Oscillating pump systems for use on aircraft
AssigneeBell Helicopter Textron Inc.
InventorDavid E. Heverly, II
Life of this patent
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Abstract
An oscillating pump system includes a pump operable to circulate a fluid. The pump has a first port stage including an inlet port and an outlet port and a second port stage including a first oscillating port and a second oscillating port. An oscillator disk is disposed between the first port stage and the second port stage. The oscillator disk is rotatable relative to the inlet port, the outlet port, the first oscillating port and the second oscillating port. During rotation, the oscillator disk alternatingly routes the fluid to the inlet port from the first and second oscillating ports and alternatingly routes the fluid from the outlet port to the first and second oscillating ports, thereby generating oscillating fluid flow.
Claims20
An oscillating pump system comprising:
- a pump operable to circulate a fluid, the pump having a first port stage including an inlet port and an outlet port and a second port stage including a first oscillating port and a second oscillating port;
- and
- an oscillator disk disposed between the first port stage and the second port stage, the oscillator disk rotatable relative to the inlet port, the outlet port, the first oscillating port and the second oscillating port;
- wherein, during rotation, the oscillator disk alternatingly routes the fluid to the inlet port from the first and second oscillating ports;
- and
- wherein, during rotation, the oscillator disk alternatingly routes the fluid from the outlet port to the first and second oscillating ports.
A vibration isolation system comprising:
- a vibration isolator operable to isolate vibration between at least two mechanical components, the vibration isolator having first and second fluid ports;
- a pump operable to circulate a fluid, the pump having a first port stage including an inlet port and an outlet port and a second port stage including a first oscillating port and a second oscillating port, the first oscillating port in fluid communication with the first fluid port of the vibration isolator, the second oscillating port in fluid communication with the second fluid port of the vibration isolator;
- and
- an oscillator disk disposed between the first port stage and the second port stage, the oscillator disk rotatable relative to the inlet port, the outlet port, the first oscillating port and the second oscillating port;
- wherein, during rotation, the oscillator disk alternatingly routes the fluid to the inlet port from the first and second oscillating ports;
- and
- wherein, during rotation, the oscillator disk alternatingly routes the fluid from the outlet port to the first and second oscillating ports.
A rotorcraft comprising:
- a fuselage;
- a rotor hub assembly rotatable relative to the fuselage;
- a vibration isolator disposed between the fuselage and the rotor hub assembly to isolate vibration therebetween, the vibration isolator having first and second fluid ports;
- a pump operable to circulate a fluid, the pump having a first port stage including an inlet port and an outlet port and a second port stage including a first oscillating port and a second oscillating port, the first oscillating port in fluid communication with the first fluid port of the vibration isolator, the second oscillating port in fluid communication with the second fluid port of the vibration isolator;
- and
- an oscillator disk disposed between the first port stage and the second port stage, the oscillator disk rotatable relative to the inlet port, the outlet port, the first oscillating port and the second oscillating port;
- wherein, during rotation, the oscillator disk alternatingly routes the fluid to the inlet port from the first and second oscillating ports;
- and
- wherein, during rotation, the oscillator disk alternatingly routes the fluid from the outlet port to the first and second oscillating ports.
Dependencies are inferred from the claim text.