Dual Air Dryer Layout for Tractor Pneumatic Supply Priority
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Solution Overview
Problem
Existing pneumatic supply devices for agricultural tractors face challenges in providing universal use due to limited installation space and varying compressed air requirements among different pneumatic consumer groups, particularly when high air consumption units like blow-off guns or working units are connected, leading to compromised dehumidification and flow capacity.
Innovation Solution
A pneumatic supply device with separate air dryers for different consumer groups, each optimized for specific dehumidification and flow capacity needs, ensuring priority supply to critical systems like the pneumatic wheel brake device, and using a pressure switching valve to manage air distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If a single air dryer with limited installation space is used, then the device achieves compact construction, but the dehumidification capacity and flow capacity are insufficient for high air consumption units
Solution Approach 1:
The pneumatic supply device is segmented into multiple independent air dryers (first air dryer and second air dryer), each serving specific pneumatic consumer groups. This segmentation allows each air dryer to be optimized for its specific function while collectively providing universal use capability across different consumer types with varying dehumidification and flow capacity requirements
2Productivity
If the nominal flow capacity of the air dryer is increased to serve high air consumption units, then flow capacity is improved, but the device size and complexity increase
Solution Approach 1:
The air drying function is segmented across multiple parallel air dryers, allowing the system to achieve high total flow capacity without requiring a single large air dryer. Each air dryer maintains a compact size while the combined system serves high air consumption units effectively
Solution Approach 2:
The multiple air dryers are designed to serve different pneumatic consumer groups with varying requirements. The system achieves universality by having air dryers that can handle both high dehumidification capacity needs (first pneumatic consumer group) and high flow capacity needs (second pneumatic consumer group) simultaneously
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
Enables universal use of the device by meeting the unique demands of various pneumatic consumers, ensuring reliable operation of critical systems while optimizing space and efficiency.
Implementation Method 1
a compressed air source (14) for producing a compressed air flow (Qkomp), in particular by means of a compressor (14), and a cooler (20) for cooling the compressed air flow (Qkomp) which has heated up due to compression
Implementation Method 2
a cooler (20) for cooling the compressed air flow (Qkomp)
Implementation Method 3
an air dryer (22, 28) for removing condensate (G) from the cooled compressed air flow (Qkuhl) and for discharging the condensate (G)
Implementation Method 4
a first air dryer (22), which is fed with the cooled air flow and via the outlet of which a first pneumatic consumer group (26) can be supplied with dehumidified compressed air
Data Source
AI summary
A pneumatic supply device for an agricultural tractor includes a compressed air source for producing a compressed air flow, a cooler for cooling the air flow produced, and a first air dryer, which is fed with the cooled air flow and via the outlet of which a first pneumatic consumer group can be supplied with dehumidified compressed air in accordance with a first dehumidification and flow capacity, and a second air dryer, which is fed with the cooled air flow and via the outlet of which a second pneumatic consumer group can be supplied with dehumidified compressed air in accordance with a second dehumidification and flow capacity.