JPH0114725Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a mist discharge device for an engine working machine set in which a combination of an engine, a generator, and other working machines is mounted on a common platform.

(Prior Art) In a conventional generator set with a bonnet, the mist is released into the bonnet or the mist is discharged from above the bonnet to the outside of the bonnet. Also, in a generator set without a bonnet, the mist is released to the atmosphere below the engine. However, when the engine mist is released into the bonnet, the engine mist is sucked into the radiator, and oil in the mist adheres to the radiator surface, reducing the heat dissipation effect. In addition, when the mist is released into the outside air, there is a problem of environmental pollution, which is unfavorable from a sanitary point of view. Furthermore, the radiator may sometimes suck in the mist once released into the outside air, which may impair the heat dissipation efficiency of the radiator.

(Purpose of the invention) The purpose of the invention is to inexpensively prevent engine mist from dispersing into the atmosphere. Another purpose of the present invention is to prevent mist from being sucked into the radiator and maintain the best cooling effect of the radiator.

(Structure of the invention) The present invention is an engine working equipment set in which the combination of the engine and the working equipment is mounted on a common platform. This is a mist discharge device for an engine working machine set, characterized in that the mist discharge device is opened to the outside through a space in the material cross section of a common platform.

(Example) In Fig. 1, 1 is a common platform, 2 is an engine,
3 is a generator, and 4 is a bonnet. Common platform 1
is a frame in which a pair of side members 1a with a U-shaped cross section are joined together by a plurality of cross members 1b, and the engine 2 is mounted on the frame.
and a generator 3 are mounted, and the output shaft of the engine 2 and the rotating shaft of the generator 3 are directly connected via a joint (not shown). A radiator 6 is arranged in front of the cooling fan 5 of the engine 2 (right side in FIG. 1),
A cooling air outlet 7 is provided in the front wall of the bonnet facing the front of the radiator 6. The bonnet 4 is also provided with a large number of lattice windows (louvers, not shown) that serve as cooling air intakes.

A cap 9 for guiding the mist in the valve arm chamber 2a is provided on the upper wall of the valve arm chamber 2a at the upper end of the engine 2, and a hose 10 connected at one end to the cap 9
approaches the cooling fan 5 side from the base 9, descends near the cooling fan 5, and is connected to a mist discharge base 11 provided on the common platform 1. The parts where the hose 10 is fitted into the caps 9 and 11 are tightened with hose bands. The base 11 is a common base 1
The side member 1a is fixed by welding or other means so as to penetrate the upper wall of the side member 1a.
A is opened downward into the U-shaped space 12, and the base 11 is close to the vertical inner surface 13 of the side member 1a so that it is flush with the vertical inner surface 13 of the side member 1a. Therefore, the oil flowing down inside the base 11 is It flows downward along the inner surface 13 of the side member.
FIG. 2 clearly shows a state in which the mist hose 10 is placed near the cooling fan 5, avoiding the cooling fan 5.

Oil mist generated in the engine 2 during operation of the engine generator set is discharged from the valve arm chamber 2a through the mouthpiece 9, and is forced by the wind sucked into the cooling fan 5 while flowing through the hose 10. The oil is cooled down and flows down from the mouthpiece 11 onto the inner surface 13 of the side member in the form of oil droplets. On the other hand, cooling fan 5
As a result, the air around the engine 2 passes through the radiator 6 and is discharged from the discharge port 7 to the outside and front of the bonnet 4 as shown by arrow A, and instead, cold fresh air is sucked into the bonnet 4 from the cooling air inlet of the bonnet 4. be done. After this fresh air cools the generator 3 and engine 2, it also cools the mist hose 10 at the same time.
Heat is removed from the cooling water while passing through the radiator 6.

(Effects of the invention) As explained above, according to the invention, the mist hose 10 is connected to the pipe cap 11 provided through the common pedestal 1, so the hose 10 is connected to the material of the common pedestal 1. It opens into a space 12 within the cross section. Since the common platform 1 is located below the engine 2 and the mist hose 10 is sufficiently long, the mist becomes droplets to some extent within the mist hose 10, and a somewhat box-shaped space 12 using the wall of the common platform 1 This has the advantage that it can effectively prevent problems caused by being emitted into the atmosphere, becoming more liquid droplets, and dissipating into the atmosphere in gaseous form. Further, since the hose 10 only needs to be lowered from the mist mouthpiece 9 through the vicinity of the cooling fan 5, there is no risk of high cost, and the apparatus can be assembled at a low cost. Particularly when the cooling fan 5 is of a type that discharges the air inside the bonnet 4 to the outside of the bonnet through the radiator 6, oil mist is not discharged into the bonnet 4, so there is no possibility that the oil mist will be sucked into the radiator 6. When the oil content in the oil mist adheres to the radiator 6, dust, sand, etc. tend to adhere there, which extremely deteriorates the cooling effect of the radiator.
Even in the case of the cooling air discharge type as shown in the figure, since no oil mist is released into the bonnet 4, the cooling effect of the radiator 6 can be maintained for a long period of time.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of an engine generator set to which the present invention is applied, and FIG. 2 is a schematic front view as viewed from the arrow in FIG. 1... Common platform, 2... Engine, 3... Generator (working machine), 5... Cooling fan, 10... Mist hose (mist pipe), 12... Space.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In an engine working equipment set in which the combination of the engine and the working equipment is mounted on a common platform, the mist pipe of the engine is passed near the cooling fan where the cooling air hits, and the mist pipe is A mist discharge device for an engine working machine set, characterized in that the tip of a pipe is opened to the outside through a space within a cross section of a material of a common platform. (2) The engine working machine set forth in claim 1, wherein the engine working machine set is covered with a bonnet, and the mist pipe is open to the outside of the bonnet through a space within the material cross section of the common platform. Set mist discharge device. (3) The mist discharging device for an engine working machine set according to claim 1, wherein the cooling fan is of a discharge type for discharging air inside the bonnet.