Sentences with phrase «longer compression stroke»

Not exact matches

I always assumed that it would take so long for the air to fill the cylinder that it would not be able to get to 1 atmosphere before the compression stroke started.

It features the same bore as the F12's 6.2 - litre V12 but has a longer 78 mm stroke and a compression ratio of, deep breath, 13.64:1.

To achieve the higher compression ratio a longer stroke is required.

Squeezing the mixture harder during compression and allowing it to expand longer on the power stroke wrings additional power out of every ounce of gasoline.

Diesel engines usually have longer stroke lengths chiefly to facilitate achieving the necessary compression ratios.

They took a R18A cylinder block, replaced the crankshaft with a new one with longer stroke (96.9 mm), installed 152.63 mm long rods, the pistons size remained the same, 81 mm, and their compression height was 28.82 mm.

Inside they installed crankshaft with 86 mm piston stroke, long connecting rods, light pistons, and compression ratio reached 11.

Due to the unique crankshaft design of the Atkinson, its expansion ratio can differ from its compression ratio and, with a power stroke longer than its compression stroke, the engine can achieve greater thermal efficiency than a traditional piston engine.

It has the same aluminum cylinder block with cast iron sleeves, new cast iron crankshaft with 89.6 mmm stroke, new connecting rods which are 135 mm long and modified lighter pistons with piston compression height 28.32 mm.

While Atkinson's original design is no more than a historical curiosity, many modern engines use unconventional valve timing to produce the effect of a shorter compression stroke / longer power stroke, thus realizing the fuel economy improvements the Atkinson cycle can provide.

The 2.7 - liter turbo has an unusually long stroke — the distance the piston travels up and down within the cylinder — of 4.01 inches (102 mm) to provide a high compression ratio (10.0:1) and improved combustion, GM says.

With its long - stroke and high compression ratio, multi-hole direct fuel injectors, variable cooling system and the latest version of Toyota's Variable Valve - Timing - intelligent Electric (VVT - iE), this high - output powerplant takes the gasoline - powered internal combustion engine to a new level with world - leading thermal efficiency of 40 %.

In an Atkinson cycle engine, the compression stroke is deliberately delay by opening the intake valve a little bit longer.

The engine leverages the spectrum of Toyota's advanced engine technologies: Dual VVT - i with VVT - iE (Variable Valve Timing intelligent system by Electric motor); D - 4S (Direct injection 4 - stroke gasoline engine Superior version) direct injection and laser - clad valve seats; longer stroke (4.07 inches; bore remains at 3.44 inches) and high compression ratio (14:1); multi-hole direct fuel injectors; a variable cooling system; cooled Exhaust Gas Recirculation (EGR) system; and a full variable oil pump.

As in the previous 2.0 - liter TSI engines, the increased displacement comes solely from a longer piston stroke (92.8 mm vs. 84.1 mm in the 1.8 TSI), while the compression ratio rises to 11.7:1 due to a modified piston crown and combustion chamber.

The long stroke enables improved combustion and thus a higher compression ratio.

Technologies required include: Dual VVT - i with VVT - iE (Variable Valve Timing intelligent system by Electric motor); D - 4S (Direct injection 4 - stroke gasoline engine Superior version) direct injection and laser - clad valve seats; longer stroke (4.07 inches; bore remains at 3.44 inches) and high compression ratio (14:1); multi-hole direct fuel injectors; a variable cooling system; cooled Exhaust Gas Recirculation (EGR) system; and a full variable oil pump.

Doing it all took the implementation of Toyota's vast catalog of advanced engine technologies: Dual VVT - i with VVT - iE (Variable Valve Timing intelligent system by Electric motor); D - 4S (Direct injection 4 - stroke gasoline engine Superior version) direct injection and laser - clad valve seats; longer stroke (4.07 inches; bore remains at 3.44 inches) and high compression ratio (14:1); multi-hole direct fuel injectors; a variable cooling system; cooled Exhaust Gas Recirculation (EGR) system; and a full variable oil pump.