Pressure Shock Absorber Bubble Suppression
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Solution Overview
Problem
The generation of air bubbles in the liquid of pressure shock absorbing apparatuses with throttle mechanisms leads to a delay in damping force generation, as air bubbles reduce the effectiveness of the damping force until they dissipate.
Innovation Solution
Incorporating a suppression unit, such as an annular restriction member or inter-cylinder regulation unit, at the liquid discharge point to restrict the flow of liquid and prevent air bubbles from forming, ensuring a consistent damping force by maintaining the liquid's purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a throttle mechanism is used to discharge liquid from the cylinder to the liquid storage chamber, then the damping force is generated by controlling the liquid flow, but air bubbles are generated in the liquid due to rippling on the liquid surface
Solution Approach 1:
A guide member is introduced as an intermediary component between the throttle mechanism and the liquid storage chamber. This guide member includes a guide passage that directs the liquid flow in a predetermined direction, preventing direct impact on the liquid surface and thus preventing air bubble generation. The guide member mediates the interaction between the throttled liquid and the storage chamber, solving the reliability issue while maintaining the damping force generation capability.
2Force
If the liquid flow is throttled to generate damping force, then the damping effect is improved, but the liquid flow causes rippling and air bubble formation
Solution Approach 1:
The guide member acts as a mediator that intercepts the throttled liquid flow before it reaches the liquid storage chamber. The guide passage channels the liquid in a controlled manner, preventing the formation of ripples and air bubbles. This intermediary structure allows the system to maintain the beneficial damping effect while eliminating the harmful air bubble generation.
3Productivity
If air bubbles are present in the liquid, then the liquid can be discharged through the throttle mechanism, but the damping force generation is delayed until air bubbles disappear
Solution Approach 1:
The guide member performs a preliminary action by directing the liquid flow in a predetermined direction before the liquid enters the storage chamber. This preliminary flow direction control prevents air bubble generation in the first place, ensuring that the liquid is ready for immediate damping force generation without any delay. The system proactively prevents the problem rather than reacting to it after air bubbles form.
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
Prevents the generation of air bubbles, thereby ensuring a timely and effective damping force generation, enhancing the performance and reliability of the pressure shock absorbing apparatus.
Implementation Method 1
a throttle unit that throttles a flow path cross section of the liquid to discharge the liquid taken in from the first cylinder toward the liquid storage unit while passing the liquid through the throttle unit
Implementation Method 2
a suppression unit that is held by the throttle mechanism at a liquid discharge point between the throttle mechanism and the liquid storage unit to suppress air bubbles in the liquid in the liquid storage unit
Data Source
AI summary
A pressure shock absorbing apparatus includes: a first cylinder; a second cylinder that is placed outside the first cylinder to form a liquid storage unit; a partitioning member that is disposed in such a manner as to be movable in an axial direction inside the first cylinder to partition a space inside the first cylinder; a throttle mechanism that is disposed in a side portion of the second cylinder, and includes a throttle unit that throttles a flow path cross section of a liquid to discharge the liquid taken in from the first cylinder toward the liquid storage unit while passing the liquid through the throttle unit; and a suppression unit that is held by the throttle mechanism at a liquid discharge point between the throttle mechanism and the liquid storage unit to suppress air bubbles in the liquid in the liquid storage unit.