Forced Induction - Supercharger vs. Turbo Charger
This video was made to describe in moderate detail the differences between Superchargers and turbo Chargers, as well as describing the components, advantages, and disadvantages to each. Complementing the speaking track is a slideshow of related pictures and videos. I hope this video helps some of you curious up and coming mechanics to better understand methods of forced induction. Please comment maturely, and enjoy!
Do-It-Yourself Turbocharger Turbojet
This is a run-up of my home built turbocharger turbojet engine. Long, but maybe of some interest to other engine builders. It is quite old now and dated somewhat and I now know far more about jet engines than I did then. Please go easy on me guys... It is my first video!
I would like to issue a challenge to all fellow Do it Yourself turbojet engine builders and brushless electric R/C park flyer hobbiests/manufacturers out there.
Please comment and discuss the feasibility of mounting a small "outrunner" style permanent magnet brushless electric motor to the compressor side of this and similar engines. I realize that shaft harmonics and bearing limitations will play a very significant role in whether or not such a motor/generator combination would hang together at 140000 RPM or more. Of course, associated power electronics with the ability to switch from starter motor to DC generator would need to be designed as well to efficiently (relatively speaking) produce electricity at these ultra high speeds.
Such a device would mimic some of the hybrid turbocharger or "electrically assisted turbochargers" that have been developed by Garrett and others in recent years. These have been designed, developed and built to reduce "turbo lag" and recover wasted energy in the form of electricity with the intention of supplementing the charging system in vehicles. They have not quite made it to market yet in any production vehicles that I know of. I am crossing my fingers!
A hybrid turbocharger in my opinion is the Holy Grail for DIY turbojet enthusiasts.
Once this exists as an off the shelf device, a whole world of potential uses opens up!
An inexpensive, simple, robust turbojet engine! Heat and electricity with only one moving part!
Imagine a tiny turbocharger based boiler in your basement that would heat your home, heat your domestic water AND charge your batteries in an off-grid or grid tied electrical system.
It would easily burn almost any conventional fuel including natural gas, propane, diesel, kerosene, waste oil, waste vegetable oil, bio-diesel, pellets, garbage and even wood logs as has been proven with the proof of concept device built by myself and Mark Nye at Nye Manufacturing and featured on The Discovery Channel's Daily Planet.
Your comments and discussions about how a PM motor generator could be adapted to this task are anticipated.
As promised, I am currently (slowly) working on a large afterburning VT-50 based engine (actually three of them) that will hopefully produce a combined two or three hundred pounds of thrust and be featured on Youtube soon.
I would like to run all three together in a stretched Quad ATV or mini dragster to take around to the car shows and make some noise. My concept for this engine will to both fuel and lubricate it with waste motor oil. Hopefully I will be able to offer construction plans and combustion chamber kits if it is successful and interest warrants it.
Thanks for looking! Good luck with your projects!
Overkill396
VW Volkswagen Passat turbocharger replacement
VW Passat turbo charger replacement. Function of turbocharger and why this particular turbocharger needed to be replaced.
Courtesy of Follettmotors VWAudi Blog
http://www.follettmotors.com/vwaudiblog
VW TSI ENGINE ANIMATION
TSI TECHNOLOGY
Following the success of its TDI and FSI engines, Volkswagen is launching the latest in a line of pioneering inventions with the introduction of TSI petrol technology.
FSI uses the direct injection of petrol into the combustion chamber to improve efficiency and hence reduce fuel consumption and emissions. Taking this further, TSI uses -- for the first time ever -- an FSI engine which is then dual-charged through a combination of an engine driven Supercharger and an Exhaust gas turbocharger arranged in series.
The driving characteristics of the new TSI engine are improved over those of the current FSI unit. The belt-driven Supercharger operates at the lower engine speeds, with the turbocharger coming in as engine speed increases. The result of this is excellent driveability and performance throughout the range with no turbo lag and high maximum torque.
Key to the TSI's success is that direct injection allows an abnormally high compression ratio of 10:1 to be used in conjunction with high maximum Boost pressure of up to 2.5 bar absolute. This enables the relatively small engine to use very high gearing to provide exceptional fuel efficiency for a petrol engine, particularly at motorway cruising speeds. As an additional bonus, the TSI engine provides driver enjoyment, producing high power and torque across a rev range from 1,000 to 6,500 rpm.
The new TSI engine has a capacity of 1.4-litres (1,390 cc) and produces either 140 or 170 PS. The 170 PS version has the same peak power as a conventional 2.3-litre petrol unit but with 20 per cent lower fuel onsumption, returning 38.2 mpg on the combined cycle. It also produces impressive torque of 177 lbs ft (240 Nm) from 1,750 through to 4,500 rpm. All TSI engines drive through a manual six-speed gearbox. A DSG automatic option is also available with the 170 PS engine. This will be offered later in the year with the 140 PS unit.
TSI technology has already received international acclaim, having been named Best New Engine of 2006 in the International Engine of the Year Awards. It also won the 1-litre to 1.4-litre category.
For more infomation on TSI technology along with more European motor news that you want to read at EuropeanMotorNews.com
Thank you for reading this post.
Manny
Turbocharging 101 - Wastegate Basics
Here we see what should not be done on an internal wastegate setup, which ultimately lead to the customers engine blowing from overBoosting
