SU946599A1

SU946599A1 - Self-cleaning filter

Info

Publication number: SU946599A1
Application number: SU803226862A
Authority: SU
Inventors: Вадим Алексеевич Шкаренко; Рудольф Александрович Дьяков; Владимир Леонидович Усаченко
Original assignee: Центральный научно-исследовательский дизельный институт
Priority date: 1980-12-29
Filing date: 1980-12-29
Publication date: 1982-07-30

Description

(54) СЛМООЧИП1АЮЩИЙСЯ ФИЛЬТР(54) SLIM-CLEARING FILTER

Изобретение относитс к фильтрованию , в частности к самоочиад щимс фильтрам дл очистки топлива и масла в двигател х внутреннего сгорани .The invention relates to filtration, in particular, to self-cleaning filters for cleaning fuel and oil in internal combustion engines.

Известен самоочищающийс фильтр, содержащий корпус с патрубками входа и выхода фильтруемой жидкости, фильтрующий элемент, внутри которого установлено устройство дл регенерации . Устройство дл регенерации состоит ;из вращающегос башмака, прилегающего к внутренней цилиндрической поверхности фильтрующего элемента и св занного с источником повышенного давлени жидкости. Очистка фильтрующего элемента от загр знений, производитс жидкостью, подаваемой под давлением к вращающемус башмаку СИ.A self-cleaning filter is known, comprising a housing with inlets and outlets of the filtered liquid, a filter element within which a regeneration device is installed. A device for regeneration consists of a rotating shoe adjacent to the inner cylindrical surface of the filter element and connected to a source of elevated fluid pressure. The cleaning of the filter element from contamination is performed by pressurized fluid to the rotating shoe SI.

Недостатком указанного фильтра вл етс то, что дл самоочистки фильтрующего элемента, необходимо иметь посторонний источник повышенного давлени , например, насос подачи жидкости и подвижному башмаку устройства дл регенерации.The disadvantage of this filter is that for self-cleaning of the filter element, it is necessary to have an external source of increased pressure, for example, a fluid supply pump and a movable shoe of the regeneration device.

Известен также самоочищающийс фильтр, содержащий корпус, с патрубками входа и выхода фильтруемой жидкости, фильтps oI lий элемент и уст-.A self-cleaning filter is also known, comprising a housing, with inlet and outlet nozzles for the liquid to be filtered, filters, an element and a device.

ройство дл регенерации, выполненное в виде цилиндрического корпуса и снабженное кулачковым валом и подпружиненными поршн ми-золотниками. Очистка фильтрующего элемента осуществл етс за счет перемещени поршней-золотников в радиальном направлении с помощью кулачкового вала С23.regeneration device, made in the form of a cylindrical body and equipped with a camshaft and spring-loaded pistons. The filtering element is cleaned by moving the piston-spools in the radial direction with the help of a cam shaft C23.

10ten

Недостатком известной конструкции вл етс мала эффективность регенерации, вызванна малым расходом жидкости, идущей на промывку фильтра, который определ етс величиной хода поршней-золотников.A disadvantage of the known construction is the low regeneration efficiency, caused by the low flow rate of the fluid that is used to flush the filter, which is determined by the stroke of the piston-spools.

Цель изобретени - повышение эф-. фективности регенерации.The purpose of the invention is to increase the efficiency. regeneration efficiency.

Указанна цель достигаетс тем, что в известном самоочищающемс This goal is achieved by the fact that in a known self-cleaning

20 фильтре, содержащем корпус с патрубками входа и выхода фильтруемой жидкости, фильтрующий элемент и устройство дл регенерации с приводным валом, устройство дл регенерации 20 filter comprising a housing with nozzles of the inlet and outlet of the filtered fluid, the filter element and the device for regeneration with a drive shaft, a device for regeneration

25 выполнено в виде цилиндра с днищем, крыржой и радиальными выступами на внутренней боковой поверхности, внутри которого размещен неподвижный вал и установленные на нем 25 is made in the form of a cylinder with a bottom, a wing and radial protrusions on the inner side surface, inside of which there is a fixed shaft and mounted on it

Claims

30 movably radial vanes, and the drive shaft is provided with a gripper mounted on it, which interacts alternately with the blades, while the gripper is mounted on the shaft with the possibility of axial movement. Fig. 1 shows a self-cleaning filter, a general view; in fig. 2 shows section A-A in FIG. 1. The filter consists of a housing 1 with an inlet 2 and an outlet 3 with nozzles, a filter box 4, a filtering element 5, a device for regeneration consisting of a cylinder b, a bottom 7, a rotating top cover 8, a stationary shaft 9, radial blades 10, a sealing insert 11, spring 12, drive shaft 13, gripper 14, ratchet 15, springs 16. Cylinder 6 has protrusions 17, grooves 18 and channels 19, in the bottom 7 there are channels 20. Radial blades 10 have clamps 21, springs 22 and then Coils 23. In the filter element 5 there are channels 24. Capture 14 has a protrusion 25. Self-cleaning filter tr works as follows. Filtered fluid, such as oil or fuel in the engine, through the inlet 2 enters inside the housing 1 and, having passed through the filter element 5, through channels 24 and 19 enters the device for regeneration, from where it passes through channel 20 to the outlet nozzle 3 and through it out of the filter. In this case, the regeneration device is inoperative, since the vanes 10 by the springs 12 are attached to the protrusions 17 located on the inner surface of the regeneration device case. The fixators 21 are inserted into the grooves 18 located in the cylinder 6 of the regeneration device. As the filter element 5 becomes soiled and the pressure differential on it increases, a special relay for a given pressure drop (not shown) activates a device for regeneration, and the rotation of the drive shaft 13 and the gripper 14 and the upper cover 8 connected with it begin. The gripper 14 presses the pusher 23, which moves the latch 21 and leads it out of the groove 18, thereby freeing one of the vanes 10. The gripper 14 abruptly moves the blade 10 to the stationary blade 10, while the rotating blade 10 closes the channel 20, and weight The volume of fluid enclosed between these vanes 10, through channels 19 and 24, is used to wash the filter element 5. As it rotates, the gripper 14 under the action of the spring 16 by the protrusion 25 slides along the protrusion of the ratchet 15 which causes it to rise, upwards. At this moment, when the movable blade 10 approaches the channel 19, the gripper 14 moves to the uppermost position and disengages the movable blade 10, which under the action of the spring 12 slowly moves to its original position, without disturbing the main filtering process. After the grip 14 reaches its extreme upper position, it is sharply lowered down by the action of the spring 16, the protrusion 25 of the grip 14 moves into the groove of the ratchet 15 and it moves to the next stationary blade 10, then presses the pusher 23, removes the retainer 21 18 and dramatically shifts the next blade to the next stationary fixed blade, while there is a similar process of cleaning the next section of the filter. Deposits that are washed away from the outer surface of the filter element 5 are accumulated in the dirt collector 4, from where they are removed as it is filled. The intensity of self-cleaning can be controlled by the frequency of rotation of the gripping mechanism (the speed of approaching one blade to another). The proposed self-cleaning filter design, as compared to the known one, increases the efficiency of the regeneration process, since in it the volume of liquid going to reverse flow is 3-4. times the volume of liquid going n washing known filter. Claims of the invention A self-cleaning filter comprising a housing with inlets and outlets of the filtered fluid, a filter element and a regeneration device with a drive shaft, characterized in that, in order to improve the efficiency of the regeneration of the filter element, the regeneration device is designed as a cylinder with a bottom, a cap and radial protrusions on the inner side surface, inside which there is a stationary shaft and radially mounted blades that are movably mounted on it, and the drive shaft is equipped with a clamping member mounted on it the atom interacting alternately with the blades, while the capture is set on the shaft with the possibility of axial movement. Sources of information taken into account in examination 1, Patent CIUA No. 3168467, cl. 210108, 1967.

2. USSR author's certificate for application number 279.3610 / 23-26, 07.16.79.