Off-Road Engine Supercharger Layout for Compact Air Pressurization
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Solution Overview
Problem
Existing off-road vehicles equipped with turbochargers face challenges in efficiently increasing intake air pressure and managing heat, which affects engine performance and layout compactness.
Innovation Solution
The integration of a supercharger with a housing and a pressurization rotating body that increases intake air pressure, positioned outside the cylinder block in the axial or width direction, allows for efficient air pressure enhancement and compact engine layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a turbocharger is used to increase intake air pressure, then engine performance is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent combines the supercharger housing with the engine cylinder block by positioning the housing outside the cylinder block in the axial direction, creating an integrated structure that reduces overall device complexity while maintaining the air pressure enhancement function
Solution Approach 2:
The supercharger housing is positioned in the axial direction of the crank shaft rather than occupying additional radial space, utilizing the axial dimension to accommodate the supercharger components without increasing the engine's overall footprint
2Volume of moving object
If a supercharger housing is positioned outside the cylinder block, then layout compactness is improved, but manufacturing complexity increases
Solution Approach 1:
The supercharger system is segmented into a housing and a pressurization rotating body, allowing the housing to be positioned outside the cylinder block in the axial direction while keeping the rotating body integrated, facilitating both compact layout and manageable manufacturing
Solution Approach 2:
The housing is positioned outside the cylinder block in the axial direction of the crank shaft, utilizing the axial dimension to achieve compact layout without interfering with the radial space requirements of the cylinder block and other engine components
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 enhances engine performance by ensuring efficient air pressure increase and improves the layout compactness by reducing the space occupied by the supercharger, allowing for better freedom in part arrangement.
Implementation Method 1
a pressurization rotating body accommodated in the housing, and increases pressure of intake air, which is to be supplied to the internal combustion engine, by rotation of the pressurization rotating body
Data Source
AI summary
An off-road vehicle includes: an internal combustion engine including a crank shaft and a cylinder block including a cylinder; and a supercharger that includes a housing and a pressurization rotating body accommodated in the housing, and increases pressure of intake air, which is to be supplied to the internal combustion engine, by rotation of the pressurization rotating body. The housing is located outside the cylinder block in an axial direction of the crank shaft.