Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Cox .049 heatsink question Babe_b10
Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Cox Engine of The Month
May-2020
Levent Suberk's

"Medallion .049"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


Cox .049 heatsink question Empty

Cox .049 heatsink question

Go down

Cox .049 heatsink question Empty Cox .049 heatsink question

Post  roddie on Tue Nov 18, 2014 7:14 pm

Was the heatsink designed to work in tandem with the "fan" on the output shaft of the worm-drives Cox put in models like their "Sand Blaster"? Will the heatsink provide adequate cooling if used alone? I have thought about using one in a marine application.. as well as on a cowled-in/inverted cylinder aircraft application.. as sort of a radiator. I could make a functional air-scoop for it.

This photo shows the popular-style car worm-drive on the left.. The drive on the right doesn't have a "fan". Maybe a higher model speed provided for ample cooling.. (once it got going...) than the lower-geared worm-drive models?

Cox .049 heatsink question Coxhea10


Below/left shows my Dumas water-jacket designed for the Cox .049 engine in a marine application.. (I think it needs a longer screw...  What? ) The 3 Cox heatsinks on the right; I purchased separately as parts.
Cox .049 heatsink question 9-1-1410
roddie
roddie
Top Poster
Top Poster

Posts : 6863
Join date : 2013-07-17
Age : 60
Location : N. Smithfield, Rhode Island

http://www.stilburnin.com

Back to top Go down

Cox .049 heatsink question Empty Re: Cox .049 heatsink question

Post  dckrsn on Tue Nov 18, 2014 8:01 pm

Hey Roddie, here's another one.
I think this one is from a GTP Nissan
RC car. There was no fan, as the buisness end
of the engine was taken up with flywheel/clutch.
I'm thinking this heatsink was hanging out in clean
air when the car was rolling.
This set-up is where the no-fin glow head came
from(I think).
Bob
Cox .049 heatsink question Heat_s10
Cox .049 heatsink question Heat_s11
dckrsn
dckrsn
Diamond Member
Diamond Member

2019 Supporter

2020 Supporter

Posts : 2186
Join date : 2010-10-21
Age : 67
Location : Long Island, New York

Back to top Go down

Cox .049 heatsink question Empty Re: Cox .049 heatsink question

Post  roddie on Tue Nov 18, 2014 11:22 pm

dckrsn wrote:Hey Roddie, here's another one.
I think this one is from a GTP Nissan
RC car. There was no fan, as the buisness end
of the engine was taken up with flywheel/clutch.
I'm thinking this heatsink was hanging out in clean
air when the car was rolling.
This set-up is where the no-fin glow head came
from(I think).
Bob
Cox .049 heatsink question Heat_s10
Cox .049 heatsink question Heat_s11

You're probably right Bob.. there'd be better heat transfer to the sink, than with a finned head.

The Dumas water-jacket is almost twice the weight of the Cox cat.#1970 heatsink, but I guess; in a boat.. it doesn't matter as much.


29gr. for the water-jacket
Cox .049 heatsink question Dsc02211


15gr. for the heatsink
Cox .049 heatsink question Dsc02212
roddie
roddie
Top Poster
Top Poster

Posts : 6863
Join date : 2013-07-17
Age : 60
Location : N. Smithfield, Rhode Island

http://www.stilburnin.com

Back to top Go down

Cox .049 heatsink question Empty Re: Cox .049 heatsink question

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum