JPS6211322Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air cleaner mounting structure for a tractor engine.

Generally, a cyclone air cleaner is equipped with a dust pan at the end of its length.
The swirling wind inside the air cleaner collects dust in the dust pan. However, conventional air cleaners are placed horizontally in front of the radiator, for example, so some of the dust may not be stored in the dust pan and remain inside the air cleaner, or as mentioned above, the dust remaining inside the air cleaner may There was a problem in which the element entered the cylinder head side (supercharger side) when replacing or cleaning the element.

On the other hand, in order to completely store the dust inside the dust pan, it is conceivable to arrange the air cleaner vertically so that the dust pan is at the bottom end, but there is no space in the bonnet to arrange the air cleaner vertically.

The object of the present invention is to enable the air cleaner to be placed horizontally so that it can be easily placed inside the bonnet, while still being able to reliably send dust into the dust pan. The present invention will be explained below based on the drawings.

In FIG. 1, which is a side sectional view of the front part of the tractor (arrow F points toward the front), a radiator 2 is arranged at the front end of the bonnet 1, an engine 3 is arranged behind the radiator 2, and an engine 3 is arranged at the rear of the radiator 2. A fuel tank 4 is arranged on the side. The upper half of the fuel tank 4 extends upward from the upper end of the engine 3. A large number of air circulation holes are formed in the bonnet front grille 5 in front of the radiator 2. 6 is a radiator cooling fan, and 7 is a fuel injection pump.

A cyclone air cleaner 8 is disposed horizontally at the upper end of the engine 3 along the front end surface of the fuel tank 4, and is fixed to the engine 3 via a vertical bracket 9. That is, as shown in FIG. 2, the air cleaner 8 is arranged to extend in the left-right direction, and covers the front end surface of the upper half of the fuel tank 4 from the front side. A clean air outlet 11 that opens downward is formed at the right end of the air cleaner 8 in FIG. is detachable. The air cleaner 8 is inclined so that the dust pan 13 side is lower. The air outlet section 11 is connected to an inlet section of a supercharger 15, and the outlet section of the supercharger 15 is connected to an intake manifold 17 via a pipe 16. As shown in FIG. 1, the air inlet section 12 has a rubber connecting pipe 18 extending forward.
A suction pipe 20 passing above the radiator 2 is connected to the front end of the rubber communication pipe 18. The suction pipe 20 opens forward and
Its cross section is elliptical as shown in FIG.

FIG. 4 is a partial sectional view of the air cleaner 8 taken in the direction of the arrow in FIG. A spiral blade 23 is provided on the outside of the blade. The dust pan 13 is removably attached, for example, with a snap lock 25, and is attached to the intermediate wall 2 of the dust pan 13.
6 is formed with a dust introduction hole 27 having an arcuate cross-section. A bottom plate 28 is attached to the outer cylinder 21 and the inner cylinder 22.
is fixed, and the bottom plate 28 is tightened to the support 31 with nuts 29.

Note that the air cleaner 8 includes both cylinders 21 and 22.
A filter member may be arranged in between. 3
2 and 33 are Patsukin.

Air flowing in from the air inlet portion 12 swirls around the outer circumference of the outer cylinder 21 by the action of the vanes 23, passes through the outer cylinder 21 and the inner cylinder 22, or passes through the outer cylinder 21, the filter, and the inner cylinder 22, and enters the inner cylinder. It enters the cylinder 22 and is supplied from the outlet section 11 to the supercharger 15 (FIGS. 1 and 2). Dust remaining on the outer peripheral side of the outer cylinder 21 passes through the dust introduction hole 27 and accumulates in the dust pan 13. Since the air cleaner 8 is inclined so that the dust pan 13 side is lower, dust remaining on the outer circumferential side of the outer cylinder 21 is reliably sent to the dust pan side by gravity and engine vibration, and the dust pan 13 side is reliably sent to the dust pan side.
Go inside.

When removing the dust accumulated in the dust pan 13, remove the side cover 1a (FIG. 2) of the bonnet 1, and then remove the dust pan 13. Further, when cleaning or replacing elements such as the outer cylinder 21, the nut 29 is removed and the outer cylinder 21 and the like are taken out.

As explained above, according to the present invention: (1) Since the air cleaner 8 is placed horizontally, it can be easily placed inside the bonnet 1 where the installation space is limited, especially above the engine where the vertical length is limited. Can be done.

(2) Even though the air cleaner 8 is placed horizontally,
Since the dust pan 13 side is slightly inclined to be lower, the dust can be reliably fed into the dust pan 13 by gravity and the vibration of the engine 3. That is, the dust collection ability is extremely good, and no dust remains in the main body of the air cleaner 8 (the outer peripheral side of the outer cylinder 21).
Therefore, when replacing elements, etc., dust may be removed from the turbocharger 1.
There is no need to worry about it entering the 5 side (exit section 11 side).

(3) The air cleaner is arranged to extend in the left-right direction, the dust pan 13 is detachably provided at one end in the left-right direction, and the dust pan 13 is located near the removable side cover 1a of the bonnet 1. , side cover 1a
By removing the bonnet 1, the operator can
You can easily remove the dust pan 13 from the outside and clean the air cleaner or replace the element without having to insert your hands inside.
It's practical.

(4) Since the air outlet part 11 and the air inlet part 12 are formed at the opposite end of the dust pan 13 in the left and right direction, the air outlet part 11 and the air inlet part 12 will get in the way when the dust pan 13 is attached or removed. This makes it easy to attach and detach the dust pan 13.

(5) Since the elongated cylindrical air cleaner 8 is disposed horizontally on the upper portion of the engine, the length of the bonnet 1 in the front-rear direction can be kept sufficiently compact.

[Brief explanation of the drawing]

Figure 1 is a front side sectional view of a tractor that employs the air cleaner mounting structure of the present invention, and Figure 2 is a
FIG. 3 is a partial cross-sectional view of FIG. 1, and FIG. 4 is a partial view of the air cleaner in the direction of the arrow in FIG. 2...Radiator, 3...Engine, 8...Air cleaner, 13...Dust pan.

Claims (1)

[Scope of utility model registration request] A dust pan 13 is removably provided at one end in the length direction of the cyclone air cleaner 8, which has a long cylindrical shape, and an air outlet section 11 and an air inlet section 12 are provided at the other end in the length direction. The dust pan 13 is placed on top of the engine in a horizontal position slightly inclined so that it extends in the direction and the dust pan side is lowered, and the dust pan 13 is positioned near the removable side cover 1a of the bonnet 1, and the side cover 1a is removed. Dust pan 13
An air cleaner mounting structure for a tractor engine, characterized in that the air cleaner can be attached and detached from the side of the bonnet.