Flyprat


Go Back   Flyprat > Flyteknisk forum

Notices

Reply
 
Thread Tools Display Modes
Old 02-04-2015, 11:48   #1
sail4fun
ScanFlyer Mile High Club
 
sail4fun's Avatar
 
Join Date: Sep 2004
Location: NO
Posts: 10,014
Thumbs up Siemens: World-record electric motor for aircraft

Siemens researchers have developed a new type of electric motor that, with a weight of just 50 kilograms, delivers a continuous output of about 260 kilowatts – five times more than comparable drive systems. The motor has been specially designed for use in aircraft. Thanks to its record-setting power-to-weight ratio, larger aircraft with takeoff weights of up to two tons will now be able to use electric drives for the first time. To implement the world-record motor, Siemens' experts scrutinized all the components of previous motors and optimized them up to their technical limits. New simulation techniques and sophisticated lightweight construction enabled the drive system to achieve a unique weight-to-performance ratio of five kilowatts (kW) per kilogram (kg). The electric motors of comparable strength that are used in industrial applications deliver less than one kW per kg. The performance of the drive systems used in electric vehicles is about two kW per kg. Since the new motor delivers its record-setting performance at rotational speeds of just 2,500 revolutions per minute, it can drive propellers directly, without the use of a transmission.

http://www.siemens.com/press/en/feat...or.php?content[]=Corp

http://www.tu.no/industri/2015/04/02...d-rekordytelse
sail4fun is offline   Reply With Quote
Old 02-04-2015, 13:33   #2
semmern
ScanFlyer Gold
 
Join Date: May 2011
Posts: 1,499
Default Re: Siemens: World-record electric motor for aircraft

Ja, og så må man ha to tonn batterier for å få til en halvtimes flytid...eller noe sånt
semmern is offline   Reply With Quote
Old 15-05-2015, 09:11   #3
Frequent Traveller
Anthill kicker
 
Frequent Traveller's Avatar
 
Join Date: Feb 2012
Location: Toulouse, France
Posts: 1,280
Default Re: Siemens: World-record electric motor for aircraft

Man sparer iallefall vekten av brennstoff, Siemens pästär at gearboks er heller ikke nödvendig. Til gode (for et 5-pax fly ?) har man derved minst 800-1,200 kg, delta motorvekt innregnet ... Her trengs det en god O2-H2 til H2O e-celle. Samt noen avanserte batterier ? Videre trengs det nye piezo-materialer (som omgjör luft-friksjon til Volt) til vinge- og skrog-overflater ?
Frequent Traveller is offline   Reply With Quote
Old 15-05-2015, 12:50   #4
semmern
ScanFlyer Gold
 
Join Date: May 2011
Posts: 1,499
Default Re: Siemens: World-record electric motor for aircraft

Et 5-pax fly (Cessna 421 for å ta i litt, men vi kan også si en Seneca, som er et seksseters fly) vil med dagens teknologi kreve batterier som er myyye tyngre enn 8-1200 kg. Tar man bort begge motorene og fuel sparer man kanskje rundt 800 kg, men man vil trenge en anselig mengde batterier for å kunne fly like lenge som med fulle tanker. Det er enda lenge til brukbare batterifly - og da mener jeg brukbar som i lik eller bedre rekkevidde og performance som med dagens motorer.
semmern is offline   Reply With Quote
Old 15-05-2015, 14:13   #5
Frequent Traveller
Anthill kicker
 
Frequent Traveller's Avatar
 
Join Date: Feb 2012
Location: Toulouse, France
Posts: 1,280
Default Re: Siemens: World-record electric motor for aircraft

En e-celle (Pile ā Combustible) produserer ström til de nye elektriske motorene etter bruks-behov, la oss si e-cellen dimensjoneres til cruise-forhold, mens batteriene tar händ om sikkerheten og overbruk v/akselerasjoner osv, samme som for en Tesla - oder ?
Frequent Traveller is offline   Reply With Quote
Old 15-05-2015, 22:54   #6
Wahoo
ScanFlyer Molded
 
Join Date: Nov 2010
Posts: 2,769
Default Re: Siemens: World-record electric motor for aircraft

Går vel med en del kopper kaffe for å få ladet dette opp igjen på bakken vil jeg tro..
__________________
You can tell the size of a man by the size of things that bother him.
Wahoo is offline   Reply With Quote
Old 18-05-2015, 08:01   #7
Frequent Traveller
Anthill kicker
 
Frequent Traveller's Avatar
 
Join Date: Feb 2012
Location: Toulouse, France
Posts: 1,280
Default Re: Siemens: World-record electric motor for aircraft

Quote:
Originally Posted by Wahoo View Post
Går vel med en del kopper kaffe for å få ladet dette opp igjen på bakken vil jeg tro..
Jo, sikkert ... men det hjelper til ä redusere e-bruket när man tar nytte av piezoelektriske materialer spredt rundt om i flyets struktur for ä gjenvinne energi fra luftfriksjon og vibrasjoner som ellers gär tapt ... dette er nye materialer med spennende fremtid !

https://zedie.wordpress.com/2015/05/...imes-of-india/
Frequent Traveller is offline   Reply With Quote
Old 04-07-2016, 17:04   #8
sail4fun
ScanFlyer Mile High Club
 
sail4fun's Avatar
 
Join Date: Sep 2004
Location: NO
Posts: 10,014
Default Re: Siemens: World-record electric motor for aircraft

World-record electric motor makes first flight
Munich, 2016-Jul-04
Technical milestone: maiden flight of an electric aircraft with a 260-kilowatt power output
Siemens motor powers Extra 330LE aerobatic airplane in near silence
Technology to be integrated into development of hybrid-electric aircraft in cooperation with Airbus
http://www.siemens.com/press/en/feat...or.php?content[]=Corp
sail4fun is offline   Reply With Quote
Old 25-01-2017, 18:38   #9
sail4fun
ScanFlyer Mile High Club
 
sail4fun's Avatar
 
Join Date: Sep 2004
Location: NO
Posts: 10,014
Default Re: Siemens: World-record electric motor for aircraft

Quote:
“Faster, Higher, Stronger” – the official motto of the Olympic Games since 1924 – now also applies to the Extra 330LE aerobatics airplane. The plane is equipped with an electric drive system from Siemens that has a continuous power output of 260 kilowatts, weighs only 50 kilograms, and thus offers an unprecedented power-to-weight ratio. The aerobatics plane has now set a world record in ascent: the pilot reached an altitude of 3,000 meters in only four minutes and 22 seconds, beating the previous record by more than one minute.
https://www.siemens.com/innovation/e...de-flight.html
sail4fun is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Siemens, EADS and Diamond Aircraft sign MoU on Electric Propulsion System sail4fun General Aviation og sjøfly 0 26-08-2013 17:27
World's first serial hybrid electric aircraft to fly at Le Bourge sail4fun Flyforum 3 08-07-2011 11:10


All times are GMT +2. The time now is 20:28.


Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Copyright Foreningen Flyprat, Scanair og bidragsytere. Enkelte ikoner fra Famfamfam CC-BY.