Thielert Centurion

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Thielert
Thielert Centurion 4.0

Thielert Centurion 4.0
Centurion
Production period: unknown
Manufacturer: Thielert
Developing country: GermanyGermany Germany
Working principle: diesel
Motor design: V engine
Cylinder: 4-8
Mixture preparation: Injector
Engine charging: turbocharger
Cooling system: Water cooling
Previous model: none
Successor: none

Thielert Centurion is a range of aircraft diesel engines for general aviation . The engines were originally built by the German company Thielert , which was bought by Tecnify Motors, a subsidiary of the Chinese state-owned Aviation Industry Corporation of China . Since Continental Motors also belongs to the Chinese company, the engines are sold by Continental.

construction

All Centurion engines are water-cooled and turbo-charged and equipped with a full-authority digital engine control system ( FADEC ) that enables single-lever operation. This simplifies drive management for the pilot. It also increases reliability as it prevents improper operation of the motors. The engines can burn both kerosene and diesel fuel . High compression combined with digitally controlled fuel injection offers the same advantages as in automobile construction.

All engines of the Centurion series are operated with a controllable pitch propeller , so that the engine can always work at the optimal speed. Since the optimal speed is too high for a propeller, it is driven by a reduction gear. The combination of controllable pitch propeller and gearbox enables the propeller blade tips to rotate at a speed that is ten to fifteen percent lower than that of comparable, conventional AvGas- powered aircraft engines, which reduces propeller noise.

In addition, the high compression leads to more efficient combustion, which, in conjunction with the higher continuous speed of the Centurion compared to conventional piston engines, allows higher performance with a smaller displacement .

A Centurion engine with propeller control, reduction gear, turbocharger and FADEC weighs considerably more than competing conventional engines from Continental or Lycoming , but the weight disadvantage is offset by the low fuel consumption of the Centurion engines. Still, they are much more complex, although they do not require an ignition or spark plugs .

variants

Centurion 1.7 in a Diamond DA42
Centurion 1.7 - Continental CD-135 (TAE 125-01)
The first engine of the series with a displacement of 1689 cm³ and an output of 135  PS (99  kW ) is based on the Mercedes-Benz OM 668 from the A-Class A 170 CDI (W168) with a bore of 80 mm and a stroke of 84 mm. The engine develops more power than a Lycoming O-320 at over 4,000 ft (approx. 1,220 m) altitude , can maintain an output of 125 PS (92 kW) up to FL 120 and burns 17.5 liters of fuel per hour when cruising at FL 175 with an output of 97 PS (71 kW).
Over 1500 units of this model were built before it was replaced by the Centurion 2.0 in 2006. However, problems with construction, service and customer care caused widespread customer dissatisfaction, whereupon Diamond asked Austro Engine to develop alternatives .
The engines were later marketed by Continental under the designation CD-135. They were produced in Sankt Egidien . The final assembly for the US market took place in Fairhope in the US state of Alabama from 2015 .
Centurion 2.0
Centurion 2.0 (TAE 125-02-99)
Introduced at the end of 2006. The main difference is a new engine block of the Mercedes-Benz OM640 from the Mercedes-Benz A 200 CDI ( W169 ) with a displacement of 1991 cm³ (bore 83 mm, stroke 92 mm). Further improvements include a more compact FADEC, a lighter gear housing, connections for glass cockpits and new software that enables the FADEC to be programmed on site. The dimensions of the Centurion 2.0 are similar to those of the 1.7 and the mountings are compatible, so that a Centurion 1.7 can be exchanged for a 2.0. Like the 1.7, the engine has an output of 135 PS (99 kW), but is type-approved by both EASA and FAA up to 155 PS (114 kW) . By April 2008, the engine had had a total of over 1,000,000 flight hours without any mechanical failure.
Centurion 2.0 S (TAE 125-02-114)
This four-cylinder turbodiesel with common rail direct injection and redundant FADEC delivers 155 hp (114 kW) and thus considerably more power than the Centurion 2.0 with 135 hp (99 kW) for the same mass.
Centurion 3.0
Approved on June 20, 2017 by Technify Motors , V6 diesel engine with 2987 cm³ with common rail direct injection, turbocharger, reduction gear in the ratio 1: 1.66 and electronic engine control unit . 980 mm long, 700 mm high and 790 mm wide, 221 kW (300 HP) for 5 minutes, 202 kW (275 HP) continuous output, each at 3880 min −1 (propeller speed 2340 min −1 ).
Centurion 3.2
This engine was announced at the International Aerospace Exhibition in Berlin in 2006 and, with an output of 230 PS (169 kW), should close the gap between the 2.0 and the 4.0. Didn't go into series production.
Centurion 4.0
Centurion 4.0
V8 engine with four valves per cylinder; originally with two turbochargers, later with a single, larger turbocharger and an output of 350 hp (257 kW); Developed from the Mercedes-Benz OM629 as a replacement for conventional petrol engines in this performance class
Continental CD-155
Version of the Centurion 2.0S from Continental with 155 PS (114 kW).
Continental CD-300
Version of the three-liter six-cylinder diesel engine Centurion 3.0 with an output of 310 hp (228 kW) at 2,300 min -1 . The CD-300 will replace the Safran / SMA diesel engine in the Diamond DA50 from the third quarter of 2020 after the combination made its maiden flight on March 22, 2019 with a travel consumption of 34.81 liters per hour.

use

Centurion 1.7

Centurion 2.0

Centurion 3.2

  • Cessna 182 (with supplementary type certification)

Centurion 4.0

Continental CD-155

Web links

Commons : Thielert aircraft engines  - collection of images, videos and audio files

Individual evidence

  1. ↑ Little diesel big fuel savings . In: AOPA Pilot . February 2015, p. 70 (English).
  2. ↑ Aero TV: Doing It Diesel Style - Glasair's New Diesel Offering. (flash) Aero News Network, August 29, 2014, accessed January 24, 2020 .
  3. ^ A b Development of the CENTURION Jet Fuel Aircraft Enginesat TAE. (PDF; 1.4 MB) In: dglr.de. German Aerospace Society , April 25, 2003, accessed on January 24, 2020 (English).
  4. ^ Paul Bertorelli: Thielert's Flawed Economics (And Why the Company Knows It). In: AVweb. Aviation Publishing Group, May 29, 2008, accessed January 24, 2020 .
  5. ↑ Elaine Kauh: Continental Motors Group To Assemble Diesel Kits In US In: AVweb. Aviation Publishing Group, April 16, 2015, accessed January 24, 2020 .
  6. ↑ Featured Engine: Centurion 2.0S. In: avbuyer.com. GA Buyer Europe Magazine, December 2009, accessed August 27, 2013 .
  7. ↑ Centurion 2.0s - Jet Fuel Piston Engine with 155 hp. In: Centurion Engines. Continental Aerospace Technologies GmbH, accessed on August 28, 2013 (English).
  8. ↑ Type-certificate data sheet No. E.104. (PDF) (No longer available online.) In: easa.europa.eu. European Aviation Safety Agency , December 2, 2019, formerly original ; accessed on January 27, 2020 (English).  ( Page no longer available , search in web archives )@1@ 2Template: Dead Link / www.easa.europa.eu
  9. ↑ Thielert launches third jet fuel piston engine - ILA show report. In: FlightGlobal. DVV Media Group, May 23, 2006, accessed on January 27, 2020 (English).
  10. ↑ Russ Niles: Textron Introduces Diesel 172. In: AVweb. Aviation Publishing Group, July 28, 2014, accessed January 27, 2020 .
  11. ↑ Continental Unveils V-6 Diesel - Rebranding Efforts collective work = Sport Aviation . September 2014, p. 16 (English).
  12. ↑ Kate Sarsfield: Diamond selects Continental CD-300 to power DA50. In: FlightGlobal. DVV Media Group, April 15, 2019, accessed on January 27, 2020 (English).
  13. ↑ a b Supplemental Type Certificate SA01303WI. Federal Aviation Administration (English).
  14. ^ STC for Piper PA. Centurion Engines, accessed August 27, 2013 .
  15. ↑ Tony Osborne: Airbus Preparing To Fly VSR700 Prototype In 2018 . In: Aviation Week & Space Technology , January 24, 2018.