Railway Heating/Cooling TRIZ Cases
- Rail Vehicle Air Conditioning Emergency Operation via Gangway Pressure Control
Control device adjusts exhaust flows to create pressure gradients for conditioned air transfer between carriages.
- Rail Vehicle Air-Conditioning System with Exterior Refrigerant Segmentation
A rail vehicle air-conditioning system places refrigerant assemblies outside the comfort ventilation ducting to prevent flammable gas ingress into the passenger compartment.
- Unitary Railway Air Conditioning Unit for Leakage Reduction
A unitary railway air conditioning unit integrates internal refrigerant circuits to reduce installation time and improve labor efficiency.
- Railway Vehicle Underfloor Air-Conditioner and Propulsion Device Integration
An underfloor air-conditioner ejects outdoor air longitudinally to cool an adjacent propulsion device.
- HVAC Heater Coolant Flow Control for Compact Module Design
Periodic coolant flow through a heater core eliminates blend doors and mixing chambers, reducing HVAC module size while maintaining cabin heating performance.
- Train Device Deterioration Diagnosis via Measurement Condition Standardization
A deterioration diagnosis apparatus standardizes measurement conditions for train devices to ensure consistent data acquisition.
- Foam Metal Heat Exchanger with Tapered Flow Passages
Tapered duct passages precondition fluid entering a foam metal core, resolving weight-volume trade-offs while maintaining high heat rejection capability.
- Airflow Guidance Structure for Refrigerated Containers
Ceiling panel sections channel cooled air to eliminate temperature gradients and ensure consistent cooling across perishable goods.
- Rail Vehicle Seat Exhaust Flow Path Noise Reduction
A rail vehicle seat base integrates an exhaust port and sound absorbing member to redirect airflow through a return flow path structure.
- Concentric HVAC Fan and Heat Exchanger for Compact Cab Cooling
Concentric fan and heat exchanger units resolve the size versus capacity trade-off in agricultural vehicle cabs, ensuring uniform temperature distribution.
- Railway Air Conditioning Duct with Tapered Cross-Section
Tapered circulation duct directs conditioned air into a mixing enclosure, reducing temperature differences between blown and room air.
- Railway Vehicle Power Storage Unit Preheating via Onboard Conversion
A railway vehicle power storage unit heats up via an onboard power conversion system discharging pre-stored energy below a predetermined threshold.
- Rail Vehicle Heat Storage Unit for Air Conditioning Energy Management
A heat storage unit buffers thermal energy from rail vehicle air conditioning systems, reducing electrical consumption on non-electrified routes.
- Vent Asymmetry in Electronic Device Cover for Thermal Management
Asymmetric vent ratios on a vehicle electronic device cover maintain thermal radiation while enabling convective cooling through side wall openings.
- Railway Intake Grill Bar Rattling Prevention via Elastic Deformation
Elastic deformation of plate-shaped bars generates internal reaction force to prevent rattling, eliminating welding and reducing assembly complexity.
- Compact Air Conditioning System for Public Transport
Liquid circulation and ground-level outlets reduce device bulkiness while maintaining effective air distribution in public transport vehicles.
- Railroad Power Converter Air Guide Duct Cooling
Air guide ducts capture traveling air and route it between fins to resolve uneven cooling caused by complex internal airflow patterns.