Pressure Regulator Valve Bearings for Smooth Sliding Under Tilt
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing regulators for high-pressure fluid pressure regulation suffer from frictional resistance at contact points between the piston and pressure regulating valve body, leading to non-smooth sliding and performance deterioration due to increased clearances at these contact points.
Innovation Solution
The introduction of low-friction annular bearings made of rigid synthetic resins like hard vinyl chloride resin and polypropylene resin, which are inserted into grooves on the piston and valve seat sides, preventing contact between the piston and inner wall when the valve body tilts, thus eliminating frictional resistance and ensuring smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the piston pressure regulating valve slides reciprocally in the passage, then the pressure regulation function is achieved, but frictional resistance is generated at contact portions causing performance deterioration
Solution Approach 1:
The patent introduces a guide portion with a guide surface that acts as an intermediary between the piston pressure regulating valve and the passage wall. This guide surface provides a controlled contact interface that reduces frictional resistance compared to direct contact between the valve body and passage wall, thereby maintaining pressure regulation performance while reducing harmful friction effects
Solution Approach 2:
The patent modifies the geometric parameters of the contact interface by designing a specific guide portion with a guide surface having predetermined curvature and dimensions. This parameter optimization reduces the contact area and improves the distribution of contact forces, thereby reducing frictional resistance and preventing performance deterioration
2Ease of operation
If the piston pressure regulating valve tilts during sliding, then clearance changes occur, but friction increases and smooth sliding is compromised
Solution Approach 1:
The guide portion serves as a mediator that accommodates the tilting motion of the piston pressure regulating valve. The guide surface is designed to maintain continuous contact during tilting, providing a low-friction interface that allows smooth operation even when the valve angle changes during reciprocating motion
Solution Approach 2:
The patent designs the guide portion to dynamically adapt to the tilting motion of the piston pressure regulating valve. The guide surface geometry allows the contact point to shift during tilting, maintaining optimal contact conditions throughout the motion cycle and ensuring smooth sliding despite angular variations
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 solution prevents functional loss and performance deterioration by maintaining smooth sliding of the piston pressure regulating valve, even during tilting, by eliminating frictional resistance and ensuring the annular bearings remain securely in place without protruding seal members.
Implementation Method 1
a piston portion 6 surrounded and fixed to an outer periphery of the takeout port 22 side in the passage of the pressure regulating valve body 5 is provided so as to be slidable in the axial direction of the passage 2 and urged in a direction of the takeout port 22 in the passage 2 by a pressure regulating spring 8 that has a predetermined load
Implementation Method 2
a fluid adjusted to a desired pressure is taken out from the takeout port 22 by controlling a fluid pressure in the pressure regulating chamber 4 by changing opening areas of the valve-seat seat 31 and the pressure regulating valve body 5 by balancing a load by a pressure of a fluid... acting on the piston portion 6 joined to the pressure regulating valve body 5, and a load by the pressure regulating spring 8 acting on the piston portion 6
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
In regulators, prevent functional loss due to tilting of a piston pressure regulating valve (7). At least a pair of annular bearings (10a, 10b) made of a rigid synthetic resin are interposed along a length direction of a pressure regulating valve body (5) at a predetermined distance at a position on a valve seat side in an axial direction of a gap (9) formed between the pressure regulating valve body (5) and an inner wall (25) of a passage (2) formed in a body main body (1).