Ford's answers to the NHTSA 6.7 Investigation
There was a request for a link to Ford's answer's to the NHTSA investigation posted on a previous thread, since closed. Here is the link: Ford's NHTSA Answers to the 6.7 investigation This PDF i...
Forum Discussion
NewsW,
Am sure there are many waves, from negative to positive multiplexing from
the injector...but...the journey back to the plenum is narrow/long and filled
with turns (abrupt too) and twists that would nullify significant amounts
of energy from my FEMA noodle
Then the even longer journey via the plenum and the plumbing from one
side to the other side. To then travel through the morass of whatever is
in that side's plenum
Finally though the tubing to the pump, which has several tubes of
suspect function (to me).
Am amazed that there is a 'timing' function dialed in by the OEMs
or is that an assumption made long ago in this thread or one of the
others that got closed? If truly an OEM attribute, then they drop a few
rungs in my confidence and their talent base for me.
For to time the pump piston's positive and then negative pressure
waves in concert with those generated at the injectors would seem
to me to be an impossible task
Did wonder if that stack of piezo's were wired in series (high voltage)
or parallel (high current). Also wonder if there are stress issues with
the end ones having to shoulder the forces of the whole stack. Wonder
what their MTBF is with that level of stresses
All of the above +/- waves are easily (in my mind) managed with a
'good' accumulator, which I have not been convinced exists. Or
are they depending on some level of compliance within the tubing
walls and back to that image of what looks like a rubber/synthetic
hose...still not enough, IMO, and should be a dedicated accumulator
just off of the pump output port(s)
On the membrane and separators, am sure there are much better
or higher efficiency components out there, but this is automotive
and the 'El Cheapo' mandated by the general buyers pervades
Then factor that maintenance or truly neglect most owners operate
their vehicles under.
A 100% H2O system would be both too expensive for this class
of vehicle/customer and the frequency of inspection/replacement
too high or not done at all
Didn't know that level of detail of the prop's, but did some work
for the Navy on a then funny/wacky humongous building out in
Puget Sound.
Bigger than a foot ball field and built in half that rode on rails
to open up the dry dock. After the Sub was placed and ready
to pump out the water...the building closed to hide the prop
from bad guy's satellites
Side notes...
There was a guy in SparcTech who was able to out noodle the simulations
and FEMA's super computer. Amazing, as the vectors were in the
tens of thousands after their 3rd cycle of fixes
He ID'd that their exec VP of engineering (used to be a designer at
the chip level) visited XYZ group, as that is where the new vectors
cropped up. Next quarter problems cropped up in 123 group and
in checking at his insistence...yup...that VP visited and stayed with
that group for a few weeks...
Turns out that VP micro managed whatever was the 'problem' at that time
to create more problems else where.
The made that guy a VP and so deservedly so.
It boils down to the age old garbage in, garbage out with the new DBs
getting better and better. Trust in 'your' canned DB and extensions
learned over time will produce an acceptable number of vectors and
is truly the secret sauce of today's silicon products.
Also do detested bean counter management decisions dictating the
level or number of unsolved vectors. Out of context and if any are
allowed to be left, a weighted system, but I lost all of those battles
On pressure waves...my physicists were always playing with them
when developing our solid state refrigeration compressor (cryogenic
cooling for silicon).
Since the cavity size and shape is known and controlled, they found
that playing (timing) the original or source RF pressure wave pro and con,
we could increase the efficiency and a few other new attributes that
have NOT been patented yet...but they laid us all off and the key
physicist has passed away. So, it's in my noodle for the most part
That IP scaled from postage stamp to tonnage. Known cavity size
and shape, to was able to 'tune' it. Can't image how this automotive
system can be tuned...AKA timed
Have had software groups report to my product teams and only in the
millions of lines of code and a bit more compiled
Guess they are in the billions of lines these days and what a plate
of spaghetti...
Am sure there are many waves, from negative to positive multiplexing from
the injector...but...the journey back to the plenum is narrow/long and filled
with turns (abrupt too) and twists that would nullify significant amounts
of energy from my FEMA noodle
Then the even longer journey via the plenum and the plumbing from one
side to the other side. To then travel through the morass of whatever is
in that side's plenum
Finally though the tubing to the pump, which has several tubes of
suspect function (to me).
Am amazed that there is a 'timing' function dialed in by the OEMs
or is that an assumption made long ago in this thread or one of the
others that got closed? If truly an OEM attribute, then they drop a few
rungs in my confidence and their talent base for me.
For to time the pump piston's positive and then negative pressure
waves in concert with those generated at the injectors would seem
to me to be an impossible task
Did wonder if that stack of piezo's were wired in series (high voltage)
or parallel (high current). Also wonder if there are stress issues with
the end ones having to shoulder the forces of the whole stack. Wonder
what their MTBF is with that level of stresses
All of the above +/- waves are easily (in my mind) managed with a
'good' accumulator, which I have not been convinced exists. Or
are they depending on some level of compliance within the tubing
walls and back to that image of what looks like a rubber/synthetic
hose...still not enough, IMO, and should be a dedicated accumulator
just off of the pump output port(s)
On the membrane and separators, am sure there are much better
or higher efficiency components out there, but this is automotive
and the 'El Cheapo' mandated by the general buyers pervades
Then factor that maintenance or truly neglect most owners operate
their vehicles under.
A 100% H2O system would be both too expensive for this class
of vehicle/customer and the frequency of inspection/replacement
too high or not done at all
Didn't know that level of detail of the prop's, but did some work
for the Navy on a then funny/wacky humongous building out in
Puget Sound.
Bigger than a foot ball field and built in half that rode on rails
to open up the dry dock. After the Sub was placed and ready
to pump out the water...the building closed to hide the prop
from bad guy's satellites
Side notes...
There was a guy in SparcTech who was able to out noodle the simulations
and FEMA's super computer. Amazing, as the vectors were in the
tens of thousands after their 3rd cycle of fixes
He ID'd that their exec VP of engineering (used to be a designer at
the chip level) visited XYZ group, as that is where the new vectors
cropped up. Next quarter problems cropped up in 123 group and
in checking at his insistence...yup...that VP visited and stayed with
that group for a few weeks...
Turns out that VP micro managed whatever was the 'problem' at that time
to create more problems else where.
The made that guy a VP and so deservedly so.
It boils down to the age old garbage in, garbage out with the new DBs
getting better and better. Trust in 'your' canned DB and extensions
learned over time will produce an acceptable number of vectors and
is truly the secret sauce of today's silicon products.
Also do detested bean counter management decisions dictating the
level or number of unsolved vectors. Out of context and if any are
allowed to be left, a weighted system, but I lost all of those battles
On pressure waves...my physicists were always playing with them
when developing our solid state refrigeration compressor (cryogenic
cooling for silicon).
Since the cavity size and shape is known and controlled, they found
that playing (timing) the original or source RF pressure wave pro and con,
we could increase the efficiency and a few other new attributes that
have NOT been patented yet...but they laid us all off and the key
physicist has passed away. So, it's in my noodle for the most part
That IP scaled from postage stamp to tonnage. Known cavity size
and shape, to was able to 'tune' it. Can't image how this automotive
system can be tuned...AKA timed
Have had software groups report to my product teams and only in the
millions of lines of code and a bit more compiled
Guess they are in the billions of lines these days and what a plate
of spaghetti...
