Flow Rate Control Valve for Hydraulic Actuator Fluid Balance
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Solution Overview
Problem
Conventional hydraulic systems for working devices face challenges in efficiently controlling the flow rate of hydraulic fluid, particularly in scenarios where simultaneous operation of multiple hydraulic actuators requires precise fluid management to prevent fluid starvation and ensure balanced operation.
Innovation Solution
The implementation of a flow rate control valve system that includes a spool with specific connecting portions and flow lines, allowing for the connection and disconnection of fluid lines to manage the flow rate effectively, ensuring that hydraulic fluid can be efficiently distributed between hydraulic actuators, even during combined operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple hydraulic actuators operate simultaneously, then working device functionality is improved, but hydraulic fluid distribution becomes unbalanced causing fluid starvation
Solution Approach 1:
The hydraulic circuit is segmented into multiple independent flow paths with separate flow control valves for each actuator. This allows individual control of fluid flow to each actuator, preventing fluid starvation and ensuring balanced operation during simultaneous multi-actuator operation.
Solution Approach 2:
Flow control valves with spools act as intermediaries between the hydraulic pump and each actuator. These intermediaries regulate and balance the fluid flow distribution, enabling simultaneous operation of multiple actuators without compromising fluid supply balance.
2Reliability
If flow rate control is added to manage hydraulic fluid distribution, then fluid distribution balance is improved, but device complexity increases
Solution Approach 1:
Multiple flow control functions are merged into a single integrated flow control valve assembly that handles multiple actuators. The spool mechanism combines flow regulation and distribution control in one component, reducing overall system complexity while maintaining balanced fluid distribution.
Solution Approach 2:
The flow control valve system is designed with multi-functionality to handle multiple actuators simultaneously. The spool mechanism can regulate flow to different actuators based on operational requirements, providing universal control capability that reduces the need for separate control mechanisms.
Data Source
AI summary
A flow rate control valve includes a first flow line to connect to a first fluid line connected to a hydraulic actuator, a second flow line to connect to a second fluid line connected to the hydraulic actuator, a third flow line to connect to a third fluid line connected to a hydraulic pump, a fourth flow line to connect to an operation fluid tank or a fourth fluid line connected to a suction portion of the hydraulic pump, a fifth flow line to connect a first control valve and a second control valve, and a spool including a first connecting portion being configured to connect the first flow line and the third flow line at a first position and to connect the first flow line and the fifth flow line at a second position.