Dual-Impeller Electric Compressor Intake Layout for Shorter Axial Length
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Solution Overview
Problem
Existing electric compressors are lengthened in the axial direction due to the placement of suction ports on both ends, leading to a larger size.
Innovation Solution
The electric compressor design includes an intake manifold pipe branching off to supply gas to two housings, with intake ports oriented orthogonally to the shaft, and a compact pipe structure where the intake and outlet manifold pipes are positioned on one side of the shaft, reducing the axial length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If suction ports are placed on both end sides of the electric compressor in the axial direction, then gas can be supplied to both housings, but the electric compressor becomes lengthened in the axial direction resulting in a larger size
Solution Approach 1:
The intake ports are arranged in the radial direction instead of the axial direction, changing the spatial dimension of gas intake. This allows the intake manifold pipe to supply gas to both housings from a single location, eliminating the need for suction ports at both axial ends and thereby reducing the axial length of the compressor.
2Length of moving object
If intake ports are oriented orthogonally to the shaft and intake manifold pipe is used, then axial length is reduced, but gas flow efficiency and pressure loss become concerns
Solution Approach 1:
The intake manifold pipe is designed with optimized local geometry including branching structures and connection portions that maintain smooth gas flow. The pipe configuration locally adapts to minimize flow resistance and pressure loss while achieving the compact axial layout, ensuring efficient gas distribution to both housings.
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 configuration results in a smaller-sized electric compressor with improved gas flow efficiency and reduced pressure loss, enhancing overall performance.
Implementation Method 1
an impeller (5) that rotates about the rotation axis (CA)
Data Source
AI summary
An electric compressor comprising: an electric motor; a rotation shaft configured to be driven by the electric motor; two impellers respectively provided to both ends of the rotation shaft; two housings that respectively contain the two impellers; and an intake manifold pipe configured to branch off from one intake pipe to supply air to each of the two housings. Each of the two housings includes an intake port which opens in a direction intersecting the axial direction of the rotation shaft and to which the intake manifold pipe is connected.