Ford's answers to the NHTSA 6.7 Investigation

NewsW wrote:
Is there a fluid dynamics issue with the pumps?

Cavitation?

Resonant frequency?

Fluid mechanics?

Supercritical fluids?

How components / housings react to high temperature and pressure?

Validation of simulation models (that always spell "opps")

Circumstantial evidence in the hiring....

When at the labs and hiring summer interns in prep to weed them out for
hire full time after they graduate...we (my scientists and I) coined
'red light, green light DESIGNERS'....these kids are extremely bright
and well schooled...but...they are so convinced that the CAM simulations
are absolute

Meaning that they (most) will just take it and move onto their next task

Kept an eye on the ones who questioned the simulation results and asked
Passed on those green/red light kids.

We are also losing the old guard who have the feeling for how it should
be. Very, very rare to find kids these days who have that touch/feeling...

See this when visiting their U's and corporations using our stuff.
Worse in the corporations visited, as some engineering management has
a loosey goosey tolerance for the numbers of vectors accepted to pass the review gate

Scary...


{edit}.... Just noticed that if those recruiter spec's are true and most
likely you are correct in that they are hiring for this problem...that
those attributes will normally be interviewed as individual and disassociated
to the whole system (multiplexed)

When I hired for research, always looked for that rarity of wide
vision (both literal and figurative) with a healthy dose of free
associative (far out there oblique and/or ancillary) skills

Things like that one way valve becoming a hammer with it's own spring
and the vacuum created by the piston. How does that thing seal? O-Ring
or metal on metal or some other compliant material? Hammered to pit or
flake or ????

Hammer to further create an even higher vacuum to cavitate somewhere
in the compression chamber ?

Or this new one just popped up....micro bubble in the fluid that then
expands due to this vacuum/cavitation to then create a 'dry' (non-lubed)
spot for a micro second...

Oh...more on that thought...then factor in very high temps of both the
fluid and the solid (DLC coated metal) that will exacerbate that micro
bubble's ability to vaporize

We had that problem on silicon (chips) cooled via flooded fluid at
cryo temps. Both a micro bubble and/or vaporization of the fluid to
thermally shock the silicon. Why I invented diamond foam used with
a high PSI hosed in (droplets) cryo fluid.