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Bypass ratio. Schematic turbofan engines. The high-bypass engine (top) has a large fan that routes much air around the turbine; the low-bypass engine (middle) has a smaller fan routing more air into the turbine; the turbojet (bottom) has zero bypass, and all air goes through the turbine. The bypass ratio ( BPR) of a turbofan engine is the ratio ...
Wastegate. A wastegate is a valve that controls the flow of exhaust gases to the turbine wheel in a turbocharged engine system. [ 1] Diversion of exhaust gases regulates the turbine speed, which in turn regulates the rotating speed of the compressor. The primary function of the wastegate is to regulate the maximum boost pressure in turbocharger ...
A blowoff valve is designed to release pressure in the intake system when the throttle is closed. A "recirculating" type blowoff valve releases the pressurised air back into the non-pressurized section of the intake (i.e. upstream of the turbocharger), while an "atmospheric venting" type blowoff valve dumps the air directly into the atmosphere.
Volvo licensed diesel engines from Volkswagen Group for decades. 1979–1986 D20 — 2.0 L (1,986 cc) inline five-cylinder SOHC, 50 kW (68 PS) — Volvo 240 (for Finland and possibly other export markets) 1979–1994 D24 — 2.4 L (2,383 cc) inline six-cylinder SOHC, 60 kW (82 PS) — Volvo 240, Volvo 260, Volvo 740.
Updated August 1, 2024 at 5:13 PM. The crash of an Air Force Osprey aircraft eight months ago in Japan that killed all eight airmen on board was caused by a “catastrophic failure” of one of ...
Antilag system. The anti-lag system ( ALS) is a method of reducing turbo lag or effective compression used on turbocharged engines to minimize turbo lag on racing or performance cars. It works by retarding the ignition timing and adding extra fuel (and sometimes air) to balance an inherent loss in combustion efficiency with increased pressure ...
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DOHC 4 valves x cyl. The M176/M177/M178 is a petrol V8 engine range designed by Mercedes-AMG, replacing the M278 and M157 engines, and is based on the M133 engine. [ 1] The engine has two BorgWarner turbochargers positioned between the two cylinder heads in a "hot-V" configuration. The fuel injection system uses Bosch's new piezo-electric ...