[NSRCA-discussion] Cooling outrunners

[Dean Pappas]

Right you are, Earl. 
here's a 40 K sized JPEG of the Funtana setup. The inner third of both inlets feeds the motor airbox, and the outer 2/3 of each inlet feeds the "Y" duct to the battery box. A chin scoop is easier! 
 
 

 

Dean Pappas 
Sr. Design Engineer 
Kodeos Communications 
111 Corporate Blvd. 
South Plainfield, N.J. 07080 
(908) 222-7817 phone 
(908) 222-2392 fax 
d.pappas at kodeos.com 

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Earl Haury
Sent: Monday, December 18, 2006 12:23 PM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Cooling outrunners


Dean
 
That's a nice job of handling the air to an outrunner. I do something similar with the Hacker - taking motor air into the cheeks and forcing it past / through the motor, then dumping the "outside the case" air at the rear of the cheeks, the air through the motor dumps into the fuse. Battery air is ducted from the chin opening to the top of the batts into an open bottom "box" (which isolates them from motor air) then passes downward through them and exits the fuse (similar to Dave's set-up). A small scoop forces air over the ESC which is mounted to the inside - top of the fuse behind the motor. Essentially each heat generator receives its own forced air cooling and sees non of the heat from the other sources.  
 
The "shrouds" keeping the airflow where the heat is are as important as the ducts to get it there. Adequate low pressure exits keeps everything moving.
 
Earl

 

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