Notched Deflector Circular Projection Stabilizes Water Jet Flow
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Solution Overview
Problem
Conventional notched deflectors in water jet lances suffer from irregularity and instability in the water outlet flow due to significant water passage through slits, affecting the effectiveness of the system, especially in compact jet and mist screen positions.
Innovation Solution
A notched deflector with a circular projection on the rear side of the head, which covers a portion of the notches, controls the water flow effectively, ensuring a stable and concentrated stream in both positions by preventing direct striking and enhancing hydraulic behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water passes through the slits that define the notches, then the deflector can fragment the jet and form a protective screen, but this causes irregularity and lack of stability in the outlet flow stream
Solution Approach 1:
The invention extracts the harmful uncontrolled water passage through the slits by introducing a circular projection that blocks this unwanted flow path. The projection is positioned to cover the slits when the deflector is in the compact jet position, preventing water from passing through the notches and causing irregularities, while allowing the notches to function properly in the mist screen position.
Solution Approach 2:
The circular projection creates a local modification in the deflector structure that affects only specific flow conditions. It selectively controls water flow based on the deflector's position: blocking the slits in compact jet position to ensure stability, while allowing full notche functionality in mist screen position for effective fragmentation.
2Reliability
If a circular projection is added to control water flow, then flow stability improves, but device complexity increases
Solution Approach 1:
The circular projection is merged with the deflector head as an integrated component rather than a separate element. This unifies the flow control function with the existing deflector structure, achieving enhanced reliability without proportionally increasing device complexity. The projection becomes an inherent part of the deflector's geometry.
Solution Approach 2:
The invention modifies the geometric parameters of the deflector by adding a circular projection with specific dimensions and positioning. This parameter change enables the projection to effectively cover the slits at the appropriate operational position, controlling water flow stability through geometric design rather than complex mechanical systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The circular projection stabilizes the water stream in both compact jet and mist positions, achieving better hydraulic performance and preventing irregularities, while maintaining higher water outlet speed and penetration power.
Implementation Method 1
allows the water flow to be controlled more effectively, advantageously ensuring a more stable stream and a compact jet in the corresponding position
Data Source
AI summary
The invention relates to a notched deflector (1) for a water jet lance, comprising a circular part with a rod (2) and a head (3) provided with notches (4) that are distributed over the lateral surface of said head (3) and a circular projection (5) on the rear portion. Optionally, the circular projection (5) emerges right next to the rear area or base (4a) of the notches (4), in the area where the head (3) joins the rod (2). Optionally, the circular projection (5) covers a portion of the rear area or base (4a) of the notches (4) on the lateral side of the head (3).