Method of manufacturing orifice and orifice manufactured by the same
AssigneeKorea Aerospace Research Institute
InventorJisung LEE
Life of this patent
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Abstract
Provided are a method of manufacturing an orifice and an orifice manufactured by the same. An object of the present invention is to provide a method of manufacturing an orifice spraying a very small amount of fluid in ultra-high pressure and very low temperature environments and reducing a volume and a mass, and an orifice manufactured by the same. More specifically, an object of the present invention is directed to providing a method of manufacturing an orifice capable of manufacturing an orifice effectively realizing a desired hydraulic performance by a simple manufacturing method of allowing a channel region having a cross section close to a rectangular shape to be formed by pressing a part of a capillary pipe, and an orifice manufactured by the same.
Claims8
A method of manufacturing an orifice, comprising:
- a body portion preparing step of preparing a body portion in which a hollow having a circular cross section is formed;
- a stress value calculating step of calculating a stress value required for a predetermined desired flow rate value according to the following relationship equation:
- {dot over (m)}=C1 exp(C2S) (here {dot over (m)}:
- Flow rate, S:
- Stress, C1:
- Positive constant, and C2:
- Negative constant) between a flow rate and a stress;
- and
- a pressed portion manufacturing step of manufacturing a pressed portion in which the hollow becomes a slit by pressing at least a partial region of the body portion with a pressing force corresponding to the stress value calculated in the stress value calculating step.
Dependencies are inferred from the claim text.