Topic: Car Blower Motors (Read 9400 times)

lakeshore · « **on:** September 20, 2014, 11:05:56 am »

Hi there

thinking of using a car blower motor on my 36 inch motorised coal barge and wondered if anyone has or is using them ?.

Cheers
John

derekwarner · « **Reply #1 on:** September 20, 2014, 11:30:10 am »

Evening John.......motor vehicle fan motors

1. huge torque
2. low RPM
3. low current draw

On such a low speed vessel.....go for it

..... Derek

lakeshore · « **Reply #2 on:** September 20, 2014, 11:38:43 am »

Hi Derek

thats what I was thinking but not much info about them.

Shipmate60 · « **Reply #3 on:** September 20, 2014, 01:03:35 pm »

Derek,
Not so low rpm. Usually about 5000 rpm but as you say huge torque so can swing quite a large prop at that speed!!

Bob

derekwarner · « **Reply #4 on:** September 20, 2014, 01:21:56 pm »

Evening Bob..........

1. some 30 years ago I used 12 volt motor vehicle ventilation motor on 6 volts in a model ship application......
2. the output speed was ~~ 2200 RPM unloaded with a current draw of 0.4 amps
3. the prop was 4" diameter x 4" pitch........and drawing 1.6 amps @ approx. 1200 RPM when under load in the pool

Brilliant choice of motor for a slow speed application

Derek

Rottweiler · « **Reply #5 on:** September 20, 2014, 05:30:31 pm »

Still have some Renault blower motors in some of my boats today,a good 30 years old.
Mick F

jarvo · « **Reply #6 on:** September 20, 2014, 06:58:07 pm »

HI John

Superb choice, go to a local vehicle recycling centre, I have an Audi, 2 Fords and an unknown German motor, they are very powerful don't draw much power and seem to go on for ever.

Regards

Mark

lakeshore · « **Reply #7 on:** September 20, 2014, 07:07:36 pm »

Thank you kindly Gents all good information.

John.

mrturbo553 · « **Reply #8 on:** September 20, 2014, 07:41:06 pm »

Mk4 golf blower motors are very easy to remove and a reasonable size etc
Aid

jarvo · « **Reply #9 on:** September 20, 2014, 08:30:46 pm »

Forgot to mention, radiator blowers, very easy to remove

Mark

seathug · « **Reply #10 on:** October 07, 2014, 04:14:36 am »

I have this blower motor for my bangka boat

Subculture · « **Reply #11 on:** October 07, 2014, 09:46:43 am »

Just a note about radiator blower motors. They are generally much higher consumption than heater blower, and turn at lower RPM with enormous torque, as they are wound to drive a very large fan direct drive. Unless you're building a boat with a very large prop e.g. over 6", then avoid them and look for the heater blowers or a smaller motor.

chuffy · « **Reply #12 on:** October 07, 2014, 02:25:22 pm »

Just had a look at a couple of heater blower motors that I have in the draw, from either ford or VW, one runs at 4464 rpm and the other at 4106 rpm, and I have one in service in a tug ( Northsider with 120mm prop, a real mean machine) that turns at 4610 rpm max. They are all very low consumption and plenty of torque and run cool. I always use fuel pipe to connect motor to prop shaft, almost silent and very efficient.

Paul.

Shipmate60 · « **Reply #13 on:** October 07, 2014, 05:01:59 pm »

Not around 2000 rpm as suggested earlier.

Bob

Netleyned · « **Reply #14 on:** October 07, 2014, 05:10:45 pm »

That was a 12v motor running at 6 v
I think

Bob

Ned

chuffy · « **Reply #15 on:** October 07, 2014, 07:07:04 pm »

The speeds referred to in my post above are with a motor running on 12v.

Paul

seathug · « **Reply #16 on:** October 07, 2014, 07:46:34 pm »

How about using the motor of a rc bump starter?

Stavros · « **Reply #17 on:** October 07, 2014, 09:58:23 pm »

motor from a rc starter is a mfa 850 and runs at around 8k rpm

Dave

jarvo · « **Reply #18 on:** October 07, 2014, 10:08:41 pm »

HI Subculture

Thanks for the update on radiator motors being hi drain, wasn't aware

Regards

Mark

hmsantrim · « **Reply #19 on:** October 07, 2014, 11:42:40 pm »

Hi John.
back in the 80`s had an 8ft bread n butter hull 1/96 scale WWII Ark Royal which would run all day on a fan motor.
Frank
photo img983_zps70530d4c.jpg

seathug · « **Reply #20 on:** October 08, 2014, 02:03:07 am »

Hi frank
Thats a huge nice looking ship
What battery were you using back then to power that fan motor?

hmsantrim · « **Reply #21 on:** October 08, 2014, 10:54:20 am »

Hi Seathug.
battery was large as it doubled up as ballast one of these.
Frank
http://www.leadacidbatterystore.co.uk/products/Yuasa-Battery-NP24%252d12I-24Ah-12V-SLA.html?gclid=CIejg_HjnMECFfSWtAod_B4AxQ

seathug · « **Reply #22 on:** October 08, 2014, 08:42:47 pm »

So if youre going to use ac car blower
What esc would be suitable for this motor?

malcolmfrary · « **Reply #23 on:** October 08, 2014, 09:42:06 pm »

Quote from: seathug on October 08, 2014, 08:42:47 pm

So if youre going to use ac car blower
What esc would be suitable for this motor?

Not too sure where the ac comes from. If its from a car, it will be DC. An older car might be field wound, but anything modern is likely to be a permanent magnet motor, so any ESC that can handle the voltage and current will do the job. As a clue for current requirements, look at the car manual for the fuse rating supplying the motor. Anything higher than that will be fine.

hmsantrim · « **Reply #24 on:** October 09, 2014, 01:40:02 am »

Hi seathug.
The speed controller question can`t be answered at this point as there are two many unknown variables.
Eg 1. what voltage are you going to run the motor on
2. what size is the prop going to be
3. what material is the prop going to be metal or plastic
4. how many blades on the prop
5. what type of craft is the motor going to drive
6. what will the all up weight be
In the main the guys I knew that used a fan motor ran them on 12v to turn a 75-100mm three or 4 blade brass prop on a scale model
usually a tug, merchant ship, or battleship. The were no ESC`s back then so it was the ubiquitous "Bobs board" or the servo with two micro switches for fwd / astern. The motor drew @ 4- 5amps on this set up.

frank

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Author Topic: Car Blower Motors (Read 9400 times)

Stavros