Four-stroke engines, which make up 99% of engines on the road, need to breathe: air in during intake, sealed tight during compression and combustion, then air out on exhaust. So we need a system that ...

The last update from the company was that it added liquid cooling to the prototype to test a new kind of rotary valve. When the production valve is fully developed, the company should go back to ...

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their ...

NASA Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109, United States ...

Many of you have seen the process of making this rotary valve engine with different intake and exhaust system and how I tried to start it. If not, then let's watch the previous video first ...

One of the distinguishing features is that they don't need valves to operate. That's to say, the Wankel rotary engine design doesn't have valves — but quite a few rotary engine designs have ...

ACS Valves' MD Series of rotary feeder valves are material metering valves. The MD Series of rotary feeders is constructed with an 8-vane rotary valve and an outboard bearing design for ...

Bicuspid aortic valve (BAV) is a congenital heart condition. It occurs when the aortic valve has two cusps instead of the three. BAV can lead to serious complications. Several treatment options ...

The redline was set at 6,000 rpm, but the engine could actually go much higher as it doesn't contend with valve float or the damage from pistons being jerked back and forth too fast. A rotary ...