Engine-Hood Exhaust Venting for Operator Visibility
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Solution Overview
Problem
Existing road pavers and material feeders face issues with exhaust pipes obstructing operator visibility and being prone to damage due to exposure to weather and rust, requiring complex and expensive folding or detachable systems that are difficult to manage.
Innovation Solution
The exhaust pipe is positioned within the engine compartment under the hood, with outlets directed away from the operator, protected from weather, and integrated with a cooling system to prevent overheating and damage, eliminating the need for complex folding mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the exhaust pipe is mounted on the hood to keep exhaust gases away from the operator, then exhaust gas removal is effective, but the operator's visibility is obstructed and the exhaust system is exposed to weather damage
Solution Approach 1:
The exhaust pipe is extracted from the traditional hood-mounted position and relocated to the engine compartment. This removes the obstructive element (exhaust pipe) from the operator's view while maintaining exhaust gas removal functionality through integrated outlets in the hood that channel gases away from the operator.
Solution Approach 2:
The exhaust pipe is nested within the engine compartment space, utilizing the existing enclosed volume. The exhaust system is integrated into the engine bay structure with outlets positioned in the hood, creating a compact nested arrangement that protects the exhaust pipe while maintaining effective exhaust gas discharge.
2Object-generated harmful factors
If the exhaust pipe is mounted on the hood for effective exhaust gas removal, then exhaust gases are directed away from the operator, but the exhaust system is exposed to weather conditions causing rust and damage
Solution Approach 1:
The exhaust pipe is extracted from the external hood-mounted position and relocated to the protected interior of the engine compartment. This removes the exhaust system from direct weather exposure while maintaining effective exhaust gas direction through strategically positioned outlets in the hood.
Solution Approach 2:
The exhaust pipe is positioned within the engine compartment, which serves as a protective enclosure shielding it from weather elements such as rain, snow, and road debris. This preemptive protection prevents rust and damage before they can occur, extending the exhaust system's service life.
3Length of moving object
If a detachable or foldable exhaust pipe is used to maintain transport height, then transport requirements are met, but the exhaust pipe is easily damaged and requires complex installation expertise
Solution Approach 1:
Instead of making the exhaust pipe detachable or foldable to meet transport requirements, the invention inverts the approach by positioning the exhaust pipe permanently within the engine compartment. The exhaust outlets in the hood are designed to accommodate transport position requirements while the exhaust pipe itself remains fixed and protected, eliminating the need for complex detachable mechanisms.
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
Improves operator visibility, protects the exhaust system from damage, extends its lifespan, and simplifies transport by shielding it from adverse conditions while ensuring efficient gas removal and noise reduction.
Implementation Method 1
a cooling airflow generated by a fan and a radiator, exit the opening
Implementation Method 2
a cooling airflow generated by a fan and a radiator
Implementation Method 3
the exhaust pipe includes at least one exhaust outlet nozzle, which directs the exhaust flow
Data Source
Figure 1
Figure 2
AI summary
The machine (100) has an exhaust system (1) comprising an engine compartment (2) that is provided with an engine bonnet (3). An exhaust outlet (6) is provided in the engine bonnet and fluidically aligned with an exhaust pipe (4). The exhaust pipe is provided as an exhaust vent (7) in the engine bonnet for outlet of waste heat from an engine (101). The exhaust outlet and the exhaust vent are configured such that exhaust airstream emitted from the exhaust vent spreads effluent gases from the exhaust outlet to keep-out of the effluent gases from operators.