JPS62240462A - Cooling device for engine - Google Patents

Abstract

PURPOSE:To effectively maintain the function of a carburetor by jetting the air supplied from a cooling fan towards the outer periphery of a carburetor from the nozzle part of a fan chamber, thus reducing the adhesion of dusts onto the carburetor. CONSTITUTION:A nozzle 5 for jetting a portion of the cooling air supplied from a fan chamber 3 in which a cooling fan 3 for an engine 1 is installed is installed towards the outer peripheral part of the carburetor 2 of the engine 1. The cooling fan 3 is revolved by the drive of the engine 1, and the engine 1 body part is cooled by the cooling air, and at the same time, a portion of the cooing air is jetted onto the outer peripheral part of the carburetor 4 from the nozzle part 5. Therefore, the carburetor 4 is cooled, and at the same time, the dusts, etc. which adhere onto the carburetor 4 are splashed off, preventing the sucking of the dusts, etc. into the carburetor 4. Therefore, the carburetor 2 can effectively maintain the function, and the engine 1 can develop the always stable output performance.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an engine cooling device, and can be used as an engine cooling device mounted on a combine harvester, a binder, a harvester, etc.

Conventional technology Conventionally, a device cools the main body of an engine using compressed air sent from a fan chamber equipped with a cooling fan.
The configuration did not include a device for blowing a portion of this pressure air onto the outer peripheral portion of the carburetor of the engine to cool it.

Problems to be Solved by the Invention For example, an engine installed in a harvester is not capable of transporting grain culms that have been naturally dried by adding water in the field, or husks that have been left to dry naturally in the field, to the harvester. The rotation of the engine of the lever harvester rotates the threshing device of this harvester, and the threshing device threshes the husk, and when the distance to transport the husk becomes long, the harvester is made to travel. In this type of harvester, which transports the grain culm and repeats the threshing process, it is necessary to thresh the shell culm without running it during this operation. In such cases, the engine's carburetor reaches a high temperature, and this high temperature can cause the engine's output performance to drop, and the fine gaps in the carburetor can cause dust and dirt generated during threshing to escape. The dust is inhaled, and each part of the +iA engine is damaged by the inhaled dust and dust. This wear caused the engine to malfunction.

In order to solve the problem, the L-stage invention has a fan chamber (4) in which the cooling fan (3) of the engine (1) is housed, facing the outer periphery of the carburetor (2) of the engine (1). The engine cooling device is provided with a nozzle (5) that blows a part of the pressure air sent from the engine.

Operation and Effect of the Invention When the engine (1) is driven, the fan chamber (4) in which the cooling fan (3) of the engine (1) is installed is moved from the fan chamber (4) by the rotation of the cooling fan (3). At the same time, the main body of the engine (1) is cooled by the pressure air sent from the fan chamber (4).
) from the nozzle (5) part communicating with the carburetor (4) to cool the carburetor (4) at the same time,
Dust and sand adhering to the vaporizer (4) are blown away to prevent the dust and sand from being sucked into the vaporizer (4).

The air generated by the rotating cooling fan (3) is blown from the nozzle (5) of the fan chamber (4) toward the outer periphery of the carburetor (2). The adsorption and adhesion of dust to the vaporizer (2) can be reduced, and the function of the vaporizer (2) can be made to work effectively.

Example Note that the illustrated example describes an embodiment of a harvester.

The harvester (6) is a traveling transmission system that includes a traveling device (8) that carries an endless track (1) on both left and right sides of the lower side of the traveling vehicle body (7), and a transmission mechanism that rotationally drives this traveling device flff (8). In this configuration, the case (9) is provided in a state that projects above the traveling vehicle body (7).

The running vehicle body (7) is equipped with an engine (1) and an operation handle (lO) on the rear side, and a threshing device (11) for threshing the shell culm and a shell culm on the front side. The configuration includes a culm stand (12) that supplies the threshing device 2!1 (11), and the rotation of the engine (1) causes the transmission mechanism in the traveling transmission case (9) to Equipment (11
) etc. are configured to be rotated by operating the respective operating levers of a box-shaped operating device (13) provided on the operating handle (10).

The engine (1) has a piston etc. built into the main body,
A fan chamber (4) containing a cooling fan (3) for cooling the main body with pressure air is provided on the outer circumferential surface of the main body, and an air intake cover (10) is provided on the outside of this fan chamber (4) to cover the air intake. A starter pulley (15) is housed inside the cover (14), and an air cleaner (t
e), a carburetor (2), a muffler (17), etc. are provided, a nozzle (5) is provided on the side of the fan chamber (4), and a part of the pressure air sent from the fan chamber (4) is provided. part of the nozzle (
5) blowing air toward the outer periphery of the vaporizer (2);
At the same time as cooling this vaporizer (2) with this blast,
This vaporizer (2) is configured to remove dust and sand particles that adhere to the vaporizer (2).

The threshing rack fi1'1 (11) consists of left and right side frames, a front frame, and an upper frame, and the left and right side frames are provided with a supply port for supplying shell culms and a discharge culm 11 for discharging waste culms. For this supply, the culm stand (12), which communicates with the summer, is provided on the side of the threshing device (1+) at a folded angle of 1°, and the front frame is provided with a passage port through which the grain culm passes. A transfer ch 7 (1B) and a clamping rod (18) are provided on the upper F side of this passage 11, a threshing chamber (20) is provided in the upper part between the left and right side frames, and a threshing chamber (20) is provided in the upper part of the left and right side frames. The handling cylinder (21) is equipped with handling teeth (21) on the outer peripheral surface
22) is rotatably supported on a shaft, and the lower periphery of the handle 6k (21) has a leakage area where the threshed grains and some of the straw waste generated during the threshing process leak. Lower net (23)
A swinging sorting shelf (24) and a blower (25) to be driven are installed on the side of this leakage screen (23), and the threshing is completed by this swinging sorting shelf (24) and a feeding machine (25). It is configured to separate and sort grains and straw waste, and below the swing sorting shelf (24) there is a grain collection gutter (24) equipped with a transfer spiral that collects the sorted grains and transfers them to one side. 26), and a grain lifting mold 21 (27) is provided at the terminal end of this grain collection gutter (26), and this grain lifting mold 21
In (27), the sorted grains are fried and discharged outside the machine.

A suction SqS device (2B) is installed on the front side of the threshing device (11).
A dust suction blade is installed inside the dust suction device 21 (28) to collect straw waste and this! that are discharged from the threshing chamber (20) into the dust suction device (28). 21r (separate and sort the grains and grains with branches and stalks that are mixed in the inside of the machine in this dust suction device (28), and the straw waste is sent out of the machine by the dust suction blade, and the grains and grains with branches and stalks that are attached fall out) Then, the dust is returned to the threshing chamber (20) by a second reducing device (28) provided at the bottom of the dust suction device (28) and processed again.

When threshing shell culms that have been hung on rice trees in the field to dry naturally, or grain culms that have been left to dry naturally in the field, the starter pulley (15) is used to start the engine (1). Start the harvester (6) and operate the operating lever of the operating type 27 (+3) to run this harvester (6) along the rice trees, or run it along the left grain culm and stop, and remove the husks. Transport it and load it on the culm placement stand (12LJ-).
Threshing device i from this culm stand (12)! t (11) between the transfer ch. 7 (18) and the clamping rod (19), and this supply shell culm is connected between the transfer ch. 7 (18) and the clamping rod (19).
and the threshing chamber (20) in the threshing mold m (11).
While the inside is being transferred, the threshing process is carried out by the handling teeth (21) of the handling cylinder (22), and the threshed waste culm is discharged from the machine through the culm opening and discharged into the field.

The threshed grains and some of the straw waste generated during the threshing process are leaked through the screen (23) and placed on the swing sorting shelf (23).
4) It is supplied to J- and separated into grains and straw waste while being oscillated and transferred on this oscillating sorting rack (24). The grains are sorted and air-selected by the wind generated by the blower (25) while falling from the swinging sorting shelf (24), and the air-selected grains are sent to the grain collection gutter (2).
6) is fed into the grain collecting trough (2B) by a transfer spiral in this grain collecting trough (2B), is transferred and discharged into the grain lifting device (27), and is lifted by this grain lifting mold (27). The grain is crushed and discharged outside the machine.

The straw waste generated during the threshing process is supplied from the threshing room (20) into the dust suction device i'l (2B), and the wind-selected straw waste is also supplied into the suction IIB device (28), and these straw wastes are Debris is sucked out by the rotating drive of the dust suction blade (28) of the suction 1" I device, and is discharged outside the machine, and also mixed into the straw bag. Grain and ramus-attached grains are removed by the dust suction The grains are separated and sorted in the device (28) and fall, and are returned to the threshing chamber (20) in the second reduction mold 21 (23) where they are processed 11 times.

During this threshing operation, the engine (1) operates in the fan chamber (
4) The engine (
At the same time as the main body of (1) is cooled, the fan chamber (4)
A part of the pressure air sent from the fan chamber (4) is blown from the nozzle (5) to the outer periphery of the carburetor (2),
The vaporizer (2) is cooled by this blast, and at the same time, it blows away the dust and grit generated during threshing that tends to adhere to the vaporizer (2). Prevents dust from adhering.

During threshing of the shell culm in the +11i harvester (6), the carburetor (2) of the +m engine (1) receives a portion of the pressure air sent from the fan chamber (4) into the carburetor. This vaporization is caused by the air being blown toward the outer periphery of (2).
The temperature of the vaporizer (
Since dust and sand 1/)I will not adhere to 2),
This engine (1) can always exhibit stable output performance.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a side view of a portion of the harvester, and FIG. 3 is a side view of the entire harvester. In the figure, code (1) is the engine, (2) is the carburetor, and (3)
indicates a cooling fan, (4) indicates a fan chamber, and (5) indicates a nozzle.

Claims (1)

[Claims] A nozzle ( 5)
An engine cooling system equipped with