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Common rail fuel system on a Volvo truck engine. In 1916 Vickers pioneered the use of mechanical common rail systems in G-class submarine engines. For every 90° of rotation, four plunger pumps allowed a constant injection pressure of 3,000 pounds per square inch (210 bar; 21 MPa), with fuel delivery to individual cylinders being shut off by valves in the injector lines. [1]
A cylinder head of a four valve Nissan VQ engine engine. A multi-valve or multivalve engine is one where each cylinder has more than two valves (an intake, and an exhaust).A multi-valve engine has better breathing, and with more smaller valves (having less mass in motion) may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power.
A Dual-mass flywheel may be used with manual transmissions. The aluminium-alloy Crossflow cylinder head houses two camshafts driven by a combined gear and chain drive operating 4 valves per cylinder (16 in total) by bucket tappets. Exhaust is on the LH side which makes an “exhaust forward” arrangement when the engine is installed transversally.
However, these generally have the roller at the point where the cam lobe contacts the rocker, rather than where the rocker contacts the valve stem. Some OHC engines employ short rocker arms, also known as finger followers, [2] in which the cam lobe pushes downward on the back of the rocker arm to open the valve. In such a configuration one end ...
The L5P Duramax is the latest version of the Duramax V8 diesel engine.(engine code Y). Introduced in the 2017 model year, it was the most powerful diesel engine GM had produced, with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm.
It was founded in 1939 as Diesel Kiki Co., Ltd., under a Bosch license, for domestic production of fuel-injection pumps for diesel engines. [1] Originally established with an investment from Isuzu, this company was renamed ZEXEL Corp. in 1990. Diesel-Kiki entered into a joint venture in the United States with Wynns Climate Systems to begin ...
Early Lucas electronic diesel unit injector. A unit injector (UI) is a high-pressure integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component. The plunger pump used is usually driven by a shared camshaft. In a unit injector, the device is typically lubricated and ...
The company's inventions includes the first precision valve steam engine (1876), the Sulzer diesel engine (1898) and artificial hip joints (1965). Sulzer Brothers helped develop shuttleless weaving and their core business in the 1970s and 1980s was loom manufacturing.