narrower width. And cooling air duct 3/13 The noise inside the engine working machine case 15 is transmitted through the cooling air intake openings 7 and 17. Sound insulating walls 6 and 16 are erected to make it difficult for people to go outside. With this configuration, cooling The cooling air enters through the cooling air intake openings 7 and 17, but the internal noise travels in a straight line, so it is not necessary to block it. The sound is insulated by the sound walls 6 and 16, making it difficult for the sound to come out. And left and right cooling air A cooling air partition wall 4 connecting the ducts 3 and 13 is configured in an arc shape below the generator D, The cooling air from the cooling air ducts 3 and 13 passes below the generator D without resistance. The oil pan cooling duct is blocked and collected at the starting end opening 8 of the oil pan cooling duct 5. The oil is concentratedly passed through the oil pan 5 and sprayed onto the side of the oil pan 10.

0010 Next, FIG. 3 will be explained. FIG. 3 shows the cooling air ducts 3 and 13 and the cooling air bulkhead 4. The shapes of the starting end opening 8 and the oil pan cooling duct 5 are expressed in a perspective view. The cooling air partition wall 4 is provided only below the generator D, and the upper part surrounds the generator D. For cooling, it is opened as a passage for cooling air. In addition, cooling air intake openings 7 and 17 The cooling air enters the cooling air ducts 3 and 13 from the air and is bypassed by the sound insulation walls 6 and 16. The air flows from the cooling air outlets 19 and 9 below the cooling air ducts 3 and 13 to the side of the cooling air bulkhead 4. It is configured to discharge onto a surface. Therefore, the cooling air sucked in from the outside is first The oil is sucked into the partition wall 4 and passes through the oil pan cooling duct 5 from the starting end opening 8. This brings us to Ilpan 10. Cooling air outlets 19 and 9 of cooling air ducts 3 and 13 are lowered. The cooling effect was improved by having the opening facing towards the direction. Ru.

[0011] In addition, the cooling air partition wall 4, the cooling air ducts 3 and 13, and the oil pan cooling duct 5 are integrated. The cooling air ducts 3 and 13 are connected to the engine working machine case 1. It is fixed at 5. Then, install the tank mounting base 2 on top of the cooling air ducts 3 and 13. Fixed by welding or bolts. The tank mounting base 2 is used for mounting the fuel tank 1. The cooling air ducts 3 and 13 and the cooling air bulkhead 4 are attached to the tank mounting stand 2. It constitutes a support mechanism.

0012

[Effect of the idea]

Since the present invention is constructed as described above, it has the following effects. That is, , since it is constructed as in claim 1, the cooling air taken in from the cooling air intake openings 7 and 17. Normally, the part with the least air resistance is selected to reach the radiator fan 20, so the Cooling air does not reach the area below the generator D and the oil pan 10, where there is a lot of resistance. Ru. However, by configuring it as in the present invention, it is possible to try to pass under the generator D. The cooling air is concentrated by the cooling air partition wall 4 and is directed from the starting end opening 8 to the oil pan cooling pipe. 5, the oil pan 10 can be efficiently cooled. It became possible. It is also possible to concentrate the cooling air on the high temperature part of the upper part of generator D. This has made it possible.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a soundproof engine working machine according to the present invention.

FIG. 2 is a side sectional view of the generator D side.

[Figure 3] Cooling air ducts 3 and 13 and cooling air bulkhead 4 of the present invention
FIG.

[Explanation of symbols]

1 Fuel tank 2 Tank mounting base 3,13 Cooling air duct 4 Cooling air bulkhead 5 Oil pan cooling duct 6,16 Sound insulation wall 7,17 Cooling air intake opening 8 Starting end opening 9,19 Cooling air outlet 10 Oil pan E engine D Generator

Claims (2)

[Scope of utility model registration request] Claim 1: A cooling air partition is provided between the engine work equipment case and the cooling air duct in order to cool the generator and the oil pan of the engine with the cooling air taken in from the cooling air duct of the engine work equipment case. A soundproof engine working machine featuring an oil pan cooling duct. [Claim 2] Cooling air ducts are arranged on the left and right sides of the engine work equipment case, and a tank mounting base for the fuel tank is arranged above the cooling air duct, and the cooling air duct also serves as a support mechanism for the tank mounting base. A soundproof engine working machine characterized by: