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Pogo oscillation is a self-excited vibration in liquid-propellant rocket engines caused by combustion instability. [1] The unstable combustion results in variations of engine thrust, causing variations of acceleration on the vehicle's flexible structure, which in turn cause variations in propellant pressure and flow rate, closing the self-excitation cycle.
The Rolls-Royce Merlin engine originally came with a direct carburettor, prone to cut-out due to fuel flooding in negative G. Miss Shilling's orifice was a very simple technical device created to counter engine cut-outs experienced during negative G manoeuvres in early Spitfire and Hurricane fighter aeroplanes during the Battle of Britain.
It is equipped with a recoil starter system or optionally electric start and a 2.5 or 2.8:1 belt reduction drive. [1] [2] [3] The engine runs on a mixture of unleaded auto fuel and oil. [1] [2] Producing 22 hp (16 kW) at 6600 rpm, the G-25 competed in the early 1980s ultralight powerplant market against the similar Rotax 277. Production of the ...
A series of inline-four DOHC engine with Dual VVT-i, ranging from 1.2 L to 1.5 L. Even though this engine is part of Toyota's engine family , but there are two versions of this engine family. The Daihatsu version is produced at Daihatsu's plant in Indonesia , by Perodua in Malaysia and later in Thailand by Toyota.
The wasserboxer features a cast aluminium alloy cylinder block, cylinder heads, and pistons; and a die-forged steel flat plane crankshaft with four main bearings. [1]As in Volkswagen's earlier air-cooled luftboxer engines, the wasserboxer's three-bearing camshaft is driven directly from the crankshaft by means of a small steel gear on the crankshaft and a larger aluminium gear on the camshaft ...
MIVEC (Mitsubishi Innovative Valve timing Electronic Control system) [1] is the brand name of a variable valve timing (VVT) engine technology developed by Mitsubishi Motors. MIVEC, as with other similar systems, varies the timing of the intake and exhaust camshafts which increases the power and torque output over a broad engine speed range ...
The common-rail-system is made by Bosch and also controlled by a Bosch DDE 4 ECU for non TÜ and DDE 5 ECU for TÜ. [3] All models are equipped with turbocharger and an intercooler. The 2.9L M57, which is found in E39 530d and E38 730d, as well as early models of E46 330d and E53 X5, is equipped with one Garrett GT2556V turbocharger.
In 2010, the 1.4 L MultiAir engine won the International Engine of the Year [8] as well as Popular Science's Best of What's New. [1] In the same year, the Fiat SGE engine (0.9 L turbocharged and 1.0 L naturally aspirated TwinAir units), also using MultiAir technology, was launched in the Fiat 500.