Self-cleaning air filter

An air filter and self-cleaning technology, which is applied in the direction of fuel air filter, combustion air/combustion-air treatment, machine/engine, etc., can solve the problem of automatically cleaning the dust in the air filter that cannot be compressed, and achieves The effect of improving the service life

An air filter and self-cleaning technology, which is applied in the direction of fuel air filter, combustion air/combustion-air treatment, machine/engine, etc., can solve the problem of automatically cleaning the dust in the air filter that cannot be compressed, and achieves The effect of improving the service life

CN111156116APending Publication Date: 2020-05-15ZHEJIANG HAANYO INTELLIGENCE TECH CO LTD
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  • Self-cleaning air filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 , 2 , 3, and 4, a self-cleaning air filter of the present invention includes a housing 1, a closed air chamber 2, a main filter element 3, a safety filter element 4, a pulse valve 5, and a controller 7. The housing is two A cylindrical cylinder with an open end, one end is provided with an air filter outlet 9, the other end is provided with an end cover 10, and the outer ring surface of the shell is provided with an air filter inlet 8; the airtight air chamber 2 is integrated in The housing 1 is used to store compressed air; the outer ring surface of the end cover 10 is arranged with ash discharge holes 11; the ash discharge holes 11 are provided with a one-way valve 6; the main filter element 3 It is an annular filter element, which is arranged in the housing 1 and forms a sealed connection against one end face of the airtight air chamber 2; the safety filter element 4 is arranged on the inside of the main filter element 3 or at the inlet end of the a...

Embodiment 2

[0035] In one embodiment of the present invention, as Figure 5As shown, the electric pumping device is further provided with a filter device 20, specifically, a filter element can be provided at the suction port of the electric pumping device to ensure that the gas inhaled by the electric pumping device is filtered by the filter device to reduce the risk of electric pumping. device wear and tear.

Embodiment 3

[0036] Example 3, such as Figure 6 As shown, the annulus of the airtight chamber 2 is drum-shaped. Since the airtight air chamber is used to store compressed gas, under the action of air pressure, the pressure perpendicular to the inner surface will be formed everywhere in the airtight air chamber, and the airtight air chamber will have a deformation tendency to increase the volume. The drum-shaped design can be used in the structure On the one hand, the volume is maximized, and the tensile stress mainly borne by the material of the airtight chamber is uniformized, which is beneficial to prolonging its service life.

[0037] In one embodiment of the present invention, the airtight chamber 2 is further provided with a sensor or a pressure switch 17 for monitoring the air chamber pressure, wherein the pressure switch is controlled to open or close by the air pressure in the airtight chamber; the sensor Or pressure switch 17, electric pumping device 13, accumulator or generator...

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Abstract

The invention discloses a self-cleaning air filter which comprises a case, a closed air chamber, a main filter element, a safety filter element, a pulse valve and a controller. The self-cleaning air filter is characterized by further comprising an electric air inflating device and a check valve, wherein the electric air inflating device is connected to a vehicle-mounted storage battery or a generator to supply power to the vehicle-mounted storage battery or the generator; an air outlet of the electric air inflating device is connected to the closed air chamber through a guide pipe; the check valve is arranged on the guide pipe connecting the air outlet of the electric air inflating device with the closed air chamber; the check valve has the function of one-way flowing; and the check valveonly allows compressed air to enter the closed air chamber from the air inflating device, but does not allow the compressed air to flow back to the electric air inflating device from the closed air chamber. The self-cleaning air filter is additionally provided with the electric air inflating device so as to provide a reliable air source for vehicles without air sources. Meanwhile, the self-cleaning air filter can accurately control the pressure range, backward blowing time and backward blowing frequency of the compressed air which backward blows the filter element, thereby greatly improving the self-cleaning effect and service life of the filter element.

Description

technical field [0001] The invention relates to a self-cleaning air filter, in particular to a self-cleaning air filter which can provide a stable self-cleaning air source with an electric pumping device. It belongs to the technical field of air filters. Background technique [0002] The air filter is mainly used to filter the dust and impurities in the air, and provide clean air for the internal combustion engine to reduce the wear and tear of the engine. However, construction machinery and construction machinery often work in areas with very serious dust, such as construction sites and mines. The filter element in the air filter will be blocked by dust in a short time, increasing the air intake resistance and fuel consumption of the engine, thus affecting the engine. power output. The current situation is that once the air filter is clogged and the power output drops, the operator can only stop the operation of the equipment, manually open the air filter, remove the air ...

Claims

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Application Information

Patent Timeline
15 May 2020
Publication
CN111156116A
IPC
F02M35/024; F02M35/08
CPC
F02M35/024; F02M35/086
Inventors
杨洪波; 胡伟