Loader oil bath air cleaner line for increased rear visibility

By using an integrated molded hose on the loader, the clearance opening is eliminated, improving the driver's rear visibility and solving the problem of obstruction of the oil bath air filter pipeline on the loader. This simplifies installation, improves waterproof performance, and reduces intake resistance and material costs.

CN224315088UActive Publication Date: 2026-06-02LONGGONG SHANGHAI MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LONGGONG SHANGHAI MASCH MFG CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing oil bath air filter piping layout for loaders causes serious obstruction of the driver's rear view, complicated installation, rainwater infiltration, and increased intake resistance.

Method used

The integrated molded hose replaces the segmented connection structure. The hose is located inside the engine hood, with its highest point lower than the cab floor. The clearance opening is eliminated. Oil-resistant and high-temperature resistant rubber material is used. The connection end is designed with stepped and arc transitions. The engine air intake and oil bath air filter are connected by a fixing clamp.

Benefits of technology

Increases the driver's rear visibility by 35%, prevents rainwater from seeping in, simplifies installation by 50%, reduces air intake resistance by 15%, and reduces material costs by 20%.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of engineering machinery, disclose a kind of loader oil bath air filter pipeline of increasing driving rear field of view, including integrally formed hose, its one end is communicated with the air outlet of oil bath air filter, another end is communicated with engine air inlet;Integrally formed hose profile is smooth curve, it is set in the inside of bonnet, highest point is lower than driver's cab floor plane.The utility model increases driver rear field of view, simplifies installation process, improves waterproof performance.
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Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery technology, specifically an oil bath type air filter pipeline for a loader, which is particularly suitable for wheel loaders that require improved rear visibility for the driver. Background Technology

[0002] The existing oil bath air filter piping layout of loaders has the following technical defects:

[0003] 1. The piping system is located above the machine cover, using a segmented connection method of rubber hoses and steel pipes:

[0004] 1.1 A dedicated air filter pipe clearance port needs to be installed to allow the pipeline to pass through;

[0005] 1.2 The installation process is complex, requiring multiple connectors and fasteners;

[0006] 1.3 The pipeline is too high, severely obstructing the driver's rear view.

[0007] 2. Rainwater can easily enter the engine compartment through the air filter pipe outlet, affecting equipment reliability;

[0008] 3. The tortuous pipeline route increases intake resistance. Utility Model Content

[0009] The purpose of this invention is to provide a loader oil bath air filter pipeline that increases the driver's rear visibility, simplifies the installation process, and improves waterproof performance.

[0010] To address the aforementioned problems, the present invention provides a loader oil bath air filter pipeline that enhances the driver's rear visibility. The pipeline includes an integrally molded rubber hose, one end of which is connected to the air outlet of the oil bath air filter, and the other end of which is connected to the engine air inlet. The integrally molded rubber hose has a smooth curve outline and is located inside the engine hood, with its highest point lower than the cab floor.

[0011] The one-piece molded hose replaces the segmented connection structure of the existing hose and steel pipe combination, reducing the use of connectors. This not only improves the overall sealing performance, but also reduces the need to fix the connection points of adjacent components during installation, thus improving installation efficiency. In addition, the one-piece molded hose eliminates the existing air filter pipe clearance port, completely preventing rainwater infiltration.

[0012] According to this utility model, the integral molded hose further comprises a first connecting end communicating with the air outlet of the oil bath air filter, a second connecting end communicating with the air inlet of the engine, and a transition section disposed between the two; the first connecting end and the transition section are connected in a stepped manner, the first connecting end is located above the transition section, and the port of the first connecting end faces away from the transition section, the transition section extends horizontally in a direction away from the first connecting end, and the end of this side is connected to the second connecting end in an arc transition.

[0013] The transition section is lower than the first connecting end, reducing its obstruction of the rear field of vision and improving the visibility of the rear field of vision.

[0014] According to this utility model, the two ends of the integral molded hose are connected to the corresponding engine air intake and oil bath air filter by fixing clamps.

[0015] The fixing clamp is easy to operate and has good fastening performance. The use of fixing clamp improves the connection efficiency between the one-piece molded hose and the corresponding engine air intake and oil bath air filter.

[0016] According to this utility model, the integrally molded hose is made of oil-resistant and high-temperature resistant rubber material, with an inner diameter of Φ78mm-82mm and a wall thickness of 4.5mm-5.5mm.

[0017] According to this utility model, the inner diameter of the integral molded hose is Φ80mm and the wall thickness is 5mm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Increased field of vision: After the pipeline is moved down, the driver's blind spot behind the vehicle is reduced by about 35%;

[0020] 2. Improved waterproofing: The design of the recessed opening has been eliminated, completely solving the problem of rainwater seepage;

[0021] 3. Simplified installation and reduced costs: The one-piece molded hose design reduces connection points, reducing installation time by 50%; at the same time, it reduces the use of connectors, reducing material costs by 20%.

[0022] 4. Improved intake efficiency: The one-piece molded hose connects directly to the corresponding engine intake port and oil bath air filter, reducing connection points and optimizing pipeline routing, thus reducing intake resistance by 15%. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a traditional pipeline layout;

[0024] Figure 2 This is a schematic diagram of the overall layout of this utility model;

[0025] Figure 3 A schematic diagram of the integrated hose structure of this utility model.

[0026] In the diagram, 1-oil bath air filter, 2-one-piece molded hose, 3-engine inlet, 4-engine cover, 5-fixing clamp. Detailed Implementation

[0027] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0028] like Figure 2 and Figure 3 As shown, this application embodiment provides a loader oil bath air filter pipeline to increase the driver's rear visibility. Installed on a loader, it is particularly suitable for wheel loaders requiring improved rear visibility. This loader oil bath air filter pipeline includes an integrally molded rubber hose 2, one end of which connects to the air outlet of the oil bath air filter 1, and the other end connects to the engine air intake 3. The integrally molded design of the rubber hose 2 replaces the segmented connection structure of existing rubber hoses and steel pipes, reducing the use of connecting parts. This not only improves overall sealing but also reduces the need to fix the connection points of adjacent components during installation, improving installation efficiency. Furthermore, the integrally molded rubber hose 2 eliminates the existing air filter pipe clearance opening, completely preventing rainwater infiltration. Preferably, the two ends of the integrally molded rubber hose 2 are connected by fixing clamps 5. During installation, only two fixing clamps 5 need to be tightened to complete the connection with the corresponding engine air intake 3 and oil bath air filter 1, improving the connection efficiency of the integrally molded rubber hose 2.

[0029] Furthermore, the one-piece molded hose 2 is arranged inside the engine cover 4, with its highest point lower than the cab floor, reducing obstruction of the rear view.

[0030] In this embodiment, the one-piece molded hose 2 is made of oil-resistant and high-temperature-resistant rubber material, with an inner diameter of Φ78mm-82mm and a wall thickness of 4.5mm-5.5mm. Preferably, the inner diameter is Φ80mm and the wall thickness is 5mm.

[0031] In this embodiment, the integrally molded hose 2 has a first connecting end 21 communicating with the air outlet of the oil bath air filter 1, a second connecting end 22 communicating with the engine air inlet 3, and a transition section 23 disposed between the two. The first connecting end 21 and the transition section 23 are connected in a stepped manner. The first connecting end 21 is located above the transition section 23, and the port of the first connecting end 21 faces away from the transition section 23. The transition section 23 extends horizontally away from the first connecting end 21, and the end of this side is connected to the second connecting end 22 in an arc transition, forming an integrally molded hose with a smooth curve outline.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A loader oil bath air filter pipeline for increasing rear visibility, characterized in that, It includes a one-piece molded hose, one end of which is connected to the air outlet of the oil bath air filter, and the other end is connected to the engine air intake. The one-piece molded hose has a smooth curve outline and is set inside the engine hood, with its highest point lower than the cab floor.

2. The loader oil bath air filter pipeline for increasing rear visibility as described in claim 1, characterized in that, The integral molded hose has a first connecting end that communicates with the air outlet of the oil bath air filter, a second connecting end that communicates with the air inlet of the engine, and a transition section disposed between the two; the first connecting end and the transition section are connected in a stepped manner, the first connecting end is located above the transition section, and the port of the first connecting end faces away from the transition section, the transition section extends horizontally in a direction away from the first connecting end, and the end of this side is connected to the second connecting end in an arc transition.

3. The loader oil bath air filter pipeline for increasing rear visibility as described in claim 1, characterized in that, The two ends of the one-piece molded hose are connected to the corresponding engine air intake and oil bath air filter by fixing clamps.

4. The loader oil bath air filter pipeline for increasing rear visibility as described in claim 1, characterized in that, The one-piece molded hose is made of oil-resistant and high-temperature resistant rubber material, with an inner diameter of Φ78mm-82mm and a wall thickness of 4.5mm-5.5mm.

5. The loader oil bath air filter pipeline for increasing rear visibility as described in claim 4, characterized in that, The one-piece molded hose has an inner diameter of Φ80mm and a wall thickness of 5mm.