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):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01B - MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- DOE Contract Number:
- NA0003525
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 10/05/2018
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
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 = {Tue Sep 08 00:00:00 EDT 2020},
month = {Tue Sep 08 00:00:00 EDT 2020}
}
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