Double-Valve Pressure Wave Control for Variable Impact Speed
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Solution Overview
Problem
Existing pneumatic pressure wave treatment apparatuses lack flexibility in controlling the impact speed and frequency of projectiles due to reliance on fixed geometric movement paths and pneumatic pressure adjustments, which can lead to inefficiencies and limitations in operating frequency and impact speed variation.
Innovation Solution
A double valve system is implemented to control projectile movement, allowing for partial movement paths and overlapping or separated activation times to independently manage the projectile's direction and speed, independent of pneumatic pressure changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the projectile is allowed to complete its full geometric movement path, then the maximum possible impact speed is achieved, but the cycle time is extended and operating frequency is reduced
Solution Approach 1:
The invention makes the projectile movement path dynamic by allowing it to be variable rather than fixed. The control means can adjust the effective movement path length based on treatment requirements, enabling the system to optimize between impact speed and operating frequency by selecting different path lengths for different treatment scenarios.
Solution Approach 2:
The invention changes the parameter of movement path length from a fixed geometric value to a variable parameter controlled by control means. By adjusting the effective movement path length, the system can independently control impact speed and operating frequency, resolving the trade-off between these two parameters.
2Force
If pneumatic pressure is increased to achieve higher impact speeds, then the impact force is improved, but the control flexibility and operating frequency are limited
Solution Approach 1:
The invention segments the control of projectile movement into two independent components: pneumatic pressure control and movement path length control. This segmentation allows impact force to be controlled by pressure while impact speed and frequency are controlled by path length, providing independent adjustment of these parameters and greatly enhancing control flexibility.
Solution Approach 2:
The invention introduces dynamic control of the movement path length, allowing the system to adjust the effective acceleration distance independently of the pneumatic pressure. This enables flexible control of impact parameters without being constrained by pressure adjustments alone.
3Productivity
If the movement path is shortened to increase operating frequency, then the cycle time is reduced, but the maximum impact speed is reduced
Solution Approach 1:
The invention treats the movement path length as a controllable parameter rather than a fixed geometric constraint. By varying the effective path length, the system can optimize for either high frequency (shorter paths) or high speed (longer paths) depending on treatment requirements, rather than being locked into a fixed trade-off.
4Device complexity
If a single valve system is used for projectile acceleration, then the device complexity is reduced, but the control precision and flexibility are insufficient
Solution Approach 1:
The invention segments the valve control system into multiple independent valves (first valve for forward acceleration, second valve for return movement). This segmentation enables precise independent control of each movement phase, allowing for accurate timing and duration control of projectile acceleration and return, thereby improving control precision.
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 approach enables variable impact speeds and frequencies without altering pneumatic pressure, reducing the time required for each cycle, enhancing operational efficiency and flexibility, and allowing for rapid control of impact physics.
Implementation Method 1
A pneumatic overpressure is coupled-in by application of a pressure to a volume on one side of the projectile movable along a movement path
Implementation Method 2
the pulse of which accelerates the projectile from an end of the movement path distal to the applicator towards the applicator
Implementation Method 3
the return movement takes place with the aid of a counter-pressure chamber, i.e., a storage volume, into which the projectile moved towards the applicator to a certain extent displaces the air located in front of it
Implementation Method 4
a double valve means for application of the projectile in both directions, i.e., towards the applicator and vice versa away from it in the reverse direction
Data Source
AI summary
Apparatus for treatment with pressure waves, comprising: a projectile guided along the movement path, an applicator and a stop, pneumatic means for application of pressure to the projectile for the purpose of movement, wherein the projectile is adapted for striking onto the applicator, which pneumatic means comprises a double valve means for application of pressure to the projectile towards the applicator during a first activation time and in the reverse direction during a second activation time, and a control means adapted, after a partial return movement in a second activation time, to end this second activation time, to start a first activation time and, after only a part of the movement path, to reverse the movement from a return movement into a forward movement.