Modular keel
The modular keel addresses the challenges of hydrodynamic forces in rough seas by displacing bow waves and creating pressure zones to reduce slamming and pitching, enhancing stability and fuel efficiency.
US20260138707A1Pending Publication Date: 2026-05-21RAFNAR EHF
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Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- RAFNAR EHF
- Filing Date
- 2024-11-15
- Publication Date
- 2026-05-21
AI Technical Summary
Technical Problem
Conventional boats experience issues with hydrodynamic flows and forces during rough seas, leading to slamming, increased energy usage, and reduced maneuverability, which can be dangerous and affect fuel economy.
Method used
A modular keel is designed to displace bow waves towards the stern, creating distinct pressure zones that reduce harmful accelerations and pitching, optimized for various hull types, and enhance stability and speed.
Benefits of technology
The modular keel reduces wave resistance, minimizes slamming and pitching, improves fuel efficiency, and enhances maneuverability by directing water flow in a laminar pattern, thus improving the overall performance of boats in rough waters.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure US20260138707A1-D00000_ABST
Abstract
A modular keel is arranged along a centerline of a boat hull for displacing a bow wave towards the stern and creating distinct pressure zone situations to draw the keel back into water and reduce pitching. The keel features a base extending along a centerline of the boat hull and two symmetric curved segments. The base tapers toward a vertex on the centerline at a fore transitional area that generates a concentrated high pressure zone to help lift the hull and reduce pitching. The keel includes an aft transitional area for expelling water away from the keel in a laminar flow pattern during forward movement of the boat hull. The keel further includes an intermediate transitional area that creates a low pressure zone to dampen the motion of the hull through waves.
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