Opposed-Rotor Rotary Piston Engine Venting for Thermal Load Control
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Solution Overview
Problem
Existing rotary piston machines face challenges in achieving high suction capacity and durability while effectively managing thermal loads and maintaining vacuum levels.
Innovation Solution
Incorporating a ventilation channel that temporarily connects the working chamber to the environment, allowing ambient air intake during compression phases to reduce thermal loads and maintain vacuum levels, with rotors operating in opposite directions to enhance suction and compression efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a ventilation channel is introduced to reduce thermal loads, then temperature is reduced, but device complexity increases
Solution Approach 1:
The patent introduces ambient air through a ventilation channel to counterbalance the thermal energy generated during compression. This counterweight approach introduces a cooling medium (ambient air) that offsets the harmful thermal load, allowing the system to maintain lower operating temperatures without requiring complex active cooling systems.
Solution Approach 2:
The ventilation channel acts as an intermediary structure that facilitates the introduction of ambient air into the working chamber. This intermediate element enables thermal management by providing a pathway for heat dissipation, resolving the contradiction between maintaining simple device architecture and effectively managing thermal loads.
2Productivity
If rotors operate in opposite directions to enhance suction capacity, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent combines two rotors operating in opposite directions within a single working chamber, merging their compression functions to achieve enhanced suction capacity. This consolidation allows both rotors to work synergistically, improving productivity while avoiding the need for separate compression systems that would increase overall device complexity.
Solution Approach 2:
Each rotor serves multiple functions: compression of gas, creation of vacuum, and contribution to overall suction capacity. The opposite rotation direction enables each rotor to perform its function more effectively, providing multi-functionality that enhances productivity without requiring additional specialized components.
3Reliability
If ambient air is introduced during compression phase, then vacuum level is maintained, but loss of substance occurs
Solution Approach 1:
The ventilation channel operates periodically rather than continuously, opening during compression phases to maintain vacuum levels and closing during other phases to prevent unwanted air intake. This periodic operation allows the system to maintain reliable vacuum levels when needed while minimizing substance loss by limiting ambient air introduction to specific operational moments.
Solution Approach 2:
The system dynamically controls the ventilation channel opening based on operational requirements, adjusting when ambient air is introduced to balance vacuum maintenance with substance conservation. This dynamic approach allows optimization of both vacuum level reliability and minimization of substance loss according to real-time operational conditions.
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 solution enhances suction capacity and durability, reduces thermal loads, and maintains vacuum levels by introducing air with lower energy levels, achieving high performance and efficient gas compression in a single stage.
Implementation Method 1
a ventilation channel is formed in the housing, in particular precisely, which temporarily establishes a flow connection - directly or indirectly - between the working chamber or at least one of the working sub-chambers, in particular the first working sub-chamber, and the environment
Implementation Method 2
Gas can be introduced into the working chamber or the working sub-chambers via the suction port
Data Source
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AI summary
The invention relates to a rotary piston engine comprising a housing (1) spatially limiting a working chamber (2) , an intake connection (4) for guiding gas into the working chamber (2), a pressure connection (6) for guiding the gas out of the working chamber (2), and a rotor assembly (4) having a first rotor (14) rotatably arranged in a first working sub-chamber (12) and a second rotor (21) cooperating with the first rotor (14) and rotatably arranged in a second working sub-chamber (13). The rotary piston engine also comprises a ventilation channel (8), formed in the housing (1) and connected to the working chamber (2) via a ventilation channel opening (9), for the temporally limited introducing of air into the working chamber (2), wherein the ventilation channel opening (9) is open at least in sections, in particular completely, in a compression phase.