JPH064040Y2 - Engine generator vehicle with noise suppression device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a noise-preventing engine-generator vehicle in which an operation panel room is provided further behind a soundproof room mounted behind a cabin.

(Prior Art) The applicant of the present invention has developed a device for preventing engine noise and overheating (No. 46-28105, No. 47-130).
No. 03) is proposed.

These devices try to reduce the noise generated by a power supply vehicle or the like as much as possible.

(Problems to be Solved by the Invention) Even a power supply vehicle equipped with the above-described device has a certain degree of noise reduction effect.

However, in recent years, complaints from residents in the surrounding area have become higher regarding noise and the like, and compensation may often be required.

The object of the present invention is to further improve the above-mentioned device to minimize the generation of noise, exhaust gas, hot air, etc.
It is an object of the present invention to provide a motor-generator vehicle with a noise prevention device, which is capable of selecting the emission direction of inevitably generated noise, exhaust gas, hot air, and the like.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the engine-generator vehicle with a noise reduction device according to the present invention is provided with an operation panel room further behind the soundproof room mounted behind the cabin. In an engine generator vehicle with a noise prevention device, an engine generator room formed by being surrounded by an isolation wall in the soundproof room, and an inflow that takes in air from the lower side of the soundproof room into the soundproof room and supplies the air to the engine generator room. A plurality of the side chambers, an outflow side chamber that is completely separated from the engine generator chamber by a partition wall and a radiator, and guides the heated air that has passed through the radiator and is heated toward the ceiling to be discharged from an exhaust port. The silencer is arranged in the side chamber and is connected to the exhaust of the engine to muffle the noise and guide it to the exhaust port, and an opening / closing lid that is arranged in the exhaust port so that the opening direction can be selected.

(Example) Hereinafter, the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a perspective view showing a structure of a soundproof room of an embodiment of a motor-generator vehicle with a noise prevention device according to the present invention.

The interior of the soundproof room 1 is divided into an inflow-side chamber, an engine generator room, and an outflow-side room by a partition wall.

Air W ₁ sucked from an air inlet 100 provided on the floor above the cab 2 of the soundproof room 1 is fed into the inlet side chamber from an inlet 101 of the engine generator room as indicated by W ₂ .

As shown in FIG. 2, an engine 4 and a generator 5 driven by the engine 4 are mounted in the engine generator room.

FIG. 2 is a plan view (A) and a side view (B) of a motor-generator vehicle with a noise reduction device according to the present invention.

Exhaust gas from the engine 4 is connected to two silencers 6 arranged in the outflow side chamber and connected in series with the exhaust gas of the engine to muffle the noise and guide it to the exhaust port.

The muffler 6 is capable of muffling both a component containing a relatively high frequency component and a component having a lower frequency component, and two mufflers are provided in series to enhance the muffling effect.

The engine generator room and the outflow side room are completely separated by the isolation wall and the radiator 7, and all the air sucked from the outside passes through the radiator 7 and does not flow backward. All the heated air resulting from efficient and effective heat exchange of the heat generated by the engine in the radiator section is guided to the outflow side chamber.

Exhaust vent from behind the ceiling 10 of the outflow side chamber (see FIG. 1)
102 is provided.

It should be noted that W _{1 to} W _{4 in} FIG. ₁ indicate movement paths of air in the soundproof room 1.

FIG. 3 is a rear view of the engine-generator vehicle with a noise reduction device according to the present invention.

An operation panel room 3 is provided behind the soundproof room 1, and the operation panel room 3 is equipped with a generator control panel 31, a cable drum 32 for taking out the generated electric power, a transformer 33, and the like.

FIG. 4 is a schematic diagram showing a first embodiment of the exhaust port lid.

An exhaust port lid 11 is provided on the ceiling of the outflow side chamber. The exhaust port lid 11 is supported by a removable hinge 12 so as to be openable and closable on either side.

The lock rod 13 connected to the ceiling 10 at one end is hooked and connected to the hole plate 14, so that the exhaust port lid 11 is opened obliquely.

In other words, the opening direction can be selected to either of the states shown in FIG. 4B or 4C depending on which side the pull-out hinge 12 is connected to.

FIG. 5 is a schematic view showing a second embodiment in which the exhaust port lid can be opened in four directions and at different angles.

FIG. 5 (A) is a plan view showing a state in which the exhaust port lid 11 is closed.

There is no difference from the above-described embodiment in that the exhaust port lid 11 is arranged on the ceiling of the outflow side chamber.

This exhaust port lid 11 can be selected to open in either direction depending on which side the insertion / removal hinge 12 shown in FIG.

The exhaust port lid 11 is provided with hook holes 14 and 14, and each hook hole plate 14 is provided with a plurality of holes as shown in FIG. 5 (C).

The opening angle can be selected depending on which hole in the hole plate 14 the lock bar 13 whose one end is connected to the ceiling 10 side is connected to.

FIG. 6 is a schematic view showing still another embodiment of the exhaust port lid.

In each of the above-described embodiments, the worker needs to perform work such as selecting the opening direction on the ceiling 10, but in this embodiment, the opening direction can be selected by remote control.

FIG. 6 (A) is a plan view showing a state in which the exhaust port lid 21 is closed, FIG. 6 (B) is a side view showing a state in which the exhaust port lid 21 is closed, and FIG. 6 (E) is opening the exhaust port lid 21. It is a side view which shows the opened state.

As shown in FIG. 6 (A), the exhaust port lid 21 has
Two lid-side receiving holes 24 are provided on each side, that is, a total of eight.

6C and 6D show the lid side receiving hole 24 and the electromagnetic solenoid 2.
2 is a schematic view for explaining a joined state of a hinge formed by 2.

When the operator selects a side serving as a fulcrum, the electromagnetic solenoid 22 corresponding to the side is driven and the shaft 22a of the electromagnetic solenoid is coupled to the lid side receiving hole 24 as shown in FIG. Forming a fulcrum part of. After that, the exhaust port lid 21 can be opened as shown in FIG. 6 (E) by operating the telescopic cylinder 23, one end of which is coupled to the frame 25 of the exhaust port.

(Effects of the Invention) As described in detail above, the present invention is, in an engine generator vehicle with a noise prevention device, an engine generator room surrounded by an isolation wall in the soundproof room, and the soundproof room in the soundproof room. Inflow side chamber that takes in air from the lower side and supplies it to the engine generator room, and is completely separated from the engine generator room by a separating wall and a radiator to guide heated air through the radiator in the ceiling direction. An outflow side chamber is provided for discharging from the exhaust port.

Therefore, the temperature of the cooling water, which is a cooling medium for the heat released by the engine, is increased by the load of the engine generator.

All the air sucked from the outside passes through the radiator 7 without backflow, and the cooling water is efficiently cooled and discharged.

Further, since a plurality of silencers are arranged in series in the outflow side chamber, a better silencing effect can be expected as compared with the conventional one.

Further, in the present invention, an opening / closing lid is provided at the exhaust port so that the opening direction can be selected.

Therefore, the engine generator vehicle with a noise prevention device according to the present invention can change the direction of exhaust air and the direction in which sound and exhaust flow according to the environment in which the vehicle is arranged.

In many power-supply vehicles including the above-described embodiments, the method of parking the vehicle is often limited, for example, the rear portion of the vehicle usually has to be turned in a direction in which power is required.

Therefore, if the exhaust direction is fixed, it is very inconvenient when there is a private house in that direction.

In such a case, in the vehicle according to the present invention, it is possible to select the direction with the least problems and exhaust the air, and it is possible to make many selections according to the environment.

[Brief description of drawings]

FIG. 1 is a perspective view showing a structure of a soundproof room of an embodiment of a motor-generator vehicle with a noise prevention device according to the present invention. FIG. 2 is a plan view and a side view of an engine generator vehicle with a noise reduction device according to the present invention. FIG. 3 is a rear view of the engine-generator vehicle with a noise reduction device according to the present invention. FIG. 4 is a schematic diagram showing a first embodiment of the exhaust port lid. FIG. 5 is a schematic diagram showing a second embodiment of the exhaust port lid. FIG. 6 is a schematic view showing still another embodiment of the exhaust port lid. 1 ... Soundproof room, 2 ... Cab 3, Control panel room, 4 ... Engine 5 ... Generator, 6 ... Silencer 7 ... Radiator 10 ... Soundproof room ceiling, 11 ... Exhaust port lid 12 ... Insertion / removal hinge, 13 ... Lock bar 14 ... Hanging hole plate 21 ... Exhaust port lid, 22 ... Electromagnetic solenoid 23 ... Telescopic cylinder, 24 ... Lid side receiving hole 25 ... Frame 31 ... Generator control panel, 32 ... Cable drum 33 ... Transformer 100 ... Air intake port, 101 ... Intake Mouth 102 ... Exhaust port

Claims (1)

[Scope of utility model registration request] 1. A motor-generator vehicle with a noise prevention device in which an operation panel room is provided further behind a soundproof room mounted in the rear of the cabin, wherein the soundproof room is surrounded by an isolation wall. And an inflow side chamber that takes in air from the lower side of the soundproof room into the soundproof room and supplies the air to the engine generator room, and a heating wall that is completely separated from the engine generator room by a partition wall and a radiator. An outflow-side chamber that guides the generated air toward the ceiling and discharges it from the exhaust port, and a silencer that is arranged in series in the outflow-side chamber and connected to the exhaust of the engine to muffle and guide the noise to the exhaust port, An engine generator vehicle with a noise prevention device, comprising an opening / closing lid arranged at the exhaust port so that the opening direction can be selected.