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US 10,100,850 B1Granted
Modular fluid powered linear piston motors with harmonic coupling
AssigneeNational Technology & Engineering Solutions of Sandia, LLC
InventorDavid W. Raymond
Life of this patent
Estimating the term…
Abstract
A modular motor is disclosed that includes a piston/harmonic drive assembly that is axially cycled. The piston/harmonic drive assembly is coupled to a ball transfer arrangement that converts the axial motion into rotary motion to rotate a rotor that can be used to rotate a drill bit.
Claims20
A motor, comprising:
- a housing;
- a piston/harmonic drive assembly disposed within the housing
- a rotor assembly, wherein the piston/harmonic drive assembly comprises a piston and a harmonic drive;
- a liner disposed between the piston/harmonic drive assembly and the rotor;
- and
- a valve assembly fluidly coupled to the housing;
- wherein fluid provided from the rotor assembly to the valve assembly axially drives the piston/harmonic drive assembly over the liner;
- and
- wherein axially driving the piston/harmonic drive assembly over the liner imparts rotation to the rotor assembly.
6 more elements
A drilling assembly, comprising:
- a drill assembly housing;
- a fluid driven motor assembly disposed within the drill assembly housing;
- and
- a drill bit attached to and rotationally driven by the fluid driven motor assembly;
- wherein the fluid driven motor assembly comprises one or more fluid driven motors comprising:
- a housing;
- a piston/harmonic drive assembly disposed within the housing
- a rotor assembly, wherein the piston/harmonic drive assembly comprises a piston and a harmonic drive;
- a liner disposed between the piston/harmonic drive assembly and the rotor;
- and
- a valve assembly fluidly coupled to the housing;
- wherein fluid provided from the rotor assembly to the valve assembly axially drives the piston/harmonic drive assembly over the liner;
- and
- wherein axially driving the piston/harmonic drive assembly over the liner imparts rotation to the rotor assembly.
11 more elements
A method of powering a motor, comprising:
- providing pressured fluid to a valve assembly of the motor;
- porting the pressured fluid to a piston/harmonic drive assembly disposed around a rotor assembly at an initial position to drive the piston/harmonic drive assembly in a first axial direction in the housing;
- rotating the rotor assembly by converting force from the axial movement into rotational force by axially driving the piston/harmonic drive assembly over a liner to impart rotation to the rotor assembly.
A method of powering a motor assembly, comprising:
- providing pressurized fluid to one or more fluid motor modules;
- wherein the one or more fluid motor modules are powered by:
- providing pressured fluid to valve assemblies of the one or more fluid motor modules;
- porting the pressured fluid to piston/harmonic drive assemblies disposed around a rotor assembly to drive the piston/harmonic drive assemblies in an axial direction;
- and
- rotating the rotor assembly by converting force from the axial movement into rotational force by axially driving the piston/harmonic drive assembly over a liner.
3 more elements
Dependencies are inferred from the claim text.