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Title: Energy efficient fluid powered linear actuator with variable area and concentric chambers

Abstract

Hydraulic actuation systems having concentric chambers, variable displacements and energy recovery capabilities include cylinders with pistons disposed inside of barrels. When operating in energy consuming modes, high speed valves pressurize extension chambers or retraction chambers to provide enough force to meet or counteract an opposite load force. When operating in energy recovery modes, high speed valves return a working fluid from extension chambers or retraction chambers, which are pressurized by a load, to an accumulator for later use.

Inventors:
;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1332267
Patent Number(s):
9,494,168
Application Number:
14/468,629
Assignee:
UT-Battelle, LLC (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Aug 26
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION

Citation Formats

Lind, Randall F., and Love, Lonnie J. Energy efficient fluid powered linear actuator with variable area and concentric chambers. United States: N. p., 2016. Web.
Lind, Randall F., & Love, Lonnie J. Energy efficient fluid powered linear actuator with variable area and concentric chambers. United States.
Lind, Randall F., and Love, Lonnie J. Tue . "Energy efficient fluid powered linear actuator with variable area and concentric chambers". United States. https://www.osti.gov/servlets/purl/1332267.
@article{osti_1332267,
title = {Energy efficient fluid powered linear actuator with variable area and concentric chambers},
author = {Lind, Randall F. and Love, Lonnie J.},
abstractNote = {Hydraulic actuation systems having concentric chambers, variable displacements and energy recovery capabilities include cylinders with pistons disposed inside of barrels. When operating in energy consuming modes, high speed valves pressurize extension chambers or retraction chambers to provide enough force to meet or counteract an opposite load force. When operating in energy recovery modes, high speed valves return a working fluid from extension chambers or retraction chambers, which are pressurized by a load, to an accumulator for later use.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}

Patent:

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