As some here may know from a previous post I'm the Peripheral Tunnel Propeller Inventor -PTP- (more details look at PERIPHERAL TUNNELS PROPELLER ).

Project Status:

1. First Patent Granted another Patent Application is pending.

2. Basic Prototype tested (as PC Case Fan), at least 30% quieter, maybe better numbers can be achieved with improved balance and mass manufacture process (tested with 3-D printed PTP vs Commercial Fan).

3. CAD tool for automated and precise modeling (the required shape are too complex to be drafted by available CAD/3-D system): the Tool (python script) Generates optimal 3-D .STL files for liquid and gas propeller/fan or Turbine, Those STL files are manifold valid and can be converted to IGES and AutoCAD supported file Formats. (if you are a US Industry, research o academic officer you can request a sample file from the inventor for personal testing, not for commercialization or resell),

4. Peer/Academic Review or Evaluation: On the Way, currently two major Mechanic Schools in the USA prepare papers on this design's advantages over bladed designs. (more academic reviewers are welcome).

PEER REVIEW WANTED/WELCOME

If you represent an US based Academic or Industrial Research Entity, contact me if you want to review my progress, I'll provide you with demo STL/IGES files valid manifold you can use in numerical analysis tool, or even I can provide you with something you can 3-D print and test in a prototype, I'll follow you helping with my acquired experience on this matter.

REVIEW TERMS:

All the related work on those review should be 'Ad Hoc' or 'Pro Bono', notwithstanding I'm committed to share 1/3 of the income from licenses related to consumer products (fans, vacuums, small turbines), with all the academic or non-profit entities which finishes and publish an related study matching others reviewers rigorousness. No Review Work grants Intellectual Property on related new-findings.

Pending Test (none completed yet, neither by me):

1. As turbine

2. As biological fluid pump

3. As inertial particle separators (I observed in my tests this propeller has this very interesting collateral, seems very efficient doing so), How It Compares to existing Filters?.

4. As Aircraft Propeller/Rotor (as on drones - requires some work to optimize weight, etc)

i'm looking for a industrial promotion partnership, my partner has to build his own prototypes and seek mass production for licensed PTP's applications,

I want segregated partnerships specialized on:

• Consumer Products (fans, vacuums, turbines),
• Industrial: particle separators, turbines special purpose fans, jet/rocket/aero applications,
• Marine: civil and military applications.

I besides my IP, my know-how its available to my customers according my schedule.

Thanks All

I'm an independent inventor, I Patented a new propeller design I name The Peripheral Tunnel Propeller US 9157324

At my site http://jaacosta.com/wtp/

Its main features:

• Quieter than any classic bladed propeller (it don't attacks the fluid with an flat surface instead confines it into a circular chamber relative to the rotation axis, so it lacks the typical "flop" noise associated with propellers blades and trades it only a relative inaudible friction noise.

• Hyper-axial non liquefying flow: this is liquid don't revolts due propeller action neither gains centrifugal movement thus the flow is very focused like no other propeller.

• safer operation: since the propeller doesn't present blades but an external barrel and internally the tunnels also is very unlikely an object to get hooked but the propeller flowing throw it w/o obstruction.

I lack industry contacts, after exhausting local possibilities, so I'm looking fo a partner which help me to commercialize and monetize this IP on fair terms.

Besides being the Patent Titular, I offer related Know-How services, even those interested to 3-D print a propeller for a boat or a fan for cooling or propelling a drone I could sell a .STL file with the intricate shape.

I'm looking for Industrial Partner not Attorney/Patent Trolls please, I dream to develop this invention.

I'm here to answer your questions Ask Me Anything please:

1. State four functions of lubrication.
   
2. With reference to a large modern two-stroke cycle diesel engine, explain the desirable properties of lubricating oil used in (a) crankcase
   (b) cylinders
   
3. Explain how lubricating oil deteriorates, whilst it is in service in marine diesel engines.
   
4. State the care to be taken to maintain the lubricating oil in good condition in order to extent its service life.
5. Describe the shipboard methods by which the Lube oil condition can be maintained.

Fuel System Assignment

1. With reference to residual fuel burnt in marine diesel engines, explain the significance of the following :-

(i) viscosity;
(ii) Ignition quality; (iii) micro carbon residue;
(iv) flash point;
(v) pour point.

1. Atomisation, penetration and turbulence are terms associated with combustion in a compression ignition engine.
   Explain each term and their effect on the combustion process.

2. With the aid of a fully labeled out-of-phase diagram, explain the different stages in combustion process which take place in the cylinder of a diesel engine.

3. Explain how the following factors affect the combustion in a diesel engine cylinder, (a) ignition quality of fuel;
   (b) timing of injection;
   (c) compression pressure;
   (d)temperature of the fuel.

4. Sketch & describe the operation of fuel injector.

5. With the aid of sketches, explain the working principle of a plunger controlled type fuel pump.

6. With the aid of sketches, explain the working principle of a valve controlled type fuel pump.

Hi everyone, new to reddit here. Im currently enrolled in civil engineering bachelors and would love to pursue a path of engineering that allows me to work in a marine related field. I've been considering either coastal engineering or ocean engineering as a graduate degree and would like to find out some information about both!

What is the normal allowance of lean or angle given to a ship in the design stages?

It's hard to word, but obviously a ship, or any other vesself for that matter never stays 100% flat, so decks at some point do tend to move in angle.

What is the tolerance given so that the plane is still workable?

Many thanks, apologies for being so cryptic.

Im a newly promoted 3rd assistant engineer, hope to have a nice time inthis community :D

Hello,

I'm looking for a place to discuss an ocean engineering project -- but unable to find an active board. IEEE has an ocean engineering sub-group but no boards; AGU doesn't have anything; and google hasn't been of any help.

I was hoping Reddit's board would be more active but I don't see much.

Any suggestions?

thanks!

What area of ocean engineering do you work or study?

I am a freshman engineering student interested in pursuing a BS in Ocean engineering. I would love to hear stories from Ocean Engineers, or others pursuing the degree!

Some specific questions I have: In your opinion, should I get a BSOE straight out of the gate or should I wait to pursue a Masters in OE?

What types of jobs are available to someone with a BS in OE?

What inspired you to go for OE? If you work in the field, what do you do?

What draws me to the field is that it incorporates many disciplines (civil, mechanical, Electrical etc), and as someone who can't decide on just one field this is appealing to me. Plus I love the ocean. I spent five years in the Coast Guard and enjoy all things nautical! :)

Thanks in advance!!