Parallel Pressure-Boosting Circuit for Continuous Hydraulic Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fluid circuits require complex control systems and electromagnetic switching valves, leading to increased size and cost, as well as complications in programming and noise/vibration issues due to peak pressure fluctuations.
Innovation Solution
A fluid circuit design with parallel-connected pressure-increasing devices, each with offset piston strokes and phases, utilizing pilot switching valves and throttles to manage fluid flow, reducing peak pressure and noise through synchronized piston movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electromagnetic switching valves are used to control piston reciprocation, then continuous pressure increase can be achieved, but device complexity and size increase
Solution Approach 1:
The patent replaces electromagnetic switching valves with a purely mechanical piston reciprocation mechanism. The pistons automatically reciprocate through pressure differential forces acting on their surfaces, eliminating the need for electromagnetic control systems, sensors, and complex programming while maintaining continuous pressure increase capability
Solution Approach 2:
The pressure-increasing devices use self-reciprocating pistons that automatically switch directions based on pressure differentials without external control signals. The system serves itself through the inherent pressure forces, eliminating the need for external electromagnetic switching valves and complex control systems
2Productivity
If electromagnetic switching valves are used to control piston reciprocation, then continuous pressure increase can be achieved, but system size increases
Solution Approach 1:
The patent eliminates electromagnetic switching valves, position sensors, and control electronics, replacing them with a compact mechanical reciprocation system based on pressure differentials. This significantly reduces the overall system size while maintaining continuous pressure increase functionality
3Device complexity
If single pressure-increasing device is used, then simple configuration is achieved, but peak pressure fluctuations cause vibration and noise
Solution Approach 1:
The patent divides the pressure-increasing function into multiple parallel devices (first and second pressure-increasing devices with offset pistons). This segmentation allows the peak pressures from different devices to occur at different times, reducing overall vibration and noise while maintaining configuration simplicity
Solution Approach 2:
The patent uses periodically reciprocating pistons with offset phases in parallel pressure-increasing devices. The periodic action with phase offset creates a smoother overall pressure output, reducing peak pressure fluctuations and associated vibration and noise
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 achieves a simple configuration for continuous pressure increase with reduced noise and vibration by offsetting piston phases and using parallel chambers as buffers, thereby simplifying control and reducing system size and cost.
Implementation Method 1
a piston (120) provided inside the cylinder (110) so as to be reciprocatable in an axial direction, and delivers, from the cylinder (110), the working fluid having the pressure which is increased due to a movement of the piston (120) toward a pressure-increasing chamber (10-2) inside the cylinder (110) by the working fluid delivered from the fluid supply device (6)
Data Source
AI summary
There is provided a fluid circuit capable of continuously driving pressure-increasing devices with a simple configuration. A plurality of pressure-increasing devices are connected in parallel to a fluid supply device that delivers a working fluid. A stroke direction of the piston of each of the pressure-increasing device is switched by the working fluid. A phase of the piston of one pressure-increasing device is different from a phase of the piston of the other pressure-increasing device.