Fuel Pump Flow Passage Venting Structure for Lower Resistance
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Solution Overview
Problem
The existing portable fuel pump flow passage structures are complex, leading to high production costs, fluid flow resistance, and potential oil leakage due to zigzag corrugated pipelines and two-way ventilation valves.
Innovation Solution
A modular fuel pump flow channel passage structure with an adapter, air vent valve, and sealing plug, featuring cylindrical inner walls, corrugated pipelines, and a one-way air vent valve to enhance fluid flow and prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the flow passage structure is integrated with the pump housing, then the structure is compact, but the production and assembly process becomes complicated and costs increase
Solution Approach 1:
The flow passage is separated from the pump housing into an independent modular component. This segmentation allows the flow passage to be manufactured, assembled, and maintained separately, reducing overall system complexity while maintaining compact integration through standardized connections.
2Adaptability or versatility
If zigzag corrugated pipelines are used in the flow passage, then flexibility is improved, but fluid flow resistance increases
Solution Approach 1:
The corrugated structure is applied selectively only in sections where flexibility is required, while smooth straight sections are used in areas where fluid flow is critical. This local application of corrugation maintains necessary flexibility while minimizing flow resistance in the majority of the passage.
3Reliability
If two-way ventilation valves are used in the flow passage, then air venting function is provided, but the structure becomes complex and oil leakage occurs
Solution Approach 1:
Instead of using a complex two-way ventilation valve that allows bidirectional flow, a one-way check valve is employed that permits air to escape in one direction while preventing fuel from leaking back. This inversion of the ventilation approach simplifies the structure and eliminates leakage issues.
Data Source
AI summary
A novel fuel pumpflow channel passage structure, which comprises an adapter, an air vent valve and a sealing plug, wherein the adapter comprises a body, an input end and an output end; the input end is communicated with the output end through the body; both the input end and the output end have cylindrical inner wall surfaces roughly varying in axial diameters; the input end and the output end define an input pipeline and an output pipeline along the cylindrical inner wall surfaces; the body is provided with an air vent hole and a through hole; the air vent valve is arranged on the air vent hole; and the sealing plug is arranged on the through hole.