Fixed-Rail Rotor Pump Sealability and Supercharging
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Solution Overview
Problem
Existing engines, particularly reciprocating piston engines and turbine engines, face challenges in high-rotating-speed conditions due to structural limitations and inefficiencies, and current supercharging technologies like turbocharging are ineffective at low speeds, leading to poor sealability, high fuel consumption, and excessive energy dissipation.
Innovation Solution
A fixed-rail rotor pump and combined supercharging internal-combustion engine design featuring a concentrically arranged fixed rail and cylinder, with fan-shaped pistons that move in a circular orbit, enhancing sealability and energy efficiency by reducing kinetic energy consumption and improving supercharging performance across varying speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If Wankel rotor engines use a triangular rotor with a single scribing device at each end angle, then the structure is simple, but the sealability is poor and fuel consumption is high
Solution Approach 1:
The invention divides the single scribing device into multiple scribing devices (at least two) arranged along the generatrix of the rotor. This segmentation allows each scribing device to independently contact and seal with the stator, significantly improving sealability while maintaining structural simplicity through the use of multiple basic sealing units rather than a single complex mechanism.
Solution Approach 2:
The invention applies scribing devices at multiple locations along the rotor's generatrix rather than concentrating sealing function at a single point. This local distribution of sealing function ensures that multiple contact points with the stator are maintained simultaneously, creating zones of high pressure that effectively prevent gas leakage and improve overall sealability.
2Use of energy by moving object
If turbocharging technology is used for supercharging, then energy saving effect is achieved by using exhaust emission, but the supercharging effect is not obvious under low-speed running conditions
Solution Approach 1:
The rotor pump is designed to perform multiple functions: it acts as both a supercharging device and a lubrication pump. The same rotating components that compress air for supercharging also generate the pressure necessary for lubrication, eliminating the need for separate systems and enabling effective operation across a wide speed range including low-speed conditions.
Solution Approach 2:
The rotor pump uses its own rotational motion to simultaneously achieve supercharging and lubrication functions. The compression of air and generation of lubrication pressure are self-service outcomes of the same mechanical action, allowing the system to adapt to varying speed conditions without external control or additional energy input.
3Power
If mechanical superchargers are used, then supercharging effect is achieved, but kinetic energy of engines is dissipated in different extent
Solution Approach 1:
The invention merges the supercharging function and lubrication function into a single integrated rotor pump system. By combining these two functions, the system eliminates the need for separate mechanical superchargers that would dissipate kinetic energy, as the same rotating components serve dual purposes with no additional energy loss.
4Stability of the object's composition
If reciprocating motion piston engines are used, then the earliest engine structure is adopted, but high-rotating-speed motion requirements cannot be met due to structural restrictions
Solution Approach 1:
The invention transitions from static reciprocating motion to dynamic continuous rotation. The rotor-stator configuration enables smooth continuous rotational motion without the inertial constraints of reciprocating components, allowing the engine to achieve high rotating speeds while maintaining structural stability through the simple yet robust rotating architecture.
Data Source
AI summary
A fixed-rail rotor pump and fixed-rail rotor pump combined supercharging internal combustion engine are described. In the fixed-rail rotor pump, a rotor shaft runs through a rotor; the rotor is internally tangent to the inner wall of the cylinder; the inner side of at least one side of a cylinder-end cover is fixed with a convex fixed-rail disposed concentrically with the cylinder; the rotor runs through the cylinder end cover and the fixed-rail; a piston is provided along the external periphery of the rotor and is rotatably connected to the rotor via a rotating shaft of the piston; the rotor is provided with a piston comprises a top arc surface, a bottom arc surface the three angels of the piston constitute an equilateral triangle; the top angle of the piston keeps contact with the inner wall of the cylinder; the bottom arc surface of the piston is externally tangent to the outer peripheral surface of the fixed-rail; the piston moves in a curved path around the fixed-rail.