Pneumatic Solenoid Valve Diffuser for High Flow in Compact Clutch Control
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Solution Overview
Problem
Conventional pneumatic solenoid valves have limited flow rates due to the clear width of the valve passage and actuator power consumption, making them inefficient for use in transmission control or clutch systems without increasing size or power consumption.
Innovation Solution
The integration of a diffuser channel within the housing body of the solenoid valve, which widens transversely to the valve axis, and a mandrel-shaped flow guide element to accelerate air flow, maintaining a smaller vent valve seat passage width while enhancing flow rate and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the clear width of the valve passage is increased to improve flow rate, then the flow rate increases, but the device size increases
Solution Approach 1:
The patent introduces a diffuser channel that extends in a direction transverse to the valve axis, utilizing a third dimension to increase the effective flow area without increasing the axial length of the valve body. The diffuser channel has a cross-section that widens from the vent valve seat toward the vent channel outlet, creating an expanded flow path that increases flow rate while maintaining compact axial dimensions.
2Productivity
If the actuator power consumption is increased to improve flow rate, then the maximum magnetic force increases and the valve opens more, but the power consumption increases
Solution Approach 1:
The patent changes the geometric parameters of the vent channel by introducing a diffuser channel with a cross-section that widens in the transverse direction. This geometric modification reduces flow resistance and improves the flow characteristics, allowing the valve to achieve higher flow rates without requiring increased actuator force or power consumption.
3Productivity
If the clear width of the vent valve seat passage is increased to improve flow rate, then the flow rate increases, but the manufacturing precision requirements increase
Solution Approach 1:
Instead of increasing the clear width of the vent valve seat passage (which would require tighter manufacturing tolerances), the patent extends the flow path in a transverse dimension through the diffuser channel. This approach increases the effective flow area without modifying the critical seat passage dimensions, thereby maintaining easier manufacturing requirements.
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
This design achieves a higher flow rate with reduced power consumption, allowing for a more compact and efficient pneumatic solenoid valve suitable for transmission control and clutch systems.
Implementation Method 1
a diffuser channel (111) of the diffuser widens in cross section from the vent valve seat (300) to the vent channel (160}
Implementation Method 2
in the diffuser channel (111) opposite the vent valve seat passage (310), a flow baffle element (621) is formed as a mandrel-shaped flow guide element on the valve axis (A1)
Implementation Method 3
a pneumatic solenoid valve with a housing body (101) with a supply channel (430), a consumer channel (440) and a vent channel (160), wherein the housing body (101) surrounds a valve chamber (500) in which a valve body (200) is movable along a valve axis (A1) relative to a vent valve seat (300) to the vent channel (160) and a supply valve seat (400) to the supply channel (430) by means of an actuator (410), counter to the force of a valve spring (420)
Data Source
Figure 1
Figure 2(A)~2(B)
Figure 3(A)~3(B)
AI summary
The invention relates to a pneumatic valve apparatus for a compressed air device, in particular having a pneumatic cylinder, in particular for an automatic clutch system or an automated transmission-control and clutch system, comprising: - a pneumatic solenoid valve (10) comprising a housing body (101) having a supply channel (430), a removal channel (440) and a ventilation channel (160), wherein - the housing body (101) surrounds a valve chamber (500) in which a valve body (200), opposite a ventilation valve seat (300) and a supply valve seat (400), can be moved by an actuator along a valve axis (A1) counter to the force of a valve spring (420), wherein - in a first position (E) the valve body opens the valve chamber (500) and the ventilation valve seat (300) towards a ventilation channel (160), and in a second position (V) opens a supply channel (430) towards the supply valve seat (400) and the valve chamber (500). According to the invention, - the housing body (101) comprises a diffuser (110) which is connected to the ventilation valve seat (300) in the direction of the ventilation channel (160), wherein the cross section of a diffuser channel (111) of the diffuser widens from the ventilation valve seat (300) to the ventilation channel (160), and - the diffuser channel (111) extends transversely to the valve axis (A1), and a ventilation valve seat passage (310) has a clear width (311) that is smaller than a second clear width (131, 132, 133) of the diffusor channel (111).