Variable speed pumps have been around for years. As I mentioned in last month’s article, I used the technology at my own home at the turn of the century. A control varied the speed of a pump in an ...

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...

The new Cat 6015 hydraulic mining shovel has been upgraded with improvements in machine uptime, operating efficiency and ...