AIR INTAKE OF AGRICULTURAL WHEELED TRACTOR

Abstract

This utility model pertains to agricultural engineering, specifically to the air supply system for the engine of a wheeled agricultural tractor. The objective of this utility model is to reduce the size of the air supply system and the number of components required, while maintaining its functionality and the ability to fit under the engine compartment of the vehicle.In order to achieve the specified technical result, a dust collecting device, a nipple for connecting a dust removal system, a nipple for removing moisture entering the air intake are introduced into the air intake, which contains an air duct and an air intake socket, the dust collecting device is designed in the form of a multi-cyclone pre-cleaner, the dust collecting device is configured to pre-clean air from large mechanical contaminants, the air intake socket is configured to supply atmospheric air to the dust collecting device, which is connected through the first nipple to the dust removal system from the dust collecting device and further, through the air duct, is configured to supply air to the air filter of the tractor, the second nipple is installed at the lower point of the air duct and is configured to remove moisture entering the air intake.The technical result consists of reducing the dimensions of the air supply system, as well as reducing the number of components included in its composition, while maintaining functionality and the ability to be placed in the engine compartment of the car.

Description

[0001] The utility model relates to the field of agricultural engineering, namely to the air supply system for the engine of an agricultural wheeled tractor.

[0002] A fuel and air cleaning system for the 2001 AWD "RSM 2405" agricultural wheeled tractor is known to be installed [https: / / agrosnab-zip.ru / catalog / versatayl, p. 132, accessed October 22, 2024]. The presented fuel and air cleaning system is located outside the engine compartment. Air is drawn in through an air intake located near the exhaust pipe at the level of the tractor roof. The air is then directed through an air duct to an air filter combined with a pre-cleaner, mounted outside the engine compartment on the machine's wheel fender.

[0003] The installation of a fuel and air cleaning system for agricultural tractors of the 9R / RT series from Deere&Company is known [https: / / agrosnab-zip.ru / product / traktory / katalog-john-deere-9430, (9430 35 - Air and fuel tank.html), accessed on 01.05.2024]. The presented fuel and air cleaning system is located outside the engine compartment. Air enters the engine unit through the air intake, which is a perforated cylinder located near the exhaust pipe at the level of the tractor roof. Then, the air is directed through the air duct pipe to the air filter, combined with a pre-cleaner and installed outside the engine compartment on the wheel fender of the machine.

[0004] The closest to the declared utility model is the power supply and air purification system of agricultural tractors of the Magnum series manufactured by Case IH [Equipment catalog https: / / www.autoopt.ru / auto / catalog / tractor / case_ih / mx_255_magnum_2568 / 6?view=details-right, access date - 02 / 10 / 2025]. The presented system consists of two air ducts, an air filter combined with a pre-cleaner, as well as a dust removal system from the pre-cleaner, which includes an ejector, a check valve that prevents exhaust gases from entering the air line, and sleeves. The unit is located in the engine compartment of the vehicle; air enters the air supply and cleaning system through ventilation openings in the tractor hood and is fed through air ducts to the air filter with a pre-cleaner, where large mechanical particles (contaminants) are separated and removed through the dust removal system from the pre-cleaner.

[0005] The main drawback of the first two systems presented is the significant size of the fuel and air purification systems, as well as the impossibility of installing them under the tractor's hood. Furthermore, placing the air filter and air intake pipe on the tractor's wheel fender reduces visibility from the driver's seat.

[0006] The main drawback of the prototype is the significant dimensions of the power supply and air purification system, as well as the significant number of components that solve the problem of placing the unit in the engine compartment of the tractor.

[0007] The objective of the utility model is to reduce the dimensions of the air supply system, as well as to reduce the number of components included in its composition, while maintaining functionality and the possibility of placement in the engine compartment of the car.

[0008] To achieve the specified technical result, a dust collecting device, a nipple for connecting a dust removal system, a nipple for removing moisture entering the air intake are introduced into the air intake, which contains an air duct and an air intake socket, the dust collecting device is designed in the form of a multi-cyclone pre-cleaner, the dust collecting device is configured to pre-clean air from large mechanical contaminants, the air intake socket is configured to supply atmospheric air to the dust collecting device, which is connected through the first nipple to the dust removal system from the dust collecting device and further, through the air duct, is configured to supply air to the air filter of the tractor, the second nipple is installed at the lower point of the air duct and is configured to remove moisture entering the air intake.

[0009] The air intake is shown in the figure and includes the following design elements: 1 - air intake; 2 - a dust collecting device in the form of a multi-cyclone pre-cleaner; 3 - a housing that functions as an air duct; 4 - a drain nipple; 5 - a cyclone device; 6 - a cyclone device body; 7 - a collecting hopper; 8 - a nipple for connecting the dust removal system; 9 - a nozzle, while in the multi-cyclone pre-cleaner, preliminary air cleaning from large mechanical impurities is performed; it consists of a number of cyclone devices 5, including a cyclone device body 6, a collecting hopper 7 and nozzles 9.

[0010] The utility model operates as follows. Atmospheric air enters the air intake through air intake 1 and is then fed to a multi-cyclone pre-cleaner 2, where it is pre-cleaned of large mechanical contaminants. It is then fed to housing 3, which functions as an air duct, and then to the tractor's air filter (not shown). Separation of large mechanical impurities occurs in a multi-cyclone type pre-cleaner 2 due to the action of centrifugal forces arising during the passage of swirling cyclone devices 5, each of which consists of a cyclone device body 6, a collecting bin 7 and a nozzle 9. Under the action of centrifugal forces, dust particles are thrown towards the cyclone device body 6 and then, under the action of gravity, fall into the collecting bin 7, from where, in turn, they are removed through a nozzle 8, which is connected to the dust removal system from the pre-cleaner (not shown in the figure).Cleaned air exits through nozzle 9, concentrically mounted in the lower part of the cyclone body (6). Moisture entering the air intake is removed through drain fitting 4, located at the lowest point of the air intake.

[0011] The technical result consists in reducing the dimensions of the air supply system, as well as in reducing the number of components included in its composition, while maintaining functionality and the possibility of placement in the engine compartment of the car.

Claims

An air intake of an agricultural wheeled tractor comprising an air duct and an air intake bell, characterized in that a dust collecting device, a nipple for connecting a dust removal system, a nipple for removing moisture entering the air intake are introduced into it, the dust collecting device is designed in the form of a multi-cyclone pre-cleaner, the dust collecting device is designed with the possibility of preliminary cleaning of air from large mechanical contaminants, the air intake bell is designed with the possibility of feeding atmospheric air into the dust collecting device, which is connected through the first nipple to the dust removal system from the dust collecting device and further, along the air duct, is designed with the possibility of feeding air into the air filter of the tractor, the second nipple is installed at the lower point of the air duct and is designed with the possibility of removing moisture entering the air intake.

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