Rotary valves are one alternative. A spinning barrel with ports replaces the entire valve train. No springs, no float, fewer moving parts, smaller size, less weight, more efficiency, higher rpm.

Explore the captivating process of building a one-of-a-kind rotary valve engine, boasting cutting-edge intake and exhaust systems. Experience the hurdles and victories throughout the project ...

Rob Dahm, notorious rotary-powered car builder, has firmly jumped into the deep end of the pool with his latest project: The world's only 15.7-liter, tri-turbo Y12 rotary engine. If that doesn't ...

Summary. An active exhaust system adjusts exhaust flow and sound to enhance vehicle performance and driver comfort. By using electronically controlled valves to manage exhaust flow dynamically, the ...

That means it has lots of energy and is still expanding even as it whooshes out the exhaust valves. In naturally aspirated cars, it just blows out the tailpipe—what a waste.

I love weird engines—give me a rotary, a turbine, or, hell, even a flat-eight and I’ll be happy. That’s why I was so excited when I heard that INNengine of Granada, Spain had produced a ...

PACCAR has patented a method for starting a vehicle’s engine that involves rotating the crankshaft while keeping the exhaust valves of the combustion chambers open before fuel injection.

The Wild Tomahawk Internal Combustion Turbine Engine Could Dramatically Chop Fuel Use and Emissions. Small, ultra-fast, primary and “afterburner” secondary combustion events promise to deliver ...

Servicing Cessna 172 Stuck Exhaust Valves A rough-running engine means it’s time to pop valve covers. ... 2006 Cirrus SR22 GTS Turbo Normalized with Avidyne Flight Deck.

Turbo roundabout comes to South Bay, bringing mixed reactions from commuters Leading to a mix of confusion and pleasant surprise, the first-in-the-state roundabout is finished ...