Dual speed rotary tool
AssigneeAir Turbine Technologies, Inc.
InventorSimon Richard Shane
Life of this patent
Estimating the term…
Abstract
A high torque dual speed turbine rotor for a lightweight hand held tool for grinding and polishing or for use with a spindle mounted pneumatic machine. The high torque dual speed turbine rotor includes a two-piece shaft with flow control screw disposed within the shaft. The shaft includes a first set of hollow openings, at a first position from one end of the shaft, in fluid communications with a first annular chamber of a rotor. There is also a second set of hollow opening, at a second position from the one end of the shaft, in fluid communications with a second annular chamber of the rotor. The flow control screw moves inside a threaded axial bore of the shaft from an open position inside the axial bore to the closed position corresponding to the second set of hollow openings.
Claims17
A dual speed rotor for a hand held or spindle mounted pneumatic tool, comprising:
- a drive shaft with a first end and a second end and an outer wall, the first end including an axial bore and a first set of openings in the outer wall at a first position from the first end and a second set of openings in the outer wall at a second position from the first end, the axial bore in fluid communications with the first set of openings and the second set of openings;
- a turbine rotor having a first annular chamber in fluid communication with the first set of openings of the drive shaft and a second annular chamber in fluid communications with the second set of openings in the drive shaft;
- and
- a flow control screw for mechanically coupling within the axial bore inside the first end of the drive shaft to move between a third position from the end of the first end of the drive shaft and the second position of the drive shaft to restrict or stop the fluid communications between the axial bore and the second set of openings.
A machining system with a dual speed rotor comprising:
- a dual speed rotor;
- a CNC machine;
- an auto changer device;
- a mounting collar assembly for holding a dual speed rotor;
- the dual speed rotor including
- a drive shaft with a first end and a second end and an outer wall, the first end including an axial bore and a first set of openings in the outer wall at a first position from the first end and a second set of openings in the outer wall at a second position from the first end, the axial bore in fluid communications with the first set of openings and the second set of openings;
- a turbine rotor having a first annular chamber in fluid communication with the first set of openings of the drive shaft and a second annular chamber in fluid communications with the second set of openings in the drive shaft;
- and
- a flow control screw for mechanically coupling within the axial bore inside the first end of the drive shaft to move between a third position from the end of the first end of the drive shaft and the second position of the drive shaft to restrict or stop the fluid communications between the axial bore and the second set of openings.
Dependencies are inferred from the claim text.