Integrated Air Supply Unit With Two-Stage Compression Control
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Solution Overview
Problem
Existing motor vehicle air suspension systems face challenges with low adjustment sensitivity due to single-stage compression methods, resulting in inefficient compressed air control with low output gas pressure.
Innovation Solution
A compressed air control device is designed with a housing containing an electric motor, air dryer, and a two-piston compressor, along with a valve assembly and electronic control device, to enhance air compression efficiency and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single-stage compression method is used, then the output gas volume is large, but the output gas pressure is low
Solution Approach 1:
The compression process is divided into multiple stages (first compression stage and second compression stage), with each stage having its own piston and cylinder. The first piston compresses air to intermediate pressure, and the second piston further compresses it to high pressure, resolving the contradiction between maintaining gas volume and achieving high pressure.
Solution Approach 2:
The patent introduces a dual-piston configuration where two compression actions occur simultaneously or sequentially, adding a dimensional aspect to the compression process. This allows the system to achieve both high pressure and maintain adequate gas volume by operating two compression stages in parallel or series.
2Device complexity
If a single-stage compression method is used, then the compressor structure is simple, but the adjustment sensitivity of the air suspension system is low
Solution Approach 1:
The compressor is segmented into two independent compression stages with separate pistons, cylinders, and valve assemblies. This segmentation allows for more precise control of compression parameters, improving adjustment sensitivity while keeping each individual stage relatively simple in structure.
Solution Approach 2:
The dual-piston system enables dynamic control of compression parameters by independently adjusting the operation of each piston. This dynamic capability enhances the adjustment sensitivity of the air suspension system without requiring overly complex mechanical structures.
3Stress or pressure
If a two-piston compressor with multiple compression stages is used, then the output gas pressure is high, but the device complexity increases
Solution Approach 1:
The patent merges the two compression stages into a single integrated compressor unit with a common crankcase, shared lubrication system, and unified control mechanism. This merging approach achieves high output pressure through dual pistons while minimizing the increase in overall device complexity by sharing common components.
Solution Approach 2:
The compressor design incorporates universal components that serve multiple functions: the crankcase houses both pistons, the lubrication system serves both compression stages, and the control mechanism manages both valves. This multi-functionality reduces device complexity while maintaining high pressure capability.
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 solution achieves higher pressure air output, improving the adjustment sensitivity of the air suspension system, and integrates electronic control for efficient operation and reduced application costs.
Implementation Method 1
a first compression stage adapted for compressing gas from a low pressure to an intermediate pressure and including a first piston connected to reciprocate in a first cylinder, a second compression stage adapted for compressing gas from the intermediate pressure to a higher pressure and including a second piston connected to reciprocate in a second cylinder
Implementation Method 2
The housing may comprise an electric motor
Implementation Method 3
The housing may comprise an electric motor and an air dryer
Data Source
AI summary
The patent application discloses a compressed air control device. The compressed air control device for a source of compressed air on motor vehicles may comprise a housing. The housing may include an air inlet opening located at an outside surface of the housing. The housing comprises an electric motor and an air dryer. The air dryer together with the electric motor forms a first functional unit.