JPS6033299Y2 - Hot air induction device in the engine section of agricultural tractors - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hot air induction device in the engine section of an agricultural tractor.

In current agricultural tractors, the area around the radiator cooling fan is surrounded by a cover and a safety cover to prevent direct contact with rotating objects and to prevent this danger.

However, since the hot air sent by the radiator cooling fan is scattered outside through the mesh cut-out window on the side panel of the cover, the hot air released from the mesh cut-out window cannot be completely sent out to the outside of the aircraft. When the engine is stuck under the hood, the engine overheats, which can lead to problems such as a decrease in output and seizures.

Therefore, the present proposal is to open the top of the cover of the radiator cooling fan, provide a cut-out window with a mesh in the bonnet part above the cover, and exhaust the hot air inside the cover to the side through the cut-out window with the mesh in the side panel. The engine is effectively cooled by dispersing the hot air through the mesh cut-out window of the bonnet part, and by providing a cover over the mesh cut-out window that scatters the hot air along the bonnet surface. This makes it possible to effectively discharge and scatter.

The drawings will be explained below.

The engine 1 of the agricultural tractor is covered from above by a bonnet 2, but the area around the cooling fan 4 driven by the belt 3 from the drive pulley of the engine 1 is covered by the cover 5.
The cooling fan 4 and the radiator 6 arranged in front of the cooling fan 4 constitute one chamber.

There is a cut window 7 with a mesh on the side plate of the cover 5, and a safety cover 8 is provided between the radiator 6 and the lower side of the cover 5.

However, with only such a structure, the hot air sent from the radiator cooling fan 4 will only scatter to the outside through the mesh cut-out window 7 on the side plate of the cover 5. Therefore, with only the mesh cut-out window 7, the hot air cannot be completely removed. It could not be sent out to the outside of the aircraft, and the engine would be trapped inside the bonnet 2, causing the engine to overheat, leading to a risk of malfunctions such as a decrease in output and seizure.

In the above-mentioned agricultural tractor, the present invention opens the top of the cover 5 of the radiator cooling fan 4, separately provides a cut window 15 with a mesh in the 2 part of the bonnet located above this, and above the cut window 15 with a mesh, A hot air scattering cover 16 parallel to two surfaces of the bonnet is detachably attached to the bonnet 2 with bolts and nuts 17, so that hot air is scattered along the two surfaces of the bonnet.

When the mesh window 15 is provided on the bonnet 2 as described above, not only the hot air discharged from the opening at the top of the cover 5 but also the hot air discharged from the mesh window 7 on the side panel enters the bonnet 2. The exhaust heat is removed from the mesh cut-out window 1 of the bonnet 2.
Since the exhaust heat is also exhausted from the bonnet 2, the engine is effectively cooled without being trapped in the bonnet 2.

However, if the hot air scattering cover is made of a simple strip as shown in Figures 1.2 and 3.4, the hot air will be sent out forward and to the left and right.

In order to block the wind for the operator, rear scattering prevention plates 18 may be attached to both sides of the hot air scattering cover 16, as shown in FIGS. 6 and 7.

Further, although not shown, if the hot air scattering cover 16 is installed in the opposite direction to that shown, that is, with the set part of the bolt nut 17 in front of the mesh cut window 15, the hot air can be sent out backward. This makes it possible to measure the heating effect on the operator during cold weather operations.

In addition, in the figure, 9 is the battery, 10 is the air cleaner, 1
1.12 is the front and rear wheels, 13 is the steering wheel, 14
indicates each seat.

In any case, in the present invention, a cut window with a mesh is provided in the bonnet section above the open top part of the radiator cooling fan cover, and a hot air scattering cover is provided on the cut window with a mesh parallel to the bonnet surface. , the hot air discharged from the opening at the top of the cooling fan cover, and a portion of the hot air discharged to the outside from the mesh cut-out window in the side panel, are effectively discharged from the mesh cut-out window in the bonnet without being trapped in the hood. engine heat due to exhaust heat,
This will not cause malfunctions such as a decrease in output or seizure, and the mesh cut window prevents foreign objects from entering the bonnet, and the cover provided on the bonnet above the mesh cut window is parallel to the bonnet surface. Because of this, hot air can be scattered along the bonnet surface, and rainwater can be effectively prevented from entering the ribbon net through the mesh cut-out window.

[Brief explanation of the drawing]

Figure 1 is a side view of the proposed agricultural tractor, Figure 2 is a partially enlarged side view of the same as above, Figure 3 is a partially enlarged cut-away side view showing the proposed device, Figure 4 is a plan view of the same as above, and Figure 5 is a partially enlarged side view of the same as above. I-I in the diagram
The line sectional view and FIGS. 6 and 7 are a plan view and a slope view of the rear scattering prevention plate attached to the hot air scattering cover.

Claims (3)

[Scope of utility model registration request] (1) Hot air induction in the engine section of an agricultural tractor in which a cut window with a mesh is provided in the bonnet above the open top of the radiator cooling fan cover, and a hot air scattering cover parallel to the bonnet surface is provided on the cut window with the mesh. Device. (2) A hot air scattering cover over a cut window with a mesh is attached to the bonnet so that it can be attached to the front or back, so that the hot air can be scattered forward or backward. A hot air induction device in an engine section of an agricultural tractor according to item 1. (3) A hot air induction device in an engine section of an agricultural tractor according to claim 1, which comprises removable rear scattering prevention plates on both sides of a hot air scattering cover.