A compression-ignition internal combustion engine for aircraft generally comprises a stationary crankshaft, a crankcase adapted to rotate about the stationary crankshaft, and a plurality of cylinders radially extending from the crankcase. Each cylinder includes a piston adapted to reciprocate therei
A compression-ignition internal combustion engine for aircraft generally comprises a stationary crankshaft, a crankcase adapted to rotate about the stationary crankshaft, and a plurality of cylinders radially extending from the crankcase. Each cylinder includes a piston adapted to reciprocate therein and a connecting rod drivingly coupling the piston to the crankshaft. The engine further comprises a valve assembly for operating an exhaust valve associated with each cylinder and a fuel assembly for supplying fuel to each cylinder. First and second cams mounted on the crankshaft are adapted to operate the valve assembly and fuel assembly in a timed manner as the crankcase rotates about the crankshaft. The engine also includes a propeller synchronizer for adjusting the pitch of a plurality of propellers radially extending from the rotating crankcase.
대표청구항▼
What is claimed is: 1. A two-cycle internal combustion engine, comprising: a stationary crankshaft fixed to a support of a vehicle; a crankcase rotatable about the crankshaft, the crankcase having a unitary construction and a plurality of ports formed therein; a plurality of cylinders radially exte
What is claimed is: 1. A two-cycle internal combustion engine, comprising: a stationary crankshaft fixed to a support of a vehicle; a crankcase rotatable about the crankshaft, the crankcase having a unitary construction and a plurality of ports formed therein; a plurality of cylinders radially extending through the plurality of ports in the crankcase, the plurality of cylinders each having a unitary construction adapted to withstand pressures associated with compression-ignition of a fuel; a valve assembly, comprising: an exhaust valve associated with each cylinder; and a valve tappet associated with each exhaust valve for operating the exhaust valve; a fuel assembly, comprising: a fuel injector associated with each cylinder; and a fuel pump associated with each cylinder for providing pressurized fuel to the fuel injectors; and an air blower mounted to the crankshaft and adapted to deliver pressurized air into the crankcase. 2. The engine of claim 1, wherein the crankshaft includes a first and second cam mounted thereon, the valve tappets adapted to cooperate with the first cam to operate the exhaust valves in a timed manner as the crankcase rotates about the crankshaft, and the fuel pumps adapted to cooperate with the second cam to provide pressurized fuel to the fuel injectors in a timed manner as the crankcase rotates about the crankshaft. 3. The engine of claim 2, further comprising: a valve housing coupled to the crankcase and having a plurality of sockets for aligning the valve tappets with the first cam on the crankshaft; and a fuel assembly housing coupled to the crankcase and having a plurality of sockets for aligning the fuel pump with the second cam on the crankshaft. 4. The engine of claim 2, wherein the first cam on the crankshaft has only one lobe for cooperating with the valve tappets such that each exhaust valve operates once per revolution of the crankcase about the crankshaft. 5. The engine of claim 2, wherein the second cam on the crankshaft has only one lobe for cooperating with the fuel pump such that each fuel injector operates once per revolution of the crankcase about the crankshaft. 6. The engine of claim 1, wherein the crankcase is formed from a seamless steel tube. 7. The engine of claim 1, wherein each cylinder is formed from a seamless steel tube. 8. The engine of claim 1, further comprising: a drive belt coupling the air blower and the crankcase such that the air blower is powered by the rotation of the crankcase. 9. The engine of claim 1, wherein the crankshaft is hollow to allow the pressurized air from the air blower to be delivered into the crankcase. 10. The engine of claim 9, further comprising: an air manifold adapted to deliver the pressurized air from the crankcase into the plurality of cylinders. 11. The engine of claim 1, further comprising: a starter motor mounted to the crankshaft and selectively coupleable to the crankcase, the starter motor adapted to rotate the crankcase when coupled thereto. 12. The engine of claim 1, wherein the engine operates on diesel fuel. 13. The engine of claim 1, further comprising: a plurality of propellers radially extending from the crankcase, the plurality of propellers having a pitch; and a propeller synchronizer adapted to selectively change the pitch of the plurality of propellers. 14. The engine of claim 13, wherein the propeller synchronizer comprises: a motor secured to the crankcase; a pinion gear rotatably coupled to the motor; a main gear operable to rotate relative to the crankcase and coupled to each propeller; and a drive shaft coupling the pinion gear to the main gear such that operation of the motor causes rotation of the propellers so as to change their pitch. 15. A diesel-powered internal combustion engine, comprising: a stationary crankshaft adapted to be fixed to a support of a vehicle; a crankcase adapted to rotate about the crankshaft, the crankcase having a unitary construction and a plurality of ports formed therein; a plurality of cylinders radially extending through the plurality of ports in the crankcase, the plurality of cylinders each having a unitary construction adapted to withstand pressures associated with compression-ignition of a fuel; a plurality of propellers secured to and radially extending from the crankcase, the plurality of propellers having a pitch; a propeller synchronizer adapted to selectively change the pitch of the plurality of propellers, the propeller synchronizer comprising: a motor secured to the crankcase; a pinion gear rotatably coupled to the motor; a main gear operable to rotate relative to the crankcase and coupled to each propeller; and a drive shaft coupling the pinion gear to the main gear such that operation of the motor causes rotation of the propellers so as to change their pitch. 16. The engine of claim 15, further comprising: a valve assembly comprising an exhaust valve associated with each cylinder and a valve tappet associated with each exhaust valve for operating the exhaust valve; and a fuel assembly comprising a fuel injector associated with each cylinder and a fuel pump associated with each cylinder for providing fuel to each cylinder, wherein the valve assembly and the fuel assembly are adapted to be operated in a timed manner as the crankcase rotate about the crankshaft. 17. The engine of claim 16, wherein the timed manner of the valve assembly and the fuel assembly corresponds to a two-stroke combustion cycle. 18. The engine of claim 15, wherein at least one of the crankshaft and cylinders is formed from a seamless steel tube. 19. The engine of claim 15, further comprising: an air blower mounted to the crankshaft and adapted to deliver pressurized air into the crankcase; and an air manifold adapted to deliver the pressurized air from the crankcase into the plurality of cylinders.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.