L'Orange
Woodward L'Orange GmbH is a German engineering manufacturer specializing in fuel-injection systems and components for large diesel engines.
Last updated August 31, 2026
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Overview
Woodward L'Orange GmbH is a Stuttgart-based German engineering and manufacturing company whose products are used in large diesel engines. The business supplies engine builders and industrial customers rather than selling primarily to consumers. Its principal field is the design and production of fuel-injection equipment, including injection systems, nozzles, pumps, valves, and related precision components for demanding applications such as marine propulsion, locomotive engines, power generation, and other heavy-duty engine platforms. The company traces its origins to 9 September 1933, when Rudolf L'Orange and his brother Harro established Gebrüder L'Orange Motorzubehör GmbH in Stuttgart. The founders initially manufactured precision parts for injection pumps used in aircraft and marine engines, including stamps, cylinders, needles, and needle guides. The company developed from the technical legacy of Rudolf and Harro's father, Prosper L'Orange, whose inventions and manufacturing rights had previously been transferred to Robert Bosch. L'Orange expanded during the pre-war period by establishing a Hamburg subsidiary to supply naval customers and by opening or operating facilities in Dresden, Niederschöneweide near Berlin, and Dębno in Pomerania. During the Second World War, the Berlin operation was moved to Glatten in the Black Forest to avoid destruction. After 1945, the business rebuilt in cooperation with engine manufacturer Karl Maybach. L'Orange's direct-current injection system was used in Maybach high-speed diesel engines for locomotives and ships, helping restore the company's position in the post-war market. Around 1950, L'Orange and Maybach developed a pump-nozzle system that became important for large diesel engines. The technology helped drive further expansion, including operations in Munich, Hamburg, and Stuttgart-Zuffenhausen. The company also became associated with innovations such as the two-quantity nozzle, designed for continuous atomization and improved fuel delivery. Ownership changed several times during the late twentieth and early twenty-first centuries. ITT Automotive acquired the L'Orange family's shares in 1979, and the business was sold to MTU München in 1985. It later became part of MTU Friedrichshafen, was incorporated into the Tognum group in 2006, and operated within Rolls-Royce Power Systems after the group's 2014 rebranding. In April 2018, Rolls-Royce Power Systems sold L'Orange to Woodward, a United States-based manufacturer of energy-control and engine-control systems. The company subsequently operated as Woodward L'Orange GmbH. Woodward L'Orange maintains its management, development, and sales headquarters in Stuttgart-Zuffenhausen. Its German manufacturing footprint includes the principal plant in Glatten and an injection-nozzle facility in Wolfratshausen, with service activity in Rellingen near Hamburg. In China, the company operates subsidiaries and facilities in Suzhou and Ningbo. Ningbo became the company's first production site outside Germany when it opened in 2014. Through Woodward, L'Orange remains positioned as a specialist supplier of precision fuel-injection technology for large engines, supporting customers in marine, power-generation, locomotive, and related heavy-duty sectors.
History
L'Orange was founded in Stuttgart on 9 September 1933 by brothers Rudolf and Harro L'Orange as Gebrüder L'Orange Motorzubehör GmbH. The young company manufactured precision components for injection pumps, initially serving aircraft and marine-engine applications. Its early product range included stamps, cylinders, needles, and needle guides. The business was rooted in the technical work of the L'Orange family: Rudolf and Harro's father, Prosper L'Orange, had developed inventions in fuel-injection technology and had transferred associated rights and manufacturing arrangements to Robert Bosch. The company broadened its industrial and geographic presence before the Second World War. A Hamburg subsidiary, Norddeutsche L'Orange GmbH Hamburg, was established to support naval supply requirements. Rudolf L'Orange also developed new injection concepts, including a two-quantity nozzle intended to support continuous atomization. The company operated additional sites in Dresden, Niederschöneweide near Berlin, and Dębno in Pomerania. The Berlin operation was relocated to Glatten in the Black Forest during the war in an effort to protect production capacity. After the war, L'Orange rebuilt its business with the assistance of Karl Maybach. Maybach used the L'Orange direct-current injection system in high-speed, lightweight diesel engines for locomotives and ships. Around 1950, L'Orange and Maybach developed a pump-nozzle system that became widely important in large diesel engines. The resulting commercial success supported the opening or expansion of locations in Munich, Hamburg, and Stuttgart-Zuffenhausen. Rudolf L'Orange died in 1958, after which his widow continued operating the company until 1978. The ownership structure changed in 1979, when ITT Automotive acquired all shares held by the L'Orange family. MTU München acquired the business in 1985. A second production plant was inaugurated in Wolfratshausen in 1989, strengthening the company's manufacturing base in Germany. In 1995, L'Orange was sold to MTU Friedrichshafen. It became part of the Tognum group in 2006, and that group operated as Rolls-Royce Power Systems from 2014. International expansion accelerated in the 2000s and 2010s. L'Orange Fuel Injection Trading (Suzhou) Co., Ltd. was founded in China in 2009. In 2014, the company established a production facility in Ningbo, its first manufacturing site outside Germany. The business also developed service capabilities in China while retaining engineering, management, and core production operations in Germany. In April 2018, Rolls-Royce Power Systems sold L'Orange to Woodward in the United States. The company became part of Woodward's portfolio and adopted the Woodward L'Orange GmbH identity. Its current footprint consists of four locations in Germany and two Chinese subsidiaries or operating sites. Stuttgart-Zuffenhausen serves as the management, development, and sales center; Glatten is the main production plant; Wolfratshausen manufactures injection nozzles; Rellingen provides service support; and Suzhou and Ningbo support the company's Chinese operations. The business continues to supply fuel-injection technology to manufacturers and operators of large diesel engines in marine, locomotive, power-generation, and related heavy-duty applications.
- 2018
Woodward acquisition
[1]Woodward acquired L'Orange from Rolls-Royce Power Systems in April 2018.
- 2014
Ningbo production site established
[1]L'Orange opened a production facility in Ningbo, the company's first manufacturing location outside Germany.
- 2009
Chinese trading subsidiary established
[1]L'Orange Fuel Injection Trading (Suzhou) Co., Ltd. was founded in China.
- 2006
Integration into Tognum
[1]L'Orange was incorporated into the Tognum group.
- 1995
Sale to MTU Friedrichshafen
[1]L'Orange became part of MTU Friedrichshafen.
- 1989
Wolfratshausen plant opened
[1]L'Orange inaugurated a second production facility in Wolfratshausen, Germany.
- 1985
Sale to MTU München
[1]The company was sold by ITT Automotive to MTU München.
- 1979
ITT Automotive acquisition
[1]ITT Automotive acquired the L'Orange family's entire shareholding.
- 1958
Death of Rudolf L'Orange
[1]Following Rudolf L'Orange's death, his widow continued to operate the business until 1978.
- 1950
Pump-nozzle system developed
[1]L'Orange and Maybach developed a pump-nozzle system that became important for large diesel engines.
Products and positioning
A specialist business-to-business engineering supplier focused on precision fuel-injection technology for large diesel engines and other heavy-duty power systems.
Fuel-injection equipment
Large-engine fuel-injection systems
L'Orange designs and manufactures fuel-injection systems for large diesel engines. These systems regulate and deliver fuel under demanding operating conditions and are supplied primarily to engine manufacturers serving marine propulsion, locomotives, power generation, and other heavy-duty applications.
Diesel injection systems
Common-rail systems
The company developed and produced the first common-rail system for large diesel engines. Common-rail architecture separates fuel pressurization from the timing and quantity of injection, enabling more flexible control of combustion in large-engine applications.
Diesel injection systems · 1950
Pump-nozzle systems
Developed with Karl Maybach around 1950, the pump-nozzle system combines fuel pumping and injection functions at the cylinder. It became an important technology for large diesel engines and is part of the company's historical product heritage.
Engine components
Injection nozzles and precision components
L'Orange produces injection nozzles and other precision components used in fuel systems. The Wolfratshausen plant is associated with nozzle manufacturing, while the Glatten facility manufactures the broader product portfolio.
Brand decisions
2018
Woodward acquires L'OrangeM&ABackground
L'Orange had operated within the Rolls-Royce Power Systems group after its earlier ownership through MTU and Tognum. Rolls-Royce Power Systems sold the business to Woodward in April 2018.
Action taken
Woodward added L'Orange to its portfolio and continued the business under the Woodward L'Orange GmbH identity.
Aftermath
L'Orange became part of Woodward while retaining its German engineering and manufacturing base and its Chinese operations.
Sources2 sources
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