A flat-four engine, also known as a horizontally opposed-four engine, is a four-cylinder piston engine with two banks of cylinders lying on opposite sides of a common crankshaft. The most common type of flat-four engine is the boxer-four engine, each pair of opposed cylinders moves inwards and outwards at the same time.
A straight-four engine is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft.
An H engine is a piston engine comprising two separate flat engines, most often geared to a common output shaft. The name "H engine" is due to the engine blocks resembling a letter "H" when viewed from the front. The most successful "H" engine in this form was the Napier Dagger and its derivatives. The name was also applied to engines of the same basic layout, but rotated through 90 degrees - most famously the Napier Sabre series. A variation on the "H" theme were the Fairey Prince (H-16) & Fairey P.24 Monarch, where the two engines retained separate drives, driving Contra-rotating propellers through separate concentric shafts. Although successful, they only existed in prototype form.
A straight-three engine is a three-cylinder piston engine where cylinders are arranged in a line along a common crankshaft.
Yamaha Motor Co., Ltd. is a Japanese manufacturer of motorcycles, marine products such as boats and outboard motors, and other motorized products. The company was established in 1955 upon separation from Yamaha Corporation, and is headquartered in Iwata, Shizuoka, Japan. The company conducts development, production and marketing operations through 109 consolidated subsidiaries as of 2012.
The Apollo was a German automobile manufactured by Ruppe & Son of Apolda in Thuringia from 1910 to 1927; the company had previously offered a car called the Piccolo. The first Apollo was called the "Mobbel", and featured an air-cooled 624cc single-cylinder ioe engine. The company also offered air-cooled 1608 cc in-line fours and a 1575 cc V-4. Four separate cylinders inline powered the model "E" (1770cc). The model "B", designed by racing driver Karl Slevogt, had an ohv 960 cc four-cylinder engine. Another of the designer's fine creations had an ohv 2040 cc engine. Other Apollos had sv four-cylinder engines of up to 3440 cc; some post-1920 models featured wishbone suspension. The last cars produced by the company had ohv 1200 cc four-cylinder engines; some had sv 1551 Steudel four-cylinder power units instead. The famous designer of two-stroke engines, Hugo Ruppe, was the factory founder's son; in 1920 Apollo took over his air-cooled MAF cars. During the mid-1920s, Slevogt raced cars of this marque with streamlined Jaray bodies.
Coventry Victor was a British motorcycle and car manufacturer. Originally Morton & Weaver, a proprietary engine manufacturer in Hillfields, Coventry, founded in 1904, the company changed its name to Coventry Victor Motors in 1911, the company closed in 1971.
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power.
The GSX Series is Suzuki's range of sport touring motorcycles powered by four-valve per cylinder four-stroke engines. The first GSX models were introduced in 1980 and represented the next step in Suzuki's four-stroke road bike range after the two-valve GS Series.
The Honda CR series is a range of off-road motorcycles made by the Honda corporation from 1973 onwards.
A motorcycle engine is an engine that powers a motorcycle. Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankels and electric motors, have been used.
Goliath-Werke Borgward & Co. was a German car manufacturer started by Carl F. W. Borgward and Wilhelm Tecklenborg in 1928, and was part of the Borgward group. Goliath was based in Bremen and specialized in three-wheeler cars and trucks and medium-sized cars. Their vehicles were sold under the Goliath brand.
Scorpa is a manufacturer of trials motorcycles based near Alès, France. It was founded in 1993 by Marc Teissier and Joël Domergue. The first model produced by the company was the WORKS 294 in 1994, powered by a single-cylinder, two-stroke Rotax engine. In 1998, Scorpa signed an agreement with Yamaha Motor Company to use its engines in subsequent models.
The Volkswagen air-cooled engine is an air-cooled boxer engine with four horizontally opposed cast-iron cylinders, cast aluminum alloy cylinder heads and pistons, magnesium-alloy crankcase, and forged steel crankshaft and connecting rods.
The Elizalde was a Spanish automobile manufacturer from 1914 until 1928.
Motorcycle components and systems for a motorcycle are engineered, manufactured, and assembled in order to produce motorcycle models with the desired performance, aesthetics, and cost. The key components of modern motorcycles are presented below.
BMW Motorrad is the motorcycle brand of the German company BMW, part of its Corporate and Brand Development division. It has produced motorcycles since 1923, and achieved record sales for the fifth year in succession in 2015. With a total of 136,963 vehicles sold in 2015, BMW registered a growth of 10.9% in sales in comparison with 2014. In May 2011, the 2,000,000th motorcycle produced by BMW Motorrad was an R1200GS.
AER was a British motorcycle manufacturer. The name was from the initials of the founder, Albert E. Reynolds. Based in Liverpool and his company, AE Reynolds Ltd., ceased motorcycle production on the outbreak of the Second World War.
Five-stroke engine is currently a concept engine invented by Gerhard Schmitz in 2000. Schmitz's concept is being developed by Ilmor Engineering. Ilmor's prototype is an internal combustion engine uses a solid cylinder block with electric motors driving the oil and water cooling pumps. The prototype uses two overhead camshafts with standard poppet valves. The Five-stroke prototype engine is turbocharged. The goal of the five-stroke engine is to have higher efficiency with lower fuel use. To increase efficiency a secondary cylinder is added as an expansion processor to extract more energy from the fuel.
