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Multi-level cyclone pipe type engineering machinery air filter

A technology of air filter and construction machinery, applied in the direction of combined air filter and muffler, mechanical equipment, intake muffler, etc., can solve problems such as difficulty in engineering promotion and application, complex structure, etc., and achieve optimal design structure shape, reduce airflow noise, and improve the effect of energy saving and consumption reduction

Active Publication Date: 2015-07-22
JIAXING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Deng Zhaoxiang et al. conducted research on engine intake muffler, and designed a three-cavity parallel side-branch intake muffler based on the principle of the resonance Helmholtz muffler, which was applied to a real vehicle for external acceleration noise experiments, and achieved good noise reduction effects. , but its muffler and filter are set independently, the structure is complicated, and it is difficult to popularize and apply in engineering

Method used

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  • Multi-level cyclone pipe type engineering machinery air filter
  • Multi-level cyclone pipe type engineering machinery air filter
  • Multi-level cyclone pipe type engineering machinery air filter

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Embodiment Construction

[0022] The technical solution of the present invention is described in detail below. The embodiment of the present invention is only for illustrating a specific structure, and the scale of the structure is not limited by the embodiment.

[0023] see figure 1 and figure 2 , a special air filter for multi-stage swirl tube construction machinery according to the present invention, comprising a multi-stage swirl tube air noise reduction device (1), a multi-stage filter (2) and a filter lower end cover (7) . Multi-stage swirl tube air noise reduction device (1), cylindrical structure, including the first return air intake pipe 101, the second return air intake pipe 102 and the first air outlet pipe 103 are arranged on the left half plane, the third return air intake pipe The pipe 104 , the fourth return air intake pipe 105 and the second air outlet pipe 106 are arranged on the right half plane to eliminate the mid-high frequency noise in the external inflow air. The first air ...

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Abstract

The invention discloses a multi-level cyclone pipe type engineering machinery air filter. The number of filter levels is determined by the air intake volume and the air intake efficiency of an engineering machinery engine. Each level of filter is composed of a framework and a filtering material, wherein the porosity of the filtering material is reduced layer by layer from inside to outside, so that filtering layer by layer from large particles to small particles is achieved; the filtering material is composed of a base payer, a resistance layer and a surface layer, and achieves dissipation of energy under broadband random vibration and impact vibration. In order to reduce air intake noise, an air inlet is connected with a silencer. The air inlet of the filter adopts Y-shaped pipelines, the distance between the pipelines is adjusted in a self-adaptive mode according to noise caused by the airflow velocity of an air outlet pipe of the silencer, and therefore control over large-flow high-speed air filtered noise is achieved for the engineering machinery engine.

Description

technical field [0001] The invention relates to an air filter device, in particular to a multi-stage cyclone tube type air filter device for engineering machinery, which has the characteristics of large flow, high speed, low noise and the like. Background technique [0002] The air filter is one of the very important supporting products for construction machinery engines. It protects the engine by filtering out hard dust particles in the air, provides clean air to the engine, prevents engine wear caused by dust, and affects the reliability and durability of the engine. play a key role. The survey shows that under the same conditions of use, for an engine without an air filter, the wear of the piston, cylinder and piston ring is 4 to 10 times that of an air filter. Therefore, installing an air filter is an important way to prevent dust from wearing An effective measure for the engine. According to statistics, 70% of the early damage of engineering machinery engines is relat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/14F02M35/024F02M35/12
Inventor 盛涛胡红生
Owner JIAXING UNIV
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