INERTRA™ Flow
A passive, frame-mounted housing that redirects wheel spray and reduces aerodynamic drag on commercial vehicles. It mounts to existing frame holes without drilling or welding. No active components, no power input.
Passive Structural Redirection
Wheel-generated airflow on commercial vehicles throws spray and mist into the vehicle wake. INERTRA™ Flow addresses this with a shaped housing positioned at the wheel, using geometry rather than powered systems to redirect spray and reduce drag. Protective shields are replaceable, so the housing can be renewed in service.
Transport & Mobile Environments
Intended for vehicle platforms where spray reduction, drag, and simple installation matter at the same time.
Passive Geometric Redirection
Angled housing geometry channels air and spray. No moving parts, no motors or pumps, and no control systems.
How the Architecture Works
Capture the Disturbance Zone
Wheel rotation creates a localized region of pressure, turbulence, and droplet acceleration. The housing is positioned where that motion is still controllable, before a large plume forms.
Redirect the Flow Path
Angled forward and rearward faces channel air and moisture into a more favorable path, limiting lateral dispersion and trailing mist.
Install and Maintain Simply
The support mounts to existing frame holes without drilling or welding, and worn shields are replaced rather than the whole assembly.
Specific geometry, integration drawings, and validation data are provided to qualified counterparties under executed NDA.
Where the Program Has the Most Relevance
Class 8 Fleets
Long-haul tractors and trailers operate in repeated wet-road conditions where wake visibility and drag matter at scale.
Vocational & Severe Duty Platforms
Construction, utility, and municipal vehicles face harsher debris and packaging constraints, which favors simple passive hardware.
Mission-Critical Mobility
Where visibility degradation has operational consequences, passive hardware avoids adding powered systems that need field attention.
Flow Architecture
Is Independently Licensed.
INERTRA™ Flow is covered by US 8,226,158 B1 and is licensed separately from the Retention patent portfolio. If your platform involves motion-driven vapor or mist management, this is the right starting point.
Evaluation Lens
Best fit is where spray behavior, drag, and platform packaging all matter at once, particularly Class 8, vocational, and mission-critical transport programs.