Frigidaire DW motors

[vacerator]

Rex,

thanks for the tutoring. I did not know that.
I am only familiar with the C-sine type of DC motor in miniature.
A few of my Marklin ho scale locomotives have them.
They run so smooth at low speed.
As they were very costly to make, commencing with the recession, they changed the design to a compact can style, and at first there were some problems with pcb board compatability. This explains it maybe.
Note that the Marklin ho is a three rail 16 volt A/C system, so even their armature and commutator older motors were rectification equipped since the early 90's for digital operation.
Now they even have RFID recognition chips. As soon as a loco is placed on the rails, the control unit screen or your computer screen shows which one it is.
There are two rail DC systems also for 12 volt 2 rail DC.

 

[gelaundry4ever]

frigidaire pumps

I noticed that the BOL model frigidaires have a single speed pump while the TOL models have a variable speed pump. Why is that?

 

[johnb300m]

Uhhh, it's like that because Frigidaire's marketing group wants their TOL units to have more flexible features so they can charge more money.
That's what makes them TOL.

 

[vacerator]

Frigidaire is

under the upcharge of Electrolux. Entry level professional line, Electrolux, and Icon.

 

[Chetlaham]

Bosch

Question... Are Bosch dishwasher motors related to GE's BOL motors? The stator and back molding holding the bearings looks exactly like GE's, just made of plastic. See 4:50:

 

[Chetlaham]

Better one

4:52:

 

[Chetlaham]

Oh, to add

It looks like you guys are right. I found this thread with a new GE dishwasher (congrats btw ) and the motor looks identical to Frigidaire's.

http://www.automaticwasher.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?49214

 

[panthera]

I always learn so much from these discussions

Especially about the changing motors which power so many of our vintage appliances.

This is a big part of what makes this site so fun.

 

[Chetlaham]

Knowledge

This place is bar none. Really eye opening.

As for variable speed pumps... one theory I have might be low water ususage. Some ultra high end machines from the past would actually cycle the motor every couple of seconds. The sump would fill, the motor would rev up sending water to the arms and then it would coast down for water to re-enter the sump. When it did it would rev back up again. If the motor rain continuously 2/3 of the time it would be pulling in air.

Frigidaire, at least their low end models over come this by using a diverter so only one wash arm can run at a time.

 

[gelaundry4ever]

frigidaire pump rpm

So, I guess the pump on the Frigidaire fbd2400kw spins at about 3600 rpm's if I'm not mistaken. Please correct me. I also heard, however, that they spin at either 3100 or 3200 rpm's. Please correct me.