Fluid-powered linear motor with rotary pistons and motion rectifier

Raymond, David W.

Title: Fluid-powered linear motor with rotary pistons and motion rectifier

Patent · Tue Sep 08 00:00:00 EDT 2020

OSTI ID:1735234

Raymond, David W.

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.

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Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

DOE Contract Number:: NA0003525

Assignee:: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Number(s):: 10,767,670

Application Number:: 16/153,265

OSTI ID:: 1735234

Resource Relation:: Patent File Date: 10/05/2018

Country of Publication:: United States

Language:: English

References (13)

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Fluid powered linear piston motor with harmonic coupling Raymond, David W. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9447798 US Patent Document 9,447,798	patent	September 2016
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