Pressure Flow Regulator Simplified Channel Design
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Solution Overview
Problem
Existing pressure/flow regulators require significant production outlay due to complex channel designs, which complicates their manufacturing process.
Innovation Solution
A pressure/flow regulator design featuring a pressure control valve and a flow control valve with simplified channel configurations, where the control connection is relieved to a tank via a control edge of the pressure control valve, allowing for reduced production complexity and incorporating straight channels that intersect valve bores at right angles, enabling easier production and adjustment of valve pistons and springs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex channel designs are used in pressure/flow regulators, then pressure and flow control functionality is achieved, but production outlay and manufacturing complexity increase significantly
Solution Approach 1:
The patent combines the pressure control valve and flow control valve into a single integrated regulator unit with common control pressure connection. The channel design merges multiple functions into unified passages that serve both pressure regulation and flow control, eliminating the need for separate complex channel systems for each valve type.
Solution Approach 2:
The control pressure connection serves multiple functions simultaneously: it provides control pressure to both the pressure control valve and flow control valve, and acts as a common reference for both regulation functions. The channel system is designed to be multi-functional, serving both pressure and flow control purposes through shared passages.
2Reliability
If complex channel designs are used in pressure/flow regulators, then pressure and flow control functionality is achieved, but device complexity increases
Solution Approach 1:
The regulator is segmented into distinct functional modules: a pressure control valve with its own valve piston and spring, a flow control valve with its own valve piston and spring, and a common control pressure connection. Each module can be analyzed and manufactured independently, then assembled into the complete regulator, reducing overall design complexity.
Solution Approach 2:
The patent merges the control pressure systems of both valves into a single common control pressure connection, eliminating the need for separate control pressure channels. This consolidation reduces the number of channels required and simplifies the overall device structure while maintaining full functionality.
3Ease of manufacture
If simplified channel designs are used, then production outlay is reduced, but control precision may be affected
Solution Approach 1:
The simplified channel design relies on the self-regulating properties of the valve pistons and springs to achieve precise control. The valve pistons automatically position themselves based on pressure differential across the control edge, and the springs provide automatic reset force, eliminating the need for complex precision-machined channels while maintaining control accuracy.
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 design reduces production outlay and complexity, allowing for efficient regulation of a variable displacement pump's pivoting angle while maintaining effective pressure and flow control, with prestressed springs counteracting control pressures to correct production tolerances and material fatigue.
Implementation Method 1
a spring (16) which acts in the direction of the rest position of the valve piston (8)
Implementation Method 2
a control pressure which acts on a valve piston (6, 8) to move the valve piston (6, 8) from a rest position
Implementation Method 3
via which a control pressure is generated, which acts on a valve piston (6, 8) to move the valve piston (6, 8) from a rest position
Data Source
AI summary
A pressure/flow regulator includes a pressure control valve, a flow control valve, and a first control connection configured to set a variable displacement pump. The control connection is configured to be discharged to a tank by the flow control valve via a control edge of the pressure control valve that is open in the idle position of a valve piston of the pressure control valve.