Two-Stage Pump Structure for Dual-Stroke Tire Inflation
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Solution Overview
Problem
Existing tire inflation systems are inefficient, require high energy input, and are not modular, leading to increased wear and limited compatibility with different wheel types.
Innovation Solution
A two-stage pump design that pressurizes fluid during both forward and backward strokes, utilizing a modular and self-contained structure with a passive or active force mechanism, allowing for efficient operation and easy attachment to various wheel types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a single-stage pump design is used, then the device complexity is low, but the energy efficiency is poor and high energy input is required
Solution Approach 1:
The pump is divided into two independent stages: a first stage that pressurizes fluid during the backward stroke and a second stage that pressurizes fluid during the forward stroke. This segmentation allows each stage to operate independently at optimized pressure differentials, improving overall energy efficiency while maintaining manageable structural complexity through modular design
2Adaptability or versatility
If a fixed pump design is used, then the manufacturing precision is high, but the adaptability to different wheel types is limited
Solution Approach 1:
The pump design incorporates adjustable mounting features that allow the pump to be dynamically configured for different wheel types and positions. The mounting bracket system enables adjustment of mounting surfaces and angles, providing versatility across applications while maintaining manufacturing precision through standardized adjustment mechanisms
3Ease of repair
If a non-modular pump design is used, then the device complexity is low, but the ease of repair and replacement is poor
Solution Approach 1:
The pump is designed as a modular assembly with distinct stages and components that can be independently serviced or replaced. The first and second stages are separated into functional modules that can be maintained independently, improving ease of repair while the standardized modular interfaces keep the overall device complexity manageable
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 two-stage pump design achieves higher pressure differentials with lower energy input, reduces wear, and allows for easy replacement and adaptation to different wheels, enhancing efficiency and versatility.
Implementation Method 1
a piston and a cylinder cooperatively defining a first stage in front of the piston and a second stage behind the piston
Data Source
AI summary
In variants, a two-stage pump can include a piston and a cylinder cooperatively defining a first stage in front of the piston fluidly connected to a second stage behind the piston, wherein a forward stroke of the piston pressurizes working fluid in the first stage and forces pressurized working fluid into the second stage, and a backward stroke of the piston further pressurizes working fluid in the second stage and exhausts pressurized working fluid out a pump exhaust.