Compressed Gas Piston Expander With Slam-Shut Valve Timing
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Solution Overview
Problem
Existing energy conversion devices, such as vane motors and turbines, face challenges in efficiently converting compressed gas into mechanical work due to limitations in expansion capabilities, leading to reduced performance and lifespan as device size decreases.
Innovation Solution
An energy conversion device comprising a cylinder with a piston and valves that utilize a biasing mechanism to control the intake and exhaust of compressed gas, allowing for expansion-based operation with a movable intake and exhaust valve member that slam shut at critical velocities, optimizing gas flow and pressure differentials for enhanced work production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If turbine size is decreased, then application size is reduced, but rotational speed must increase making the device harder to build and decreasing lifespan
Solution Approach 1:
The patent inverts the conventional turbine approach by using a piston-based expansion device instead of a bladed turbine. This inversion allows the device to achieve expansion-based energy conversion without the high rotational speeds that plague small turbines, thereby improving reliability and lifespan while maintaining compact size.
Solution Approach 2:
The patent changes the operational parameters from high-speed rotation to reciprocating piston motion. By altering the fundamental motion parameter from rotational to reciprocating, the device avoids the speed-related reliability issues that constrain small turbine design while maintaining effective energy conversion.
2Volume of moving object
If turbine size is decreased, then application size is reduced, but device complexity increases due to higher rotational speed requirements
Solution Approach 1:
The patent replaces the complex high-speed rotating turbine mechanism with a simpler reciprocating piston system. This inversion eliminates the need for high-speed bearings, balancing mechanisms, and blade dynamics control, thereby reducing manufacturing complexity while achieving compact device size.
3Device complexity
If expansion capability is limited, then device structure is simpler, but work production is reduced
Solution Approach 1:
The patent introduces dynamic valve control mechanisms that adjust intake and exhaust timing based on piston position and pressure differentials. This dynamic control enables complete expansion of the compressed gas stream, maximizing work production while maintaining a relatively simple overall device structure through programmable valve actuation.
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
This solution enables more efficient energy conversion by allowing for expansion-based operation, increasing work production while reducing the rotational speed requirements and enhancing the lifespan of smaller devices, thus addressing the limitations of existing technologies.
Implementation Method 1
a movable intake valve member movable biased to an open position by a biasing force, a movable exhaust valve member biased to an open position by a biasing force
Data Source
AI summary
Methods and apparatus for converting energy from a stream of compressed gas into mechanical work as systems incorporating such methods and apparatus.