But aside from sealing, poppet valves don’t offer many advantages. Still, engineers kept pushing: better springs, VVT, and all kinds of breathing tricks: variable intake manifolds, forced induction, ...

If the Avadi valve works as a parameter to predict that, there seems to be reason for hope. The previous one suffered from high temperatures and sealing issues (as the most popular rotary engines ...

Lifter tick in your vehicle stems from issues with the engine's mechanical or hydraulic lifters. Here's what causes this sound and how you can fix it.

Rotary valve systems are not a new concept, having been used extensively in the 1970s in 2-stroke engine configurations. They were later dropped in favor of reed valves.

Timing gears interlinking the rotors (if needed) may require grease, but the simple ring valves for throttling and partial-turn rotary EGR valve require no pressure lubrication.

Unlike piston engines, Rotary engines don’t require valves to run. Here’s how rotary engines work and why some designs have incorporated valves.

Shri Balaji Valve Components manufactures forged products in addition to valve components for butterfly, ball, and other types of valves. The company manufactures a wide range of valve parts ...

Based on 3D printing technology, a cylinder head assembly of rotary valve engine was developed and trial- produced in this paper. The structure of the assembly, the lubrication system, sealing system ...

With Vaztec's new rotary valve, we may have found a way to once more improve the fundamentals of internal combustion engine design.