A pre-filter integrated air cleaner assembly

Abstract

The utility model relates to a kind of air filter assembly of prefilter integration, purpose is under the premise of not affecting the intake flow of engine, develop a compact structure, volume reduction and can improve the air filter and the filter integration of air prefilter integration assembly of one structure.Integrating including cyclone pipe type prefilter and air filter, prefilter is installed in air filter right side front end position, prefilter lower end welding dust valve interface (17), prefilter lower shell is equipped with engine intake connection (16), prefilter intake windward face section is rectangle, air filter part is composed of double main filter core (11), double safety filter core (12) and shell assembly (9), from right to left sequentially arranged.The utility model has realized improvement in space utilization, filtration efficiency, satisfies more use scene demand.

Description

Technical Field

[0001] This utility model relates to an air filter, specifically to an integrated pre-filter air filter assembly. Background Technology

[0002] Due to the special requirements of the chassis components and wading depth requirements of special vehicles, the air filter needs to be positioned high. Therefore, the intake system uses a cylindrical air filter assembly 4 + a cyclone pre-filter 1, which is fixed together by connecting pipes 2 and clamps 3. Since the air filter is generally located behind the cab, and with the compression of space in the superstructure, the space behind the cab is becoming increasingly compact. This structure requires a relatively large space (length × width × height = 885 × 406 × 602 = 0.2m). 3 (and the airflow is only 1700m), 3 The airflow is insufficient to meet the intake requirements of current high-horsepower engines, creating difficulties in terms of layout space. For example... Figure 1 As shown.

[0003] Meanwhile, special vehicles often operate in areas with heavy dust and severe pollution. The existing air filter structure (5-layer housing + single main filter + 6-layer safety filter) is insufficient for their filtration efficiency, thus requiring air filters with higher filtration efficiency. For example... Figure 2 As shown. Utility Model Content

[0004] The purpose of this invention is to develop an integrated air filter and pre-filter assembly that integrates the air filter and pre-filter, with a compact structure, reduced size, and improved filtration efficiency, without affecting the engine's intake airflow.

[0005] This utility model is achieved through the following technical solution:

[0006] An integrated pre-filter air filter assembly includes a cyclone pre-filter and an air filter. The pre-filter is installed at the front right side of the air filter and is connected to the air filter housing assembly 9 by a sealing ring and a welded nut, washer 13, and bolt 14. A dust discharge valve interface 17 is welded to the lower end of the pre-filter. The lower housing of the pre-filter has an engine air intake connection port 16, and an alarm sensor interface 15 is welded to the air intake connection port 16. The air intake frontal surface of the pre-filter has a rectangular cross-section. The air filter part consists of dual main filter elements 11, dual safety filter elements 12, and housing assembly 9, arranged sequentially from right to left. Each filter element of the dual main filter elements 11 and dual safety filter elements 12 is an elliptical cylindrical body, which is stacked on the filter element connecting plate 18.

[0007] The filter element connecting plate 18 is made of Q235 steel plate by stamping.

[0008] This invention improves space utilization and filtration efficiency, meeting the needs of more application scenarios. Attached Figure Description

[0009] Figure 1 Traditional air filter assembly + cyclone pre-filter;

[0010] Figure 2 Traditional air filter structure diagram;

[0011] Figure 3 Structural diagram of this utility model;

[0012] Figure 4 Modify the frontal cross-sectional view;

[0013] Figure 5 Revised cross-sectional view of the windward side;

[0014] Figure 6 Dual main filter element and safety filter element installation diagram Detailed Implementation

[0015] like Figure 3 As shown, this utility model is an integrated pre-filter air filter assembly. Through optimized structural design, a cyclone tube type pre-filter 12 and an air filter housing assembly 9 are integrated into one unit (length × width × height = 593 × 508 × 426 mm = 0.12 m). 3 The air filter assembly is a variable cross-section cuboid pre-filter integrated unit. The pre-filter is installed at the front right side of the air filter and is connected to the air filter housing assembly 9 by a sealing ring and a welded nut, washer 13, and bolt 14. A dust discharge valve interface 17 is welded to the lower end of the pre-filter. The air filter consists of dual main filter elements 11, dual safety filter elements 12, and housing assembly 9, arranged from right to left. The lower housing of the pre-filter has an engine air intake connection port 16, and an alarm sensor interface 15 is welded to the air intake connection port.

[0016] Air filter flow rate is directly proportional to air intake area. This invention reduces the overall size while changing the pre-filter from a circular shape to a rectangular shape with a variable cross-section, increasing the air intake area from [Π(d / 2)]. 2 =(208 / 2) 2 ×3.14=0.0339m 2 The result becomes length × width = 0.369 × 0.346 = 0.1276m. 2 To achieve an intake airflow of 1700m³ 3 / h becomes 2200m 3 / h. For example... Figure 4 , 5 As shown.

[0017] Each of the dual main filter element 11 and dual safety filter element 10 is an elliptical cylindrical body, stacked one on top of the other on the filter element connecting plate 18. This structure ensures that the additional filter element components in a traditional air filter assembly achieve improved filtration efficiency through staged filtration. The dual main filter element 11 and dual safety filter element 10 are pressed onto the air filter assembly via the filter element connecting plate on the housing. The filter element connecting plate 18 is made of Q235 steel plate by stamping. Figure 6 As shown.

[0018] When the vehicle is equipped with a 550-horsepower engine, after reliability testing, the filtration efficiency is increased from 99.5% to 99.9%, meeting the engine's requirements and achieving the goal of removing dust and some moisture from the air.

[0019] Table 1 shows a comparison between this utility model and a conventional air filter:

[0020] Table 1 Comparison of Air Filters

[0021]

[0022] The comparison shows that:

[0023] 1. Space utilization rate decreased by 0.08m 3 This is beneficial for the overall vehicle layout;

[0024] 2. The rated airflow of the air filter is increased by 500m³ / h. 3 / h, which can better match the needs of high-horsepower engines;

[0025] 3. The dual main filter element and dual safety filter element improve the filtration efficiency from 99.5% to 99.9% through staged filtration.

Claims

1. An integrated pre-filter air filter assembly, characterized in that: It includes a cyclone pre-filter and an air filter. The pre-filter is installed at the front right side of the air filter. The dust discharge valve interface (17) is welded to the lower end of the pre-filter. The lower shell of the pre-filter is provided with an engine air intake connection port (16). The air intake windward surface of the pre-filter has a rectangular cross section. The air filter part consists of dual main filter elements (11), dual safety filter elements (12) and a housing assembly (9), arranged from right to left.

2. The air filter assembly with integrated pre-filtration according to claim 1, characterized in that: The pre-filter is connected to the air filter housing assembly (9) via a sealing ring, a welded nut, a washer (13), and a bolt (14).

3. The air filter assembly with integrated pre-filtration according to claim 1, characterized in that: An alarm sensor interface (15) is welded onto the air intake connection port (16).

4. The air filter assembly with integrated pre-filtration according to claim 1, characterized in that: Each of the dual main filter element (11) and dual safety filter element (10) is an elliptical cylindrical body, which is stacked on the filter element connecting plate (18).

5. The air filter assembly with integrated pre-filtration according to claim 1, characterized in that: The filter element connecting plate (18) is formed by stamping Q235 steel plate.

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