Turbocharged Engine Intake Opening Device for Faster Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Internal combustion engines in electrical power supplies, particularly in emergency settings, face challenges in quickly reaching synchronization speed and recovering from load drops due to turbocharger restrictions during startup and no-load conditions.
Innovation Solution
An opening device is implemented to allow the high pressure side of the air intake system to open to atmosphere during startup, enabling the engine to breathe at atmospheric pressure and reducing turbocharger restriction, thereby enhancing turbocharger behavior during load conditions and facilitating quicker speed recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the turbocharger compressor is used during startup and no-load conditions, then the engine can operate as a suction engine with improved air intake, but the compressor acts as a restriction that slows down the engine's ability to reach synchronization speed
Solution Approach 1:
The air intake system dynamically switches between two configurations: during startup and no-load conditions, the opening device allows atmospheric pressure intake to avoid compressor restriction; during load conditions, the compressor is activated to provide pressurized air. This dynamic adaptation resolves the contradiction by optimizing air intake for each operational phase.
Solution Approach 2:
The system changes the pressure parameter of the air intake by switching between atmospheric pressure (during startup) and compressor pressurized air (during load). This parameter change allows the engine to overcome the compressor restriction during critical speed attainment phases while still benefiting from pressurized air when needed.
2Power
If the turbocharger is designed for optimal load conditions, then high specific power is achieved, but the compressor creates restriction during startup and no-load phases
Solution Approach 1:
The air intake operation is segmented into distinct phases: startup phase using atmospheric pressure intake, and load phase using compressor pressurized air. The opening device enables this segmentation by providing an alternative air intake path during startup, allowing the turbocharger to be optimized for load conditions without compromising startup performance.
Solution Approach 2:
The opening device acts as an intermediary element that provides an alternative air intake path during startup conditions. This mediator allows the engine to bypass the compressor restriction temporarily, enabling smooth startup while preserving the turbocharger's optimal design for load conditions.
3Quantity of substance
If the engine operates with the compressor during startup, then pressurized air is provided, but the time to reach synchronization speed increases due to the restriction
Solution Approach 1:
During startup, the opening device is activated in advance to provide unrestricted atmospheric pressure air intake, allowing the engine to quickly overcome inertia and reach synchronization speed. Once synchronized and under load, the opening device closes and the compressor takes over to provide pressurized air, ensuring optimal performance throughout the operational sequence.
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 allows for quicker attainment of synchronization speed and improved load behavior by reducing turbocharger restriction during startup and ensuring efficient air intake, leading to faster recovery of nominal speed after power switching on.
Implementation Method 1
a turbine connected to an exhaust manifold of the engine and a compressor driven by the turbine
Implementation Method 2
a compressor driven by the turbine and connected to an intake manifold of the engine for providing the engine with pressurized air
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3
AI summary
The present invention provides an electrical power supply comprising a generator and an internal combustion engine driving the generator, the engine comprising a turbo-charger with a turbine connected to an exhaust manifold of the engine and a compressor driven by the turbine and connected to an intake manifold of the engine for providing the engine with pressurized air. The present invention is characterized in that the engine has an opening device for opening a high pressure side of the air intake system downstream of the compressor to atmosphere, such that the engine can breath air at atmospheric pressure when the opening device is open.