Adjustable hydrofoil assembly
By designing an adjustable hydrofoil assembly and using electric push rods and displacement sensors to achieve real-time adjustment of the hydrofoil plate angle, the problem of poor adaptability of hydrofoil design at different speeds is solved, the sailing speed, fuel economy and maneuverability are improved, and the stability and safety of the ship are enhanced.
Patent Information
- Application Number
- CN202423017419.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing hydrofoil designs have poor adaptability at different speeds, limited hydrodynamic efficiency, and reduced steering flexibility, which affects the ship's acceleration performance, fuel economy, safety, and maneuverability.
An adjustable hydrofoil assembly is designed to achieve real-time adjustment of the hydrofoil angle through an electric push rod and a displacement sensor. Combined with the displacement sensor and the stroke displacement part, the angle of the hydrofoil is automatically adjusted to adapt to changes in the ship's state.
It improves the ship's sailing speed and fuel economy at different speeds, enhances steering flexibility and maneuverability, reduces hull turbulence and structural stress, and improves the ship's stability and safety.
Smart Images

Figure CN223408074U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hydrofoil assembly, in particular to an adjustable hydrofoil assembly. Background Art
[0002] Hydrofoil boats rely on the lift generated by their foils to partially or completely lift the hull off the water, thereby reducing water resistance and increasing speed. Early hydrofoil design ideas were inspired by the principles of aircraft wings, which generate lift through the pressure difference between their upper and lower surfaces. Hydrofoils work in a similar way.
[0003] The existing technology mainly has the following defects:
[0004] 1. Poor adaptability to varying speeds: A hydrofoil vessel's speed constantly changes during travel. A constant hydrofoil angle means the foil's operating state cannot be optimally adjusted at varying speeds. For example, at low speeds, if the hydrofoil angle remains constant, it may not generate sufficient lift to lift the hull, resulting in significant water resistance and impacting the vessel's acceleration and fuel economy. At high speeds, however, a fixed hydrofoil angle may result in excessive lift, placing excessive stress on the hull structure and impacting the vessel's safety and stability.
[0005] 2. Limited hydrodynamic efficiency: The design angle of the hydrofoil has a significant impact on hydrodynamic efficiency. Ideally, the hydrofoil angle should be adjusted in real time based on factors such as the ship's speed, load, and water flow to achieve optimal hydrodynamic efficiency. However, a constant hydrofoil angle cannot achieve this. As a result, the hydrofoil cannot fully utilize the energy of the water flow under certain operating conditions, reducing the ship's propulsion efficiency and increasing energy consumption.
[0006] 3. Reduced steering flexibility: A constant hydrofoil angle can affect a vessel's steering performance. When turning, the hydrofoil needs to generate lateral lift to assist the vessel's steering. However, a fixed hydrofoil angle may not provide sufficient lateral lift, increasing the vessel's turning radius and reducing steering flexibility, impacting the vessel's maneuverability and safety. Utility Model Content
[0007] In response to the deficiencies in the existing technology, the purpose of the present invention is to provide an adjustable hydrofoil assembly with a reasonable structural design, which can adjust the angle of the hydrofoil plate, thereby increasing the sailing speed and fuel economy, improving the maneuverability and reducing the hull bumps.
[0008] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions: an adjustable hydrofoil assembly, including a front hydrofoil fixing cover plate, a front hydrofoil column, a front hydrofoil plate, a cup head hexagonal plug bolt, a hexagonal nut, a first splint nut set, a second splint nut set, a cover and a front hydrofoil top rod, a front hydrofoil fixing cover plate is provided on the top of the front hydrofoil column, a front hydrofoil plate is provided under the front hydrofoil column, the front hydrofoil fixing cover plate is fixed to the upper end of the front hydrofoil column by the cup head hexagonal plug bolt and the hexagonal nut, a cover is provided on the outside of the front hydrofoil fixing cover plate, an electric push rod, a displacement sensor, a displacement sensor mounting bracket and a stroke displacement member are provided inside the front hydrofoil fixing cover plate, the displacement sensor is installed on the displacement sensor mounting bracket, the electric push rod is connected to the front hydrofoil top rod through the stroke displacement member, the lower end of the front hydrofoil top rod is connected to the front hydrofoil plate through the second splint nut set, and the left side of the front hydrofoil column is hinged to the front hydrofoil plate through the first splint nut set.
[0009] Preferably, the front hydrofoil panel is an angle-adjustable hydrofoil panel.
[0010] The utility model has the following beneficial effects:
[0011] 1. Same speed requirements: At low speeds, the hydrofoil angle can be adjusted to generate a certain amount of lift, but not excessively so, allowing the boat to sail smoothly through the water, reducing water resistance while also preventing excessive heaving caused by excessive lift. When the boat accelerates to high speeds, changing the hydrofoil angle can further increase lift, lifting the boat out of the water more efficiently, minimizing frictional resistance on the boat, and improving speed and fuel economy.
[0012] 2. Improve maneuverability: When a ship is turning or making a U-turn, lateral forces in different directions can be generated by changing the angle of the hydrofoil, helping the ship to turn more flexibly.
[0013] 3. Reduce hull bumps: During navigation, the variable hydrofoil angle can be automatically adjusted according to the wave conditions, so that the hull always maintains a relatively stable state, reducing the up and down bumps and left and right shaking of the hull. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments;
[0015] Figure 1 This is the main view of the utility model;
[0016] Figure 2 It is a side view of the utility model;
[0017] Figure 3 A partial cross-sectional view of
[0018] Figure 4 for Figure 3A magnified schematic diagram of part A;
[0019] Figure 5 It is a three-dimensional diagram of the present utility model. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] Reference Figure 1 , this specific embodiment adopts the following technical solution: an adjustable hydrofoil assembly, including a front hydrofoil fixing cover plate 1, a front hydrofoil column 2, a front hydrofoil plate 3, a cup head hexagon socket plug bolt 4, a hexagonal nut 5, a first clamping plate nut set 6, a second clamping plate nut set 7, a cover 8 and a front hydrofoil top rod 9, a front hydrofoil fixing cover plate 1 is provided on the top of the front hydrofoil column 2, a front hydrofoil plate 3 is provided below the front hydrofoil column 2, and the front hydrofoil fixing cover plate 1 is connected to the upper end of the front hydrofoil column 2 through the cup head hexagon socket plug bolt 4 and the hexagonal nut 5. Fixed, a cover 8 is provided on the outside of the front hydrofoil fixed cover plate 1, and an electric push rod 10, a displacement sensor 11, a displacement sensor mounting bracket 12 and a stroke displacement member 13 are provided inside the front hydrofoil fixed cover plate 1. The displacement sensor 11 is installed on the displacement sensor mounting bracket 12, and the electric push rod 10 is connected to the front hydrofoil top rod 9 through the stroke displacement member 13. The lower end of the front hydrofoil top rod 9 is connected to the front hydrofoil plate 3 through the second plywood nut set 7, and the left side of the front hydrofoil column 2 is hinged to the front hydrofoil plate 3 through the first plywood nut set 6.
[0022] It is worth noting that the front hydrofoil panel 3 is an angle-adjustable hydrofoil panel.
[0023] The electric push rod 10 of this specific embodiment is connected to the front hydrofoil top rod 9 through the stroke displacement member 13. When the electric push rod 10 is extended or retracted, it will push or pull the stroke displacement member 13, thereby driving the front hydrofoil top rod 9 to move up and down. The lower end of the front hydrofoil top rod 9 is connected to the front hydrofoil plate 3 through the second clamping plate nut set 7. When the front hydrofoil top rod 9 moves up and down, it will change the angle of the front hydrofoil plate 3 relative to the front hydrofoil column 2. The left side of the front hydrofoil column 2 is hinged to the front hydrofoil plate 3 through the first clamping plate nut set 6. This hinge point allows the front hydrofoil plate 3 to rotate around this point, thereby achieving angle adjustment. The displacement sensor 11 is installed on the displacement sensor mounting bracket 12 to monitor the angle change of the front hydrofoil plate 3. The displacement sensor 11 can provide real-time displacement data to ensure that the telescopic action of the electric push rod 10 accurately controls the angle of the front hydrofoil plate 3.
[0024] The adjustment mechanism in this embodiment automatically adjusts parameters such as the angle and depth of the hydrofoils based on the vessel's state. For example, when the vessel's load changes, sensors detect changes in the hull's draft, and then an electric actuator automatically adjusts the hydrofoils to maintain relatively stable lift and ensure smooth navigation. Furthermore, in rough seas, the mechanism can compensate for the fluctuations caused by waves, maintaining the vessel's stable attitude.
[0025] The adjustable angle hydrofoil of this specific embodiment can adjust the angle according to the driver's habits, experience and specific navigation tasks to meet personalized needs. For example, some experienced drivers may prefer a steeper hydrofoil angle to obtain more flexible maneuverability, while in tasks that require higher stability, such as transporting goods, it may be necessary to adjust to a more stable angle. Improve the adaptability and versatility of ships: ships with adjustable angle hydrofoils can be used in more different waters and environments, whether it is a narrow river channel, shallow water area, or a vast ocean, complex sea conditions, can be adapted by adjusting the hydrofoil angle. Ships with non-adjustable angle hydrofoils have relatively poor adaptability to waters and environments, and may not be able to perform at their best under certain conditions.
[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. An adjustable hydrofoil assembly, characterized in that: The invention comprises a front hydrofoil fixing cover plate (1), a front hydrofoil column (2), a front hydrofoil plate (3), a cup head inner hexagon plug bolt (4), a hexagon nut (5), a first clamping plate nut set (6), a second clamping plate nut set (7), a cover (8) and a front hydrofoil top rod (9), wherein the front hydrofoil fixing cover plate (1) is arranged on the top of the front hydrofoil column (2), the front hydrofoil plate (3) is arranged below the front hydrofoil column (2), the front hydrofoil fixing cover plate (1) is fixed to the upper end of the front hydrofoil column (2) by the cup head inner hexagon plug bolt (4) and the hexagon nut (5), and the outer portion of the front hydrofoil fixing cover plate (1) is fixed to the upper end of the front hydrofoil column (2) by the cup head inner hexagon plug bolt (4) and the hexagon nut (5). A cover (8) is provided on the side, an electric push rod (10), a displacement sensor (11), a displacement sensor mounting frame (12) and a stroke displacement member (13) are provided inside the front hydrofoil fixed cover plate (1), the displacement sensor (11) is mounted on the displacement sensor mounting frame (12), the electric push rod (10) is connected to the front hydrofoil top rod (9) through the stroke displacement member (13), the lower end of the front hydrofoil top rod (9) is connected to the front hydrofoil plate (3) through the second clamping plate nut set (7), and the left side of the front hydrofoil column (2) is hinged to the front hydrofoil plate (3) through the first clamping plate nut set (6).
2. An adjustable hydrofoil assembly according to claim 1, characterized in that: The front hydrofoil plate (3) is an angle-adjustable hydrofoil plate.