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Empa team develops electrohydraulically actuated cam-less valve train; up to 20% fuel savings at low load

Green Car Congress

The valve train is the “respiratory organ” of combustion engines: it manages the aspiration of fresh air and the discharge of exhaust gases (gas exchange). The basic principle of the valve train—for both intake and exhaust side—is an asymmetric hydraulic pendulum, which can be described as a mass-spring-system. Image: Empa.

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Tesla formally wins final environmental approval to open Gigafactory Berlin

Teslarati

The facility also includes battery cell production, an operational wastewater treatment plant, a fire brigade equipment house, a high-bay warehouse, as well as laboratories and workshops,” the press release read. . There are 113 air pollution control requirements, which include respective chimney heights for each exhaust air stream.

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Volkswagen Group shows 3 hydrogen fuel cell concepts at LA Show: Audi A7 Sportback h-tron; Golf Sportwagen HyMotion; Passat HyMotion

Green Car Congress

Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at Audi, during a fuel cell technology workshop held at the LA show, and may be ready to talk about that technology by the end of next year. Because the exhaust system only has to handle water vapor, it is made of weight-saving plastic.

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Can This DIY Rocket Program Send an Astronaut to Space?

Cars That Think

The team recently manufactured a fuel tank for the Spica rocket [right] in their workshop. Until then, we'd been basing our designs on our existing capabilities—the tools in our workshop and the people on the project. While our boats were in international waters , Sweden ha s oversight of the airspace above that part of the Baltic Sea.)

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Two Audi TDI technology studies with electric biturbo, 48V electrical systems; both technologies to go into series production

Green Car Congress

Audi has built two technology studies with the “electric biturbo” technology it is developing ( earlier post ): the Audi A6 TDI concept is equipped with a new 3.0 a single turbo with supplementary electric compressor), while the Audi RS 5 TDI concept with a 3.0 Drivetrain of the RS 5 TDI concept with biturbo.

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