Device for installing ELVA valve and ELFI valve of two-stroke low-speed diesel engine

By designing a device that includes a handle, mounting plate, and support plate, the installation deviation problem of ELVA and ELFI valves in two-stroke low-speed diesel engines was solved, achieving precise alignment and efficient installation, and improving installation quality and safety.

CN224274942UActive Publication Date: 2026-05-26HENGLI ENGINE (DALIAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENGLI ENGINE (DALIAN) CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The ELVA and ELFI valves of two-stroke low-speed diesel engines are heavy and bulky, making manual handling and positioning difficult and unstable, resulting in installation deviations and component damage. They are also difficult to operate in confined spaces, making it difficult to achieve precise alignment.

Method used

Design a device that includes a handle, mounting plate, fixing pipe and support plate. Use hoisting equipment to lift the diesel engine, fix the valve body through the fixing pipe, and the worker holds the handle to adjust the position of the valve body by lever principle so that it corresponds to the installation position, and accurately aligns the mounting hole with the support plate.

Benefits of technology

It improves the installation accuracy and efficiency of ELVA and ELFI valves, avoids damage to components from impacts, and simplifies installation operations in confined spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of power systems, and particularly discloses a device for installing an ELVA valve and an ELFI valve of a two-stroke low-speed diesel engine. The device comprises a holding rod, a mounting plate and a fixing pipe, the mounting plate is mounted at the end of the holding rod, and the fixing pipe is mounted on the mounting plate in parallel. One side of the supporting plate is connected with the fixed pipe, and the length of the supporting plate is smaller than that of the fixed pipe. The holding rod comprises a supporting part and holding parts, the ends of the supporting part and the holding parts are mounted on the mounting plate, the holding parts are located on the two sides of the supporting part and integrally formed, and an included angle is formed between the holding parts. According to the device, the installation problem caused by large weight, large size and narrow operation space of the ELVA valve and the ELFI valve can be solved, accurate alignment is achieved, and the installation efficiency and quality are improved.
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Description

Technical Field

[0001] This utility model relates to the field of power system technology, and more particularly to a device for installing ELVA valve and ELFI valve of a two-stroke low-speed diesel engine. Background Technology

[0002] In the field of power systems, two-stroke low-speed diesel engines serve as the core power system for large equipment, and their assembly precision and efficiency directly affect the construction cycle and operational reliability of the equipment. Among them, the ELVA valve and ELFI valve of the MAN series two-stroke diesel engine are core components that realize key functions such as fuel injection and exhaust emission, and their installation quality is crucial to the engine's performance.

[0003] However, due to their functional requirements, ELVA and ELFI valves are designed to be quite heavy and bulky, making them difficult to control stably during manual handling and positioning. This can easily lead to installation deviations due to shaking, or even damage to the components from impacts. According to the main engine assembly process specifications, ELVA and ELFI valves must be installed after the overall diesel engine structure is basically formed. At this point, the engine is surrounded by other components, the working space is narrow, and the range of movement for installers is limited, making precise alignment difficult to achieve using conventional tools. Utility Model Content

[0004] In response to the aforementioned technical problem, an apparatus is provided for installing an ELVA valve and an ELFI valve on a two-stroke low-speed diesel engine.

[0005] The technical means adopted in this utility model are as follows:

[0006] An apparatus for installing ELVA and ELFI valves on a two-stroke low-speed diesel engine includes a handle, a mounting plate, and a fixing tube, wherein the mounting plate is mounted on the end of the handle and the fixing tube is mounted parallel to the mounting plate.

[0007] Furthermore, it also includes a support plate, which is installed parallel to the mounting plate. One side of the support plate is connected to the fixing pipe, and the length of the support plate is less than the length of the fixing pipe.

[0008] Furthermore, the grip bar includes a support portion and a grip portion, the ends of which are mounted on a mounting plate. The grip portion is located on both sides of the support portion and is integrally formed with the support portion. There is an included angle between the grip portion and the support portion.

[0009] Furthermore, the included angle between the gripping part and the supporting part is 90°.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] First, the two-stroke low-speed diesel engine is lifted using hoisting equipment. Then, the fixing pipe is inserted into the fixing holes of the ELVA valve and ELFI valve and fixed with bolts. The worker holds the handle and uses the lever principle to lift the ELVA valve and ELFI valve and align them with the installation position of the diesel engine. The valve body is then inserted into the narrow installation space inside the diesel engine. The worker then performs the installation work. The device of this application can accurately locate the installation hole and provide stable support for the installation, thus improving the installation efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a front view of a device for installing ELVA and ELFI valves in a two-stroke low-speed diesel engine according to the present invention.

[0014] Figure 2 This is a side view of a device for installing ELVA and ELFI valves in a two-stroke low-speed diesel engine according to the present invention.

[0015] Figure 3 This is a top view of a device for installing ELVA and ELFI valves in a two-stroke low-speed diesel engine according to the present invention.

[0016] In the diagram: 1. Handle; 2. Mounting plate; 3. Fixing tube; 4. Support plate; 5. Support part; 6. Handle part. Detailed Implementation

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] like Figure 1-3As shown in the figure, this utility model embodiment discloses a device for installing ELVA and ELFI valves in a two-stroke low-speed diesel engine. The device includes a handle 1, a mounting plate 2, and a fixing tube 3. The mounting plate 2 is installed at the end of the handle 1, and the fixing tube 3 is installed parallel to the mounting plate 2. It also includes a support plate 4, which is installed parallel to the mounting plate 2. One side of the support plate 4 is connected to the fixing tube 3. The length of the support plate 4 is less than the length of the fixing tube 3, thereby increasing the strength of the fixing tube 3. The handle 1 includes a support portion 5 and a gripping portion 6. The ends of both the support portion 5 and the gripping portion 6 are installed on the mounting plate 2. The gripping portion 6 is located on both sides of the support portion 5 and is integrally formed with the support portion 5. There is an angle between the gripping portion 6 and the support portion 5, which is 90°. The gripping portion 6 facilitates the worker's grip and increases the stability of the support portion 5.

[0019] Working Principle: First, use hoisting equipment to lift and fix the two-stroke low-speed diesel engine at a suitable height, ensuring the installation positions of the ELVA and ELFI valves are within easy operating range. Insert the fixing tube 3 of the device into the fixing hole of the ELVA or ELFI valve, and fix the valve body to the fixing tube 3 with bolts. The operator holds the grip part 6 and uses leverage to lift the valve body, adjusting its position to correspond with the installation position of the diesel engine. Slowly insert the valve body into the narrow installation space inside the diesel engine, maintaining the stability of the valve body with the support plate 4, ensuring precise alignment of the mounting holes. Finally, the operator performs bolt tightening and other installation operations to complete the installation of the ELVA or ELFI valve.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for installing an ELVA valve and an ELFI valve on a two-stroke low-speed diesel engine, characterized in that, It includes a grip (1), a mounting plate (2) and a fixing tube (3), wherein the mounting plate (2) is installed at the end of the grip (1) and the fixing tube (3) is installed parallel to the mounting plate (2).

2. The device for installing the ELVA valve and ELFI valve of a two-stroke low-speed diesel engine according to claim 1, characterized in that, It also includes a support plate (4), which is installed parallel to the mounting plate (2). One side of the support plate (4) is connected to the fixing pipe (3), and the length of the support plate (4) is less than the length of the fixing pipe (3).

3. The apparatus for installing the ELVA valve and ELFI valve of a two-stroke low-speed diesel engine according to claim 1, characterized in that, The grip (1) includes a support part (5) and a grip part (6). The ends of the support part (5) and the grip part (6) are both mounted on the mounting plate (2). The grip part (6) is located on both sides of the support part (5) and the grip part (6) is integrally formed with the support part (5). There is an angle between the grip part (6) and the support part (5).

4. The apparatus for installing the ELVA valve and ELFI valve of a two-stroke low-speed diesel engine according to claim 3, characterized in that, The included angle between the gripping part (6) and the supporting part (5) is 90°.