Compressor Wheel Fluid Passage for Air Flow Rate
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Solution Overview
Problem
The existing compressor wheels in turbochargers have limited air flow rate, which restricts the efficiency of air compression in internal combustion engines.
Innovation Solution
A compressor wheel design featuring a wheel part with a through hole and protruded blades, a shaft part accommodated within the hole, and connection parts forming a fluid passage between the inner side of the wheel and shaft, allowing fluid to flow from the front to the rear side, enhancing air flow and compression efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If blades of the compressor wheel are designed to increase air flow rate, then compression efficiency is improved, but the air flow rate of a single compressor wheel is limited
Solution Approach 1:
The compressor wheel is divided into a front compressor wheel and a rear compressor wheel, with each wheel having its own set of blades. This segmentation allows the system to process air through multiple independent compression paths simultaneously, thereby increasing the overall air flow rate without overcomplicating the design of a single wheel.
Solution Approach 2:
The invention introduces a new dimension to the compressor wheel design by adding a rear compressor wheel behind the front wheel, creating a multi-stage compression structure. This dimensional expansion from a single wheel to a dual-wheel configuration enables increased air flow rate while maintaining manageable structural complexity through modular design.
2Productivity
If multiple compressor wheels are used to increase flow rate of compressed air, then compression efficiency is improved, but device complexity increases
Solution Approach 1:
The front compressor wheel and rear compressor wheel are merged into a single integrated assembly that rotates together on a common shaft. This merging approach allows multiple compression stages to operate in unison, increasing the overall flow rate of compressed air while avoiding the complexity of separate drive mechanisms for each wheel.
Solution Approach 2:
The common shaft serves multiple functions by simultaneously driving both the front compressor wheel and the rear compressor wheel. This multi-functionality design enables the system to achieve increased compressed air flow rate without adding separate drive systems, thereby controlling device complexity while improving productivity.
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 significantly increases the flow rate of compressed air, improving the overall compression efficiency of the fluid compression device, enabling simultaneous operation of multiple compressor wheels to enhance performance.
Implementation Method 1
a fluid passage is formed between the inner side of the main body and the shaft part to allow fluid to flow to a rear side of the compressor wheel from a front side of the compressor wheel via the fluid passage
Implementation Method 2
a plurality of first blades protruded from an outer side of the main body for guiding fluid in the first accommodation space to the first passage
Data Source
AI summary
A compressor wheel of a fluid compression device includes a wheel part, a shaft part and a plurality of connection parts. The wheel part includes a main body formed with a through hole, and a plurality of blades protruded from an outer side of the main body. The shaft part is accommodated in the through hole and configured to connect to a rotor shaft. The plurality of connection parts is connected between an inner side of the main body and the shaft part. Wherein, a fluid passage is formed between the inner side of the main body and the shaft part to allow fluid to flow to a rear side of the compressor wheel from a front side of the compressor wheel via the fluid passage.