Diesel engine supercharger
By using a combination structure of threaded inner shell, annular magnet, and metal filter screen in the diesel engine turbocharger, the problem of insufficient filter media precision in traditional diesel engine turbochargers is solved, achieving the effects of impurity interception and quick disassembly and assembly, thus improving the stability and convenience of the turbocharger.
Patent Information
- Application Number
- CN202520560324.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Traditional diesel engine turbochargers have limited filter media precision, making it difficult to effectively intercept small impurities. Especially under high load and harsh operating conditions, the engine oil deteriorates rapidly, affecting turbocharger performance.
The inner shell is installed using a threaded connection. Inside the inner shell, a combination of a ring magnet and a metal filter screen adsorbs ferromagnetic wear debris and intercepts particulate impurities. Combined with a differential pressure sensor and a buzzer to indicate when to replace, it enables quick disassembly and assembly.
It effectively prevents impurities from entering the turbocharger, ensuring the stability of turbocharging operation. It is also easy and quick to disassemble and assemble without changing the oil pipeline structure, and has strong compatibility.
Smart Images

Figure CN223894256U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to turbocharger technical field, concretely is a diesel engine turbocharger. BACKGROUND
[0002] Turbocharger, especially diesel engine turbocharger, as the key component of promoting the performance of internal combustion engine, plays a vital role in the development history of diesel engine. With the wide application of diesel engine, how to further improve its power, economy and emission performance becomes the focus of the industry. Turbocharging technology, by increasing the air density and pressure entering the cylinder of diesel engine, becomes an effective means to achieve this goal.
[0003] Traditional turbocharger relies on the filtering device of the engine main lubrication system, but such device is often far away from the turbocharger, and the filter material precision is limited, which is difficult to fully intercept small impurities, especially under high load and severe working conditions, oil deterioration accelerates, impurity content increases significantly, which further amplifies the defects of no filtering structure, therefore, a diesel engine turbocharger is proposed. UTILITY MODEL CONTENT
[0004] (I) technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a diesel engine turbocharger to solve the problems in the above background technology.
[0006] (II) technical scheme
[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a diesel engine turbocharger, comprising:
[0008] The upper end of the shell is fixed with an oil inlet shell on one side;
[0009] The inner shell is arranged at the upper end of the oil inlet shell through thread cooperation;
[0010] The annular magnet is arranged at the lower end of the inner shell, and the annular magnet is fixedly connected with the inner shell, the lower end of the annular magnet is fixedly provided with a metal filter screen, and the metal filter screen is fixedly connected with the annular magnet;
[0011] The oil conduit is arranged at the lower end of the inner shell, and the oil conduit is fixedly connected with the inner shell.
[0012] Preferably, the inner end of the inner shell is provided with an inner horizontal rod, and the inner horizontal rod is fixedly connected with the inner shell, so that the disassembly and assembly of the inner shell are convenient and fast.
[0013] Preferably, the inner horizontal rod is provided with a conical shell in the middle, and the conical shell is fixedly connected with the inner horizontal rod, so that the conical shell guides the oil flow through the conical shell, reducing the obstruction to the oil flow.
[0014] Preferably, a buzzer is provided inside the lower end of the conical shell, and the buzzer is fixedly connected to the conical shell. The buzzer is used to emit a buzzing prompt sound.
[0015] Preferably, a first differential pressure sensor is fixedly installed inside the inner shell on the upper side of the annular magnet, and a second differential pressure sensor is fixedly installed on the lower side of the inner oil conduit. The first and second differential pressure sensors are used to detect the pressure difference before and after oil filtration.
[0016] Preferably, a sealing ring is embedded at the lower end of the inner shell, and the sealing ring is fixedly connected to the inner shell, thereby improving the sealing performance between the inner shell and the oil inlet.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, the present invention provides a diesel engine turbocharger, which has the following advantages:
[0019] This invention solves the problems mentioned in the background art by using a threaded connection to install an inner shell inside the oil inlet housing. The annular magnet inside the inner shell attracts ferromagnetic wear debris in the oil, and together with the metal filter screen, intercepts particulate impurities, thereby preventing impurities from entering the turbocharger and affecting the turbocharger operation. Furthermore, the installation method of screwing the inner shell into the oil inlet housing with a threaded connection makes the filter structure easy and quick to install and remove, and it can be installed without changing the oil pipeline structure, thus having strong compatibility. Attached Figure Description
[0020] Figure 1 This is a perspective view of the overall structure of this utility model;
[0021] Figure 2 This is a perspective view of the inner shell and the oil inlet shell of this utility model in a separated state.
[0022] Figure 3 This is a cross-sectional view of the internal structure of the inner shell of this utility model.
[0023] In the diagram: 1. Housing; 2. Oil inlet; 3. Inner housing; 4. Sealing ring; 5. Oil conduit; 6. Inner crossbar; 7. Conical housing; 8. Buzzer; 9. First differential pressure sensor; 10. Ring magnet; 11. Metal filter; 12. Second differential pressure sensor. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] This utility model provides a technical solution, a diesel engine turbocharger; please refer to [link / reference needed]. Figure 1 , Figure 2 and Figure 3 ,include:
[0026] The housing 1 has an oil inlet 2 fixedly installed on one side of its upper end;
[0027] Inner shell 3 is located at the upper end of the inside of oil inlet shell 2 via a threaded connection;
[0028] A ring magnet 10 is disposed at the lower end of the inner shell 3 and is fixedly connected to the inner shell 3. A metal filter screen 11 is fixedly disposed at the lower end of the ring magnet 10 and is fixedly connected to the ring magnet 10.
[0029] Oil conduit 5 is located at the lower end of inner shell 3 and is fixedly connected to inner shell 3;
[0030] The metal filter 11 is made of 300-mesh stainless steel mesh with a pore diameter of approximately 50μm.
[0031] Please see Figure 3 An inner crossbar 6 is provided at the upper part of the inner shell 3, and the inner crossbar 6 is fixedly connected to the inner shell 3. The inner crossbar 6 makes it convenient and quick to disassemble and assemble the inner shell 3.
[0032] Please see Figure 3 A conical shell 7 is provided in the middle of the inner crossbar 6, and the conical shell 7 is fixedly connected to the inner crossbar 6. The conical shell 7 guides the oil through its conical outer shell, reducing the obstruction of the oil flow.
[0033] Please see Figure 3 A buzzer 8 is provided inside the lower end of the cone shell 7, and the buzzer 8 is fixedly connected to the cone shell 7. The buzzer 8 is used to emit a buzzing prompt sound.
[0034] Please see Figure 3 Inside the inner shell 3, a first differential pressure sensor 9 is fixedly installed on one side of the upper part of the annular magnet 10. Inside the oil conduit 5, a second differential pressure sensor 12 is fixedly installed on one side of the lower end. The first differential pressure sensor 9 and the second differential pressure sensor 12 are used to detect the pressure difference before and after oil filtration. The first differential pressure sensor 9 and the second differential pressure sensor 12 can be Omega PX419 series high-precision differential pressure sensors, which support direct power supply from button batteries.
[0035] Please see Figure 1 , Figure 2 and Figure 3 A sealing ring 4 is embedded at the lower end of the inner shell 3, and the sealing ring 4 is fixedly connected to the inner shell 3. The sealing ring 4 improves the sealing between the inner shell 3 and the oil inlet shell 2.
[0036] This solution involves inserting the inner shell 3 into the oil inlet shell 2, inserting fingers into the inner shell 3 to pinch the inner crossbar 6, and rotating the inner crossbar 6 to rotate the inner shell 3. Through the threaded connection, the inner shell 3 is installed inside the oil inlet shell 2. As the inner shell 3 moves, the sealing ring 4 is clamped by the inner shell 3 and the oil inlet shell 2, filling the gap between the inner shell 3 and the oil inlet shell 2 and improving the sealing performance. Subsequently, the oil pipeline is connected to the oil inlet shell 2, and the oil enters the inner shell 3 and passes through the annular magnet 10. Ferromagnetic debris in the oil is attracted by the annular magnet 10, and the metal filter 11 intercepts particulate impurities in the oil. At the same time, the first differential pressure sensor 9 and the second differential pressure sensor 12 monitor the oil pressure changes before and after passing through the metal filter 11. When the pressure difference exceeds the set threshold, the buzzer 8 sounds, indicating that the metal filter 11 has intercepted too many particulate impurities and needs to be cleaned or replaced.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A diesel engine turbocharger, characterized in that, include: A housing (1), wherein an oil inlet (2) is fixedly provided on one side of the upper end of the housing (1); The inner shell (3) is located at the upper end of the inside of the oil inlet shell (2) through a threaded connection; A ring magnet (10) is disposed at the lower end of the inner shell (3), and the ring magnet (10) is fixedly connected to the inner shell (3). A metal filter screen (11) is fixedly disposed at the lower end of the ring magnet (10), and the metal filter screen (11) is fixedly connected to the ring magnet (10). An oil conduit (5) is located at the lower end of the inner shell (3) and is fixedly connected to the inner shell (3).
2. A diesel engine turbocharger according to claim 1, characterized in that: An inner crossbar (6) is provided at the upper end of the inner shell (3), and the inner crossbar (6) is fixedly connected to the inner shell (3).
3. A diesel engine turbocharger according to claim 2, characterized in that: A conical shell (7) is provided in the middle of the inner crossbar (6), and the conical shell (7) is fixedly connected to the inner crossbar (6).
4. A diesel engine turbocharger according to claim 3, characterized in that: A buzzer (8) is provided inside the lower end of the cone shell (7), and the buzzer (8) is fixedly connected to the cone shell (7).
5. A diesel engine turbocharger according to claim 4, characterized in that: The inner shell (3) is fixedly provided with a first differential pressure sensor (9) on the upper side of the annular magnet (10), and the oil conduit (5) is fixedly provided with a second differential pressure sensor (12) on the lower side of the inner shell (3).
6. A diesel engine turbocharger according to claim 5, characterized in that: The lower end of the inner shell (3) is provided with a sealing ring (4), and the sealing ring (4) is fixedly connected to the inner shell (3).