SU1421890A1 - Fuel filter of vehicle internal combustion engine - Google Patents

Description

(21) 4073538 / 31-26

(22) 03/25/86

(46) 09/07/88. Bran, ff 33

(71) Scientific and Production Association of Space Research under the Academy of Sciences of the AzSSR

(72) L.G.Lbdullaev, A.I.Nadzhafov, Sh.B.Azizov and N.A. Adzhiyska

(53) 66.067.34 (088.8)

(56) USSR author's certificate

No. 1139471, cl. B 01 D 29/28, 1982.

(54) INTERNAL COMBUSTION TRANSPORT ENGINE FUEL FILTER (57) The invention relates to the purification of liquids from solid inclusions, in particular to the filtration of fuel used on internal combustion transport engines. The goal is to increase the reliability of the filter by simplifying the design. The filter contains a cylindrical body 1 with nozzles 2 and 3 of the inlet and outlet

YU

§ (L

17

four

cf f

fuel and filter element made in the form of a piston 4 installed in the housing with the possibility of reciprocating motion. The piston 4 is made of glass fiber filter material placed between the layers of cotton filter material. Torr1

The invention relates to the purification of liquids from solid inclusions, in particular to the filtration of fuel used on internal combustion transport engines.

The purpose of the invention is to increase the reliability of the filter by simplifying the design.

FIG. 1 shows the proposed fuel filter, a longitudinal section; FIG. 2 is a spatial image of filter details; FIG. 3. - coupling for attaching the filter to the vehicle body.

The filter contains a hollow cylindrical body 1 with nozzles for supplying 2 and removing 3 fuel and filtering elements made in the form of a piston 4 mounted in the body 1 with the possibility of reciprocating movement. The housing 1 in the lower part has a conical settling chamber 5 with a drain plug 6, the chamber 5 is equipped with reflectors 7 and is separated from the housing 1 by a net disk 8. Spacing rings 9 are spaced between the reflectors 7 and the net disk 8. On the upper part of the body 1 is screwed on the cap 10. The piston 4 is made of glass fiber filter material 11 located between the layers 12 of cotton filter material, which are fixed by pressure washers 13. On the front sides, the piston 4 is spring-loaded to the body 1 by springs 14. Elements 15, in complements as washers, are used to increase the inertia of the action of the piston 4. The lower member 15 is welded mesh

16 pre-cleaning. Clutch

17 serves to attach the filter to the vehicle body.

The two sides. The piston 4 is spring-loaded to the housing 1 by the springs 14. The elements 15, made in the form of washers, serve to increase the inertia measure of the piston 4 and, therefore, stabilize the filtering conditions. 2 hp f-ly, 3 ill.

The filter works as follows. .

Through pipe 2, the fuel enters the filter, passes through filter element 5 and is discharged through pipe 3. Large mechanical particles under the action of gravity are deposited in a conical settling chamber 5. Reflectors 7 and a mesh disk In prep f

return of precipitated particles to

the volume between the mesh disk 8 and the piston 4. The bottom layer 12 of cotton filter material is one of the cleaning stages of the top 5 Lebanon, and the top layer serves to prevent the fibers of the filter material 11 from entering the cleaned fuel. Under the action of external disturbances (vibrations transmitted from the engine block and the car), the parts located between the springs 14 begin to vibrate, which ensures the regeneration of filter materials. Elements 15 align the clock and the amplitude of the vibrations of the piston 4 AND ;. therefore, stabilize the operation of the filter. The implementation of a piston 4 of glass fiber material permits reliable sealing of the cavity of the cleaned fuel from the cavity of the filtered fuel.

The transmission of vibrations of the car body and the engine body to the filter element ensures its regeneration without the use of a special vibrator, which simplifies the design of the filter, enhances the reliability of its operation, simplifies the technology of its manufacture and reduces its cost.

0For1 ula invention

Claims (3)

1. Fuel filter for internal combustion engine, containing a cylindrical body with fuel inlet and outlet nozzles with a conical settling chamber, having a drain plug and a filter element installed in the body with a possibility of returnable movement, which in order to improve the reliability of the filter operation by simplifying the design, the filter element on the front side is equipped with washers and is spring-loaded to the body. 2. The filter according to claim 1, characterized in that the filtering element is made of fiberglass filtering material disposed between the layers of cotton filtering material, 3. The filter according to claim 1, characterized in that the conical settling chamber is provided with reflectors and is separated from the body by a mesh disk. (rig, g .З