Oleodynamic Damper with Adjustable Conical Pin Valves
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Solution Overview
Problem
Existing hydraulic shock absorbers require disassembly to adjust oil flow between chambers for compression and extension stages, leading to delayed responses to dynamic and road-induced stresses.
Innovation Solution
A shock absorber design with a piston mounted on a cylindrical body featuring separate, adjustable channels and valves, allowing independent control of oil flow during compression and extension without disassembly, using conical pins and adjustable screws to regulate valve positions and cross-sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If blade valves are replaced to adjust oil flow between chambers, then the damping characteristics can be modified, but the shock absorber requires disassembly and the system response is delayed
Solution Approach 1:
The patent applies the dynamics principle by making the valve system adjustable during operation rather than requiring static replacement of blade valves. The conical pin with adjustable position allows the valve opening to be dynamically modified while the shock absorber is in service, enabling real-time adjustment of damping characteristics without disassembly of the main body.
Solution Approach 2:
The patent segments the valve control function into a separate adjustable component (conical pin with rod) that can be independently modified. This segmentation allows the valve opening area to be adjusted separately from the main shock absorber structure, enabling modification of damping characteristics without requiring disassembly of the entire device.
2Adaptability or versatility
If blade valves are replaced to adjust oil flow between chambers, then the damping characteristics can be modified, but the response time to dynamic stresses is delayed
Solution Approach 1:
The adjustable conical pin valve allows immediate modification of the valve opening area in response to dynamic stresses. The rod mechanism can be quickly repositioned to change the damping characteristics without the time-consuming process of disassembling and replacing blade valves, thereby reducing response delay while maintaining adaptability.
3Adaptability or versatility
If separate adjustment of compression and extension response is implemented, then independent control of oil flow is achieved, but the device complexity increases
Solution Approach 1:
The patent segments the oil flow control into separate channels (first and second channels) with independent adjustable valves (first conical pin and second conical pin). This segmentation enables independent adjustment of compression and extension response characteristics. Each channel has its own rod and adjustment mechanism, allowing separate control without requiring complex integrated systems.
Solution Approach 2:
The patent applies local quality by providing different adjustment capabilities at different locations within the shock absorber. The first conical pin controls the first channel for one direction of movement, while the second conical pin controls the second channel for the opposite direction. This localized control approach enables independent adjustment of compression and extension characteristics with relatively simple individual components.
4Speed
If adjustable valves with conical pins and rods are used, then immediate response to adjustment is achieved, but the manufacturing complexity increases
Solution Approach 1:
The conical pin with adjustable rod provides immediate response to adjustment inputs. When the rod is moved, the conical pin directly modifies the valve opening area without mechanical delays or intermediate mechanisms. This dynamic adjustment mechanism achieves fast response while using relatively simple geometric forms (conical shapes) that are straightforward to manufacture using standard machining processes.
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
Enables immediate and separate adjustment of system response for compression and extension, eliminating the need for disassembly and reducing response delays, while maintaining simplicity and cost-effectiveness.
Implementation Method 1
The passage of oil through these holes, in the extension and compression stages, determines dissipation of energy that results in the desired damping
Implementation Method 2
a cylinder containing oil, with the upper base exhibiting an eyelet (2) for its anchoring to the suspended mass of a vehicle
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Oleodynamic damper comprising a cylinder (1) containing hydraulic oil, a piston (3) which is solid with a stem (4) which passes centrally through the lower base of the cylinder (1) and is solid with a foot (5) of the damper, a spring (7) positioned between a metal ring (8) screwed on the external surface of the cylinder (1) and a support provided by the said foot (5), wherein said piston separates the internal volume of the cylinder (1) into two chambers and is provided with openings for the passage of oil from one of said chambers to the other chamber during the compression and respectively the extension phase, and comprising means for separately adjusting the quantity of oil flowing between said two chambers. Said adjusting means are disposed and acting on a portion (40) of the stem (4) where the piston (3) is supported.