-
Ford's Power Stroke Diesel Increases Power and Torque and Meets Emission Standards
include: * Compacted graphite-iron (CGI) engine block, the first in a Super Duty-class vehicle in North America. CGI is stronger than conventional grey cast iron. * An inboard-exhaust/outboard-intake configuration. Ford engineers essentially flipped the cylinder heads so the exhaust manifolds runs down
-
Gulliver's Engines
. Induction is through ports in the cylinder bases. Extra inlet air enters the exhaust valves because the valves remain open 90 after top-dead-center of the intake stroke. Both full and quarter-scale Gnomes have no throttle -- they run wide open at all times. (A "blip switch" in the aircraft let
-
Ain't that America
springs give the engine's redline a boost from 6,750 to 7,200 rpm. The intake camshaft has an electromechanical control mechanism which lets the cam's maximum opening point, relative to crankshaft degrees, vary between 85 and 145* after top-dead-center on the intake stroke. Variability depends on engine
-
Rethinking engines
. And though he died two years ago, his family-run continues to develop the technology and develop a working prototype. Basically, the Scuderi engine splits the four strokes -- intake, compression, power, exhaust --among paired cylinders. (Hence the term, split-cycle engine.) The compression cylinder
-
Vacuum and Pressure Handbook: Vacuum Pumps
Equipment used to generate vacuum, as noted earlier, is similar to air compressors. It's even possible to generate compressed air or vacuum with the same machine, depending on how it is installed. Vacuum pumps generally can be considered as compressors in which the discharge, rather than the intake
-
Don't destroy that race-car engine. Use this software instead.
determined, the next step is modeling intake and exhaust dynamics. The goal of the model is to generate a cylinder-pressure diagram over the full 720 of crankshaft rotation. Users select stroke, cylinder bore, and connecting-rod length. These parameters determine the exact position of the piston
-
Spray Pattern Recognition for Multi-Hole Gasoline Direct Injectors Using CFD Modeling (.pdf)
patternation. These regressions predicted the. simultaneously inducted into the cylinder during the. influence of a number of injector operating and design. intake stroke. By contrast, fuel vaporization and mixing. parameters, including injection system operating. for GDi engines must occur rapidly
-
Letters
emergency earthquake-relief supplies in South America. It was a six-cylinder vertically opposed engine in which exhaust ports were controlled by one piston and intakes by another. The exhaust side ran about 10% ahead of the intake. The idea has also been employed in gasoline 2-strokes, but usually