JPH0741314Y2 - Air cleaners for harvesters, etc. - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an air cleaner such as a harvester, which can be used for a combine harvester as well as a harvester.

[Problems to be Solved by Prior Art and Invention] Conventionally, an engine is provided with an air cleaner that filters outside air and supplies it to the engine as combustion air. In addition, a large amount of dust is generated in harvester work, combine work, and the like. Therefore, when performing such work, the air cleaner is apt to be clogged, and it is necessary to frequently inspect and clean the air cleaner.

By coping with this, if the air cleaner is arranged inside the engine cover that covers the engine portion, it can be protected from the influence of dust. However, in such an arrangement, the air cleaner cannot be inspected or cleaned unless the engine cover is opened.

[Means for solving problems]

This invention takes the following technical means in order to solve the above problems.

That is, inside the engine cover (3) having the filter net-like outside air inlet (17), an intake cylinder (5) capable of supplying the outside air sucked from the outside air intake (17) in two directions is provided. (5) The radiator (4) is connected to one side of the air cleaner (6) and the intake port (7) of the air cleaner (6) is connected to the other side thereof.
The air cleaner (6) is arranged on the outside of the engine cover (3) to constitute an air cleaner such as a harvester.

[Function and effect of device]

Usually, the radiator has a strong cooling air intake action for cooling the engine.

By this suction action and the like, outside air is sucked while being filtered from the outside air suction port (17) in the form of a filter mesh. The sucked outside air after filtration flows into an intake cylinder (5) provided inside the engine cover (3). The outside air that has flowed into the intake pipe (5) is branched into two outflow paths, one of which is a main flow to the radiator (4) and the other is a side flow to the intake port (7) of the air cleaner (6). Supplied.

The outside air supplied to the radiator (4) cools the circulating cooling water in the radiator (4) to keep the engine (2) at an appropriate temperature.

The outside air supplied to the air cleaner (6) is filtered again by the filtering action of the air cleaner (6) to become clean air. As a result, cleaner air can be supplied to the engine (2) and the combustion state of the engine (2) can be maintained in a good condition.

The air cleaner (6) is arranged outside the engine cover (3). Therefore, the air cleaner (6) can be opened without opening the engine cover (3).
Can be inspected and cleaned, and the work efficiency of the inspection and cleaning can be improved.

As described above, it is possible to stabilize the engine performance.

〔Example〕

An embodiment of the present invention will be described in detail by exemplifying a harvester.

The vehicle body of the harvester has a threshing machine (9) mounted on the front part, an engine (2) mounted on the rear part, and a chassis (1) having left and right traveling devices (8). On the rear side of the engine cover (3) above the engine (2), the control section (1
0) etc. are provided and configured.

On one side of the thresher (9), a fried cylinder (11) for fried the threshered grains is provided in an inclined posture obliquely rearward and upward. Further, below the discharge port (12) at the tip of the fried grain cylinder (11), a bag cradle (13) is provided. The bag receiving base (13) is for placing and supporting the paddy bag when filling the paddy bag with the grains discharged from the discharge port (12). (14) is a culm transfer device, and (21) is an Ina stand.

The control section (10) is operated by turning on / off a running lever for operating and disengaging a traveling clutch transmitted from the engine (2) to the left and right traveling devices (8) and a threshing clutch transmitting for the thresher (9). A threshing lever etc. will be provided.
(15) is a steering wheel.

Engine cover (3) provided above the engine (2)
Is an outside air suction port (1) in which a wind tunnel (16) is formed between the upper and lower covers, and a filter net is stretched near the fried food container (11) on the rear side.
Open 7).

A bottom opening of the engine cover (3) is connected to an upper opening of an intake cylinder (5) for guiding the outside air sucked from the outside air intake port (17) mainly to the radiator (4). . The inside surface opening of the intake cylinder (5) is connected to the intake side of the radiator (4) so that the outside air is guided to the radiator (4) and sucked. The radiator (4) is arranged and provided above the engine (2).

An air cleaner (6) for filtering combustion air of the engine (2) is arranged outside the engine cover (3). Then, the intake port (7) of the air cleaner (6) is connected to a small hole-shaped opening provided on the outer side of the intake cylinder (5) via a seal (19). Reference numeral (18) is a cover that covers the outside of the air cleaner (6) so as to be openable and closable. (20) is a window provided for cleaning the inside of the intake cylinder (5).

Then, when the engine (2) is started and the threshing machine (9) is transmitted to supply the cutting grain culm on the rice storage table (21), the cutting grain culm is threshed by the threshing machine (9). It is processed. Then, the grain is fried by the fried cylinder (11), discharged from the discharge port (12) and filled in the paddy bag.

On the other hand, by the cooling air suction action of the radiator (4),
The outside air is filtered and sucked through the filter-like outside air inlet (17) so as to remove large straw debris. The sucked outside air passes through the inside of the wind tunnel (16) of the engine cover (3) and flows into the intake cylinder (5) provided inside from the upper surface opening portion thereof.

The outside air that has flowed into the intake cylinder (5) is branched in two directions along the outflow path, and one of the main air flows as a main flow to filter dust by an air filter and is supplied to and sucked into the radiator (4).
The other one is supplied as a sidestream to the intake port (7) of the air cleaner (6).

The outside air supplied to the air cleaner (6) is once filtered by the filter mesh provided in the outside air suction port (17) as described above. Therefore, when filtering again by the air cleaner (6), the amount of dust filtered by the element of the air cleaner (6) is reduced, and the interval between inspection and cleaning of the air cleaner (6) is prolonged. You can Further, the outside air becomes more clean air by filtering again with the element of the air cleaner (6). As a result, cleaner air can be supplied to the engine (2) and the combustion state of the engine (2) can be maintained in a good condition.

The air cleaner (6) is arranged outside the engine cover (3). Therefore, the cover (1
Only by opening 8), the periphery of the air cleaner (6) is widely opened. As a result, the air cleaner (6) can be inspected and cleaned without opening the engine cover (3), and the work efficiency of the inspection and cleaning is improved.

Further, generally, when air is taken in from both sides with respect to a flow of air in one direction, a turbulent flow occurs and a vortex flow is generated in that portion, and the air supply lacks smoothness, often causing noise. .

This device is provided with the intake cylinder (5) in order to prevent such a defect so that the outside air can be reliably separated and supplied to the radiator (4) side and the air cleaner (6) side. It Therefore, there is a feature that eddies and noise are not generated.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a partially cutaway perspective view, FIG. 2 is a partial explanatory plan view, and FIG. 3 is an explanatory perspective view thereof. In the figure, reference numeral (3) is an engine cover, (4) is a radiator, (5) is an intake cylinder, (6) is an air cleaner, and (7).
Is an intake port, and (17) is an outside air intake port.

Claims (1)

[Scope of utility model registration request] 1. An intake cylinder (5) for supplying the outside air sucked from the outside air intake port (17) in two directions inside an engine cover (3) having an outside air intake port (17) in the form of a filter mesh, A radiator (4) is connected to one side of the intake cylinder (5) and an intake port (7) of an air cleaner (6) is connected to the other side thereof, and the air cleaner (6) is connected to the outside of the engine cover (3). An air cleaner for harvesters, etc.