Fluid reaction surfaces (i.e. – impellers) – Oscillatory reaction motion – Flexible working member
Reexamination Certificate
2000-01-06
2001-12-25
Ryznic, John E. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Oscillatory reaction motion
Flexible working member
C416S19800R
Reexamination Certificate
active
06332756
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a motion converting unit. In particular, the present invention relates to a motion converting unit capable of converting mechanical motion into a flow of fluid, e.g., a blower, a pump, or converting a flow of a fluid into a mechanical motion, a wind electric generator, a wave electric generator.
2. Description of Background Art
An air blower has a propeller and a motor for rotating the propeller. By rotating the propeller about its own axis, an air flow is generated. Namely, a mechanical motion (the rotation of the propeller) is converted into the air flow.
On the other hand, a propeller of a wind electric generator is rotated by the air flow (wind). The air flow rotates the propeller about its own axis. Namely, a flow of a fluid (the air flow) is converted into a mechanical motion (the rotation of the propeller). Finally, energy of the flow is converted into electricity.
If the fluid is water (liquid), a pump converts a mechanical motion (rotation of a propeller) into a water flow; a water-driven electric generator converts a water flow into a mechanical motion (the rotation of a propeller).
The above described mechanisms are capable of converting kinetic energy of a solid body (or a mechanical motion) into kinetic energy of a flow of a fluid (or a flow motion) and vice versa.
Each of said mechanisms includes a motion converting unit, in which a moving body is capable of revolving about its own axis like a rotor unit or reciprocatively moving like a cylinder-piston unit.
In the case of a reciprocative motion unit, a high pressure flow can be generated or great power can be gained from a high pressure flow. However, the reciprocative motion unit cannot efficiently generate power when the pressure of the flow is lower and the amount of the flow is greater. Furthermore, vibration is apt to occur in the unit.
Therefore, conventional blowers, e.g., an air conditioner, a ventilator, a cooling fan, employs the fan revolving about its own axis.
However, the conventional motion converting units have the following disadvantages.
They cannot be made thinner, their function cannot be improved, and their manufacturing cost cannot be reduced, so they cannot be satisfied with various requirements, e.g., size, output power.
For example, the conventional revolving fan has a simple structure and is capable of efficiently flowing air. But a motor is serially connected to a shaft of the fan. Therefore, it cannot be made thinner in size. And, an opening section, to which the fan is attached, is partially closed by the motor, so a whole area of the opening section cannot be used for sucking air. Further, the size of a blower must be defined by a size and a shape of the fan, so a size and a shape of the blower cannot be designed freely. Namely, sizes and shapes of blowers must be limited.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a multi-functional motion converting unit, which can be compact, efficient and inexpensive.
To achieve the object, the motion converting unit of the present invention has following structures.
A motion converting unit, comprises:
a holding member being provided in a plane extending in a first direction and a second direction perpendicular to the first direction;
a swing fin extending in a third direction, which is perpendicular to the first and second directions, from the holding member, the swing fin having a first face and a second face, which cross a swing direction of the swing fin and which are capable of guiding a flow of a fluid, wherein a swing width of a free end of the swing fin is wider than that of a base end thereof when the holding member is moved in the direction parallel to the plane; and
means for guiding the movement of the swing fin with the holding member.
In the motion converting unit, rigidity of a base end part of the swing fin may be greater than that of a free end part thereof. With this structure, the mechanical motion including a linear motion can be converted into the flow motion of the fluid and vice versa.
In the motion converting unit, a plurality of the swing fins may be provided, in parallel, on the holding member, which is provided in the plane. With this structure, the mechanical motion including a linear motion can be converted into the flow motion of the fluid and vice versa.
In the motion converting unit, a plurality of the swing fins may be matrically and symmetrically provided, in parallel, in the first direction and the second direction with this structure, the mechanical motion including a circular motion can be converted into the flow motion of the fluid and vice versa.
In the motion converting unit, the swing fins may be held by the holding member, which has an opening section for introducing the fluid in the third direction. With this structure, a flow-in direction and a flow-out direction of the fluid can be the same, so that fluid resistance can be reduced and the motion can be efficiently converted.
In the motion converting unit, the swing fins and the holding member may be formed in a swing fin unit, the holding member may be formed into a frame shape and have an opening section for introducing the fluid in the third direction, a bridge section may be spanned in the frame-shaped holding member, the swing fins may be integrally connected the bridge section. With this structure, the motion converting unit can be employed for wide use, and the efficient motion converting unit can be manufactured with a low cost.
In the motion converting unit a plurality of the swing fin units may be matrically and symmetrically provided. With this structure, the function of the unit can be improved and the size and the shape of the unit can be freely designed by properly combining the swing fin units.
Another motion converting unit comprises a plurality of sub-units, which are linearly arranged in a flowing direction of a fluid,
wherein each sub-unit comprises:
a holding member being provided in a plane extending in a first direction and a second direction perpendicular to the first direction;
a swing fin extending in a third direction, which is perpendicular to the first and second directions, from the holding member, the swing fin having a first face and a second face, which cross the swing direction of the swing fin and which are capable of guiding a flow of a fluid, wherein a swing width of a free end of the swing fin is wider than that of a base end thereof when the holding member is moved in the direction parallel to the plane; and
means for guiding the movement of the swing fin with said holding member. With this structure, the flow with higher pressure can be generated, or greater power can be gained from the flow with higher pressure.
In the motion converting unit, the swing fins and the holding member of each sub unit may be formed in a swing fin unit, the holding member may be formed into a frame shape and have an opening section for introducing the fluid in the third direction, a bridge section may be spanned in the frame-shaped holding member, the swing fins may be integrally connected to the bridge section. With this structure, the flow with higher pressure can be generated, or greater power can be gained from the flow with higher pressure.
In the motion converting unit, the guiding means may be a linear guide capable of linearly moving the swing fin in the direction parallel to the plane. With this structure, the motion can be converted efficiently.
In the motion converting unit, the guiding means may be a two-dimensional drive system capable of moving the swing fin, along a circular orbit, in a plane parallel to the plane without revolving. With this structure, the swing fin can be properly moved, so that the motion can be converted efficiently.
In the motion converting unit, the two-dimensional drive system may include a plurality of crank levers, one end of which is fixed to a rotary shaft, which is rotatably provided on a body of the motion converting unit. The other end may be pivotably connected to the swi
Ryznic John E.
Yugen Kaisha Sozoan
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