Spray Container Orifice for Narrow-Angle Fine-Particle Spraying
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Solution Overview
Problem
Existing spray containers lack optimal spray angle formation and particle size control, leading to inefficient spraying and potential droplet formation that can be mistaken for leakage.
Innovation Solution
An orifice with a wing part extending from a ring part to contact the discharge path, a discharge port with a flat rear surface and cylindrical shape, and a spray container design featuring elastic members to control the discharge process, ensuring a narrow angle and fine particle spray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional spray orifices are used, then spray discharge is achieved, but spray angle is not optimized and particle size is not controlled, leading to droplet formation
Solution Approach 1:
The orifice structure incorporates different geometric features at different locations: a tapered section at the inlet for particle acceleration, a narrowest section for particle size control, and a discharge section with specific angle geometry for optimized spray pattern. This localized geometric variation enables precise control of spray angle and particle size throughout the discharge process.
Solution Approach 2:
The orifice geometry is designed with specific dimensional parameters including a tapered angle of 15-30 degrees, a discharge angle of 10-20 degrees, and controlled cross-sectional area variations. By optimizing these geometric parameters, the invention achieves narrow spray angle and fine particle size while maintaining spray efficiency.
2Length of stationary object
If spray angle is reduced for narrow spray, then spray distance increases, but discharge amount may decrease
Solution Approach 1:
The orifice design incorporates a tapered section that dynamically accelerates particles from the inlet through the narrowest section to the discharge point. This dynamic acceleration maintains high discharge amount even with reduced spray angle, as the increased particle velocity compensates for the narrower discharge angle.
Solution Approach 2:
The invention transitions from a simple circular orifice to a three-dimensional geometric structure with tapered walls and controlled cross-sectional area variation along the flow path. This dimensional complexity enables simultaneous optimization of spray distance (through narrow angle) and discharge amount (through accelerated flow).
3Ease of manufacture
If orifice structure is simplified, then manufacturing is easier, but spray performance and particle size control are insufficient
Solution Approach 1:
The orifice is designed as a multi-section structure with distinct functional zones: an inlet tapered section for particle acceleration, a narrowest section for size control, and a discharge section for spray angle formation. This segmentation allows each zone to be optimized for its specific function while maintaining manufacturability through standard machining processes.
Data Source
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AI summary
The present invention relates to an orifice and a spray container including the same. The orifice, which is provided at an outlet of the spray container, includes: an inflow part formed in a hollow cylindrical shape into which a nozzle is inserted and configured to receive contents flowing in through a circumference of the nozzle; a ring part recessed to a predetermined depth in a discharge direction from a circumference of a front surface of the inflow part; a discharge path provided at a center of the ring part and having a cross-sectional area decreasing in a direction toward a front; a wing part extending from the ring part toward the discharge path; and a discharge port provided at a front end of the discharge path.