Seat Console Fresh Air Layout for Road Paver Fume Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ventilation systems on road construction machines, such as road pavers, obstruct the operator's view and are inefficient in preventing bitumen-containing fumes from reaching the operator's workstation, despite providing general ventilation.
Innovation Solution
A fresh air system integrated into the seat console of the road construction machine, which supplies filtered air directly to the operator's vicinity, using a fan unit and filter system positioned beneath the console, with adjustable nozzles and air ducts to create a localized fresh air atmosphere.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional ventilation system is installed on the road paver, then bitumen fumes can be extracted from above the auger chamber, but the system takes up considerable space and obstructs the operator's view to the rear of the screed
Solution Approach 1:
The fresh air system is integrated into the vertical space of the seat console rather than occupying horizontal space above the screed. The fan unit and filter are positioned beneath the console base, utilizing the vertical dimension and existing structural space, thereby eliminating view obstruction while maintaining fume extraction capability
Solution Approach 2:
The fresh air system components (fan unit, filter, air ducts) are nested within the existing seat console structure. The fan unit is mounted beneath the console base, air ducts are routed through the console, and nozzles are integrated into the console or headrest, effectively hiding the ventilation system within the existing operator station furniture
2Object-affected harmful factors
If a traditional ventilation system is installed on the road paver, then bitumen fumes can be extracted, but the system does not provide sufficient fresh air enrichment directly at the operator's workstation
Solution Approach 1:
The system provides localized fresh air enrichment directly at the operator's breathing zone through nozzles positioned on the seat console and headrest. Rather than general ventilation, fresh air is delivered precisely where the operator needs it, creating a fresh air atmosphere in the immediate vicinity of the operator
Solution Approach 2:
The system pre-supplies filtered fresh air to the operator's workstation before bitumen fumes can reach the operator. The fan unit continuously draws in ambient air, filters it, and delivers it through ducts to nozzles positioned near the operator, creating a protective fresh air barrier in advance
3Ease of operation
If the fan unit is positioned on the seat console, then fresh air can be supplied to the operator, but the fan unit creates operating noise and occupies space on the console
Solution Approach 1:
The fan unit is nested beneath the console base, utilizing the space underneath the seat console rather than occupying space on top of it. This positioning hides the fan unit from view and uses the console base as a protective enclosure, reducing both space occupation and noise exposure to the operator
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
The system effectively reduces bitumen fumes at the operator's workstation, ensuring compliance with air quality standards and providing a comfortable working environment without disrupting daily operations.
Implementation Method 1
a filter unit (49) arranged below the fan unit (47). The filter unit (49) is connected to the intake side of the fan unit (47). Ambient air (U) can be drawn in through the fan unit (47) and filtered through the filter unit (49)
Implementation Method 2
Two air ducts (50) lead away from the fan unit (47) and supply at least one nozzle unit (41, 44) with fresh air
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a road construction machine (1) in the form of a road paver (2) or a feeder vehicle (18) for a road paver (2), comprising a driver's control station (9, 21) open at least on one side (S) for a driver (F) of the road construction machine (1), wherein the driver's control station (9, 21) has at least one seat console (10), the seat console (10) comprising a fresh air system (34). The invention further relates to a method for generating improved air quality on an open driver's control station (9, 21) of a road construction machine (1).