18348649. Midshaft Rating for Turbomachine Engines simplified abstract (GENERAL ELECTRIC COMPANY)
Contents
- 1 Midshaft Rating for Turbomachine Engines
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 Midshaft Rating for Turbomachine Engines - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
Midshaft Rating for Turbomachine Engines
Organization Name
Inventor(s)
Narayanan Payyoor of Thrissur (IN)
Bhaskar Nanda Mondal of Bengaluru (IN)
Midshaft Rating for Turbomachine Engines - A simplified explanation of the abstract
This abstract first appeared for US patent application 18348649 titled 'Midshaft Rating for Turbomachine Engines
Simplified Explanation
The patent application describes a turbomachine engine with components made of ceramic matrix composite (CMC) material, including a high-pressure compressor, a high-pressure turbine, a combustion chamber, and a power turbine. The engine also features a low-pressure shaft with specific speed ratings to prevent passing through a critical speed associated with a first-order bending mode.
- High-pressure compressor, high-pressure turbine, and power turbine made of ceramic matrix composite (CMC) material.
- Low-pressure shaft with midshaft rating (MSR) between 200 ft/sec and 300 ft/sec.
- Redline speed of the low-pressure shaft between 50 ft/sec and 250 ft/sec.
- Engine designed to operate up to the redline speed without passing through a critical speed associated with a first-order bending mode of the low-pressure shaft.
Potential Applications
The technology could be applied in aerospace, power generation, and marine propulsion systems.
Problems Solved
1. Improved efficiency and performance of turbomachine engines. 2. Enhanced durability and reliability due to the use of ceramic matrix composite (CMC) material.
Benefits
1. Increased engine efficiency. 2. Extended engine lifespan. 3. Reduced maintenance costs.
Potential Commercial Applications
Optimizing aircraft engines for better fuel efficiency and performance.
Possible Prior Art
Prior art may include patents related to the use of ceramic matrix composite (CMC) materials in turbomachinery components.
Unanswered Questions
How does the use of ceramic matrix composite (CMC) material impact the overall weight of the turbomachine engine?
The article does not provide information on the weight implications of using CMC material in the engine components.
What are the specific manufacturing processes involved in producing turbomachine components using ceramic matrix composite (CMC) material?
The patent application does not detail the manufacturing techniques for creating CMC components for turbomachine engines.
Original Abstract Submitted
A turbomachine engine including a high-pressure compressor, a high-pressure turbine, a combustion chamber in flow communication with the high-pressure compressor and the high-pressure turbine, and a power turbine in flow communication with the high-pressure turbine. At least one of the high-pressure compressor, the high-pressure turbine, and the power turbine comprises a ceramic matrix composite (CMC) material. The turbomachine engine includes a low-pressure shaft coupled to the power turbine and characterized by a midshaft rating (MSR) between two hundred (ft/sec)and three hundred (ft/sec). The low-pressure shaft has a redline speed between fifty and two hundred fifty feet per second (ft/sec). The turbomachine engine is configured to operate up to the redline speed without passing through a critical speed associated with a first-order bending mode of the low-pressure shaft.
