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  • The Necessity Of A Plateaued Cylinder Wall Finish (.pdf)
    A detailed presentation of several test run engines with performance results of lower blow-by, increased compression, less ring and cylinder wall wear with the Flex-Hone Process. 28 pages.
  • New Test Facility Mimics Rail Car "Humping "
    quot;Humping, " in railroad jargon, means to couple railroad cars together by slamming them into one another at low speed. A 14-wheel rail test car (left) slams into a special barrier at speeds to 15 mph. The system from Control Power-Reliance, Troy, Mich., emulates the humping action of railroad
  • Using a nondestructive test to qualify corrosive specialty gas cylinders
    , the wafer surface can become contaminated. The first challenge suppliers of corrosive specialty gases face in improving the reliability of their products is to develop a delivery cylinder that remains nonreactive to the gases over many product fills, yet minimizes cost. Although the steel material used
  • 2002 Audi A4 1.8T CVT
    I wanted to test the continuously variable transmission (CVT) Just in case you can't decipher Audi's code for naming vehicles, the car I tested was an A4 with the 1.8-liter turbocharged engine and continuously variable transmission. It's a great little sedan, and I use the term a little bit loosely
  • Sorting out the truth about pneumatic standards
    Japanese test methods better predict pneumatic valve performance. SMC follows the latest ISO standards when rating pneumatic valve flow in terms of sonic conductance. Full stroke time of a pneumatic cylinder is inversely proportional to the maximum exhaust flow rate. represents the maximum constant
  • FEA makes manufacturing outcomes more certain
    useful manufacturing information. Isotherms from an Abaqus-based Simulation Advisor on the final shape of a tube and cylinder joined by inertia welding compare well with a test of an inertia-welded part. To get strong and reliable joints when faced with new manufacturing processes, engineers often
  • Sizing pneumatic cyclinders and ISO valves
    Look at flow coefficient, cylinder bore, and rod speed to best match pneumatic actuators and valves. In recent years, much discussion has centered on ratings (also known as capacity coefficients or flow factors) and whether or not American, European, and Japanese pneumatic-valve manufacturers rate
  • 2002 Ford Focus ZX5
    New this year, Ford's Focus ZX5 echoes the sportiness of its three-door ZX3, but with a couple more doors. Surprisingly, the ZX5 is the same length, width, and height as the ZX3, but weighs 49 lb more. During the test-drive week, I was under the delusion the ZX5 was larger than its sibling
  • 2003 Chevrolet Cavalier LS
    cancel the shaking forces inherent to inline four-cylinder engines. Our test model came with a five-speed manual transmission. A four-speed automatic is also available. Speaking of the manual transmission, kudos to GM engineers for selecting a top gear ratio that keeps engine rpm at reasonable levels
  • Analytical solution for capacitance calculation of a curved patch capacitor that conforms to the curvature of a homogeneous cylindrical dielectric rod
    of the cylinder cross-section. The resulting capacitance per unit length depends on both the dielectric properties of the material under test and the capacitor con?guration. A practical capacitance. measurement is also presented, with appropriately guarded ?nite electrodes. Very good agreement between
  • Rethinking engines
    Rocket engines and the internal-combustion cycle get a remake, thanks to engineering ingenuity. A four- cylinder split-cycle Scuderi engine should be as powerful as a traditional six-cylinder engine. It should also be able to burn almost any combustible fuel. A model of the IPD shows the intricate

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