Information om | Engelska ordet CRANKCASE

Exempel på hur man kan använda CRANKCASE i en mening

• The engine's crankshaft remained stationary in operation, while the entire crankcase and its attached cylinders rotated around it as a unit.
• The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel.
• Cylinder heads were also attached to the crankcase, using X-shaped tie-downs on the top of the head attached to the block via four long bolts.
• The standard Hatsukaze Model 11 engine was modified at a Navy arsenal by replacing the propeller drive shaft and engine front crankcase cover with a step-up gearbox.
• Traditionally, aircraft engines were manufactured by machining separate steel cylinders and then bolting these assemblies directly to the crankcase.
• Farwell felt this configuration was lighter than conventional engines as it used neither a flywheel — since the spinning engine crankcase and cylinders acted as their own flywheel when running — nor radiator, because of its air cooled design.
• In automotive parlance, windage refers to parasitic drag on the crankshaft due to sump oil splashing on the crank train during rough driving, as well as dissipating energy in turbulence from the crank train moving the crankcase gas and oil mist at high RPM.
• Lubrication for two-stroke engines is achieved using oil that is either mixed into the fuel by the user or injected automatically into the fuel supply; engines requiring premixed fuel that are run solely on starting fluid do not receive an adequate supply of lubrication to their crankcase and cylinder(s).
• A pressure-operated inlet valve, which was balanced by a counterweight to equalize the centrifugal forces, was placed in the centre of the piston crown, where it opened to allow the fuel–air charge to enter from the engine's central crankcase.
• Consequently, the lubrication of the engine is split: the cylinders and the crankcase use different lubricants, each being specialised for its designated role.
• Changes included a new crankcase with better engine mounts (which incorporated the swingarm pivot) for a stiffer chassis, smaller exhaust valves to address a problem with cracking cylinder heads, and an improved automatic decompressor for easier starting.
• The engine also had a distinct harmonic balancer, crankcase windage tray, bigger diameter alternator pulley (from the 289 HiPo), and bigger diameter power steering pulley, all to accommodate a higher-revving engine than the standard 302.
• The positive crankcase ventilation (PCV) system utilized a plastic oil separator box that was vented directly to the block itself; the breather hose and PCV valve hoses attached to the box, and connected to the induction system.
• ;cylinder block & crankcase: cast aluminium alloy with two-part cast aluminium alloy oil sump; five main bearings; die-forged steel crankshaft with split crankpins; Lanchester principle balance shafts one above the other, counter-rotating at twice the crankshaft speed, symmetric to the middle of the crankshaft, upper one driven by a toothed belt.
• It used the '202' / valve diameter high-performance 327 double-hump '186 and 461 heads, pushrod guide plates, hardened 'blue-stripe' pushrods, edge-orifice lifters to keep more valvetrain oil in the crankcase for high-rpm lubrication, and stiffer valvesprings.
• In this two-piece arrangement, the upper oil pan casting incorporates the oil pump's supply passage, and is sealed to the crankcase oil filter housing with a paper gasket.
• Additional combustion control, including an even more efficient variable-geometry turbocharging system, cooled (enhanced) exhaust gas recirculation (EGR), and closed crankcase ventilation to reduce nitrogen oxides (NOx).
• The engine incorporates a wet crankcase, and the lubricant is cooled by an oil radiator in the front of the engine's air intake, which is triggered by a bi-metallic thermostatic valve.
• It has a number of improvements over the previous generation of Ford diesel engines, including the electronically controlled fuel injection pump otherwise known as "fly-by-wire" In addition, the traditional oil sump is replaced with a cast aluminium lower crankcase and a shallow oil pan; there is an oil-to-water cooler, and a great many detail improvements to parts throughout.
• The failure caused the rear crankpin to overheat and fail, whereupon all the rear connecting rods failed, tearing through the cylinder walls and crankcase.

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