JPH0714149U - Air cleaner device - Google Patents

Abstract

(57) [Summary] [Purpose] The conventional air cleaner device is
A box with an open bottom is connected to the air introduction part of the unit. However, when working during rainfall or snowfall, rain or snow may be entrained together with the intake air, resulting in a reduction in engine output and early deterioration of lubricating oil. This problem is solved. [Structure] In the present invention, a hollow box is attached to a partition plate so as to be connected to the outside air introduction port of the air cleaner, and a part of a cross section perpendicular to the air flow direction is blocked inside the box. A plurality of baffle plates were provided in a staggered manner, a plurality of water drain holes were opened in the bottom plate, and a part of the rear part of the box was opened to serve as an outside air inlet.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to an air cleaner device mounted on a construction machine such as a hydraulic excavator or a work vehicle.

[0002]

[Prior art]

 FIG. 6 is a partially cutaway side view of a hydraulic excavator to which a conventional air cleaner device is attached. In the figure, 1 is an upper revolving structure which is a vehicle body, 2 is a lower traveling structure, 3 is a driver's cab, 4 is an engine compartment, 5 is a counterweight, 6 is a cover, 7 is a partition plate, 8 is an air cleaner, 9 is a box. FIG. 7 is a plan view of a main part of the upper swing body 1 in FIG. In the figure, 10 is an engine, 11 is a radiator, 12 is an air pipe, and 13 is a cooling air introduction part of the radiator 11. FIG. 8 is an enlarged view of part A of FIG. In the figure, 14 is an air inlet of the air cleaner 8. As shown in FIGS. 6 to 8, in the air cleaner device of the prior art, the air cleaner 8 is attached to the front surface of the front partition plate 7 of the engine compartment 4, and the air cleaner 8 and the intake port of the engine 10 are connected to each other. It is connected by an air pipe 12. Further, the air introduction port 14 of the air cleaner 8 is opened in the cooling air introduction part 13 of the radiator 11 by penetrating the partition plate 7 so as to face the air introduction port 14 and be enclosed therein. A box 9 whose lower surface is opened is attached to the partition plate 7.

[0003]

[Problems to be solved by the device]

 In the conventional air cleaner device, an air cleaner is attached to the front surface of the front partition plate of the engine compartment, and a box with an open bottom is connected to the air introduction portion of the air cleaner. However, when working in the rain or snow, the intake air can be entrained with rain or snow, which results in the supply of air that is rich in water to the engine. As a result, the amount of oxygen in the air decreases, and the output of the engine decreases slightly. The present invention aims to solve the above problems.

[0004]

[Means for Solving the Problems]

 In the air cleaner device of the present invention, an empty box is attached to the partition plate so as to be connected to the outside air introduction port of the air cleaner, and inside the box, a part of a cross section perpendicular to the air flow direction is formed. Staggered baffle plates are provided in a zigzag pattern, a plurality of water drain holes are opened in the bottom plate, and a part of the rear part of the box is opened to serve as an outside air inlet. did.

[0005]

[Action]

 In the air cleaner device configured as described above, a plurality of baffle plates are provided in a staggered manner inside the box. Therefore, a part of the air flowing in from the inlet at the rear of the box collides with the first baffle plate, enters the air cleaner while successively colliding with a plurality of baffle plates, and is supplied to the engine. At this time, the moisture in the air that has collided with the baffle plate will be removed by sticking to the baffle plate. In addition, the removed water is discharged through a water drain hole provided at the bottom of the box.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of the essential parts of an air cleaner device according to a first embodiment of the present invention. In the figure, the same reference numerals are given to those using the same constituent elements as those in the prior art. Reference numeral 15 is a partition plate, and 16 is a box. FIG. 2 is a cross-sectional view of the main parts of the air cleaner device as seen from BB of FIG. FIG. 3 is a perspective view of the box 16. In the figure, 17 is an air inlet, 18 and 19 are baffle plates, 20 is a drain hole, and 21 is an opening facing the inlet of the air cleaner 8.

Next, the structure of the air cleaner device of the present invention will be described with reference to FIGS. In the air cleaner device of the present invention, as shown in FIGS. 1 and 2, the air cleaner 8 is attached to the front surface of the partition plate 15, and the air introduction port 14 of the air cleaner 8 penetrates the partition plate 15. A box 16 is attached to the partition plate 15 so as to surround the air introduction port 14 by inserting the box 16 into the partition plate 15. Further, as shown in FIG. 3, the box 16 is a hollow hexahedron having an opening 17 and an air inlet 21, and comprises a baffle plate 19 in contact with the upper and left and right inner walls and a plurality of baffle plates 19 in contact with the lower and left and right inner walls. The baffle plates 18 are arranged in a staggered manner, and their free ends reach almost the center of the box 16. Further, a plurality of drain holes 20 are provided on the bottom.

FIG. 4 is a perspective view of a box 22 showing a second embodiment of the present invention. In the figure, 23 is an air inlet, 24 and 25 are baffle plates, and 26 is a drain hole. In the box 22 of the present invention, an air inlet port 23 is formed near the rear portion of the upper surface, a plurality of baffle plates 24 are attached to the upper portion of the box 22, and baffle plates 25 are attached to the lower portion in a staggered manner. , A plurality of water drain holes 26 are provided at the bottom.

FIG. 5 is a perspective view of a box 27 showing a third embodiment of the present invention. In the figure, 28 is an air inlet, 29 and 30 are baffle plates, and 31 is a drain hole. In the box 27 of the present invention, an air inlet 28 is formed near the rear part of the left side, and a plurality of baffle plates 29 contacting the left and upper inner walls and a baffle plate 30 contacting the right and upper inner walls are staggered. And the free end thereof reaches almost the center of the box 27. Further, a plurality of water drain holes 31 are provided on the bottom.

[0010]

[Effect of device]

 In the conventional air cleaner device, the air introduction part of the air cleaner and the box with the lower surface opened were connected via a partition plate, but the structure was such that rain or snow could easily enter. In the present invention, a plurality of baffle plates are provided in a zigzag manner inside the box connected to the air introduction part of the air cleaner, and a drain hole is opened at the bottom. As a result, the water content in the intake air can be removed, and the water content can be reduced. Therefore, the output reduction of the engine can be prevented.

[Brief description of drawings]

FIG. 1 is a side view of an air cleaner device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the main parts of the air cleaner device as viewed from BB of FIG.

FIG. 3 is a perspective view of a box showing a first embodiment of the present invention.

FIG. 4 is a perspective view of a box showing a second embodiment of the present invention.

FIG. 5 is a perspective view of a box showing a third embodiment of the present invention.

FIG. 6 is a partially cutaway side view of a hydraulic excavator equipped with a conventional air cleaner device.

FIG. 7 is a plan view of a main part of the upper swing body in FIG.

FIG. 8 is an enlarged view of A in FIG.

[Explanation of symbols]

1 Upper revolving structure 4 Engine room 7,15 Partition plate 8 Air cleaner 9,16,22,27 Box 14,17,23,28 Air introduction port 18,19,24,25,29,30 Baffle pre-
To 20, 26, 31 drain hole

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area F02M 35/10

Claims (1)

[Scope of utility model registration request] 1. An air cleaner is attached to a front surface of a front partition plate of an engine room inside a vehicle body of a construction machine, the air cleaner and an engine intake port are connected by a pipe, and an outside air introduction port of the air cleaner. In the air cleaner device in which the partition plate is inserted to open the cooling air introduction part of the radiator, a hollow box is attached to the partition plate so as to be connected to the outside air introduction port of the air cleaner, Inside the box, a plurality of baffle plates are provided in a zigzag manner so as to block a part of the cross section perpendicular to the air flow direction, and a plurality of water drain holes are opened in the bottom plate. An air cleaner device characterized in that a part of the rear portion is opened to serve as an inlet for outside air.