Hello Dave,
At one time, I have my Dayton 6 inch blower fan that also had a 6 inch carb
air cleaner, remotely mounted on the front radiator cross support. A
aluminum 3 inch tubing was first bent with a thin wall conduit bender then
was roll flat to about 1 inch thick with a sheet metal shop rollers so it
would lay nice on the inner fender.
A short length of this 3 inch tubing was also curve to fit the radius of the
motor and also roll flat. One end was cap and the other end was connected
to a length of 3 inch air hose that was left somewhat un-expanded, not
expanded all the way out. A square hole was cut in the brush cover and this
short length of flatten 3 inch tubing and was bolted to the brush cover
while the brush cover was off the motor.
It is best to tapped the brush cover so there is no nuts expose inside the
housing. I use short 3/8 or 1/3 inch long 10/32 hex head screws that was
inserted through the inside of this duct which threaded into the brush
cover. To turn the this screws, they are only place about 3/8 inch from the
edge of the cut out and you can get them started with you fingers. Use one
of those ratchet 3/8 inch box wrenches to tighten up.
You could use a socket drive wrench by drilling a bolt hole all the way
through this curve flatten tubing and insert four aluminum guild tubing for
the 10/32 inch bolts. Make the tubing flush with the top of this tubing and
your bolts are now longer to go through this duct work. I fine this was
best, because I can use a washer and lock washer on the outside instead
inside of this duct, where they could become loose and fall into the motor.
Later, when I remove the front battery box and combine all the batteries in
the middle of the EV, I was able to mounted this fan directly on the brush
cover of a Warp motor. A curve steel bracket was made to fit over the
screen cover which has a 1/8 inch rubber gasket between the screen and the
cover. This curve bracket was made from a segment of a 10 inch tubing and
had tabs weld on it which extended down the front of the motor and bolted to
two of the bolt holes that are tapped on the front bell.
Roland
----- Original Message -----
From: "dave cover" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Sent: Tuesday, October 09, 2007 6:22 AM
Subject: [EVDL] ADC 9 air flow requirements
> I'm working on adding some forced air flow to my motor and I'm wondering
> if
> anyone knows how much air (cfm) the built in impeller moves. I want to
> make
> sure I provide enough cooling for low speeds but not impede the existing
> airflow when it's up to speed. I'm also thinking of adding four smaller
> fans, one per brush opening instead of one large fan with ducting around
> the
> whole brush housing. I do have a bit of a clearance issue, so whatever
> manifold I make will only have about an inch of clearance above the motor
> in
> one spot.
>
> Any thoughts on the issue would be appreciated.
>
> Thanks
>
> Dave Cover
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
At one time, I have my Dayton 6 inch blower fan that also had a 6 inch carb
air cleaner, remotely mounted on the front radiator cross support. A
aluminum 3 inch tubing was first bent with a thin wall conduit bender then
was roll flat to about 1 inch thick with a sheet metal shop rollers so it
would lay nice on the inner fender.
A short length of this 3 inch tubing was also curve to fit the radius of the
motor and also roll flat. One end was cap and the other end was connected
to a length of 3 inch air hose that was left somewhat un-expanded, not
expanded all the way out. A square hole was cut in the brush cover and this
short length of flatten 3 inch tubing and was bolted to the brush cover
while the brush cover was off the motor.
It is best to tapped the brush cover so there is no nuts expose inside the
housing. I use short 3/8 or 1/3 inch long 10/32 hex head screws that was
inserted through the inside of this duct which threaded into the brush
cover. To turn the this screws, they are only place about 3/8 inch from the
edge of the cut out and you can get them started with you fingers. Use one
of those ratchet 3/8 inch box wrenches to tighten up.
You could use a socket drive wrench by drilling a bolt hole all the way
through this curve flatten tubing and insert four aluminum guild tubing for
the 10/32 inch bolts. Make the tubing flush with the top of this tubing and
your bolts are now longer to go through this duct work. I fine this was
best, because I can use a washer and lock washer on the outside instead
inside of this duct, where they could become loose and fall into the motor.
Later, when I remove the front battery box and combine all the batteries in
the middle of the EV, I was able to mounted this fan directly on the brush
cover of a Warp motor. A curve steel bracket was made to fit over the
screen cover which has a 1/8 inch rubber gasket between the screen and the
cover. This curve bracket was made from a segment of a 10 inch tubing and
had tabs weld on it which extended down the front of the motor and bolted to
two of the bolt holes that are tapped on the front bell.
Roland
----- Original Message -----
From: "dave cover" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Sent: Tuesday, October 09, 2007 6:22 AM
Subject: [EVDL] ADC 9 air flow requirements
> I'm working on adding some forced air flow to my motor and I'm wondering
> if
> anyone knows how much air (cfm) the built in impeller moves. I want to
> make
> sure I provide enough cooling for low speeds but not impede the existing
> airflow when it's up to speed. I'm also thinking of adding four smaller
> fans, one per brush opening instead of one large fan with ducting around
> the
> whole brush housing. I do have a bit of a clearance issue, so whatever
> manifold I make will only have about an inch of clearance above the motor
> in
> one spot.
>
> Any thoughts on the issue would be appreciated.
>
> Thanks
>
> Dave Cover
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
