Keyword: Engine cylinders

Articles: Mechanical & Fluid Systems
Briefs: Photonics/Optics

An optical setup developed by researchers at Sandia's Combustion Research Facility and the Technical University of Denmark can now quantify the formation of soot — particulate matter consisting...

Briefs: Test & Measurement

The giant rotor blades are one central part of a wind turbine. Researchers developed a rotor blade that makes more efficient use of large fluctuations in wind strength using...

Briefs: Mechanical & Fluid Systems

NASA’s Kennedy Space Center (KSC) has created the Cryo-Fluid Capacitor (CFC) that capitalizes on the energy storage capacity of liquefied gases, and the relative simplicity of high-pressure gas bottles while...

Application Briefs: Sensors/Data Acquisition

Farming has not been untouched by the IoT revolution. The relationships among field conditions, crops, and strategies for planting, irrigating, and harvesting are complex, yet vital for...

Briefs: Medical
Cell Processing Cartridge for Miniature Cytometer

Portable flow cytometers, especially in handheld or briefcase sizes, have not been available. One reason is the need to support complex, high-pressure fluidics and process cells using a centrifuge and mixing device. A need existed for point-of-care and/or point-of-analysis flow cytometry.

Briefs: Robotics, Automation & Control

Robots in production lines work with micrometer precision, unless a component fails. If, for example, the linear actuator used to precisely position a car body in front of an...

Briefs: Mechanical & Fluid Systems

Uncontrolled and rapid movement of equipment and people through security gates has been a major problem for security personnel. In situations pertaining to facility security, it is desirable to delay the passage of...

Articles: Motion Control

The need for actuators has grown exponentially. Nearly everywhere you look you can see pneumatic, hydraulic, or electric actuator systems at work in an endless variety of applications. There are many...

Briefs: Propulsion
Rotary Piston Engine

There are many applications where a high power-to-weight engine is either necessary or helpful. Uses for this type of engine range from handheld power equipment, to motorcycles and aircraft — uses multiply when fuel efficiency, compactness, and versatility are added. Currently, there are few viable options available to...

Articles: Motion Control

There may be no stronger ally of electrical power utilities than industrial size air compressors, as they drone on every day, taking atmospheric air and transforming it into useful...

Articles: Imaging

Alens is cylindrical. It captures light in a circular plane for collection onto a rectangular digital sensor plane. This collection of photons is then transformed into electricity by...

Articles: Manufacturing & Prototyping

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Articles: Motion Control

Advances in motion control technology have prompted a new debate — do hydraulic cylinders or electric linear actuators offer the best solution for a linear motion application?...

Briefs: Manufacturing & Prototyping

Over the past three years, NASA has been studying the operational effectiveness and astronaut protection efficacy of numerous radiation protection shelters for...

Briefs: Robotics, Automation & Control

A group of researchers at Osaka University, Kobe University, Tohoku University, The University of Tokyo, and Tokyo Institute of Technology developed construction robots for disaster relief that solve...

Briefs: Robotics, Automation & Control

The Yale-CMU-Berkeley (YCB) Object and Model Set provides universal benchmarks for labs specializing in robotic manipulation and prosthetics. About two years ago, Aaron Dollar, an associate professor...

Briefs: Manufacturing & Prototyping
Thermal Stir Welding Process

NASA's Marshall Space Flight Center is developing an improved joining technology called thermal stir welding that improves upon fusion welding and friction stir welding. This new technology enables a superior joining method by allowing manufacturers to join dissimilar materials and to weld at high rates. NASA's...

Briefs: Mechanical & Fluid Systems
RFID Cavity

This technology provides a method for interrogating collections of items with radio-frequency identification (RFID) tags. It increases the read accuracy, meaning that more of the item tags will be successfully read. It also permits smaller tag antennas than would otherwise be necessary.

Briefs: Mechanical & Fluid Systems

Composites have excellent strength characteristics, are lightweight, and are increasingly being used in space applications. However, they are highly inflexible and require hinged joints when...

Articles: Robotics, Automation & Control
Advantages of Electric Linear Actuators

Reduced downtime. Electric linear actuators (whether screw- or belt-driven) are very low-maintenance. Regreasing may be the only...

Application Briefs: Automotive

The normal road construction process involves subgrade (the existing soil) preparation followed by placement of an aggregate layer, and then the pavement surface layer (asphalt or concrete). In...

Briefs: Test & Measurement

NASA’s Jet Propulsion Laboratory has developed a neutral mounting scheme that eliminates the acceleration sensitivity of whispering...

Briefs: Mechanical & Fluid Systems

Human operation in space over long time periods causes bone and muscle deterioration, so there is a need for countermeasures in the form of physical exercises consisting of working against controlled...

Briefs: Mechanical & Fluid Systems

To date, there are solutions that can collect samples by being deployed from a distance from a low-gravity body or using a touch-and-go approach. To increase precision collection of samples...

Briefs: Sensors/Data Acquisition

A pressure sensor was developed based on a piezoelectric bending resonator. The resonator is covered and mechanically coupled with a sealed enclosure. The impedance spectrum of the...

Briefs: Propulsion

There are difficulties related to storing enough gas to propel a CubeSat within an onboard tank. Currently, a CubeSat requiring a large volume of gas for extended...

Articles: Automotive
Standards for Comfortable Seats

In the beginning, safety trumped comfort in spacecraft designs for human space travel. Early space capsules were small and had a seat-driven design in which most of the...

Briefs: Mechanical & Fluid Systems

Multipath, multistage, erosion-resistant flow control valves have been developed that can sustain the extremely high pressure of deep oil wells. Fitting in the...