[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PSUBS-MAILIST] underwater thruster

Hi Stewart,
The only data I've found is what's on their site.
http://www.tsltechnology.com/marine/thrusters_data.htm
There's a data link for each of their products.
This link has reference to a person who has been experimenting
with running RC type motors underwater without any waterproofing.
http://www.submarineboat.com/rov_joystick_for_props.htm#DC_Motors
Alan
----- Original Message -----
Sent: Friday, September 03, 2010 9:07 PM
Subject: RE: [PSUBS-MAILIST] underwater thruster

is a paper on them, but it costs $30-. ß tight arse?s? Information should be free! J

 

Do you have any sort of specs? Voltage/current/wattage/rpm/horsepower/depth/pressure?

 

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Alan James
Sent: Friday, 3 September 2010 6:03 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] underwater thruster

 

Thanks Stewart,

Would be great if you could build something like that.

These units were developed by the University of Southampton & there

is a paper on them, but it costs $30-.

Keep us informed of any progress.

Regards Alan

----- Original Message -----

Sent: Friday, September 03, 2010 6:19 PM

Subject: RE: [PSUBS-MAILIST] underwater thruster

 

Hi Alan! I?m doing some investigative work into ROV?s and surface autonomous vehicles at the moment? and I?m contemplating designing my own motors for the surface autonomous boat?

 

Ive also been into building RC planes for quite a while? Brushless RC motors = what is exactly needed?

 

The magnets are mounted in the external stator and inside the motor is 3 coils mounted at 120 degree?s apart? and a controller works out which of the 3 phases to energize to make the motor rotate at the demanded RPM?

 

This design means that an insulator/isolator can exist between the stator and the coils(as long as there is a slight clearance for oil or possibly even sea water to cool the motor?  if the coils and magnets can be sufficiently insulated/corrosion proofed

 

Only the magnets/magnet housing/bearings and other drive components need really be waterproofed! J

 

 

 

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Alan James
Sent: Friday, 3 September 2010 12:19 PM
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] underwater thruster

 

Hi,

Came across these underwater thrusters.

They are "rim driven" with one moving part. It looks like the kort nozzle or duct

is the stator & the propeller is the rotor. They are rated for any depth.

Am awaiting a price, got an idea they aren't cheap.

Alan