One of the theoretical advantages of the dynamic system in these patients was that it allowed axial motion
, thus decreasing stress at the bone-screw interface.
Hydrodynamic pressure can reach high values and handle external load in case of axial piston machines as it was shown in a work by Pelosi , though axial motion
has a significant impact on the pressure that is built in the gap, therefore, this solution also may not be basic for advanced gap seal design.
The main reason is that, compared with complicated axial motion
, the radial motion of the rotor is relatively simpler and smoother.
Here only the axial motion
of the ring in the groove will be considered and assume that groove surfaces are flat.
It offers both rotary and axial motion
. It can reach up to 152.4 cm into the bore, and as the torch rotates, it deposits one continuous layer of metal inside the bore, laying up to 2.27 kg of metal per hour.
The GP16 precision spindle combined with a DC motor make it possible to transform rotary motion into axial motion
. Gearheads, motors, encoders, and controllers from maxon's standard program are used to drive the spindles.
Maxon Motors has a new product for converting rotary motion into linear motion--the GP16 precision spindle transforms rotary motion into axial motion
when combined with a DC motor.
There are also a large range of impellers that can be used: radial flow impellers such as the Rushton Turbine move the fluid out radially, axial flow impellers move the fluid out in an axial direction, and mixed flow impellers generate both radial and axial motion
. These three types of impellers are generally much smaller than the tank and cause fluid motion by stirring at high speeds.
* Reduced axial motion
with no need for part re-registration.
Hydraulic analysis of annular flow with axial motion
of the inner pipe have been carried out (Haige and Xisheng 1996, Filip and David 2003) for different pipe/borehole configurations and fluid models.
In order to avoid this possibility, a fluidic system designer might consider utilizing static seals in their system with magnetic couplings to facilitate rotary or axial motion
inside the sealed system.
They can be built to fit worn or damaged shafts with high run-out, thermal growth, and axial motion
. ATEX-compliant seal designs are available.