A pump body for an oil pump in a diesel internal combustion engine

Abstract

This utility model provides an oil pump body for a diesel internal combustion engine, relating to the technical field of oil pump bodies. It includes a pump body and an armature. The armature is centrally located within the pump body, and a magnet is fitted around the outer side of the armature's middle portion. A front fixed plate is located at the front end of the pump body, and a one-way valve is located in the middle of the front part of the front fixed plate. A front connecting sleeve is fixed to the front part of the inner sidewall of the pump body, and a first sliding groove is provided on the front part of the inner side of the front connecting sleeve, while a second sliding groove is provided on the rear part of the inner sidewall of the front connecting sleeve. A middle slider and a front slider are provided on the front part of the outer ring of the armature. The middle slider is rotatably connected to the first sliding groove, and the front slider is rotatably connected to the second sliding groove. This utility model ensures that both the front and rear parts of the internal armature are rotatably connected to the front and rear connecting sleeves, respectively, achieving front-to-back balance during high-speed rotation. This results in smoother and more stable operation of the internal structure, strengthens the pump body casing, and provides safety, explosion-proof protection, and robust reliability.

Description

Technical Field

[0001] This utility model relates to the field of oil pump body technology, specifically to an oil pump body for a diesel internal combustion engine. Background Technology

[0002] The high-pressure oil pump body is mainly used in the high-pressure common rail fuel injection system of diesel engines. High-pressure common rail injection technology refers to a fuel supply method that completely separates the generation of injection pressure and the injection process from each other in a closed-loop system composed of a high-pressure oil pump, pressure sensor and electronic control unit. It is one of the core components of the diesel engine electronic injection system.

[0003] In the specification of a high-pressure oil pump body for a diesel engine with good sealing performance (publication number CN215890280U), it is mentioned that "a pump cover is fixedly installed on one side of the upper part of the oil pump body, and studs are movably inserted on both sides of the inner side of the pump cover; threaded grooves are opened on both sides of the inner side of the oil pump body; a plunger component is fixedly installed inside the oil pump body; a plunger spring is fixedly installed outside the plunger component; a sealing block is fixedly installed on the upper part of the oil pump body; a sealing plate is fixedly installed inside the pump cover; and a buffer spring is fixedly connected to the outside of the sealing plate." The plunger component has a plunger oil chamber fixedly installed above it, and an oil slinger pipe fixedly installed on one side of the plunger oil chamber. A sealing ring is fixedly connected to the outside of the plunger oil chamber, and an oil slinger hole is fixedly installed on one side of the sealing ring. A leak-blocking pipe is fixedly installed inside the sealing ring, and an oil delivery pipe is fixedly installed at one end of the sealing ring. An oil pipe joint is fixedly connected to one end of the oil delivery pipe, and a reserve oil tank is fixedly connected to the end of the oil pipe joint. However, in the prior art, the armature inside the pump body may become unbalanced under high-speed operation inside the electromagnetic system, affecting the stability of its rotation, and its use is not safe, stable and reliable. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a pump body for diesel internal combustion engines is provided to solve the problem that the internal armature of the pump body may become unbalanced under high-speed operation within the electromagnetic system, affecting the stability of its rotation and making its use unsafe, unstable and unreliable.

[0005] To achieve the above objectives, a pump body for a diesel internal combustion engine is provided, comprising a pump body and an armature. The armature is centrally located within the pump body, and a magnet is sleeved on the outer side of the armature's middle portion. A front fixed plate is located at the front end of the pump body, and a one-way valve is located in the middle of the front portion of the front fixed plate. A pump sleeve is installed at the rear end of the pump body, and an oil inlet is located at the center of the rear end of the pump body. A front connecting sleeve is fixed to the front of the inner wall of the pump body, and a first sliding groove is provided on the front of the inner side of the front connecting sleeve. A second sliding groove is provided on the rear of the inner wall of the front connecting sleeve. A middle sliding block and a front sliding block are provided on the front of the outer ring face of the armature. The middle sliding block is rotatably connected to the first sliding groove, and the front sliding block is rotatably connected to the second sliding groove. A rear connecting sleeve is located on the rear of the inner wall of the pump body, and a third sliding groove is provided on the inner side of the rear connecting sleeve. A rear sliding block is located on the rear of the outer ring face of the armature, and the rear sliding block is rotatably connected to the third sliding groove.

[0006] Furthermore, a silencer is provided at the front end of the one-way valve, and a diaphragm chamber is provided inside the silencer.

[0007] Furthermore, a safety valve is provided on the upper rear side of the pump body, and a rotor is fitted inside the rear of the pump body.

[0008] Furthermore, the lower part of the one-way valve is connected to an output pipe, and the lower end of the output pipe connected to the one-way valve is provided with an oil outlet.

[0009] Furthermore, the pump body has multiple sets of explosion-proof ribs in the pump casing, and an explosion-proof sleeve is provided on the outside of the pump casing, with anti-slip texture on the outer surface of the explosion-proof sleeve.

[0010] Furthermore, the armature is provided with brushes at the front and a front sleeve is installed at the front end of the armature, and a central shaft is installed at the rear of the armature, with a rear sleeve covering the central shaft.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. The oil inlet and outlet of this utility model are designed to facilitate the delivery of diesel fuel, and also allow for safe control using a one-way valve. Furthermore, it is safe and quiet, making it convenient and practical.

[0013] 2. The explosion-proof ribs and explosion-proof sleeves in this utility model help to strengthen the pump body shell, making it safe, explosion-proof, sturdy, and reliable, while the anti-slip texture provides a safe and anti-slip effect.

[0014] 3. The front and rear sleeve frames provided at the front and rear ends of the armature in this utility model are for accurate and stable internal connection between the armature and the front and rear parts of the pump body, so as to avoid offset or instability at the end connection, making it safer, more stable and reliable to use.

[0015] 4. The front and rear connecting sleeves of this utility model enable the rear slider to rotate in the third slide groove, the middle slider to rotate in the first slide groove, and the front slider to rotate in the second slide groove during high-speed rotation of the armature. This ensures the armature is balanced at both ends during high-speed rotation, resulting in smoother and more stable operation of the internal structure, making it safer, more reliable, and more durable. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a left-side view of an embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the armature structure according to an embodiment of the present invention.

[0020] In the diagram: 1. Pump body; 10. Magnet; 11. Front fixed plate; 12. Check valve; 13. Silencer; 14. Diaphragm chamber; 15. Oil outlet; 16. Pump sleeve; 17. Safety valve; 18. Oil inlet; 19. Rotor; 100. Explosion-proof rib; 101. Explosion-proof sleeve; 102. Anti-slip texture; 2. Armature; 20. Central shaft; 21. Rear sleeve frame; 22. Brush; 23. Front sleeve frame; 24. Rear slider; 25. Middle slider; 26. Front slider; 3. Front connecting sleeve; 30. First slide groove; 31. Second slide groove; 4. Rear connecting sleeve; 40. Third slide groove. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2This is a left-side view diagram of an embodiment of the present utility model. Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model and Figure 4 This is a schematic diagram of the armature structure according to an embodiment of the present invention.

[0024] Reference Figures 1 to 4 As shown, this utility model provides an oil pump body for a diesel internal combustion engine, including a pump body 1 and an armature 2. The armature 2 is disposed in the center of the pump body 1, and a magnet 10 is sleeved on the outer side of the middle part of the armature 2. A front fixing plate 11 is disposed at the front end of the pump body 1, and a one-way valve 12 is disposed in the middle of the front part of the front fixing plate 11. A pump sleeve 16 is installed in the rear part of the pump body 1, and an oil inlet 18 is disposed in the center of the rear end of the pump body 1.

[0025] In this embodiment, a silencer 13 is provided at the front end of the one-way valve 12, and a diaphragm chamber 14 is provided inside the silencer 13; a safety valve 17 is provided on the upper rear side of the pump body 1, and a rotor 19 is sleeved inside the rear of the pump body 1; an output pipe is connected to the lower part of the one-way valve 12, and an oil outlet 15 is provided at the lower end of the output pipe connected to the one-way valve 12.

[0026] As a preferred embodiment, the oil inlet 18 and oil outlet 15 in this utility model facilitate the delivery and discharge of diesel fuel, and also allow for safe control using a one-way valve, while ensuring safety and noise reduction, making it convenient and practical.

[0027] In this embodiment, the pump body 1 has multiple sets of explosion-proof ribs 100 in the pump casing, and the pump body 1 has an explosion-proof sleeve 101 on the outside of the pump casing, and the outer surface of the explosion-proof sleeve 101 has anti-slip textures 102.

[0028] As a preferred embodiment, the explosion-proof ribs 100 and explosion-proof sleeves 101 in this utility model help to strengthen the pump body shell, making it safe, explosion-proof, sturdy, and reliable, while the anti-slip textures 102 provide a safe and anti-slip effect.

[0029] In this embodiment, a brush 22 is provided at the front of the armature 2, a front sleeve 23 is installed at the front end of the armature 2, a central shaft 20 is installed at the rear of the armature 2, and a rear sleeve 21 is fitted over the central shaft 20.

[0030] As a preferred embodiment, the front sleeve frame 23 and the rear sleeve frame 21 provided at the front and rear ends of the armature 2 in this utility model are for accurate and stable internal connection between the armature 2 and the front and rear parts of the pump body 1, so as to avoid the offset or instability at the end connection, and make the use safer, more stable and reliable.

[0031] In this embodiment, a front connecting sleeve 3 is fixed to the front part of the inner sidewall of the pump body 1, and a first sliding groove 30 is provided on the front part of the inner side surface of the front connecting sleeve 3. A second sliding groove 31 is provided on the rear part of the inner sidewall of the front connecting sleeve 3. A middle sliding block 25 and a front sliding block 26 are provided on the front part of the outer ring face of the armature 2. The middle sliding block 25 is rotatably connected to the first sliding groove 30, and the front sliding block 26 is rotatably connected to the second sliding groove 31. A rear connecting sleeve 4 is provided on the rear part of the inner sidewall of the pump body 1, and a third sliding groove 40 is provided on the inner side surface of the rear connecting sleeve 4. A rear sliding block 24 is provided on the rear part of the outer ring face of the armature 2. The rear sliding block 24 is rotatably connected to the third sliding groove 40.

[0032] As a preferred embodiment, the front connecting sleeve 3 and the rear connecting sleeve 4 of this utility model enable the rear slider 24 to rotate in the third slide groove 40, the middle slider 25 to rotate in the first slide groove 30, and the front slider 26 to rotate in the second slide groove 31 during the high-speed rotation of the armature 2. This ensures the armature 2 is balanced front and rear during high-speed rotation, resulting in smoother and more stable operation of the internal structure, making it safer, more reliable, and more durable.

[0033] This invention effectively solves the problem in the prior art that the internal armature of the pump body may become unbalanced under high-speed operation within the electromagnetic system, affecting its rotational stability and making it unsafe and unreliable. In this invention, the front and rear parts of the internal armature are respectively connected to the front and rear connecting sleeves, ensuring front-to-back balance during high-speed rotation. This results in smoother and more stable operation of the internal structure, and also strengthens the pump body shell, making it safe, explosion-proof, sturdy, and reliable.

[0034] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A pump body for a diesel engine oil pump, characterized by: The pump body includes a pump body (1) and an armature (2). The armature (2) is located at the center of the pump body (1), and a magnet (10) is sleeved on the outer side of the middle part of the armature (2). A front fixing plate (11) is located at the front end of the pump body (1), and a one-way valve (12) is located in the middle of the front part of the front fixing plate (11). A pump sleeve (16) is installed at the rear part of the pump body (1), and an oil inlet (18) is located at the center of the rear end of the pump body (1). A front connecting sleeve (3) is fixed at the front part of the inner side wall of the pump body (1), and a first sliding groove (30) is located at the front part of the inner side surface of the front connecting sleeve (3). The inner side wall of the sleeve (3) is provided with a second sliding groove (31), and the outer ring face of the armature (2) is provided with a middle sliding block (25) and a front sliding block (26). The middle sliding block (25) is rotatably connected to the first sliding groove (30), and the front sliding block (26) is rotatably connected to the second sliding groove (31). The inner side wall of the pump body (1) is provided with a rear connecting sleeve (4), and the inner side of the rear connecting sleeve (4) is provided with a third sliding groove (40). The outer ring face of the armature (2) is provided with a rear sliding block (24), and the rear sliding block (24) is rotatably connected to the third sliding groove (40).

2. A diesel engine oil pump body according to claim 1, wherein The front end of the one-way valve (12) is provided with a silencer (13), and the silencer (13) is provided with a diaphragm chamber (14).

3. A diesel engine oil pump body according to claim 1, wherein A safety valve (17) is provided on the upper rear side of the pump body (1), and a rotor (19) is fitted inside the rear of the pump body (1).

4. The oil pump body for a diesel internal combustion engine according to claim 1, characterized in that, The lower part of the one-way valve (12) is connected to an output pipe, and the lower end of the output pipe connected to the one-way valve (12) is provided with an oil outlet (15).

5. The oil pump body for a diesel internal combustion engine according to claim 1, characterized in that, The pump body (1) has multiple sets of explosion-proof ribs (100) in the pump casing, and an explosion-proof sleeve (101) is provided on the outside of the pump casing of the pump body (1), and the outer surface of the explosion-proof sleeve (101) is provided with anti-slip texture (102).

6. The oil pump body for a diesel internal combustion engine according to claim 1, characterized in that, The armature (2) is provided with a brush (22) at the front, and a front sleeve (23) is installed at the front end of the armature (2), and a central shaft (20) is installed at the rear end of the armature (2), and a rear sleeve (21) is fitted over the central shaft (20).

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