SU1116203A1 - Air cleaner for internal combustion engine - Google Patents

Abstract

AIR CLEANER FOR INTERNAL COMBUSTION ENGINE, comprising a housing with a central cavity and rows of inlets located around it, in which separation elements with flow swirls are placed, a tray with nozzles of the cleaned air outlet, installed coaxially with separation, elements, and a vent tube, made in the pallet, coaxially with the central cavity, which is tricky due to the fact that, in order to increase the cleaning efficiency and increase the time of periodic maintenance by improving the edeleni gas streams and removing dust deposits from areas remote from psheotvod service pipe, in the pallet between the nozzles discharging purified air a screen with openings arranged perpendicular. longitudinal axis of separation -. One of the holes is located opposite the pipe branch, while the others are made concentrically to the branch pipes of the cleaned air outlet and form an annular gap in each row of pipes except for the first internal row, each with the wall of the corresponding pipe.

Description

one

The invention relates to mechanical engineering, engine building, in particular, to devices for cleaning air entering the internal combustion engine.

An air cleaner for an internal combustion engine, containing a housing with a central cavity and inlet openings located around it, in which a separation element with flow swirlers, a sump with cleaned exhaust pipes fitted coaxially with separation elements, and a drain pipe made in the pan coaxially with the central cavity fl.

The disadvantage of such air cleaners is the uneven distribution of dust and gas flows in the sump and separation elements, which is determined by the different distance of the row of separation elements from the dust extraction pipe. This disadvantage leads to a decrease in the efficiency of air purification and the accumulation of dust deposits in the cavity of the pan, which increases the complexity of cleaning the air cleaner during maintenance.

The purpose of the invention is to increase the cleaning efficiency, increase the time period for periodic maintenance by improving the distribution of gas flows and eliminating fluff deposits from areas remote from the dust pipe.

The goal is achieved by the fact that the air cleaner for an internal combustion engine, comprising a housing with a central cavity and spaced rows of inlet openings around it, in which separation elements with flow swirlers are located, underneath with exhaust cleaned air nozzles installed coaxially with separating elements, and a dust removal pipe, made in the pan coaxially with the central cavity, in the bottom between the nozzles of the cleaned air outlet there is a screen with openings located perpendicular to the longitudinal axis of the separation elements, with one of the holes located opposite the dust removal pipe, while the others are concentric with the branch pipes

162032

each with a wall of the corresponding pipe forms an annular gap in all rows of pipes, except for the first internal row.

FIG. 1 shows an air cleaner with a screen, a longitudinal section; in fig. 2 is a section A-A in FIG. 1. The air cleaner contains a core 10 with a central cavity 2 and rows of inlet holes 3 arranged around it, in which the separating elements 4 are placed, with flow swirlers 5. Building 1

15 and a pallet 6 connected to it are installed in the cap 7, and a protective grid 8 and a cover 9 are installed at the air inlet to the housing 1.

20 cleaned air, mounted coaxially with the separation elements 4 5 of a dust extraction pipe 11, are made coaxially with the central cavity 2, and the screen 12 with openings. Screen 12

5 is located perpendicular to the longitudinal axis of the separation elements 4, one hole 13 being placed opposite the pipe outlet 11, and the other holes 14 being made

Q is concentric with the nozzles 10 of the cleaned air outlet and each forms with the wall of the corresponding nozzle 10 an annular gap 15 in all rows of nozzles 10, except for the first internal row. The screen 12 is installed in the pallet 6 using the flanging 16 on the screen and form a dust collection chamber 17 with the pallet 6.

The air cleaner works in the following way.

Under the action of the vacuum created by the engine, the contaminated air enters through the grid 8 into the para 5 paraxial elements 4, passes through the swirlers 5 and acquires a rotational motion. Separated fluff particles under the action of centrifugal forces move to the wall

The separation elements 4 are simultaneously displaced downward along the axis of the element. Pig-gas streams containing separated particles, after exiting the separation elements 4, are transferred to the pipe-separation pipe 11. At the same time, in the separation elements 4 removed from the dust-removing pipe 11 through the annular gaps 15 formed by the holes 14 in the screen 12 and the outer surface of the nozzles 10, except the nozzles located in the first inner row, are assembled in the dust collection chamber 17, from where they move to the dust removal pipe 11. In the separation elements 4 located in the first inner row, dust The streams are moved to the opening 13 in the screen 12, from where they also enter the pipe 11 and are discharged from the air cleaner. The air cleared by separation elements 4 passes through the pipes 10 and from the cap 7 enters the engine intake manifold. With a multiple arrangement of separation elements 4 in the cavity 034 of the pallet 6, a series of screens 12 may be mounted one above the other. At the same time, dust and gas flows from separation elements 4, located in all rows, except the first internal row, pass through the gaps 15 of the corresponding screen 12, and flows from elements 4, located in the first internal row, pass through hole 13, from where through the dust removal pipe 11 is removed from the air cleaner. The proposed design of the air cleaner will allow an increase in the air purification coefficient and the period between the maintenance of the air cleaner.

Claims (1)

AIR CLEANER FOR THE INTERNAL COMBUSTION ENGINE, comprising a housing with a central cavity and inlet openings arranged in rows around it, in which separation elements with flow swirls are placed, a tray with cleaned air exhaust pipes installed coaxially with the separation air. elements, and a dust extraction pipe made in the pan, coaxially with the central cavity, which consists in that, in order to increase the cleaning efficiency and increase the period of periodic maintenance by improving the distribution of gas flows and eliminating dust deposits from zones, remote from the dust removal pipe, a screen with holes is installed in the pan between the cleaned air exhaust pipes located perpendicular to the longitudinal axes of the separation elements, one of the holes being opposite the dust extraction the supply pipe, and the others are made concentrically to the cleaned air exhaust pipes and each form an annular gap with the wall of the corresponding pipe in all rows of pipes, except for the first inner row.