The two main types of molecular pumps are the diffusion pump and the turbomolecular pump.
2.
In high vacuum, however, pressure gradients have little effect on fluid flows, and molecular pumps can attain their full potential.
3.
But Walker noted that the " molecular pump " discovered in the course of the work could have applications in infinitessimally delicate surgery.
4.
But Walker noted that the " molecular pump " discovered in the course of the work could have applications in infinitesimally delicate surgery.
5.
Molecular pumps sweep out a larger area than mechanical pumps, and do so more frequently, making them capable of much higher pumping speeds.
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Momentum transfer pumps, also called molecular pumps, use high speed jets of dense fluid or high speed rotating blades to knock gas molecules out of the chamber.
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Smaller molecules can leak in more easily and are more easily absorbed by certain materials, and molecular pumps are less effective at pumping gases with lower molecular weights.
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To allow for the low vacuum pump to not require continuous operation, while continually operating the turbo-molecular pumps, the vacuum side of a low-pressure pump may be connected to chambers which accommodate the exhaust gases from the turbo-molecular pump.
9.
To allow for the low vacuum pump to not require continuous operation, while continually operating the turbo-molecular pumps, the vacuum side of a low-pressure pump may be connected to chambers which accommodate the exhaust gases from the turbo-molecular pump.
10.
The collaboration with Wolfgang Gaede resulted in the development of the molecular pump ( 1911 ), the mercury diffusion pump ( 1913 ), and the invention of the gas ballast design, which allows vapors to be pumped with rotary vacuum pumps ( 1935 ).
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