Hydraulic Connection Group With Pull-Type Line Decompression
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Solution Overview
Problem
Existing hydraulic connection groups face issues with self-compression during use, leading to malfunctions, and require high coupling forces due to pressurized fluid, especially when connecting hydraulic lines to equipment with integrated decompression systems.
Innovation Solution
A hydraulic connection group with an integrated decompression system that allows for frontal maintenance and uses interchangeable flat-faced female couplings, featuring a 'pull' type decompression cartridge operated by a front grip knob, and includes shutting cartridges with one-way valves to manage pressure differentials between hydraulic lines, ensuring safe and effortless connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a decompression system is integrated into the hydraulic connection group, then the pressure in the hydraulic lines is reduced and connection effort is lowered, but the system may go into self-compression causing malfunction
Solution Approach 1:
The decompression cartridge is pre-positioned in the manifold with sealing elements in place before hydraulic lines are connected. The system is designed to maintain sealing integrity during the connection process, preventing premature decompression that could cause self-compression malfunctions while still enabling easy decompression when needed for connection operations.
2Adaptability or versatility
If the manifold is mounted on the operating machine, then the hydraulic connection group is integrated into the machine's hydraulic circuit, but the rear area of the manifold becomes difficult to access for maintenance
Solution Approach 1:
The hydraulic connection group is divided into modular components including the manifold, decompression cartridge, shutting cartridges, and quick couplings that can be independently accessed and maintained. The front grip knob and front access to the decompression cartridge allow maintenance operations to be performed from the front of the machine without requiring rear access to the manifold.
3Power
If high pressure fluid is present in the hydraulic circuit, then the hydraulic system can drive equipment effectively, but the coupling force required to connect lines becomes insurmountable
Solution Approach 1:
The decompression cartridge extracts and removes pressure from the hydraulic lines by providing a controlled decompression path to the return line. This allows the hydraulic lines to be decompressed before connection, reducing the coupling force required to connect quick couplings while maintaining full hydraulic power during operation.
4Reliability
If female cartridges are used in the manifold, then decompression and oil drainage is enabled, but the system requires specific equipment and can only be accessed from the rear
Solution Approach 1:
Instead of accessing the decompression system from the rear of the manifold as in conventional designs, the decompression cartridge is designed with a front grip knob and front access points. This inverts the access direction, allowing maintenance and operation of the decompression system from the front of the machine where the operator naturally stands, eliminating the need for rear access.
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 system effectively decompresses hydraulic lines, reducing connection effort and preventing malfunctions, allowing safe and easy coupling of hydraulic lines without the need for rear access to the manifold, even under high pressure conditions.
Implementation Method 1
shutting cartridges with one-way valves to manage pressure differentials between hydraulic lines
Implementation Method 2
pull type decompression cartridge, that is, it can be operated by the operator pulling the shaped stem of a decompression cartridge
Data Source
AI summary
A hydraulic group for connecting the hydraulic circuit on board an operating machine to the hydraulic circuit of a utility with an improved decompression system includes a “pull” type decompression system, which it can be operated, by the pulling or the rotating and pulling by an operator of a shaped stem, a decompression cartridge, so that single couplings can be inserted into the manifold of the hydraulic group.