Engine Supercharger Piping Flush Mounting
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Solution Overview
Problem
Existing engine devices with high pressure and low pressure superchargers face challenges in compact installation and maintenance due to protruding exhaust and intake pipes, which hinder compact piping structures and pose safety risks for operators due to proximity to operational areas.
Innovation Solution
The engine device features a two-stage supercharger configuration where the first and second superchargers are divided on opposed side faces, with exhaust and intake pipes extending flush with the engine's head-cover height, supported by connection brackets, and attachment components strategically positioned to minimize operator exposure to heat and enhance operational safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the first supercharger and second supercharger are disposed on opposed side faces of the engine, then the installation height dimension can be compacted, but the exhaust pipes and intake pipe protrude from the side face portion toward the outward side
Solution Approach 1:
The patent transitions from a vertical arrangement (superchargers on opposed side faces) to a horizontal arrangement (superchargers on the same side face), changing the spatial dimension in which the piping structure is organized. This allows the exhaust and intake pipes to be routed along the engine block in a planar configuration rather than protruding outward, achieving compact piping while maintaining compact height dimension.
2Shape
If the exhaust pipes and intake pipe are disposed closer to the side face portion of the engine block, then the piping structure can be compacted, but the attachment components must be disposed on the other side face, causing easy movement of the operator
Solution Approach 1:
The patent merges the arrangement of attachment components with the piping structure by positioning both the exhaust pipes, intake pipe, and attachment components on the same side face of the engine block. This unified arrangement eliminates the need for operators to move between different sides of the engine, improving operational stability while maintaining piping compactness.
3Shape
If the first supercharger and second supercharger are disposed on the same side face of the engine, then the piping structure can be compacted, but the installation height dimension becomes large
Solution Approach 1:
The patent segments the engine assembly into distinct functional zones: the superchargers are positioned in the upper region while the piping structure and attachment components are arranged in the lower region. This vertical segmentation allows the piping to remain compact horizontally while the overall installation height dimension is maintained through organized spatial distribution of components.
Data Source
AI summary
An engine device in which exhaust pipes and an intake pipe can be mounted highly rigidly by using an upper face corner of a cylinder block in an engine, and a support structure of the exhaust pipes and the intake pipe can be simplified. In an engine device in which a first supercharger and a second supercharger are disposed in series on an exhaust gas discharge path of an engine, the engine device has a structure in which the first supercharger and the second supercharger are disposed to be divided on opposed side faces of the engine, and an upper side exhaust pipe between the engine and the first supercharger, a lower side exhaust pipe between the first supercharger and the second supercharger, and an intake pipe between the first supercharger and the second supercharger extend to be substantially flush with one another at a head-cover disposed-height of an upper face of the engine.