A new adapter structure suitable for a rotor engine oil pump

Abstract

A new adapter structure suitable for a rotor engine oil pump belongs to the technical field of engine oil lubrication. It is used for solving the problems that the existing rotor engine oil pump has large space occupation, low layout flexibility and is easy to interfere with other parts in the engine cabin under the traditional installation mode. It comprises connecting flange one, connecting flange two and connecting body, the connecting body is arranged between the connecting flange one and the connecting flange two, the connecting flange one is arranged in connection with the oil pan, the connecting flange two is arranged in connection with the oil pump, the connecting body is provided with oil outlet pipeline and oil inlet pipeline, and the two ends of the oil outlet pipeline and the oil inlet pipeline are respectively communicated with the connecting flange one and the connecting flange two. The utility model has remarkable advantages in reducing weight, enhancing structure, improving material durability and optimizing heat dissipation, and establishes the rigid and sealed connection between the oil pump mounting port and the engine oil pan, which is suitable for the engine system with high performance and reliability.

Description

Technical Field

[0001] This utility model belongs to the field of engine oil lubrication technology, and in particular relates to a novel adapter structure suitable for rotary engine oil pumps. Background Technology

[0002] The oil pump adapter is a key component connecting the oil pump and the oil pan. Its core function is to achieve precise matching, reliable sealing, and efficient oil passage connection between the engine block mounting surface and the oil pump mounting surface. Its main function is to construct a stable and sealed oil passage. Currently, the industry standard installation method is to directly mount the oil pump onto the oil pan, typically by fixing the pump body directly to a pre-reserved mounting position on the engine block. This direct-connection design aims to provide robust support for the oil pump through the structural strength of the engine block itself, ensuring a direct and sealed interface between the pump body and the engine block oil passages. However, this traditional structure has several limitations: First, due to insufficient space constraints, the flexibility in the oil pump's installation position and angle is limited. Second, the oil pump is prone to interference with surrounding components within the confined engine compartment, making it difficult to adapt to the diverse requirements of different vehicle models and manufacturers regarding engine compartment layout and assembly processes. Therefore, developing a transition seat structure that can better adapt to the harsh operating conditions of high temperature and high speed of rotary engines, while ensuring structural reliability, and helping to achieve overall engine lightweighting and performance optimization, is of great practical significance. Summary of the Invention

[0003] The purpose of this invention is to provide a novel adapter structure for rotary engine oil pumps, which solves the problems of large space occupation, low layout flexibility, and easy interference with other components in the engine compartment under the traditional installation method of existing rotary engine oil pumps.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A novel adapter structure for a rotary engine oil pump includes a first connecting flange, a second connecting flange, and a connecting body. The connecting body is disposed between the first connecting flange and the second connecting flange. The first connecting flange is connected to an oil pan, and the second connecting flange is connected to the oil pump. An oil outlet pipe and an oil inlet pipe are provided in the connecting body, and the two ends of the oil outlet pipe and the oil inlet pipe are respectively connected to the first connecting flange and the second connecting flange.

[0005] Furthermore, the first connecting flange is provided with an oil outlet hole and an oil inlet hole, the second connecting flange is provided with an oil outlet hole and an oil inlet hole, the two ends of the oil outlet pipe are respectively connected to the first oil outlet hole and the second oil outlet hole, and the two ends of the oil inlet pipe are respectively connected to the second oil inlet hole and the second oil inlet hole.

[0006] Furthermore, the connector is provided with reinforcing ribs.

[0007] Furthermore, the center hole of the second connecting flange is sealed by a base plate, and an oil outlet hole and an oil inlet hole are provided on the base plate.

[0008] Furthermore, the connecting flange is in the form of a flat cover plate, on which an oil outlet hole, an oil inlet hole, and a connecting hole are provided.

[0009] Furthermore, the connecting flange one, connecting flange two, connecting body and reinforcing rib are all made of aluminum alloy and the surface is shot blasted.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model only has two main pipelines, the oil inlet pipeline and the oil return pipeline. Reducing the number of pipelines and connection points means that potential leakage points, vibration fatigue points and failure points are also reduced, further improving the reliability of the system. After the structure is simplified, the accessibility for inspection and maintenance is better and maintenance is more convenient.

[0011] 2. This utility model incorporates reinforcing ribs in key areas to enhance structural performance. This not only improves the rigidity and overall structural stability of the adapter but also enhances its wear resistance, ensuring reliable and durable performance even under long-term high-load conditions.

[0012] 3. This utility model is made of aluminum alloy, a material that is corrosion-resistant and high-temperature resistant. The adapter seat is shot-peened, providing both excellent corrosion resistance and high-temperature tolerance. If a specific grade of corrosion-resistant aluminum alloy (such as 5-series or 6-series) is selected, it inherently possesses certain corrosion and heat resistance. A dense alumina ceramic layer is formed on the inner wall of the pipe through electrolysis. This film is chemically stable and has high hardness, effectively isolating high-temperature engine oil from direct contact with the aluminum substrate. It has a certain degree of resistance to chemical corrosion and oxidation, providing long-lasting protection against the chemical corrosion and oxidation effects of high-temperature engine oil, thus extending the service life of the components.

[0013] 4. This utility model has excellent heat dissipation performance. The aluminum alloy material has good thermal conductivity, which enables the adapter to have efficient heat dissipation capabilities. It can transfer and diffuse some of the heat in the engine oil to the external environment in a timely manner, thereby assisting in the overall cooling of the engine and maintaining the engine oil operating temperature within a reasonable range. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ; Figure 2 This is the front view of this utility model; Figure 3 This is a left view of the present invention; Figure 4 This is a top view of the present invention; Figure 5 This is a cross-sectional view of the present invention.

[0015] Figure 6 This is a schematic diagram of the overall structure of this utility model. Figure 2 ; Figure 7 This is a schematic diagram of the overall structure of this utility model. Figure 3 .

[0016] The component names and reference numerals in the above figures are as follows: 1. Connecting flange one; 2. Connecting flange two; 3. Oil outlet one; 4. Oil inlet one; 5. Connecting body; 6. Reinforcing rib; 7. Oil outlet two; 8. Oil inlet two; 9. Oil outlet pipe; 10. Oil inlet pipe. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0018] Detailed implementation methods: such as Figures 1-5 As shown in the figure, this embodiment discloses a novel adapter structure suitable for a rotary engine oil pump, including a connecting flange 1, a connecting flange 2, and a connecting body 5. The connecting body 5 is disposed between the connecting flange 1 and the connecting flange 2. The connecting flange 1 is connected to the oil pan, and the connecting flange 2 is connected to the oil pump. An oil outlet pipe 9 and an oil inlet pipe 10 are provided in the connecting body 5. The two ends of the oil outlet pipe 9 and the oil inlet pipe 10 are respectively connected to the connecting flange 1 and the connecting flange 2.

[0019] Furthermore, the connecting flange 1 is provided with an oil outlet hole 3 and an oil inlet hole 4, the connecting flange 2 is provided with an oil outlet hole 7 and an oil inlet hole 8, the two ends of the oil outlet pipe 9 are respectively connected to the oil outlet hole 3 and the oil outlet hole 7, and the two ends of the oil inlet pipe 10 are respectively connected to the oil inlet hole 4 and the oil inlet hole 8.

[0020] Furthermore, the connecting body 5 is provided with reinforcing ribs 6.

[0021] Furthermore, the center hole of the connecting flange 2 is sealed by a base plate, and an oil outlet hole 2 7 and an oil inlet hole 2 8 are provided on the base plate.

[0022] Furthermore, the connecting flange 1 is in the form of a flat cover plate, on which an oil outlet hole 3, an oil inlet hole 4, and a connecting hole are provided.

[0023] Furthermore, the connecting flange 1, connecting flange 2, connecting body 5, and reinforcing rib 6 are all made of aluminum alloy and have undergone shot peening treatment.

[0024] The adapter of this utility model has the significant features of being lightweight and compact in structure, while its inner surface has excellent wear resistance, which can reliably adapt to the complex working environment of high speed and high temperature of rotary engine.

[0025] Firstly, in terms of manufacturing processes and material handling, strict control is exercised over the key geometric tolerances and surface quality of the inner and outer surfaces of the adapter to ensure that its flatness, parallelism, and roughness meet high-precision requirements. Specific material treatments are applied to achieve the necessary surface hardness, thereby improving the material's wear resistance. The required specifications are: key geometric tolerances for the inner and outer surfaces are +0.1 and +0.2, respectively; flatness is 0.05; parallelism is 0.08; and roughness is 1.6. Specific material treatments include cleaning and shot peening to obtain a uniform, activated material surface. The required surface hardness is a Rockwell hardness of HRC 65 or higher.

[0026] Secondly, in terms of structural and functional design, the oil inlet and outlet are rationally laid out and designed to construct an efficient and unobstructed oil circulation path, thereby ensuring the stable and reliable operation of the engine lubrication system and realizing the core processes of oil circulation cooling and lubrication.

[0027] Furthermore, in terms of material selection, this invention uses aluminum alloy, a material with excellent comprehensive performance. This material not only possesses good corrosion resistance, high specific strength, and excellent machinability, but also meets the requirements for lightweighting and environmental protection. These material characteristics enable the adapter of this invention to better adapt to the harsh operating conditions of rotary engines at high temperatures and speeds, ensuring structural reliability while contributing to the overall lightweighting and performance optimization of the engine.

[0028] This utility model's adapter has significant advantages in terms of weight reduction, structural enhancement, improved material durability, and optimized heat dissipation, making it suitable for engine systems with high performance and reliability requirements. Its core high-quality metal adapter structure establishes a rigid, sealed connection between the oil pump mounting port and the engine oil pan.

[0029] The adapter of this invention not only serves as a robust support, ensuring precise alignment and reliable sealing of the oil circuit interface, but more importantly, it provides a stable and secure base for the oil pipes that deliver engine oil. This design fundamentally enhances the structural stability of the entire lubrication system piping under dynamic conditions such as engine vibration and thermal load, effectively preventing leakage risks caused by pipe loosening or stress concentration, and ensuring the long-term reliability and safety of the oil circuit. As the core connection hub between the oil pump and the oil pan, it is a key functional component that constitutes a reliable oil circuit for the engine lubrication system, ensures efficient oil circulation, and meets the layout requirements of multiple vehicle models. It can be widely used in various rotary engine models adapted to this design.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel adapter structure suitable for rotary engine oil pumps, characterized in that: It includes a first connecting flange (1), a second connecting flange (2), and a connecting body (5). The connecting body (5) is located between the first connecting flange (1) and the second connecting flange (2). The first connecting flange (1) is connected to the oil pan, and the second connecting flange (2) is connected to the oil pump. An oil outlet pipe (9) and an oil inlet pipe (10) are opened in the connecting body (5). The two ends of the oil outlet pipe (9) and the oil inlet pipe (10) are respectively connected to the first connecting flange (1) and the second connecting flange (2).

2. The novel adapter structure for a rotary engine oil pump according to claim 1, characterized in that: The connecting flange 1 (1) is provided with an oil outlet hole 1 (3) and an oil inlet hole 1 (4), the connecting flange 2 (2) is provided with an oil outlet hole 2 (7) and an oil inlet hole 2 (8), the two ends of the oil outlet pipe (9) are respectively connected to the oil outlet hole 1 (3) and the oil outlet hole 2 (7), and the two ends of the oil inlet pipe (10) are respectively connected to the oil inlet hole 1 (4) and the oil inlet hole 2 (8).

3. A novel adapter structure for a rotary engine oil pump according to claim 2, characterized in that: The connector (5) is provided with reinforcing ribs (6).

4. A novel adapter structure for a rotary engine oil pump according to claim 2, characterized in that: The center hole of the connecting flange 2 (2) is sealed by a base plate, and an oil outlet hole 2 (7) and an oil inlet hole 2 (8) are provided on the base plate.

5. A novel adapter structure for a rotary engine oil pump according to claim 2, characterized in that: The connecting flange (1) is in the form of a flat cover plate, on which an oil outlet hole (3), an oil inlet hole (4) and a connecting hole are provided.

6. A novel adapter structure for a rotary engine oil pump according to claim 3, characterized in that: The connecting flange one (1), connecting flange two (2), connecting body (5) and reinforcing rib (6) are all made of aluminum alloy and the surface is shot blasted.

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