Fluid-powered linear motor with rotary pistons and motion rectifier
Abstract
A fluid-powered linear motor with rotary pistons is disclosed. An application is for a downhole motor but it could be used in other applications. Rotational pistons provide increased torque generation as the torque generated is proportional to motor length. Since downhole drills are long (generally up to a maximum length of 30 ft.), a high-torque motor can be produced using this method. A pressurized fluid is used to drive the piston assemblies to produce bit shaft power. This concept employs rotary pistons and a mechanical rectifier to convert the rotational reciprocation produced by a reciprocating rotational piston into continuous rotary motion.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1735234
- Patent Number(s):
- 10767670
- Application Number:
- 16/153,265
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16H - GEARING
F - MECHANICAL ENGINEERING F15 - FLUID-PRESSURE ACTUATORS F15B - SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
- DOE Contract Number:
- NA0003525
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 10/05/2018
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Raymond, David W. Fluid-powered linear motor with rotary pistons and motion rectifier. United States: N. p., 2020.
Web.
Raymond, David W. Fluid-powered linear motor with rotary pistons and motion rectifier. United States.
Raymond, David W. Tue .
"Fluid-powered linear motor with rotary pistons and motion rectifier". United States. https://www.osti.gov/servlets/purl/1735234.
@article{osti_1735234,
title = {Fluid-powered linear motor with rotary pistons and motion rectifier},
author = {Raymond, David W.},
abstractNote = {A fluid-powered linear motor with rotary pistons is disclosed. An application is for a downhole motor but it could be used in other applications. Rotational pistons provide increased torque generation as the torque generated is proportional to motor length. Since downhole drills are long (generally up to a maximum length of 30 ft.), a high-torque motor can be produced using this method. A pressurized fluid is used to drive the piston assemblies to produce bit shaft power. This concept employs rotary pistons and a mechanical rectifier to convert the rotational reciprocation produced by a reciprocating rotational piston into continuous rotary motion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}
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Works referenced in this record:
Drive system
patent, August 2008
- Downie, Andrew; Pezzani, Guido Ernesto
- US Patent Document 7,416,034
Rotary actuator
patent, June 1997
- Takeuchi, Terumasa; Nozawa, Yoshinori; Maki, Daiju
- US Patent Document 5,634,390
Harmonic drive linear actuator
patent, May 2009
- Baudendistel, Thomas A.; Klode, Harald
- US Patent Document 7,527,130
Fluid powered linear piston motor with harmonic coupling
patent, September 2016
- Raymond, David W.
- US Patent Document 9,447,798
Percussion tool for generic downhole fluid motors
patent, June 2004
- Martini, Leo A.
- US Patent Document 6,742,605