It's appropriate, we think, that a camshaft has lobes, since this relatively simple device is so often called the brains of an engine. And indeed, a camshaft does direct several engine functions ...

We’re not discussing the finer points of lobe ramp angles with this story, but simply explaining some of the basic terms and general theories of camshaft design and operation. It’s a back-to ...

This diagram shows the major cam events through one full cylinder cycle (two crank revolutions or 720 degrees), beginning at TDC firing. The exhaust lobe and valvetrain is closer to the front, and ...

Over the years, we tend to accumulate a lot of parts for our cars, and often these parts sit forgotten on the shelves of our shops until one day we clean up, wondering what the parts all go to. Some ...

Back in the days before variable valve timing (VVT) and computer-controlled engine tuning, one of the best ways to improve stock engine performance was to install an aftermarket camshaft, a process ...

Variable timing Ideally, cam lobes press on the valves at times that vary with engine rpm and load, something hard to imagine in a fixed, machined camshaft shape.

This is a preview. Log in through your library . Abstract With the drive to reduce emissions and improve fuel economy, fuel injection pressures have increased. This has increased Hertzian stresses on ...

Advancing single and double-wheel technology one step further, the Zeus grinding machine incorporates four wheels to grind a complete camshaft. This multiple-process machine grinds journals, bearing ...

Forged bearing steels and powder forged steels (e.g. AISI 52100, SAE 5160 and MPIF FL-4680) have been used to make cam lobes for assembled camshafts operating with roller followers. Application of ...