Sanitary Insert Unit with Deflection Cone for Low-Pressure Aeration
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Solution Overview
Problem
Existing sanitary insert units fail to significantly improve the jet quality of water at low pressures, as they either require high water pressure for deformation of elastic throttle bodies or suffer from turbulences due to perpendicular impact surfaces.
Innovation Solution
Incorporating a central deflection cone on the pot bottom of the jet splitter and aligning internal ring channels to direct water onto it, along with a ventilated jet regulator design that uses negative pressure created by speed increases to mix ambient air with water, forming a soft and non-splashing jet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an elastic throttle body is used to regulate flow rate, then flow rate can be controlled, but at low water pressures the throttle body cannot deform effectively and constricts the flow cross-section
Solution Approach 1:
The flow regulator is divided into multiple regulator units (first regulator unit with annular throttle body, second regulator unit with additional throttle body). Each unit handles different aspects of flow control, allowing effective regulation even at low pressures where individual throttle bodies can still deform.
Solution Approach 2:
Different throttle bodies are positioned at different locations within the flow path. The first annular throttle body is positioned in the annular channel, while the second throttle body is positioned in the central channel, creating localized control zones that work together to maintain regulation capability across varying pressure conditions.
2Productivity
If a closing valve is added to create extra flow path at low pressure, then flow rate increase is improved, but jet quality improvement at low pressures is still insufficient
Solution Approach 1:
The conical impact surface with centrally arranged deflection cone replaces flat or perpendicular impact surfaces. The conical geometry gradually deflects the water jet, reducing turbulence and improving jet quality while maintaining the flow rate enhancement provided by the additional throttle body.
3Speed
If impact surface is arranged perpendicular to flow direction, then water flow can be deflected, but strong turbulence occurs even at low pressures
Solution Approach 1:
The conical impact surface with centrally arranged deflection cone replaces flat or perpendicular impact surfaces. The conical geometry gradually deflects the water jet, reducing turbulence and improving jet quality while maintaining the flow rate enhancement provided by the additional throttle body.
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 solution enhances jet quality at low pressures by decelerating and deflecting water onto the deflection cone, creating a high-speed, vacuum-enhanced, and homogeneous water jet, avoiding peak flow rate disruptions and improving jet quality.
Implementation Method 1
The cross-sectional area of this control gap can be changed by the throttle body deforming under the pressure differential formed during flow
Implementation Method 2
The water flowing at high speed onto the impact surface and in particular onto the central deflecting cone is slowed down, deflected and directed outwards
Implementation Method 3
a comparatively high usable negative pressure is generated in the inventive insert unit even at low water pressures
Implementation Method 4
ambient air drawn into the aerator housing to form a soft, pearly discharge jet
Data Source
Figure 1~3
Figure 4
Figure 5~8
AI summary
The invention relates to a sanitary insertion unit (1) with a flow regulator (2) that has a regulator housing (3) in which a first regulator unit (4) is provided. The first regulator unit has an annular channel (5) which surrounds a core (6) and in which an annular throttle element (7) made of an elastic material is arranged. The throttle element (7) delimits a control gap between the throttle element and a profiled regulating section (8) provided on an inner and/or outer channel wall, the passage cross-section of said gap being modifiable by means of the throttle element (7), which deforms under the effect of the pressure difference generated in the event of a flow. At least one inner second regulator unit (9) is provided in the core (6) of the first regulator unit (4), said second regulator unit (9) likewise having an annular channel (10) with an annular throttle element (12) which is made of an elastic material and is arranged in the annular channel, and the throttle element (12) delimits a control gap between the throttle element and a profiled regulating section (13). The insertion unit according to the invention is characterized in that the insertion unit (1) has a jet regulator (14) which has a cup-shaped jet divider (16) in the jet regulator housing (15). The cub base of the jet divider forms an impact surface (17) which deflects the water coming from the regulator units (4, 9) outwards transversely to the jet regulator longitudinal axis towards passage openings (18) in the circumferential wall of the cup-shaped jet divider (16). The insertion unit according to the invention is characterized in that the insertion unit can achieve a good aeration and a good mixture of the fluid with the surrounding air even with a low pressure of the through-flowing fluid.