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A noble diode pump is a type of ion pump used in high-vacuum applications that employs both a chemically reactive cathode, such as titanium, and an additional cathode composed of tantalum. The tantalum cathode serves as a high-inertia crystal lattice structure for the reflection and burial of neutrals, increasing pumping effectiveness of inert ...
The image titled Ion pump head jpeg is a NEG cartridge possibly from SAES Getters. It has a different pumping mechanism as it uses Non Evaporable Getter, activated with heat. This type of pump does not pump CH4 or noble gases. It should be on a different page. I have many diagrams and images of cells and modules relating to ion pumps.
The sodium–potassium pump is found in many cell (plasma) membranes. Powered by ATP, the pump moves sodium and potassium ions in opposite directions, each against its concentration gradient. In a single cycle of the pump, three sodium ions are extruded from and two potassium ions are imported into the cell.
An ionic liquid piston compressor, ionic compressor or ionic liquid piston pump is a hydrogen compressor based on an ionic liquid piston instead of a metal piston as in a piston-metal diaphragm compressor.
The static head of a pump is the maximum height (pressure) it can deliver. The capability of the pump at a certain RPM can be read from its Q-H curve (flow vs. height). Head is useful in specifying centrifugal pumps because their pumping characteristics tend to be independent of the fluid's density. There are generally four types of head:
Integral channel proteins such as the sodium-potassium pump actively maintain the electrochemical gradient through movement of sodium and potassium ions. Voltage-gated ion channels in neurons allow for transient changes in membrane potential, giving way for signal transduction through action potentials and/or neurotransmitter release.
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In contrast to ion pumps, ion channels do not build chemical gradients but rather dissipate them in order to perform work or send a signal. Probably the most familiar and best studied example is the voltage-gated Na + channel, which allows conduction of an action potential along neurons. All ion pumps have some sort of trigger or “gating ...