Flow Rate Regulator Bypass Channel Low Pressure Clogging
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Solution Overview
Problem
Existing sanitary flow rate regulators are inefficient at low pressures, allowing only small amounts of fluid to pass through, and are prone to clogging by dirt particles, which impede their function.
Innovation Solution
A sanitary insertable cartridge with a flow rate regulator positioned between an attachment or filter sieve and a jet regulator, featuring a bypass channel with its inlet upstream of the sieve and outlet downstream of the jet regulator, allowing larger dirt particles to pass through without blocking, and a valve that closes at increased pressure to regulate fluid flow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a control gap is used to regulate flow rate at high pressures, then the maximum flow rate is regulated, but at low pressures the control gap becomes a flow obstacle that limits fluid passage
Solution Approach 1:
The flow path is segmented into two separate channels: a control gap channel for high-pressure flow regulation and a bypass channel for low-pressure flow. The valve body divides the internal flow path, allowing fluid to selectively pass through different channels based on pressure conditions, thus resolving the contradiction between maintaining flow at low pressures and regulating maximum flow at high pressures.
Solution Approach 2:
The system dynamically switches between two flow paths based on pressure conditions. At low pressures, the bypass channel is open to allow sufficient flow. At high pressures, the valve closes the bypass channel and relies on the control gap for flow regulation. This dynamic adaptation resolves the contradiction by optimizing flow characteristics for different pressure ranges.
2Productivity
If the flow rate regulator is positioned in the fluid line, then flow regulation is achieved, but dirt particles settle in front of or in the control gap causing clogging
Solution Approach 1:
The bypass channel inlet is extracted and positioned upstream of the filter screen, creating a separate flow path that bypasses the problematic zone where dirt particles accumulate. This allows the majority of fluid to flow through the bypass channel at low pressures, avoiding the control gap area where clogging occurs, thus maintaining reliability while preserving flow regulation capability.
Solution Approach 2:
The bypass channel acts as an intermediary flow path that mediates between the inlet and outlet, allowing fluid to circumvent the control gap and filter screen assembly. This intermediary channel protects the system from clogging by providing an alternative route that avoids the accumulation zone of dirt particles.
3Ease of operation
If a jet regulator is connected downstream to shape the water jet, then a homogeneous non-splashing jet is achieved, but dirt particles clog the jet splitter device
Solution Approach 1:
The bypass channel outlet is extracted and positioned downstream of the jet regulator, creating a flow path that circumvents the jet splitter device. This allows fluid to bypass the vulnerable jet regulator components, preventing dirt particles from clogging the jet splitter while still allowing the jet regulator to function when needed, thus maintaining both jet quality and reliability.
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
Significantly increases fluid flow at low pressures and prevents clogging by allowing additional fluid to bypass the control gap, ensuring a consistent maximum flow rate and maintaining the functionality of downstream components by filtering out dirt particles.
Implementation Method 1
an elastic throttle body (5) which delimits a control gap (7) between itself and a housing wall (6) in such a way that the clear cross section of the control gap changes under the pressure of the liquid flowing through
Implementation Method 2
the at least one by-pass and/or cleaning channel is under pressure of the inflowing fluid from an open position to a closed position against a restoring force provided, which valve closes the bypass and/or cleaning channel in its closed position
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a flow-volume regulator (1) having an elastic throttle body (5) which delimits, between itself (5) and a housing wall (6), a control gap (7) which changes under the pressure of the fluid flowing through. A characteristic of the inventive flow-volume regulator (1) is that the flow-volume regulator (1) has at least one associated bypass and/or cleaning channel (8) whose at least one channel inlet (9) is arranged before the control gap (7) in the direction of flow and whose at least one channel outlet (10) is arranged after the control gap (7) in the direction of flow, and that the bypass and/or cleaning channel (8) contains a valve (11) which can move, under the pressure of the oncoming fluid, from an open position against a restoring force into a closed position and which seals the bypass and/or cleaning channel (8) in its closed position. Since the inventive flow-volume regulator (1) lets an additional volume of the fluid through the bypass channel (8) when the oncoming fluid is at low pressure, the flow curve for the inventive flow-volume regulator (1) is significantly increased in the low pressure range, which results in an enormous increase in convenience for low-pressure applications.