Stacked Plate Fluid Nozzle for Wide Low-Flow Coolant Coverage
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Solution Overview
Problem
Existing fluid nozzles require a large coolant reservoir and suffer from inefficient fluid distribution at low flow rates, necessitating costly pump upgrades.
Innovation Solution
A stacked configuration of plate members with aligned ejection and inlet cut-out portions, including flared ejection openings, to ensure a sufficient fluid flow rate and wide area coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a large coolant reservoir is used to supply fluid over a wide area, then the fluid discharge coverage is improved, but the installation position becomes limited and the device size increases
Solution Approach 1:
The nozzle body is divided into multiple plate members (first plate member, second plate member, third plate member) stacked in the thickness direction. Each plate member contains specific passages or cut-out portions, creating a segmented fluid passage system that achieves wide area coverage without requiring a large reservoir volume.
Solution Approach 2:
The fluid passage extends in the plate-thickness direction through stacked plate members, utilizing the third dimension to create a compact yet effective fluid distribution system. The ejection cut-out portions are arranged along the outer edge in a dimensional configuration that maximizes discharge coverage within a compact footprint.
2Area of stationary object
If a slit-like ejection hole is formed throughout the entire longitudinal direction of the coolant reservoir, then the fluid can be supplied over a wide area, but the fluid cannot be effectively diffused when the supply flow rate is low
Solution Approach 1:
The continuous slit-like ejection hole is divided into multiple discrete ejection cut-out portions (first through fourth cut-out portions) arranged along the outer edge. This segmentation allows each cut-out portion to effectively diffuse fluid even at low flow rates while collectively covering a wide discharge area.
Solution Approach 2:
Different sections of the nozzle body provide different functions: the first and second plate members contain the fluid passage and inlet, the third plate member contains the ejection cut-out portions for fluid discharge, and the fourth plate member provides structural support. This local differentiation optimizes fluid diffusion at each stage of the flow path.
3Reliability
If the supply flow rate of the coolant is increased by enlarging the pump, then the fluid can be effectively diffused, but the pump size and cost increase
Solution Approach 1:
The fluid passage is segmented into multiple sections across four plate members, with multiple ejection cut-out portions distributed along the outer edge. This segmentation creates multiple fluid ejection points that collectively achieve wide area coverage and effective diffusion without requiring high supply flow rates or large pumps.
Solution Approach 2:
The fluid distribution system utilizes the plate-thickness direction and outer edge arrangement to create a compact configuration that achieves effective fluid diffusion without increasing pump size. The multi-plate structure provides sufficient passage length and ejection surface area within a compact volume.
4Volume of moving object
If the overall thickness of the nozzle is reduced to improve space efficiency, then the device becomes more compact, but the passage cross-sectional area becomes narrower resulting in poor fluid flow
Solution Approach 1:
The fluid passage is divided into multiple segments across four plate members, with each plate contributing a specific portion of the fluid path. This segmentation allows the passage to extend in the plate-thickness direction, maintaining sufficient cross-sectional area for fluid flow while reducing the overall nozzle footprint in other dimensions.
Solution Approach 2:
The fluid passage utilizes the plate-thickness direction to achieve sufficient passage length and cross-sectional area. By stacking plate members, the system maintains adequate fluid flow capacity while reducing the nozzle's planar footprint, achieving compactness without sacrificing fluid productivity.
Data Source
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AI summary
The fluid nozzle (20) is configured by stacking an obverse side plate member (21) having a fluid supply hole (21a), a reverse side plate member (22) arranged on the reverse side of the obverse side plate member (21), and a first intermediate plate member (23) and a second intermediate plate member (24) in which a fluid passage (26) is formed. The fluid passage (26) includes an inlet opening (23a) and a plurality of inlet cut-out portions (23b) formed in the first intermediate plate member (23), and a plurality of ejection cut-out portions (24a) formed in the second intermediate plate member (24). The plurality of ejection cut-out portions (24a) are arranged and spaced apart from each other along the lower edge of the second intermediate plate member (24) and are open to the lower edge side. The inlet opening (23a) is formed to span the plurality of ejection cut-out portions (24a), and each of the inlet cut-out portions (23b) is formed to have a recessed shape that opens toward the inlet opening (23a) side and overlaps with a portion of each of the ejection cut-out portions (24a) when viewed in the plate-thickness direction.