WO2016202150A1

WO2016202150A1 - Pressure generation apparatus and generation method

Info

Publication number: WO2016202150A1
Application number: PCT/CN2016/083212
Authority: WO
Inventors: 林中尉
Original assignee: 林中尉
Priority date: 2015-06-17
Filing date: 2016-05-24
Publication date: 2016-12-22
Also published as: CN104879332A; CN104879332B

Abstract

A pressure generation apparatus comprises a fixed means (1) in a fluid and a movement means(2) moving relative to the fixed means (1), opposite inner surfaces of the movement means (2) and the fixed means (1) contacting with each other, or there is a relatively small gap (3) therebetween, and outer surfaces of both the movement means (2) and the fixed means (1) contacting the fluid. A pressure generation method using the pressure generation apparatus is also provided. When the movement means (2) moves relative to the fixed means (1), a force of fluid on the outer surface of the movement means (2) on the movement means (2) is less than a force of fluid on the outer surface of the fixed means (1) on the fixed means (1), so that the fluid produces a pressure on the pressure generation apparatus.

Description

Pressure generating device and generating method

Technical field

This patent relates to pressure (or thrust) generating devices and methods of generating pressure (or thrust).

Background technique

For a propeller of a helicopter or a propeller of a ship, the area of the blade needs to be large enough to generate a larger thrust, and for this reason, the propeller tends to be long to increase the thrust. At the same time, the propeller has a large disturbance noise when it rotates. For these thrust generating devices, the volume is large, the noise is large, the manufacturing process is complicated, and the cost is high.

Summary of the invention

The object of the present invention is to provide a pressure generating device which is simple in structure, small in size, low in noise, and convenient in preparation.

The pressure generating device of the present invention comprises a fixing member located in the fluid, a moving member moving relative to the fixing member, the opposite inner side surface of the moving member and the fixing member being in contact or having a small gap therebetween, the moving member and the fixing member The outer side surface of the piece is in contact with the fluid; when the moving piece moves relative to the fixing piece, the force of the fluid at the outer side surface of the moving piece on the moving piece is smaller than the force of the fluid at the outer side surface of the fixing piece to the fixing piece, thereby making the fluid Pressure is generated on the pressure generating device.

In the pressure generating device, the fixing member and the moving member are flat plates, and the moving member rotates relative to the fixing member about an axis perpendicular to the inner side surface of the fixing member.

The pressure generating device, the fixing member and the moving member are flat plates, and the moving member reciprocates relative to the fixing member in the inner side surface of the fixing member.

In the pressure generating device, the moving member is a rotating body, and the fixing member is an arc-shaped plate corresponding to the rotating surface of the rotating body; the moving member moves relative to the fixed member around the rotating shaft of the rotating body.

In the pressure generating device, the gap has a medium, and the gap has a size that the force of the medium in the gap is substantially equal to the force acting on the inner side surface of the moving member and the inner surface of the fixing member. In other words, the smaller the gap, the better. The gap is too large, and the medium in the gap has different pressure on the inner surface of the moving member and the inner surface of the fixing member, and power loss occurs; the smaller the gap, the more pressure the medium in the gap exerts on the opposite inner side surface of the moving member and the fixing member. To be equal, the greater the difference between the force acting on the outer surface of the moving member and the force acting on the outer surface of the fixed member, the greater the pressure exerted by the fluid on the pressure generating device (in theory, if the medium is in the gap) When the force of the opposite inner side surface of the moving member and the fixing member are equal, the pressure generated by the fluid on the pressure generating device is equal to the difference in the force of the fluid on the outer surface of the moving member and the fixing member (at this time, the force difference value) Also referred to as the theoretical value.) If the opposing inner side surfaces of the moving member and the fixing member are subjected to unequal forces, the pressure generating device is subjected to a pressure less than the theoretical value.

In the pressure generating device, the medium is a lubricating medium (such as lubricating oil) that reduces the frictional resistance between the moving member and the fixing member.

In the pressure generating device, the medium is the fluid. Of course, the fluid can also be regarded as a lubricating medium.

The invention also provides a pressure generating method which is easy to implement and has low noise, and the components used in the method are simple in structure and convenient in preparation.

The pressure generating method of the present invention is to use a fixing member located in the fluid and a moving member moving relative to the fixing member, the moving member and the opposite inner side surface of the fixing member are in contact with each other or have a small gap, and the outer surface of the moving member and the fixing member Both are in contact with the fluid; when the moving member moves relative to the fixing member, the force of the fluid at the outer surface of the moving member against the moving member is smaller than the force of the fluid at the outer surface of the fixing member against the fixing member, so that the fluid occurs to the pressure The device generates pressure.

Advantageous Effects of Invention: The device is located in a fluid (air or water, etc.), and the moving member may be rotated, reciprocated, or otherwise moved relative to the fixture. When the moving member rotates or moves, the outer surface of the moving member moves relative to the fluid. According to the principle that the fluid flow rate is high and the pressure is low, the fluid generates a low pressure on the outer surface of the moving member; the fixing member is not moved, and the fluid is opposite to the fixing member. The pressure generated by the surface is greater than the pressure of the flow on the outside surface of the moving part. Since the opposite inner side surfaces of the fixing member and the moving member are in contact with each other or the gap therebetween is small, the pressure acting on the inner side surface of the moving member and the pressure acting on the inner side surface of the fixing member can be approximated as being equal. Therefore, the resultant force of the fluid on the outer surface of the fixture and the pressure of the flow on the outer surface of the moving member is the pressure applied to the device.

The moving member is in contact with the opposite inner side surface of the fixing member. To reduce friction, a lubricating medium (such as lubricating oil) is preferably provided between the opposite inner side surfaces, and the fluid can serve as a lubricating medium.

In the pressure generating device, there is no conventional propeller, and the pressure acting area is larger than that of the conventional propeller, and it is advantageous for realizing miniaturization of the device and reducing disturbance noise, etc. In addition, the device has better processability and is more convenient. Manufacturing.

DRAWINGS

Figure 1 is a schematic view of a pressure generating device;

Figure 2 is a schematic illustration of another pressure generating device.

detailed description

Example 1:

Referring to the pressure generating device shown in Fig. 1, the fixing member 1, the moving member 2, the fixing member 1 and the moving member 2 are all wafers, and the two wafers are coaxial. The inner side surface 21 of the moving member and the inner side surface 11 of the fixing member are vertically opposed, and there is lubricating oil in the gap 3 between the opposite inner side surfaces, and the width of the gap 3 is less than 0.5 mm. A drive mechanism (not shown) that drives the moving member about the fixed member axis 4 relative to the fixed member is coupled to the moving member. During the rotation of the moving member 2, the width of the gap 3 remains substantially unchanged. The fixing member 1 and the moving member 2 are placed in the air, and the outer side surface 22 of the moving member and the outer side surface 12 of the fixing member are in contact with the air. When the moving member rotates relative to the fixing member, since the gap 3 is small, the force of the lubricating oil on the inner side surface of the moving member and the inner side of the fixing member The forces of the faces are substantially equal, and the force of the air at the outer surface of the moving member on the moving member is smaller than the force of the air at the outer surface of the fixing member against the fixing member, so that the air generates a pressure F to the pressure generating device, the pressure The direction is parallel to the axis and is directed by the fixture 1 towards the moving member 2.

Of course, the same effect can be achieved if the inner side surface 21 of the moving member and the inner side surface 11 of the fixing member are in contact with each other.

Of course, if there is no lubricating oil in the gap 3, the air in the gap 3 is the air (in this case, the air can also be regarded as a lubricating medium), and the same effect can be achieved.

Example 2:

Referring to the pressure generating device shown in Fig. 1, comprising the fixing member 1, the moving member 2, the fixing member 1 is a half ring, the moving member 2 is a shaft, and the half ring is coaxial with the shaft (the axis coincides) . The inner side surface 21 of the moving member and the inner side surface 11 of the fixing member are vertically opposed, and there is lubricating oil in the gap 3 between the opposite inner side surfaces, and the width of the gap 3 is less than 0.5 mm. A drive mechanism (not shown) that drives the moving member about the fixed member axis 4 relative to the fixed member is coupled to the moving member. During the rotation of the moving member 2, the width of the gap 3 remains substantially unchanged. The fixing member 1 and the moving member 2 are placed in water, and the outer side surface 22 of the moving member and the outer side surface 12 of the fixing member are in contact with water. When the moving member rotates relative to the fixing member, since the gap 3 is small, the force of the lubricating oil on the inner side surface of the moving member and the acting force on the inner side surface of the fixing member are substantially equal, and the water at the outer surface of the moving member is opposite to the moving member. The force is less than the force of the water at the outer surface of the fixture to the fixture, such that the water creates a pressure F against the pressure generating device that is perpendicular to the axis and is directed by the fixture 1 toward the moving member 2.

Of course, if there is no lubricating oil in the gap 3, the water in the gap 3 is the water (in this case, the water can also be regarded as a lubricating medium), and the same effect can be achieved.

Claims

The pressure generating device comprises a fixing member located in the fluid and a moving member moving relative to the fixing member, wherein the moving member and the opposite inner side surface of the fixing member are in contact with each other or have a small gap therebetween, the moving member and the fixing member The outer side surfaces are in contact with the fluid; when the moving member moves relative to the fixing member, the force of the fluid at the outer surface of the moving member against the moving member is smaller than the force of the fluid at the outer surface of the fixing member against the fixing member, thereby making the fluid pair The pressure generating device generates pressure.
The pressure generating device according to claim 1, wherein the fixing member and the moving member are flat plates, and the moving member rotates relative to the fixing member about an axis perpendicular to the inner side surface of the fixing member.
The pressure generating device according to claim 1, wherein the fixing member and the moving member are flat plates, and the moving member reciprocates relative to the fixing member in the inner side surface of the fixing member.
A pressure generating device according to claim 1, wherein the moving member is a rotating body, and the fixing member is a curved plate corresponding to the rotating surface of the rotating body; and the moving member moves relative to the fixed member about the rotating shaft of the rotating body.
A pressure generating device according to claim 1, wherein said gap has a medium therein, and said gap has a size satisfying: a force of the medium in the gap to the inner side surface of the moving member and an effect on the inner side surface of the fixing member. The forces are basically equal.
The pressure generating device according to claim 5, wherein said medium is a lubricating medium that reduces frictional resistance between the moving member and the fixing member.
A pressure generating device according to claim 5, wherein said medium is said fluid.
a pressure generating method, characterized in that: the method is to use a fixing member located in a fluid, a moving member moving relative to the fixing member, the moving member and the opposite inner side surface of the fixing member are in contact with or have a small gap, the moving member and the fixing member The outer side surfaces are in contact with the fluid; when the moving member moves relative to the fixing member, the force of the fluid at the outer surface of the moving member against the moving member is smaller than the force of the fluid at the outer surface of the fixing member against the fixing member, thereby making the fluid pair The pressure generating device generates pressure.