By Manon Marianne. Engine Wiring. Publised at Tuesday, September 19th 2017, 19:35:06 PM. Pistons move up and down the cylinder. They look like upside down soup cans. When fuel ignites in the combustion chamber, the force pushes the piston downward, which in turn moves the crankshaft (see below). The piston attaches to the crankshaft via a connecting rod, aka the con rod. It connects to the connecting rod via a piston pin, and the connecting rod connects to the crankshaft via a connecting rod bearing.
By Faustine Arnaud. Electrical Wiring. Published at Friday, December 01st 2017, 15:47:08 PM. The National Electrical Code (NEC) dictates that no wiring splices are allowed outside of an approved enclosure. One type of approved enclosure is a junction box. A junction box is simply a standard electrical box that is mounted securely (to house framing or another structure) and contains the splice—the wiring connection—of two or more circuit cables or wires. The cables are secured to the box with cable clamps (or conduit connectors, if the circuit includes conduit), and it must have a removable cover to create a complete enclosure. Junction box covers must remain accessible; they cannot be covered with drywall or other surface material.
By Thibault Margaux. Engine Wiring. Published at Thursday, November 30th 2017, 14:59:04 PM. I’ve never been a car guy. I just didn’t have any interest in tooling around under the hood to figure out how my car works. Except for replacing my air filters or changing the oil every now and then, if I ever had a problem with my car, I’d just take it into the mechanic and when he came out to explain what was wrong, I nodded politely and pretended like I knew what he was talking about.
By Sebastien Abel. Engine Wiring. Published at Wednesday, November 29th 2017, 14:28:15 PM. Low-temperature combustion processes are of significant interest due to very high thermal efficiencies with significant reductions in many criteria pollutants. As mentioned above, LTC has been a challenge due to the state of technology: unlike conventional spark-ignition and compression-ignition combustion modes, most LTC modes are kinetically controlled and hence much more sensitive to environmental conditions and ever-changing speed/load demands. Recent advances in enabling technologies such as fuel injection systems, turbomachinery, valve actuation, sensors, and onboard computers have led to new real-time control opportunities which are enabling the potential of LTC engines with production-viable hardware.
By Olivier Danielle. Electrical Wiring. Published at Tuesday, November 28th 2017, 10:50:34 AM. Join the bare copper (or green insulated) ground wires together first. If the box is metal, add a pigtail—a 6-inch length of the same type of ground wire—to the ground wire connection, then connect the loose end of the pigtail to the ground screw on the box. Join the white (neutral) wires together, then join the black (hot) wires together. If there are red (hot) wires, join them together. Confirm that all wires are secure by gently tugging on each wire.
By Faustine Arnaud. Engine Wiring. Published at Saturday, November 25th 2017, 03:02:52 AM. But gas- and diesel-powered engines are not done yet. Just as electrified cars — whether hybrids or pure battery-powered models — seem headed for market dominance, Mazda announced a breakthrough in gasoline engines that could make them far more efficient. It is the latest plot twist in a century of improvements for internal combustion engines, a power source pronounced dead many times that has persisted nevertheless. Here is some truth-squadding on the latest in auto technology.
By Faustine Arnaud. Engine Wiring. Published at Thursday, November 23rd 2017, 02:10:24 AM. Most camshafts extend through the top part of the engine block, directly above the crankshaft. On inline engines, a single camshaft controls both the intake and outtake valves. On V-shaped engines, two separate camshafts are used. One controls the valves on one side of the V and the other controls the valves on the opposite side. Some V-shaped engines (like the one in our illustration) will even have two camshafts per cylinder bank. One camshaft controls one side of valves, and the other camshaft controls the other side.
By Morgane Seraphine. Engine Wiring. Published at Wednesday, November 22nd 2017, 01:14:33 AM. Internal combustion engine efficiency has historically been limited more by the state of technology than innovation. As an example, the potential of technologies such as gasoline direct injection were known and attempted in production more than 50 years ago, but direct injection has only become widely available in production within the last decade and now makes up approximately 38 percent of new light-duty vehicle sales. Another example is low-temperature combustion modes such as homogeneous charge compression ignition combustion—in which fuel and air are injected during the intake stroke and then compressed until the entire mixture reacts spontaneously—which were demonstrated in a laboratory more than 30 years ago but are still many years away from market introduction.
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