![]() ![]() This oil then forms emissions, either by being burned in the engine or as droplets in the exhaust, historically resulting in more exhaust emissions, particularly hydrocarbons, than four-stroke engines of comparable power output. Oil is mixed in with their petrol fuel beforehand, in a fuel-to-oil ratio of around 32:1. In a two-stroke engine, the exhaust gases transfer less heat to the cooling system than a four-stroke, which means more energy to drive the piston, and if present, a turbocharger.Ĭrankcase-compression two-stroke engines, such as common small gasoline-powered engines, are lubricated by a petroil mixture in a total-loss system. However, when weight and size are not an issue, the cycle's potential for high thermodynamic efficiency makes it ideal for diesel compression ignition engines operating in large, weight-insensitive applications, such as marine propulsion, railway locomotives, and electricity generation. Two-stroke gasoline engines with electrical spark ignition are particularly useful in lightweight or portable applications such as chainsaws and motorcycles. ![]() The first truly practical two-stroke engine is attributed to Yorkshireman Alfred Angas Scott, who started producing twin-cylinder water-cooled motorcycles in 1908. On 31 December 1879, German inventor Karl Benz produced a two-stroke gas engine, for which he received a patent in 1880 in Germany. The crankcase-scavenged engine, employing the area below the piston as a charging pump, is generally credited to Englishman Joseph Day. However, unlike most later two-stroke engines, his had a separate charging cylinder. ![]() The first commercial two-stroke engine involving cylinder compression is attributed to Scottish engineer Dugald Clerk, who patented his design in 1881. Two-stroke engines have fewer moving parts than four-stroke engines. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the power band. In a two-stroke engine, the end of the combustion stroke and the beginning of the compression stroke happen simultaneously, with the intake and exhaust (or scavenging) functions occurring at the same time. A four-stroke engine requires four strokes of the piston to complete a power cycle during two crankshaft revolutions. ![]() Thanks for looking.A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of the crankshaft. Dimensions are approximately 16 inches high, 17 inches wide, and 7 inches deep at the foot. The plug is a 2 prong US standard, and the switch is a pull chain, with an elegant bowtie ornament. This means a lot of hours of light before replacement. Each lamp is tested before shipment and ships ready to use, with a pair of easily replaceable candelabra 120V AC LED bulbs. All connections are soldered and insulated with heat-shrinkable tube. The metal is stamped with the Chevrolet script. The valve cover is salvaged from a 50's Chevrolet Truck V8 engine, and upcycled into a beautiful and useful piece. Besides functional, it is definitely a great conversation starter. No matter where you put it, it will always be a great addition to your space. A very solid piece you can use on your work desk, nightstand, side table, man cave, automobilia. This is a nice vintage Chevrolet Script valve cover desk lamp with a lot of character. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |