Instead of intake and exhaust valves, the patented LZ-1 IC engine uses intake and exhaust pistons and a power piston. As the intake piston passes the intake ports, a fuel charge fills the volume between the three pistons. All three pistons then compress the fuel charge, and two or three spark plugs ignite it. The three pistons then act as power pistons, driving three crankshafts. In the existing prototype, a chain links the crankshafts. During the exhaust stroke, the exhaust piston opens the exhaust ports, and the power piston forces about 80% of the exhaust out the ports. The exhaust piston generates a vacuum that scavenges the remainder of the exhaust. Vacuum produced by the exhaust piston helps draw in the new fuel charge.
John A. Spera, Creative Innovations, Box 470518, Broadview Heights, OH 44147-0518, 216-387-0257.
Its inventor reports that the LZ-1 engine can achieve higher compression ratios and a more effectively controlled combustion process than a conventional IC engine.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is