ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Free energy Neal-Tesla Tank

Updated on December 9, 2015


I have been looking into energy producing and saving ideas at different times. Two that have caught my attention are the Neal tank and the Tesla turbine with his valvular conduit one way valve. Not very effective at low pressures. 100 PSI and above it becomes better at blocking the reverse pressure. In one direction the air resistance is small the in other the air splits in two and comes back together flowing in opposite directions attempting to cancel each other out.

Tesla's valvular conduit

Tesla's  valvular conduit
Tesla's valvular conduit | Source

Neal tank

The Neal tank uses the heat from air that is put there by the sun.
It sounds like a perpetual energy device but is not because the
sun is suppling the energy. When air is compressed it gives off
heat. This heat is used to run a Tesla type turbine. Tesla got the
idea from a water wheel device he saw in his younger years.

A water wheel near Tesla's home town

Water wheel
Water wheel | Source

How the Tesla Turbine Functions

The Tesla turbine is a bladeless centripetal flow turbine patented
by Nikola Tesla in 1913. It is referred to as a bladeless turbine.
It is also known as the boundary layer turbine because it uses the
boundary layer effect and not a fluid impinging upon the blades as
in a conventional turbine. Tesla called it adhesion: The attraction
of a fluid to a surface. And cohesion: The attraction of a fluid to
itself. As a motor the fluid comes in the outer edge and spirals
down to the outlet at the shaft. As a pump the fluid enters the shaft
area and spirals up the discs due to centrifugal force and out the
outer edge. The illustration is a motor. It can be reversed by switching the fluid to the other inlet pipe.

Inside the Tesla Turbine

How the Tesla works
How the Tesla works

Original Neal Tank

The original Neal tank developed by Bob Neal and patented in 1936
used pistons in the high pressure pump and power output air engine.
The Tesla is much simpler and requires less energy to oporate.
There was a problem with the discs warping and the machine fling
apart. Now we use carbon fiber discs to solve that.

The Original Neal Tank

Original Neal Tank
Original Neal Tank | Source

Bernoulli valve

The Neal tank also had a special one way valve that sucked in more
air then would otherwise be addmited. This is where the extra energy
comes from. This energy is used as the power output. Some of that
energy is used to drive the low pressure feed pump and the high
pressure pump for the special valves. When the high pressure hits
the valve it sucks in some low pressure air due to the Bernoulli

The Bernoulli Principle

Bernoulli Effect
Bernoulli Effect | Source

Hybrid Neal-Tesla

I propose to develop a hybrid of these various innovations and have
came up with the Neal-Tesla Tank design. It uses The standard Neal
design with Tesla type pumps and air turbine. The valves may be Neal
or Tesla valvulars pulsed via electronically controlled solenoid valves.

A Modern Disc Pump

Discflo pump
Discflo pump | Source

Some Other Applications

Tesla wanted to use his turbine in a geothermal application. The hot high pressure gases could run through the discs. This would destroy a regular bladed turbine. Or the hot gases could be run around a tank of water and the resulting steam used to power the turbine. A couple attempts where made at using it as an engine. The discs warped and it destroyed itself. Metallurgy has advanced since then and there is work being done to still make a reliable engine with few moving parts.

Geothermal Application

Tesla Turbine in Geothermal Application
Tesla Turbine in Geothermal Application | Source

This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

Show Details
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
ClickscoThis is a data management platform studying reader behavior (Privacy Policy)