Screw-In Pressure Intensifier With Hose-Free Hydraulic Coupling
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Solution Overview
Problem
Existing hydraulic pressure amplifiers require connections via hoses or pipes, which can lead to leakage, fatigue, and space issues, especially when cascaded or used in rotating systems, and direct flange-mounting poses sealing and installation challenges.
Innovation Solution
A pressure amplifier design that connects directly to a hydraulic block without hoses or pipes, using a solid cylinder block with a differential piston and a coupling section with fluid transfer areas, ensuring a compact and reliable fluidic connection through seals and external threads, eliminating the need for external piping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure boosters are connected via high-pressure hoses or pipes, then fluid transfer is enabled, but leakage and fatigue occur over time reducing reliability
Solution Approach 1:
The pressure booster is merged with the hydraulic block by integrating the coupling section directly into the cylinder block, eliminating separate hoses and pipes. The fluid transfer areas are positioned to lie inside the hydraulic block, creating a unified structure where the pressure booster becomes an integral part of the hydraulic system, thereby eliminating leakage points and improving reliability.
Solution Approach 2:
A coupling section acts as an intermediary element between the pressure booster and hydraulic block. This coupling section includes fluid transfer areas that enable direct fluid communication without requiring external hoses or pipes, serving as a built-in mediator that eliminates the need for separate connection components while maintaining reliable fluid transfer.
2Stress or pressure
If multiple pressure boosters are cascaded in series, then higher pressure is generated, but space constraints arise
Solution Approach 1:
Multiple pressure boosters are nested within the hydraulic block structure, with coupling sections inserted into receiving bores of the same hydraulic block. This nesting arrangement allows cascaded pressure boosters to share a common hydraulic block, significantly reducing the overall system volume compared to separate mounting while enabling higher pressure generation through series configuration.
3Volume of moving object
If pressure boosters are directly flange-mounted to hydraulic block, then connection space is reduced, but sealing problems occur at high pressures
Solution Approach 1:
The sealing mechanism utilizes hydraulic pressure differentials and fluid pressure to maintain reliable seals at high pressures. The coupling section design incorporates fluid transfer areas that are positioned to lie inside the hydraulic block, where the surrounding hydraulic block structure provides natural containment and sealing support, eliminating the need for complex external sealing arrangements while maintaining sealing reliability under high pressure conditions.
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 design provides a compact, reliable, and leak-proof connection, enabling efficient high-pressure fluid transfer without the limitations of hoses or pipes, even under high pressures and oscillating loads, allowing for cascaded pressure amplification in a compact hydraulic unit.
Implementation Method 1
The control piston is not actuated by a mechanical positive drive like a camshaft, but purely by pressure differential
Implementation Method 2
The pressure intensifier piston is preferably designed as a differential piston with two hydraulically effective piston surfaces of different sizes
Data Source
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AI summary
Pressure intensifier for fluids, in particular for liquids, consisting of a cylinder block in which a pressure intensifier piston and a control piston move cyclically, the pressure intensifier piston forming a high-pressure working space and a low-pressure working space in the cylinder block, and the cylinder block having a low-pressure connection for feeding in low-pressure fluid from externally, a high-pressure port for discharging working fluid at a higher pressure to the outside and a port for discharging fluid whose working capacity in the pressure intensifier has been exhausted, the cylinder block having a coupling portion rigidly connected thereto which can be inserted into a receiving bore of a hydraulic block can be introduced and fixed there, so that the receiving bore encloses the coupling section, the coupling section having at least two fluid transfer regions fluidically separated from one another by a seal for exchanging fluids h of fluid between the intensifier and the hydraulic block in which it is inserted.