bedplate

A heavy cast iron bedplate secures the engine to its base, usually of concrete.

The cylinder is attached to one end of the bedplate, the crankshaft bearings are at the other.

The bedplate is the relatively heavy metal foundation on which all the other pieces are fastened, usually by screws.

The engine's spring mounted box girder bedplate was designed to minimise vibration.

And we got to cut out and splice the lathe's bedplate to make room for the rotors.

'Transverse fracture engine bedplate,'" Preston read out. "

The second feature was internal in nature - the crankshaft main bearings were keyed into the bedplate on the right rear of each transverse web.

A great number of oil field engines used a crosshead to connect the piston rod to the connecting rod; this slides back and forth between the bedplate and crosshead guides.

Here the solid metal gave way to solder and he picked at this until he discovered that a piece of sheet metal had been soldered at the edges and fastened to the bedplate.

It uses a grey cast-iron block with die-cast aluminum bedplate, aluminum cylinder head, chain-driven DOHC valvetrain with hydraulic tensioners, dual continuous variable cam phasing, and forged steel crankshaft.

It also utilised a strengthened alloy crankshaft bedplate for the five main bearings, and a two-part baffled oil sump, and a light-alloy variable intake manifold (VIM), containing the sequentially actuated fuel injectors.

Soon after, multiple companies capitalized on the market for conversion cylinders, most producing a simple two-stroke gas cylinder to bolt onto a steam bedplate, thus avoiding patent infringement from Carruthers-Fithian (which by 1899 had formed the Bessemer Gas Engine Company in Grove City.)

Other improvements include inverted-tooth chain driving the camshaft, forged steel crankshaft, cast aluminum bedplate with main bearing cap inserts made of iron, high-pressure fuel rail with rubber-isolated assembly, acoustically shielded plastic cover for the intake manifold, and structurally enhanced aluminum camshaft cover and front cover.

There are some differences between the M54 and N54; the M54 is a single-piece block, with the water pump housing cast into the block, and is a closed-deck design, compared to the N54's two-piece block with a separate bedplate, electric water pump, and open deck.