Rotary actuator and application thereof
OwnerChuh Hwa Luhinventor
Life of this patent
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Abstract
A specially designed rotary actuator comprising a sealed container and a piston rotor located in the sealed container. The piston rotor divides the sealed container into a first space and a second space having different pressures. The first end of the piston rotor faces the first space and includes a plurality of first bores, and the second end of the piston rotor faces the second space and includes a plurality of second bores. The depth of the first and second bores is less than the thickness of the piston rotor. Each of the first and second bores comprises a first portion and a second portion, wherein the surface area of the first portion is greater than the surface area of the second portion.
Claims17
A rotary actuator, comprising:
- a sealed container;
- a cylindrical piston rotor disposed in the sealed container to divide the sealed container into a first space and a second space along an axial direction of the piston rotor, the first space and the second space having a pressure difference and being isolated from each other by the piston rotor;
- wherein the piston rotor comprises a first end surface facing the first space and a second end surface facing the second space, the first end surface is drilled to form a plurality of first bores parallel to the axial direction of the piston rotor, and the second end surface is drilled to form a plurality of second bores parallel to the axial direction of the piston rotor, and
- wherein both a depth of each of the plurality of first bores and a depth of each of the plurality of second bores are less than a thickness of the piston rotor in the axial direction, each of the plurality of first bores and each of the plurality of second bores both comprise a first portion and a second portion, and the surface area of the first portion is greater than the surface area of the second portion.
A rotary actuator, comprising:
- a sealed container;
- N cylindrical piston rotors disposed in the sealed container to divide the sealed container into N+1 spaces along an axial direction of the sealed container, wherein N is a positive integer, each two of the N+1 spaces are isolated from each other by one of the N piston rotors, and each of the piston rotors is sandwiched between two of the N+1 spaces with a pressure difference therebetween;
- wherein each of the piston rotors comprises a first end surface and a second end surface, the first end surface is drilled to form a plurality of first bores parallel to the axial direction of the sealed container, and the second end is drilled to form a plurality of second bores parallel to the axial direction of the sealed container;
- and
- wherein both a depth of each of the plurality of first bores and a depth of each of the plurality of second bores are less than a thickness of the piston rotor in an axial direction of the piston rotor, each of the plurality of first bores and each of the plurality of second bores both comprise a first portion and a second portion, and the surface area of the first portion is greater than the surface area of the second portion.
A rotary actuator, comprising:
- a sealed container;
- a piston rotor disposed in the sealed container to divide the sealed container into a first space and a second space having a pressure difference therebetween;
- wherein the piston rotor comprises a first end facing the first space and a second end facing the second space, the first end comprises a plurality of first bores, the second end comprises a plurality of second bores, the plurality of first bores and the plurality of second bores are alternately arranged, and a depth of each of the plurality of first bores and each of the plurality of second bores is smaller than a thickness of the piston rotor;
- and
- wherein a membrane is disposed at the interface of each pair of the first bore and the second bore, and the membrane is deformed under the pressure difference to drive the piston rotor.
Dependencies are inferred from the claim text.