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1 Gearheads Rejoice! The Internal Combustion Engine is Back (May 2011)

The opposed-piston internal combustion engine is making a comeback.

2 If He Builds It, Will They Come (September/October 1999)

Richard Spens has been rebuilding antique machine tools for nearly a decade. He is drawn to the ornate architecture and fascinated by the open design that allows you to see inside a machine as it operates. "Working with machines has been a lifelong thing with me," said Spens, now a design engineer. "I started building steam engines when I was 10 years old." What he's working on now, however, is bigger than any steam engine or machine tool. In rural Livonia, Michigan, Spens is converting an old dairy barn into an accurate recreation of a turn-of-the-century, belt driven gear shop. It's an outgrowth of his interest in antique machine tools and, he feels, a way to stem the tide that is costing America so many manufacturing and skilled trade jobs.

3 Philly Gear: A Long Life, A New Direction (January/February 2004)

Large marine gearboxes. More than a year in production, each weighing 125,000 pounds, the gearboxes were for U.S. Navy amphibious ships, for combining the power of 10,000 hp diesel engines to drive propeller shafts. They were also the last major gear products shipped from Philadelphia Gear Corp.ís King of Prussia factory.

4 Marine Gears: Special Aspects for High Performance (May/June 2006)

A gearbox that absorbs 30 percent of external forces, transmits power from two engines operating at different speeds, and uses gears that meet several design and specification standards at the same time...

News Items About engines

1 Sunnenís SV-310 Bore Sizing System Designed for Small Engines, Compressors (August 21, 2007)
Sunnen's new SV-310 vertical CNC honing system combines a choice of tooling options, large work envelope, and 762mm/30" str... Read News