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Cylinder head. In a piston engine, the cylinder head (aka " head ") sits above the cylinders, [1] forming the roof of the combustion chamber. In sidevalve engines the head is a simple plate of metal containing the spark plugs and possibly heat dissipation fins. In more modern overhead valve and overhead camshaft engines, the head is a more ...
Green. Nickname. USU. Website. usu .ac .id. The University of North Sumatra ( Indonesian: Universitas Sumatera Utara or USU) is a public university located in the city of Medan in North Sumatra, Indonesia . It is situated in Padang Bulan, in the Medan Baru subdistrict of Medan, close to the City Centre, with a total area of 122 hectares.
The 2.5 L I4 head lost two cylinders in its center compared to the original 258 cu in (4.2 L) I6 design. A new cylinder head for the 2.5 L I4 engine featured a double-quench combustion chamber.
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Reverse-flow cylinder head. In engine technology, a reverse-flow or non-crossflow cylinder head is one that locates the intake and exhaust ports on the same side of the engine. The gases can be thought to enter the cylinder head and then change direction to exit the head. This is in contrast to the crossflow cylinder head design.
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Multi-valve. 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 ...
Unofficially, Subaru stated that "FB" stands for " FHI /Future and Brand New/Boxer". [2] It was announced in September 2010 as the third generation (following the EA 1st and EJ 2nd generations) boxer engine family with 2.0 litre and 2.5 litre naturally aspirated variants. [3] The FB has an all new block and head featuring dual overhead cams with intake and exhaust variable valve timing (which ...