Modular Pump Assembly for Variable Hammer Flow Capacity
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Solution Overview
Problem
Existing liquid-powered drills/hammers face inefficiencies and high costs due to the need for different pump sizes, with current systems being large, heavy, and inefficient when operating small to medium hammers, and manufacturing multiple pump sizes is costly and time-consuming.
Innovation Solution
A modular pumping assembly comprising multiple independent pump modules, each with an electric motor, connected via an outlet manifold for parallel operation, and equipped with a control system for coordinated operation and pressure relief, allowing flexible capacity adjustment and efficient performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple pump sizes are manufactured to handle different liquid flows, then the system can meet different capacity requirements, but the manufacturing cost and time increase
Solution Approach 1:
The system is divided into multiple identical pump modules that can be independently manufactured and then combined in different quantities (1, 2, or more) to meet different capacity requirements. This segmentation allows standardization of manufacturing while providing versatility through modular combination.
Solution Approach 2:
A single pump module design serves multiple functions by being capable of operating independently or in parallel with other identical modules. The universal design allows the same module to adapt to different capacity needs through simple addition or removal, eliminating the need for multiple specialized pump sizes.
2Productivity
If a single large pump is used to handle maximum liquid flow, then the capacity is sufficient for large hammers, but the system is inefficient when operating small to medium hammers
Solution Approach 1:
Instead of using one large pump, the system segments the pumping capacity into multiple smaller identical modules. When operating small to medium hammers, only the necessary number of modules are activated, ensuring each operating module works at optimal efficiency while still meeting the required liquid flow capacity.
Solution Approach 2:
The system dynamically adjusts the number of active pump modules based on the actual hammer size and liquid flow requirements. This dynamic configuration allows the system to optimize energy efficiency by running fewer modules at full capacity rather than one large module at partial capacity.
3Adaptability or versatility
If two pumps are mounted in a common enclosure, then the system can supply one or two hammers, but the enclosure becomes large and heavy
Solution Approach 1:
The system segments the pump units into separate, independent modules rather than housing them in a single large enclosure. Each module can be transported and deployed independently, significantly reducing the weight and size of individual units while maintaining the capability to supply one or multiple hammers through parallel operation.
Solution Approach 2:
Instead of combining pumps in one large enclosure (3D consolidation), the system uses separate modular units that can be distributed across different locations or transported separately. This dimensional separation reduces the weight burden on any single unit while preserving system versatility.
4Adaptability or versatility
If different sizes of high-pressure pumps are manufactured, then the system can handle different liquid flows, but the distribution and transportation become complex
Solution Approach 1:
The system segments the pumping capability into identical standardized modules rather than manufacturing different sized pumps. This segmentation simplifies distribution and transportation since all modules are the same size and weight, while still achieving liquid flow adaptability through simple numerical addition of modules.
Solution Approach 2:
Instead of changing the physical dimensions and specifications of pumps to achieve different liquid flows, the system changes the parameter of module quantity. This approach simplifies device complexity by keeping each module identical while achieving versatility through parameter (number of modules) adjustment.
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 modular design enables versatile capacity adjustment, simplifies transportation, and achieves high efficiency at both full and partial loads, reducing costs and size/weight compared to traditional systems.
Implementation Method 1
at least one electric motor arranged to drive said at least one liquid pump
Implementation Method 2
at least one liquid pump...configured to provide a maximum liquid pressure of 120-240 bar
Data Source
AI summary
A pumping assembly for providing pressurized liquid to a liquid propelled drill or hammer is provided. The pumping assembly includes at least two pump modules, each including at least one liquid pump, at least one electric motor arranged to drive said at least one liquid pump, and a liquid outlet for providing pressurized liquid from the at least one liquid pump, and an outlet manifold connecting the liquid outlets of the at least two pump modules in parallel to provide a common liquid outlet for connection to said liquid propelled drill or hammer. The pump modules are each configured to provide a liquid flow of 200-600 l/min.