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An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. [ 1 ] [ 2 ] This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion chamber in the engine block .
The head, camshaft carriers, and timing chain cover are aluminum, and the sump is die-cast aluminum. [1] Although cogged timing belts were becoming popular among contemporary overhead cam designs, the Quad 4 uses timing chains to drive both camshafts, as well as the water pump. Engine accessories are driven by a single-plane serpentine belt.
All Volkswagen Group V8 gasoline engines are constructed from a lightweight, cast aluminum alloy cylinder block (crankcase) and cylinder heads. They all use multi-valve technology, with the valves being operated by two overhead camshafts per cylinder bank (sometimes referred to as 'quad cam').
Cam Drive. The engine is fitted with four overhead camshafts driven by synchronous tooth belts. The system was a joint development between Dayco (the belt supplier) and Rover. A long serpentine belt at the front drives the coolant pump and both inlet cams. At the rear, each inlet cam drives its exhaust cam by a short link belt.
The "Offy" engine was derived from this Miller marine engine An Offenhauser sprint "midget" racer. The Offenhauser engine, familiarly known as the "Offy", was an overhead cam monoblock 4-stroke internal combustion engine developed by Fred Offenhauser and Harry Arminius Miller. [4]
The Suzuki Quadsport LT230S (commonly referred to as the LT230 and also the "little brother" to the LT250R) was the first sport variety all-terrain vehicle sold in 1985.. It is powered by an overhead cam 2-valve 229 cc ("230") 4-stroke single-cylinder engine.
Tensions brewing in Asia's trade-rich waters top the agenda as U.S. President Joe Biden welcomes leaders from Australia, India and Japan to his Delaware hometown for a diplomatic push to counter ...
The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. Regarded as GM's most technically complex engine, the original double overhead cam, four valve per cylinder, aluminum block/aluminum head V8 design was developed by Oldsmobile R&D, [citation needed] but is most associated with Cadillac's Northstar series.