18289410. ROTARY ELECTRICAL MACHINE simplified abstract (Hitachi, Ltd.)
ROTARY ELECTRICAL MACHINE
Organization Name
Inventor(s)
Ryuuichirou Iwano of Tokyo (JP)
ROTARY ELECTRICAL MACHINE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18289410 titled 'ROTARY ELECTRICAL MACHINE
Simplified Explanation
The abstract describes a stator of a rotary electrical machine with a unique cooling system. The coil within the stator core is cooled using a specific coolant flow path design.
- The stator includes a stator core, a coil, and either a connection wire or a jumper wire.
- The coil has a first coil end on one end side of the stator core and a second coil end on the other end side.
- The cooling system has a coolant inflow port, a first annular flow path facing the air gap, a relay flow path on the second coil end side facing the air gap, and a second annular flow path in communication with the relay flow path.
Potential Applications
This technology could be applied in various rotary electrical machines such as generators, motors, and alternators.
Problems Solved
This innovation solves the problem of overheating in rotary electrical machines, ensuring efficient operation and longevity.
Benefits
The cooling system improves the overall performance and reliability of the rotary electrical machine by maintaining optimal operating temperatures.
Potential Commercial Applications
This technology could be utilized in industries such as automotive, aerospace, and renewable energy for enhanced electrical machine performance.
Possible Prior Art
One possible prior art could be traditional cooling systems in rotary electrical machines that may not be as efficient or effective as the described coolant flow path design.
Unanswered Questions
How does this cooling system compare to other existing cooling systems in terms of efficiency and effectiveness?
The article does not provide a direct comparison with other cooling systems in rotary electrical machines.
Are there any limitations or drawbacks to this specific coolant flow path design?
The article does not mention any potential limitations or drawbacks associated with this cooling system.
Original Abstract Submitted
A stator of a rotary electrical machine includes a stator core, a coil, and at least one of a connection wire and a jumper wire. The coil has a first coil end which is located on one end side of the stator core in the axial direction and a second coil end which is located on the other end side of the stator core in the axial direction. A coolant flow path for cooling the rotor and the stator has: a coolant inflow port; a first annular flow path which faces an air gap in the axial direction; a relay flow path which is provided on the second coil end side and which faces the air gap in the axial direction; and a second annular flow path which is in communication with the relay flow path and which is provided as shifted radially outward with respect to the air gap.