Split oil sump assembly for outboard motor

Abstract

This invention relates to a split-type oil pan assembly for outboard motors, comprising a load-bearing plate, a shock absorber, an oil suction pipe, a shock absorber cover, a sealing strip, an oil pan, and a sealing gasket. The load-bearing plate integrates an oil inlet channel, an oil return channel, and multiple mounting holes for mounting a shifting mechanism, a tray, and a shock absorber, and is equipped with stiffening ribs to enhance structural strength. The oil pan and load-bearing plate are separately configured and connected by a sealing gasket, achieving separation of oil storage and load-bearing functions. This invention achieves modularization of the oil pan's oil storage and load-bearing functions by designing a split design for the traditional one-piece oil pan. The oil pan structure responsible for oil storage can be made simpler and lighter, while the load-bearing part can adopt a multi-ribbed structure with better rigidity and higher-strength materials. This improves reliability, reduces maintenance costs, and ensures design and manufacturing flexibility.

Description

Technical Field

[0001] This invention belongs to the field of internal combustion engine technology, specifically relating to a split-type oil pan assembly for outboard motors. Background Technology

[0002] To achieve propulsion on the outside of the hull, outboard motors require components such as gear shifters, pylons, and trays. Due to the complex structure of the engine cylinder head and engine block, and the numerous mounting components, it is very difficult to additionally accommodate these components. In contrast, the oil pan has a simpler structure, making it more reasonable to mount the gear shifters, pylons, and trays on it. However, the oil pan not only needs to store oil but also bear the external loads from the outboard motor pylons, gear shifters, and trays, making a traditional one-piece oil pan design complex.

[0003] Therefore, the oil pan is designed in two parts, modularizing its oil storage and load-bearing functions. The oil pan structure responsible for oil storage can be made simpler and lighter, while the load-bearing part can use a more rigid multi-ribbed plate structure and higher-strength materials. This improves reliability, reduces maintenance costs, and provides flexibility in design and manufacturing processes. Summary of the Invention

[0004] This invention provides a split-type oil pan assembly for outboard motors. While ensuring the oil pan assembly's collection and storage functions, it significantly improves the design and manufacturability of the oil pan assembly and enhances the reliability of the components.

[0005] To solve the above technical problems, the present invention provides 1. a split-type oil pan assembly for outboard engines, characterized in that it comprises: Load-bearing plates are used to support external loads and integrate oil passages; The oil pan, which is separate from the load-bearing plate, is used to store engine oil. The load-bearing plate and the oil pan are sealed together by a gasket.

[0006] Furthermore, the load-bearing plate is provided with an oil inlet channel and an oil return channel, which are used for the input and return of engine oil, respectively.

[0007] Furthermore, a shifting mechanism, a tray, and a shock absorber are installed on the load-bearing plate.

[0008] Furthermore, the load-bearing plate is provided with a stiffening plate structure to enhance its load-bearing capacity.

[0009] Furthermore, it also includes an oil suction pipe, which is installed on the support plate and extends into the oil pan for drawing in engine oil.

[0010] Furthermore, it also includes shock absorbers, which are mounted on the load-bearing plate and connected to the outboard motor rack.

[0011] Furthermore, it also includes a shock absorber cover plate, which covers the shock absorber and has a sealing strip between it and the load-bearing plate.

[0012] Furthermore, the oil pan is a one-piece molded structure with an oil storage tank inside.

[0013] Furthermore, the load-bearing plate is directly connected to the machine body to support the machine body and transmit loads.

[0014] Furthermore, the load-bearing plate and the oil pan are made of different materials; the load-bearing plate is made of a high-strength material, and the oil pan is made of a lightweight material.

[0015] Beneficial effects: This invention achieves functional modularization by separating the traditional one-piece oil pan into an oil storage structure and a load-bearing structure, thereby improving structural strength and reliability and reducing manufacturing and maintenance costs.

[0016] This invention significantly improves the manufacturability, maintainability, and reliability of the structure while ensuring the oil storage and circulation functions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a split-type oil pan assembly used in outboard motors.

[0018] Figure 2 , Figure 3 This is a schematic diagram of the load-bearing plate.

[0019] Figure 4 This is a schematic diagram of the oil pan's shape.

[0020] Figure 5 It is a schematic diagram of the installation of the gear shifter, hanger, tray, and machine body. Detailed Implementation

[0021] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below.

[0022] This invention proposes a split-type oil pan assembly for outboard engines, comprising: a shock absorber cover 1, a sealing strip 2, a load-bearing plate 3, a shock absorber 4, an oil suction pipe 5, a sealing gasket 6, and an oil pan 7, as shown. Figure 1 The shock absorber cover 1, shock absorber 4, and oil suction pipe 5 are bolted to the load-bearing plate 3. A sealing strip 2 is installed on the shock absorber cover 1 and the load-bearing plate 3, and a sealing gasket 6 is installed between the load-bearing plate 3 and the oil pan 7 to prevent oil leakage.

[0023] The load-bearing plate 3 is provided with tray mounting holes 8, shift mechanism mounting holes 9, shock absorber mounting holes 10, oil inlet channel 11, and oil return channel 12, such as Figure 2It is equipped with an oil suction pipe mounting hole 13, an oil pan connection hole 14, and a reinforcing rib 15, such as Figure 3 As shown. The load-bearing plate 3 is equipped with numerous stiffening ribs 15 to ensure its strength and improve reliability. The oil pan 7 is equipped with an oil reservoir 16 and connecting holes 17, as shown. Figure 4 As shown. The machine body 18, tray 19, oil pan 7, and shift mechanism 21 are mounted on the load-bearing plate 3. The shock absorber 4 is connected to the bracket 20 as follows. Figure 5 As shown.

[0024] The engine oil in the crankcase falls into the oil pan through the oil return channel 12 on the support plate 3. The oil suction pipe 5 draws in engine oil from the oil pan, and the engine oil enters the oil pump through the oil inlet channel 11 on the support plate, and then enters the engine body, completing the function of oil collection and storage.

[0025] By adopting a split-type structure design for the oil pan, the design and manufacturability of the oil pan assembly are significantly improved while ensuring its collection and storage functions, thereby enhancing the reliability of the components.

[0026] This invention achieves modularization of the oil pan's oil storage and load-bearing functions by redesigning the traditional one-piece oil pan into separate sections. The oil pan structure responsible for oil storage can be made simpler and lighter, while the load-bearing section can utilize a more rigid multi-ribbed plate structure made of higher-strength materials. This improves reliability, reduces maintenance costs, and ensures flexibility in design and manufacturing processes.

[0027] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A split-type oil pan assembly for an outboard motor, characterized in that, include: Load-bearing plates are used to support external loads and integrate oil passages; The oil pan, which is separate from the load-bearing plate, is used to store engine oil. The load-bearing plate and the oil pan are sealed together by a gasket.

2. The split-type oil pan assembly according to claim 1, characterized in that, The load-bearing plate is provided with an oil inlet channel and an oil return channel, which are used for the input and return of engine oil, respectively.

3. The split-type oil pan assembly according to claim 1, characterized in that, The load-bearing plate is equipped with a shifting mechanism, a tray, and a shock absorber.

4. The split-type oil pan assembly according to claim 1, characterized in that, The load-bearing plate is equipped with a stiffening plate structure to enhance its load-bearing capacity.

5. The split-type oil pan assembly according to claim 1, characterized in that, It also includes an oil suction pipe, which is installed on the load-bearing plate and extends into the oil pan for drawing in engine oil.

6. The split-type oil pan assembly according to claim 1, characterized in that, It also includes shock absorbers, which are mounted on the load-bearing plate and connected to the outboard motor rack.

7. The split-type oil pan assembly according to claim 6, characterized in that, It also includes a shock absorber cover plate, which covers the shock absorber and has a sealing strip between it and the load-bearing plate.

8. The split-type oil pan assembly according to claim 1, characterized in that, The oil pan is a one-piece molded structure with an oil storage tank inside.

9. The split-type oil pan assembly according to claim 1, characterized in that, The load-bearing plate is directly connected to the machine body and is used to support the machine body and transfer loads.

10. The split-type oil pan assembly according to any one of claims 1 to 9, characterized in that, The load-bearing plate and the oil pan are made of different materials; the load-bearing plate is made of a high-strength material, while the oil pan is made of a lightweight material.

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