Rotary Piston Cylinder Assembly Shutter Disc Transfer Passage
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Solution Overview
Problem
Conventional rotary piston and cylinder devices face challenges in achieving efficient operation at high speeds due to the use of reciprocating components, which lead to frictional losses and inefficiencies, especially when trying to optimize compression and expansion cycles independently in internal combustion engines.
Innovation Solution
The implementation of a rotary piston and cylinder assembly with a rotor and stator configuration, featuring a shutter disc that allows for non-reciprocating movement and adjustable port arrangements, along with a transfer conduit that connects output ports of one device to input ports of another, enabling heat transfer, turbulence control, and fluid flow management to enhance efficiency and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If reciprocating components are used in rotary piston and cylinder devices, then the device can achieve compression and expansion cycles, but frictional losses increase and efficiency decreases at high speeds
Solution Approach 1:
The patent replaces the conventional reciprocating piston mechanism with a rotary impeller that rotates continuously within a housing. This substitution eliminates the reciprocating motion that causes frictional losses against cylinder walls, replacing it with a rotary flow system where gas is conveyed through vortex patterns, significantly reducing friction and improving high-speed efficiency
Solution Approach 2:
The invention changes the fundamental motion parameter from reciprocating linear motion to continuous rotary motion. The impeller rotates at high speeds with multiple vanes creating controlled vortex flows, transforming the operational parameters to eliminate friction-related energy losses while maintaining compression and expansion functionality
2Adaptability or versatility
If conventional rotary piston devices are used, then continuous operation is possible, but the ability to independently optimize compression and expansion cycles is limited
Solution Approach 1:
The device is segmented into distinct functional zones within the housing: a compression zone where gas is compressed by the impeller vanes, a transfer zone where compressed gas is discharged, and an expansion zone where compressed gas expands to drive a turbine or piston. This segmentation allows independent optimization of compression ratio, expansion ratio, and flow timing without compromising overall performance
Solution Approach 2:
The patent introduces a intermediate transfer system with controlled ports and passages that mediate between the compression and expansion zones. This intermediary mechanism allows precise control over when and how compressed gas is transferred to the expansion zone, enabling independent optimization of both cycles while maintaining continuous high-speed operation
3Speed
If high speeds are required, then productivity increases, but reciprocating components cause excessive friction and inefficiency
Solution Approach 1:
The patent replaces the speed-limiting reciprocating mechanism with a rotary impeller design that is inherently suited for high-speed operation. The impeller with multiple vanes creates continuous vortex flows that efficiently compress and convey gas at high rotational speeds without the frictional penalties of reciprocating motion against cylinder walls
Solution Approach 2:
The impeller vanes are designed to pre-rotate the gas flow and create controlled vortex patterns before discharge. This preliminary action prepares the gas for efficient transfer and expansion, reducing turbulence and energy losses during high-speed operation, thereby maintaining efficiency even at elevated rotational speeds
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 configuration allows for optimized compression and expansion cycles, reduced friction, efficient heat recovery, and improved combustion efficiency, enabling operation over a wide range of speeds and conditions while maintaining continuous intake and exhaust, thus enhancing the overall performance of internal combustion engines.
Implementation Method 1
heat transfer means for bringing exhaust fluid of the other device into thermal communication with fluid in the transfer conduit
Implementation Method 2
turbulence generating means which, in use, causes turbulent flow of fluid passing through the transfer passage
Data Source
Figure 1
Figure 2a~2c
Figure 2d
AI summary
A rotary piston and cylinder assembly (1) comprising two rotary piston and cylinder devices (2a, 2b), each device comprising a rotor (7) and a stator (10), the stator at least partially defining an annular cylinder space (3), the rotor is in the form of a ring, and the rotor comprising at least one piston (8) which extends from the rotor ring into the annular cylinder space, in use the at least one piston is moved circumferentially through the annular cylinder space on rotation of the rotor relative to the stator, the rotor body being sealed relative to the stator, and the device further comprising cylinder space shutter means (5) which is capable of being moved relative to the stator to a closed position in which the shutter means partitions the annular cylinder space, and to an open position in which the shutter means permits passage of the at least one piston, the cylinder space shutter means comprising a shutter disc, wherein the devices are connected by a transfer passage.