Keyword: Valves

Briefs: Propulsion
Besides miniature spacecraft propulsion systems, the valve could also have applications in the industrial processing industry where low flow devices are commonly used.
Briefs: Design
Testing has shown that NASA's poppet reduces leakage rates of traditional aerospace cryogenic valves by three orders of magnitude.
Briefs: Medical

A patented self-contained device for isolating deoxyribonucleic acid (DNA), ribonucleic acid (RNA), proteins, and cells without using pipettes or centrifuges has been developed at NASA’s...

Articles: Mechanical & Fluid Systems
The DPV concept matches the unique needs of electric vehicle cooling and energy management systems.
Briefs: Materials
An electrically driven soft valve paves the way for fully soft robots.
Articles: Mechanical & Fluid Systems
Learn seven key design considerations for implementing electrohydraulic valves.
Briefs: Mechanical & Fluid Systems
The valve enables telerobotic resupplying of media such as propellant and pressurant.
Application Briefs: Mechanical & Fluid Systems
A valve actuator has deep-sea applications.
Articles: Mechanical & Fluid Systems
Pneumatic technologies such as control valves continue to evolve, incorporating sensors, industrial network interfaces, wireless technology, and more.
Application Briefs: Sensors/Data Acquisition

As an integral part of onshore and offshore drilling, mud pumps circulate drilling fluids to facilitate drilling oil and natural gas wells. Mud pumps stabilize pressure and support the well during...

Briefs: Mechanical & Fluid Systems
The new technology demonstrates a 20 percent savings in fuel in typical passenger car low-load operating conditions.
Briefs: Motion Control

The Solenoid Valve Health Monitor System (SVHMS) was developed to remotely monitor the health of solenoid valves, lowering operational costs and increasing reliability by predicting valve failures before they...

Briefs: Sensors/Data Acquisition
This vibrometer has uses in analyzing spasms in humans, as a breath analyzer for diagnosis of cancer and other diseases, and as a preventative healthcare sensor.
Articles: Mechanical & Fluid Systems
Application Briefs: Mechanical & Fluid Systems
Salty air the Dutch city of Harlingen causes exposed metal parts to corrode.
Briefs: Semiconductors & ICs
Cryogenic Hydraulically Actuated Isolation Valve

Researchers at NASA's Marshall Space Flight Center have developed a cryogenic isolation valve that utilizes the upstream line pressure of cryogenic fluids for actuation. Previously, the use of cryogenic fluids for actuation systems had been too difficult to control and resulted in unsafe operating...

Briefs: Mechanical & Fluid Systems
Nitinol-Actuated, Normally Open Valve Assembly (NOVA)

NASA Goddard Space Flight Center has developed the NOVA zero-leak, permanent isolation valve that helps prevent leaks in space propulsion systems with operating pressures less than or equal to 500 psia. The actuator is made from nitinol, a heat-activated, non-explosive, shape memory alloy and...

Briefs: Test & Measurement
Deployable Emergency Shutoff Device Blocks High-Velocity Fluid Flows

NASA's Marshall Space Flight Center has developed a device and method for blocking the flow of fluid from an open pipe. The device plugs, controls, and meters the flow of gases and liquids. Anchored with friction fittings, spikes, or explosively activated fasteners, the device...

Briefs: Medical

For the millions of people every year who have or need medical devices implanted, an advancement in 3D printing technology could enable significantly quicker...

Briefs: Mechanical & Fluid Systems

Typical butterfly valves cannot seal at both ambient and cryogenic temperatures. At cryogenic temperatures, valves grow and shrink, changing critical dimensions such as distance between the disc and seat....

Briefs: Test & Measurement

Check valves are traditionally designed as a simple poppet/spring system where the spring is designed to equal the force created from the sealing area of the valve seat multiplied by...

Briefs: Mechanical & Fluid Systems

In biology, there are many examples where light induces movement or change — think of flowers and leaves turning toward sunlight. Magnetic elastomeric composites were developed that move in different...

Articles: Mechanical & Fluid Systems

A new valve concept consists of a solid piston floating in a medium to control a flowstream. Although the conical shape of the seat is a prominent feature of the valve, especially when the concept was...

Briefs: Sensors/Data Acquisition
Hydraulic-Based Spherical Robot

Current spherical robots rely upon rotating mechanical weights inside the sphere to change the center of gravity of the sphere, causing the robot to roll. The use of rotating mechanical weights is not optimal due to the reliance upon moving parts, which can present burdensome maintenance issues. It would be...

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

A fundamental advance in controlling soft robots involves using magnetic fields to remotely manipulate microparticle chains embedded in soft robotic devices. Several devices have been developed...

Briefs: Test & Measurement

A component leak test apparatus investigates the performance of fittings at low temperature and/or high pressure. Its performance was quantified by measuring the ability to hold cold pressurized gaseous helium...

Briefs: Mechanical & Fluid Systems

This technology is designed to protect against leaks in solenoid, check, manual, and relief valves, as well as disconnects and regulators.

NASA’s Marshall Space Flight Center has developed a new,...

Briefs: Mechanical & Fluid Systems

NASA’s Marshall Space Flight Center scientists have invented a novel valve actuator where the primary actuating system and return spring system are arranged non-collinearly. In the past, valve actuators...