Rotary Engine Modular Sleeve and Crossover Seal System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rotary internal combustion engines face inefficiencies due to poor sealing capabilities, suboptimal combustion, lower torque, and RPM limitations, primarily attributed to mechanical configurations and cam follower issues.
Innovation Solution
A rotary internal combustion engine design featuring a power module with all moving parts enclosed within a housing, utilizing a sleeve with integrated intake and exhaust, and a crossover seal system with spring-activated seals to maintain constant combustion chamber pressures and prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rotary engine designs are used, then the engine structure is simpler, but sealing capabilities are insufficient and combustion chamber pressures cannot be maintained
Solution Approach 1:
The engine is divided into modular components including a rotor assembly with multiple arms, a stator with separate intake and exhaust sections, and individual combustion chambers. This segmentation allows each component to be optimized for its specific function while maintaining overall sealing integrity through precise mating surfaces and seals at the interfaces between segments.
Solution Approach 2:
Seal elements are introduced as intermediary components between moving and stationary parts. These seals act as mediators that transfer the sealing function from the mechanical configuration itself to dedicated sealing components, thereby maintaining combustion chamber pressure while allowing the necessary relative motion between rotor and stator components.
2Speed
If cam follower mechanical configurations are used, then valve actuation is achieved, but RPM is limited due to floating mechanisms
Solution Approach 1:
The conventional cam follower mechanism is replaced with a direct-actuation system where rotor arms directly control valve timing and lift through their rotational motion. This substitution eliminates the floating cam follower mechanism and its associated inertia limitations, enabling higher RPM operation while maintaining precise valve actuation control through the rotor's rotational position.
3Use of energy by moving object
If conventional combustion chamber designs are used, then engine construction is simpler, but combustion burn is suboptimal resulting in high temperatures and poor fuel economy
Solution Approach 1:
The combustion chamber design incorporates local quality variations through specifically shaped chamber volumes, strategically positioned spark plugs, and targeted fuel injection points. These localized optimizations create ideal combustion conditions in each chamber, improving burn efficiency and reducing peak temperatures while maintaining overall engine design simplicity.
4Force
If conventional rotary engine designs are used, then engine mass is reduced, but torque output is lower than desired
Solution Approach 1:
Multiple combustion chambers are merged into a single rotor assembly, allowing multiple power strokes to occur simultaneously or in rapid succession. This merging of combustion events within a compact rotor-stator configuration increases total torque output while maintaining the lightweight rotary engine architecture, as the combined force from multiple chambers acts on the same rotational mechanism.
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 design enhances sealing efficiency, maintains constant combustion pressures, and improves torque and RPM capabilities, leading to increased engine performance and fuel economy.
Implementation Method 1
a crossover seal system with spring-activated seals to maintain constant combustion chamber pressures and prevent leakage
Implementation Method 2
rotary internal combustion engine design featuring a power module with all moving parts enclosed within a housing
Data Source
AI summary
A rotatory internal combustion engine includes a power module, a housing configured to retain the power module and including an intake and an exhaust, and a first sleeve including a sleeve intake, a sleeve exhaust, and an injector port. The first sleeve is removably coupleable within the housing to form an intake flow path between the housing intake and the sleeve intake, and an exhaust flow path between the housing exhaust and the sleeve exhaust. The first sleeve is interchangeable with a second sleeve that has at least one of a sleeve intake, a sleeve exhaust, and an injector port different than the corresponding sleeve intake, sleeve exhaust, and injector port of the first sleeve, and that is configured to modify at least one of a torque output of the engine, a power output of the engine, and a fuel timing of the engine, compared to the first sleeve.