Southwest Research Institute , headquartered in San Antonio, Texas, is one of the oldest and largest independent, nonprofit, applied research and development organizations in the United States. Founded in 1947 by oil businessman Thomas Slick, Jr., SwRI provides contract research and development services to government and industrial clients.The institute consists of 11 technical divisions that offer multidisciplinary, problem-solving services in a variety of areas in engineering and the physical science. More than 2,000 projects are active at the institute at any given time. These projects are funded almost equally between the government and commercial sectors. At the close of fiscal year 2013, the SwRI staff numbered 2,845 employees and total revenue was $592 million. The institute provided $6.7 million to fund innovative research through its internally sponsored R&D program.Partial listing of research areas includes space science and engineering; automation, robotics, and intelligent systems; avionics and support systems; bioengineering; chemistry and chemical engineering; corrosion and electrochemistry; earth and planetary science; emissions research; engineering mechanics; fire technology; fluid systems and machinery dynamics; and fuels and lubricants. Additional areas include geochemistry and mining engineering; hydrology and geohydrology; materials science and fracture mechanics; modeling and simulation; nondestructive evaluation; oil and gas exploration; pipeline technology; surface modification and coatings; and vehicle, engine, and powertrain design, research, and development.SwRI initiates contracts with clients based on consultations and prepares a formal proposal outlining the scope of work. Subject to client wishes, programs are kept confidential. As part of a long-held tradition, patent rights arising from sponsored research are often assigned to the client. SwRI generally retains the rights to institute-funded advancements. The institute’s headquarters occupy more than two million square feet of office and laboratory space on more than 1,200 acres in San Antonio. SwRI has technical offices and laboratories in Boulder, Colorado; Ann Arbor, Michigan; Warner-Robins, Georgia; Ogden, Utah; Oklahoma City, Oklahoma; Rockville, Maryland; Minneapolis, Minnesota; Beijing, China; and other locations. The institute also provides environmental monitoring expertise at a munitions disposal site at the Umatilla Army Depot in Hermiston, Oregon.SwRI’s mission statement is, "Benefiting government, industry and the public through innovative science and technology." Two of its core values are independence and impartiality. Wikipedia.
Southwest Research Institute | Date: 2015-09-11
An exhaust gas recirculation (EGR) system and corresponding method for improved combustion efficiency of an internal combustion engine having a number of cylinders, comprising one or more main cylinders connected to an intake manifold and one or more cylinders operable as a dedicated EGR cylinder(s). The dedicated EGR cylinder(s) have two independent intake flow paths for where one flow path provides only intake air and one flow path provides air and recirculated exhaust gas. The exhaust gas output of the one or more dedicated EGR cylinders are connected to an exhaust gas recirculation loop which delivers the exhaust gas output to the main cylinder intake manifold.
Southwest Research Institute | Date: 2016-11-22
A TiSiCN coating for a piston ring and a method forming such coating, wherein the deposited coating exhibits a thickness in the range of 10.0 micrometers to 20.0 micrometers and exhibits a coefficient of friction of less than 0.15 and a wear rate of less than 1010^(6 )mm^(3)/N/m. The coefficient of friction being measured on a Plint TE77 and the wear rate being measured against an alumina ball of 0.25 inches in diameter at a load of 1 N at 100 rpm in a dry environment. The deposited TiSiCN coating includes nanocrystalline phases in an amorphous matrix.
Southwest Research Institute | Date: 2016-07-28
A gear train including a rotatable drive shaft and a clutch roller in rotatable contact with the drive shaft or mounted on the drive shaft. A first wobble gear and a second wobble gear are suspended around the drive shaft, wherein the first wobble gear is affixed to and concentric with the second wobble gear and the clutch roller is preloaded against the first and second wobble gears. A first ring gear surrounding and engaged by the first wobble gear; and a second ring gear surrounding and engaged by the second wobble gear. The ring gears being coaxial and rotatable relative to one another. The drive shaft rotates the clutch roller, which drives the first and second wobble gears, such that the wobble gears rotate around the drive shaft and at least one of the first and second ring gears rotate around the common axis.
Southwest Research Institute | Date: 2015-10-11
A set of mechanisms, for use with an internal combustion test engine, for testing cylinder offset during operation of the engine. The test engine specifics may vary, but it is assumed to have a crankcase base that supports a cylinder barrel and cylinder head. During engine operation, a transit plate is secured to the top surface of the crankshaft base, and a pair of wedge plates is secured between the transit plate and the bottom of the cylinder barrel. When the engine is not in operation, the transit plate can be slid in a direction normal to the crankshaft axis (for cylinder offset adjustment), and the wedge plates can be moved relative to each other (for cylinder height adjustment).
Southwest Research Institute | Date: 2015-10-16
The present disclosure is directed at a ruthenium based catalyst for NOx reduction. More specifically, ruthenium based catalysts are used for NOx reduction in an internal combustion engine to reduce NO_(x )to nitrogen, at relatively high conversion and selectivity, using carbon monoxide and hydrogen as reductants. The ruthenium based catalyst has particular utility in exhaust gas recirculation such as in dedicated exhaust gas recirculation (D-EGR) systems.
Southwest Research Institute | Date: 2015-10-27
A probe for use in magnetostrictive testing of tubular structures. The probe has a handle and an outer tube, the latter having an expandable probe head for insertion into the tubular structure. A pair of magnetostrictive sensors is mounted in or on the probe head. A flexible bladder is located inside the outer tube in the area of the probe head, and communicates with a pressurizing cartridge in the probe handle via a bladder tube. The bladder is operable to expand, causing the probe head to expand, which moves the sensors toward the inner wall of the tubular structure. The probe is also equipped with a couplant injector that delivers coupling fluid to any gaps between the inner surface of the tubular structure and the outer surface of the probe.
Southwest Research Institute | Date: 2015-11-17
A method and system for generating a surface treating plasma. Gas is provided to a power conducting electrode and flows through the power conducting electrode. Power pulses are applied to the power conducting electrode in the range of 40 kW to 100 kW with a DC generator, at a frequency in the range of 1 Hz to 62.5 kHz, and with a pulse duration in the range of 0.1 microseconds to 3,000 microseconds. Peak currents in the range of 100 Amps to 400 Amps are produced and plasma is formed from the gas. A substrate surface may then be treated with the plasma.
Southwest Research Institute | Date: 2015-12-10
A reciprocating compressor. A hollow cylinder tube contains a piston assembly having two pistons connected by a piston rod. At each end of the cylinder tube is an outer chamber between an end plate and an outer end of the proximate piston. These two outer chambers and the outer ends of the pistons define a power cylinder at each end of the cylinder tube. In the mid-portion of the cylinder tube, a center divider is situated between the pistons and has an aperture that allows the piston rod to reciprocate through it. The two inner chambers formed thereby and the inner ends of the pistons define two compression cylinders in the mid-portion of the cylinder tube. The two compression chambers share a suction manifold and a discharge manifold, but have independently operating suction and discharge valves.
Southwest Research Institute | Date: 2015-12-28
Reinforcement systems for additive manufacturing are disclosed. In some embodiments, the reinforcement systems include a print head assembly including a print head that is configured to form a plurality of layers of an additively manufactured article, and a reinforcement head. The reinforcement head may be configured to form at least one reinforcement element on or within a working layer of the plurality of layers formed by the print head. Additive manufacturing systems including such reinforcement systems and methods of additive manufacturing using those reinforcement systems are also disclosed.
Southwest Research Institute | Date: 2015-12-01
A method and system for the monitoring and control of electrochemical cell degradation by use of strain-based battery testing. Strain-based battery is employed to recognize and implement a battery revival cycle to reduce battery degradation rates.