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Founded Year



Series D | Dead

Total Raised


About EcoMotors

EcoMotors is commercializing the opoc (Opposed-Piston Opposed-Cylinder) engine for use in GenSets, commercial vehicles, cars, light trucks, aerospace, marine, agriculture, auxiliary power units, etc. This design creates an internal combustion engine family architecture that will run on a number of different fuels, including gasoline, diesel and ethanol. The opoc's opposed piston-opposed cylinder direct gas exchange operation provides the emissions benefit of 4-cycle engines, the simplicity benefits of 2-cycle engines, the power density of the less well known opposed piston engine, and the developments in computer and thermodynamics all tied together in a new engine architecture. It comprises two opposing cylinders per module, with a crankshaft between them, each cylinder has two pistons moving in opposite directions. This design configuration eliminates the cylinder-head and valve-train components of conventional engines, offering an efficient, compact and simple core engine structure. The result is an engine family that is lighter, more efficient and economical, with lower exhaust emissions.

Headquarters Location

17000 Federal Drive Suite 200

Allen Park, Michigan, 48101,

United States


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EcoMotors Patents

EcoMotors has filed 50 patents.

patents chart

Application Date

Grant Date


Related Topics




Engine technology, Mechanical engineering, Turbochargers, Piping, Fluid dynamics


Application Date


Grant Date



Related Topics

Engine technology, Mechanical engineering, Turbochargers, Piping, Fluid dynamics



Latest EcoMotors News

Zhongding To Invest $200M In EcoMotors

Oct 23, 2015

Tweet Allen Park, Michigan-based next generation internal combustion engine maker EcoMotors has secured an undisclosed series D round of financing led by Chinese auto parts maker Anhui Zhongding Holding (Group) Co., Ltd., says a company announcement . Even though the total amount of EcoMotors' funding round is not disclosed, the company says that Zhongding has agreed to invest more than US$200 million in total. Zhongding has also agreed to finance and construct the first plant in Anhui province to manufacture EcoMotors' engines, which aims to be more efficient, cost effective, lightweight than traditional gas engines. "We believe that this game-changing technology will help solve some of the environmental challenges we face today by offering a more efficient and lower cost engine," says Xia Dinghu, chairman of Zhongding Group. The new plant will have a capacity to produce an estimated 100,000 engines per year. Zhongding plans to supply EcoMotors' engines to power generation sets, as well as off-road and commercial vehicles. Zhongding is currently EcoMotors' largest customer. The two have signed a product development agreement in 2010, as well as a license agreement in 2013 to develop and produce EcoMotors' engines in China. EcoMotors' previous backers include Bill Gates, Khosla Ventures and Braemar Energy Ventures. EcoMotors' engines will deliver the same power levels as conventional engines but are smaller, lighter, and more cost effective, with the potential to deliver over 15% improvement in fuel economy. [Please send your news, tips, and feedback to]

EcoMotors Frequently Asked Questions (FAQ)

  • When was EcoMotors founded?

    EcoMotors was founded in 2008.

  • Where is EcoMotors's headquarters?

    EcoMotors's headquarters is located at 17000 Federal Drive, Allen Park.

  • What is EcoMotors's latest funding round?

    EcoMotors's latest funding round is Series D.

  • How much did EcoMotors raise?

    EcoMotors raised a total of $61.25M.

  • Who are the investors of EcoMotors?

    Investors of EcoMotors include Zhongding Group, Khosla Ventures, Bill Gates, Braemar Energy Ventures and Global Optima.

  • Who are EcoMotors's competitors?

    Competitors of EcoMotors include Achates Power and 1 more.

Compare EcoMotors to Competitors

Transonic Combustion

Transonic Combustion is a high tech startup company commercializing a fuel injection technology and related components for vehicle manufacturers worldwide. The company has demonstrated a cost competitive solution providing increased engine efficiency of up to 25% through use of supercritical fuel injection.

Achates Power Logo
Achates Power

Achates Power has developed an internal combustion engine that the company says increases fuel efficiency, reduces greenhouse gas emissions and does so at lower cost. Specifically, the company is a developer of opposed-piston, two-stroke, compression ignition engines for use in commercial and passenger vehicles.

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