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GPC Y ASOCIADOS S.A.

Veléz Sarsfield 201640 Martinez

Buenos Aires

Tel.: +54 (9) 11 5993 8719

info@gpcasoc.com.ar

Horne Technologies cc

PO Box 536

Betty's Bay, 7141

Tel.: +27 (0)76 563 2084

info@hornet.cc

www.hornetechnologies.co.za

FAULHABER MINIMOTOR SA

Zona Artigianale 8, Madonna del Piano

6980 Croglio

Tel.: +41 (0)91 611 31 00

info@faulhaber.ch

Edificio di FAULHABER MICROMO LLC, Wien, Austria

FAULHABER MICROMO LLC

14881 Evergreen Avenue

Clearwater, FL 33762-3008

Tel.: +1 (727) 572 0131

marketing@micromo.com

www.faulhaberUSA.com

NRC Engineering & Precision Drives Co., Ltd.

17F., No. 890, Jingguo Rd., Luzhu Dist.

Taoyuan City 33858, Taiwan, R.O.C.

Tel.: +886 (0) 3-316-1838

info@nrc.com.tw

www.nrc-precidrives.com

EDEL Teknoloji Sistemleri Sanayi ve Ticaret Ltd.Şti

Folkart TowersAdalet Mah.Manas Blv. No:47B/2809

35530 Bayraklı/İzmir

Tel.: + 90 232 215 08 91

info@edelteknoloji.com

www.edelteknoloji.com

FAULHABER Asia Pacific Pte Ltd.

Blk 67 Ubi Road 1, #06-07 Oxley Bizhub

Singapore 408730

Tel.: +65 6562 8270

info@faulhaber.com.sg

Compotech Provider AP

Gustavslundsvägen 145, 4 tr

167 51 Bromma

Tel.: +46 (0) 8 441 58 00

info@compotech.se

www.compotech.se

MICROPRIVOD Ltd.

56 (bldg. 32), Shosse Enthusiastov

111123 Moscow

Tel.: +7 495 2214 052

info@microprivod.ru

www.microprivod.ru

FAULHABER Polska sp. z o.o.

Ul. Górki 7

60-204 Poznan

Tel.: +48 61 278 72 53

info@faulhaber.pl

Staubo Elektro-Maskin a.s.

Bjørnerudveien 12C

1266 Oslo

Tel.: +47 22 75 35 00

post@staubo.no

www.staubo.no

FAULHABER Malaysia Sdn Bhd

1A-2-01 & 02 · One Precinct · Lengkok Mayang Pasir

11950 Bayan Baru · Penang · Malaysia

Tel.: +60 4 619 2570

info@faulhaber.my

Swiss Amiet Co., Ltd.

W-903, SK V1 Center, 11 Dangsan-ro 41-g

Yeongdeungpo-gu,07217, Seoul

Tel.: +82 (0) 2 783 4774

info@swissamiet.com

www.swissamiet.com

Shinkoh Electronics Co., Ltd.

Tokyo Sales Office, Motor Sales Division8F, REID-C OMORI building, 6-20-8

Minami-oi, Shinagawa-ku, Tokyo 140-0013

Tel.: +81 (0) 3 6404 1003

motor-info@shinkoh-elecs.co.jp

www.shinkoh-faulhaber.jp

FAULHABER Italia S.r.l.

Via Cavour 2

22074 Lomazzo CO

Tel.: +39 0236714708

info@faulhaber-italia.it

Inteltek Automation JV

S.No. 100/5, Ambegaon

Pune - 411046

Tel.: +91 (0) 20 39392150

info@inteltekindia.com

www.inteltekindia.com

Lewenstein Technologies Ltd.

1 Ha'arava St. Givat Shmuel

5400804 Israel

Tel.: +972 3 9780 800

info@l-tech.co.il

www.l-tech.co.il

Electro Mechanical Systems Ltd.

Eros House, Calleva Industrial Park, Aldermaston

Reading, RG7 8LN

Tel.: +44 (0) 118 9817 391

info@ems-ltd.com

www.ems-limited.co.uk

FAULHABER France SAS

Parc d’activités du Pas du Lac2, Rue Michaël Faraday

78180 Montigny-le-Bretonneux

Tel.: +33 (0) 1 30 80 45 00

info@faulhaber-france.fr

www.faulhaber.com

ELMEQ Motor

Passeig Ferrocarrils Catalans 178

Cornellà de Llobregat 08940 (Barcelona)

Tel.: +34 93 422 70 33

marketing@elmeq.es

www.elmeq.es

MOVETEC OY

Suokalliontie 9

01740 Vantaa

Tel.: +358 (0) 9 5259 230

info@movetec.fi

www.movetec.fi

Routech s.r.o.

Dr. Milady Horákové 185/66

460 06 Liberec

Tel.: +420 489 202 971

info@routech.cz

www.routech.cz

Compower ApS

Marielundvej 29

2730 Herlev

Tel.: +45 (0) 44 92 66 20

info@compower.dk

www.compower.dk

Marte Científica e Instrumentação Industrial Ltda

Av Fco Andrade Ribeiro 430

37540-000 Santa Rita do Sapucai, MG

Tel.: +55 (11) 3411 4500

motores@marte.com.br

www.marte.com.br

FAULHABER Drive System Technology (Taicang) Co., Ltd.

Eastern Block, Incubator Building, No. 6 Beijing Road West

Taicang 215400, Jiangsu Province

Tel.: +86 (0) 512 5337 2626

info@faulhaber.cn

FAULHABER Benelux B.V.

High Tech Campus 9

5656 AE Eindhoven

Tel.: +31 (0) 40 85155-40

info@faulhaber.nl

FAULHABER Benelux B.V.

High Tech Campus 9

5656 AE Eindhoven

Tel.: +31 (0) 40 85155-40

info@faulhaber.be

FAULHABER Austria GmbH

Modecenterstraße 22/C89

1030 Wien

Tel.: +43 1 7963149-0

info@faulhaber-austria.at

ERNTEC Pty. Ltd.

15 Koornang Road

Scoresby, VIC 3179

Tel.: +61 (0) 3 9756 4000

sales@erntec.com.au

www.erntec.net

Headquarter

DR. FRITZ FAULHABER GMBH & CO. KG

Daimlerstr. 23

71101 Schönaich

Tel.: +49 7031 638 0

Fax: +49 7031 638 100

info@faulhaber.de

www.faulhaber.com

Jan-Christopher Mohr

Area Sales Manager

Tel.: +49 (7031) 638 158

jan-christopher.mohr@faulhaber.de

Daniel Brönnimann

Area Sales Manager

Tel.: +41 (0) 79 570 0814

daniel.broennimann@faulhaber.ch

Rolf Leitner

Regional Sales Manager

Tel.: +41 (0) 79 422 3348

rolf.leitner@faulhaber.ch

Michael Schütte

Area Sales Manager

Tel.: +49 (7031) 638 456

michael.schuette@faulhaber.de

Beijing Office

East 10H3 Wu Mart Huike Mansion Building, No. 158 W. 4th Ring Road North

Haidian District, Beijing 100097

Tel.: +86 (0)10 5335 9353

info@faulhaber.cn

Guangzhou Office

Room 1415, No. 5 Fuchang Road

Haizhu District, Guangzhou, 510240, Guangdong Province

Tel.: +86 (0) 20 3424 8332

Fax: +86 (0) 20 3424 8332

info@faulhaber.cn

Xi‘an Office

Room A-509, No. 318 Yanta Road South

Qujiang New District, Xi’an 710061, Shaanxi Province

Tel.: +86 (0) 29 8521 2778

Fax: +86 (0) 29 8521 2778

info@faulhaber.cn

Hong Kong Office

Unit 4, 19/F, Ricky Centre, 36 Chong Yip Street

Kwun Tong, Kowloon

Tel.: +852 3520 2078

Fax: +852 3914 7452

info@faulhaber.cn

Motori brushless per Aerospazial valvola di carburante header

One way to control cost is by optimizing fuel burned during launch to minimize waste. A specially developed fuel-trim valve guarantees optimum performance in this situation. It is driven by robust and reliable servomotors made by FAULHABER.

Modern launch vehicles use the rocket fuel RP-1, a highly refined type of kerosene, which must be mixed with oxygen for combustion. On the launch vehicle, 4-in pipes run from tanks of RP-1 and liquid oxygen (LOX) to combine prior to entering the combustion chamber.

The combustion chemistry of RP-1 is forgiving. The fuel won’t burn without oxygen, but as long as oxygen is pr­e­s­­ent, the two do not necessarily need to be combined in a precise ratio. The pr­o­b­lem is, however, that if the ratio of LOX to RP-1 varies from the optimum mix, ­either the oxygen will run out before the fuel or the fuel before the oxygen. However, as soon as the combustion ends, the remainder becomes unwanted ballast. To ensure this doesn’t happen, ­the fuel-trim valve adjusts the mixture in real time.

The fuel-trim device consists of a servo-motor-controlled butterfly valve. To achieve the proper speed and torque, the design incorporates a planetary gearbox for a roughly 151:1 reduction ratio, plus additional gearing internal ­to the unit. The team qualified the­ components with a significant safety margin to protect against common-mode failure. The shaft of the motor inter­faces with the valve directly to make ­fine adjustments.

Motori brushless per Aerospazial valvola di carburante razzo
Motori brushless per Aerospazial valvola di carburante motore
[Translate to Italian:] The fuel-trim valve is located directly above the engine where the pipes of RP-1 fuel and liquid oxygen converge, to ensure a consistent drainage of both tanks.

Extreme operating conditions

Accuracy aside, the characteristics most applications require from servomotors tend to be high torque, high speed or small in size. In the case of the fuel-trim valve,­ the chief motor requirement was simple: They had to survive launch. Extreme shocks and vibrations occur in particular during the first stage. During the approx. 3 minutes of combustion of­ a rocket stage, the engine produces a thrust of about 440,000 kN, causing immense forces to act on the fuel-trim valve in the direct vicinity.

When the engineering team set out to qualify components for the fuel-trim valve, vibration testing caused motor after motor to fail. To minimize points of failure, they switched from brushed to brushless motors. The most important criterion in this context was: Can the motor survive these operating conditions? That meant that the gearbox had to be able to withstand the load, the Hall effect sensors had to remain undamaged, in short – no failure could be allowed to happen in this extreme operating environment. Searching for a manufacturer whose motors survive these ordeals, the engineers came across FAULHABER.

Motori brushless per Aerospazial valvola di carburante prima fase
[Translate to Italian:] The first rocket stage includes five engines, each of which is equipped with a fuel-trim valve operated by a servomotor that ensures uniform fuel combustion.

Rocket engines do not only produce vibrations, of course, but also heat. How­ever, the heat management – contrary to what one might expect – doesn't pose any particular challenges in this application. Much of the heat is radiated ­and is reflected away. Interestingly, the ­thermal issue he does mention is low, ­not high temperatures. For exam­ple, ­during the operation of the second stage, the engines may fire only briefly. The vehicle can then coast for as long as ­45 minutes before a second burn phase takes place. By this point, the rocket is outside of the atmosphere, where temperatures can be quite low.
To control cost and production timelines, the philosophy is to try to work with stock components whenever possible. No extra effort on FAULHABER's part was required to increase robustness for the application - the developer team simply ordered standard products.
The engineers also used FAULHABER's express prototyping program and thus were able to obtain the required samples in very short time frames.

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