Abstract: 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, ...

GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for ...

S&P Global Mobility forecasts U.S. auto sales will fall 2.5% year-over-year in 2026 to 15.89 million units. "An already ...

An Air India Boeing 777-300ER aircraft (VT-ALS) operating flight AIC 887 from Delhi to Mumbai, returned to Delhi on Monday (December 22) after facing a “serious glitch.” The flight returned shortly ...

This video follows Project Frankfurt as we inspect the engine of a BMW E92 M3 to determine whether it can be repaired. We examine symptoms, check key components, and explain the diagnostic process ...