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Electrochemical Process Machines Complex Steel Pistons William J. Zdeblick Federal-Mogul Corp. Southfield, Michigan High-precision electro-erosion machining achieves form tolerances within a few microns at a capital cost about two thirds less than conventional machining. Fig 1 — The variation in mechanical and thermal loads under operating ...

Electrochemical hydrogen compressor - Wikipedia

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Hydrogen is typically produced at relatively low pressures (20–30 bar) and must be compressed prior to transport. Most compressors used today for gaseous hydrogen compression are either positive displacement compressors or centrifugal compressors. Alternatives to mechanical compression that are currently in the research and development stage include the use of electrochemical reactions ...

Electrochemical Hydrogen Compression (EHC) solutions for ...

Jul 22, 2016· I know of two main methods: 1. heat engines 2. electro-chemical cells In heat engines, you use an exothermic chemical reaction to heat a fluid that has been compressed. This fluid is then expanded against a moving mechanical part like a piston or ...

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An electrochemical hydrogen compressor is a hydrogen compressor where hydrogen is supplied to the anode, and compressed hydrogen is collected at the cathode with an exergy efficiency up to and even beyond 80% for pressures up to 10,000 psi or 700 bars.

Hydrogen compressor - Wikipedia

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Conventional methods of compression involve specialty mechanical piston driven hydrogen compressors. These hydrogen compressors can be expensive and energy intensive because they need to be built with extremely low tolerances, and work harder to compress hydrogen gas because of hydrogen's extremely small molecular size and weight.

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HyET is developing Electrochemical Hydrogen Compression (EHC) as a highly efficient solution for the broader deployment of hydrogen infrastructure. This innovative technology is suitable for hydrogen refueling stations for vehicles, and for the injection of renewably produced 'green' hydrogen into the natural gas pipeline grid.

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Alibaba.com offers 3,371 small electric pistons products. About 20% of these are pumps, 1% are dc motor, and 1% are machinery engine parts. A wide variety of small electric pistons options are available to you, such as waterproof, drip-proof, and totally enclosed.

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Jan 27, 2012· A tight piston is less likely to rock, make noise, and burn oil. A rocking piston wears rings and increases blow-bye. The close fit of the KB piston allows the piston rings to truly seal, minimizing blow-by. The design flexibility enjoyed by the KB series of pistons has an advantage over present day forging practices.

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An electrochemical hydrogen compressor is a hydrogen compressor where hydrogen is supplied to the anode, and compressed hydrogen is collected at the cathode with an exergy efficiency up to and even beyond 80% for pressures up to 10,000 psi or 700 bars.

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An ionic liquid piston compressor is a hydrogen compressor based on an ionic liquid piston instead of a metal piston as in a piston-metal diaphragm compressor. Electrochemical hydrogen compressor. A multi-stage electrochemical hydrogen compressor incorporates a …

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Jun 11, 2019· Applied with a specific electrochemical process, the ArmorX coating leaves the piston with a distinctive glossy black appearance. "It just about makes the piston bulletproof," says Fussner. "It's very good in situations with intense rod angles and cylinder pressure."

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Pyrotechnic thrusters are another form of a pyrotechnic piston actuator. They are often not called a piston actuator or pin pusher because they generally perform a more controlled amount of work. The end of the piston is usually attached to the system requiring movement from point A to B.

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The other problems mentioned above are common to electromechanical systems that have many types of moving parts. This project willl develop an electrochemical hydrogen compressor as a highly modular, isothermal device with no moving parts.

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Electro-chemical drilling is a process that leaves no burrs or distortions. A separete deburring operation is not required. Another advantage is that a large number of holes (20 or more) can be drilled simultaneously with ECM - for instance when machining a camshaft. In summary: electro-chemical drilling offers short cycle times and a lean process.

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An ionic liquid piston compressor is a hydrogen compressor based on an ionic liquid piston instead of a metal piston as in a piston-metal diaphragm compressor. Electrochemical hydrogen compressor. A multi-stage electrochemical hydrogen compressor incorporates a series …

Electrochemical hydrogen compressor - ScienceDirect

Nov 20, 2014· A Sandia team is pursuing a novel route to hybrid-electric vehicles: the free-piston engine. So called because the piston is not mechanically linked to other engine systems, such as the crankshaft, the free-piston engine may provide greater efficiency than its conventional diesel and gasoline counterparts.