Hydraulic Flow-Rate Regulating Device Self-Cleaning Restricted Holes
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Solution Overview
Problem
Existing hydraulic flow-rate regulating devices are prone to blockages due to particles in the hydraulic fluid, which affects their operational noise and efficiency.
Innovation Solution
The device features restricted holes with inlet openings that are cleaned by the perpendicular flow of hydraulic fluid, reducing the risk of blockages and maintaining low noise levels through a self-cleaning mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If restricted holes are provided in the ring to reduce operational noise, then noise level is reduced, but the holes become easily blocked by particles in the hydraulic fluid
Solution Approach 1:
The patent converts the harmful effect of hydraulic fluid flow (which could cause blockages) into a beneficial self-cleaning mechanism. The fluid flow direction is designed to strike the inlet openings of restricted holes perpendicularly, creating a cleaning effect that prevents particle accumulation and blockages, thereby maintaining both low noise and high 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
The self-cleaning mechanism effectively prevents blockages in the restricted holes, ensuring consistent fluid flow and reduced noise, enhancing the operational reliability and performance of the hydraulic flow-rate regulating device.
Implementation Method 1
the hydraulic fluid which strikes said restricted holes acts on the inlet openings thereof in a direction having a major component directed perpendicularly with respect to the axis of said holes. This makes it possible to achieve a self-cleaning effect, reducing the risk of the aforementioned restricted holes becoming blocked.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The regulating device (1) comprises a body (2) including a hub (3) which has a first end (3a) connected to a surrounding ring (4), such as to define therebetween at least one passage (6) for the fluid, between the upstream and downstream regions, and the other or second end (3b) of which protrudes with respect to the ring (4). The ring (4) has, on a surface thereof, an annular distribution of projections (7). On the second end (3b) of the hub (3) there is mounted a flexible, ring-shaped, regulating member (8) facing and spaced from the tops of said projections (7) and capable during use of resiliently flexing towards them as a result of and depending on the difference in pressure between the upstream and downstream regions. The ring (4) is further provided with a plurality of restricted holes (10) having a fluid flow parallel to the at least one passage (6). These restricted holes (10) are formed essentially in the same radial portion (C) of the ring (4) in which the projections (7) are provided such that the holes (10) are circumferentially and radially comprised each between a pair of projections (7).