The jets
reduce piston temperature, allowing the engine to produce more power and enhance long - term durability.
The block features ladder frame construction for greater rigidity, crank journal and pin diameters have been increased, the block height increased by 8.4 millimeters to
reduce piston side force and the engine center is now 15 millimeters lower, which also contributes to the G's improved dynamic performance.
The Corvette oil system is also enhanced by eight oil - spraying jets in the engine block, which
reduce piston temperature for extreme output and long - term durability.
This helps
reduce piston temperature, enabling the engine to maintain maximum horsepower and torque, and also reduces engine noise.
The new engine block maintains the same bore and stroke, but the connecting rods were lengthened and the block deck was raised by 8.4 mm to
reduce piston side - loads.
Innovations introduced in the latest version include new low - noise injectors, a water cooled turbo for improved performance,
reduced piston friction for optimised efficiency, new EGR system for lower particulates, lighter engine components, faster glow plug operation, and enhanced NVH measures.
Engineers have designed a stiffer fixing between the injection pump and engine, while also
reducing piston noise at all engine speeds.
For 2010, power and efficiency improvements result from the engine's compression ratio increasing to 10:5:1 from 9.7:1, fuel injectors with a finer spray pattern, larger intake valves, spark plugs with extended electrodes, friction -
reducing piston rings, higher - precision timing sensor and a higher flow - rate exhaust system.
Not exact matches
So naturally, before 21,454 loyal subjects at The Palace in Auburn Hills, the
Pistons gathered themselves behind Thomas and
reduced the Hawks to feathers, 113 - 81, to move into the second round against the Boston Celtics.
Reduced role or not, there was Abdul - Jabbar on the floor with 14 seconds left in a do - or - die Game 6 of the championship series against the Detroit
Pistons last season.
This results in a much more perfectly cylindrical shape that in turn permits lower - tension
piston rings,
reducing their friction by an undisclosed amount (it typically accounts for 20 percent of overall engine friction).
Other measures include forged
pistons, reinforced crankshaft bearings, toughened
reduced - friction bore liners, a stiffer crankcase, a shorter cooling circuit, and more efficient lubrication.
I know that rpm is limited by an average
piston speed of roughly 25 m / s, and
reducing stroke allows for higher rpm, since it lowers
piston speeds.
Use the
piston from the «newer» design ie most recent - the engineers most likely made changes to
reduce or avoid certain issues.
Of course, if you're running shorter rods /
pistons for
reduced compression, things change.
Using aluminum hats on the steel brake discs, four -
piston brake calipers that require less structural bracing, and smaller wheelhubs and suspension knuckles, BMW
reduced unsprung weight by 15 percent over the outgoing car.
Peak power is now 490bhp (up 37bhp) while peak torque also increases to 372 lb ft, an increase of 14 lb ft.. These improvements have come from a new design of
piston crown, improved mechanical efficiency thanks to a reed valve in the crankcase to evacuate oil and blow - by gasses,
reduced backpressure from a redesigned 4 - into - 1 exhaust manifold and a reprogrammed ECU that exploits advances in the anti-knock properties of the latest petrol formulas.
Although it was based on the ordinary Civic's 1.5 - liter unit, clever updates such as smaller crankshaft journals and fewer
piston rings (two per cylinder, versus the 1.5's three) were implemented in the name of
reduced internal friction.
It's a simple but effective system, allowing boost to bump up to 2.5 bar from 2.3, cutting NOx emissions and
reducing the thermal load on
pistons, exhaust valves, and the turbochargers themselves as the exhaust gases are cooled, too.
Well, the latest dual - coil
piston reduces friction, has a wider force range and cuts overall response time by 75 per cent to just five milliseconds.
Forged
pistons add strength, while a special «nano slide» coating inside the cylinders
reduces friction against the
pistons.
New
piston heads and multispark injection, among other refinements, help
reduce emissions, as well.
The dampers have new
piston rods to
reduce friction for more efficient control which translates into a feeling of greater body control with better bump absorption.
Resin coating is applied to the
pistons, and lightweight aluminum material is employed for the first time in a motorcycle in the friction -
reducing roller rocker arm.
Mercedes says the special shape of the engine's steel
pistons, which run in motorsport developed «nanoslide» cylinder coatings,
reduce soot build - up even when running at low speeds.
The carbon fiber roof, driveshaft, and engine brace
reduce weight, and huge six -
piston carbon ceramic brakes offer serious stopping power.
Double overhead camshafts control variable timed valves to regulate intake and exhaust while lightweight
pistons use materials to
reduce friction.
To
reduce friction loss in the engine,
pistons in the 1.8 litre engine have a molybdenum treatment applied in a polka - dot pattern.
The Nu four - cylinder engine also has an offset crankshaft design that
reduces friction and pressure between the
piston and cylinder wall for a one - percent improvement in fuel economy.
Showa Separate Function Front Fork Big
Piston unit (SFF - BP) offers
reduced weight and excellent on - road performance
Thus instead of throttling and creating a vacuum above the downward moving
piston (when
reduced power is required) you just let the engine breath easy but reject some of the intake air by early or late intake valve closing.
* Main bearings» profiles changed to enhance oil film thickness * Oil pump flow increased for increased pressure at low speeds * The turbocharger's oil circuit is changed to provide increased pressure at the turbo and faster oil delivery * The connecting rods» pin ends are modified to provide increased
piston support * New, higher - strength
piston design that eliminates bushings to provide lower reciprocating weight * An EGR cooler bypass
reduces high - mileage soot deposits in the cooler and EGR circuit
The
pistons are cooled by oil jets directed at the underside of each
piston crown and feature an internal «cooling gallery» like Honda Formula 1 engines that is designed to
reduce temperature in the
piston ring area.
Ion - plated
piston rings help
reduce friction for greater operating efficiency.
Mechanical friction is also
reduced, further cutting engine noise and improving efficiency, with a new nano - diamond
piston coating.
The new engine comes with intermediate valve cam phasing that
reduces loss, a new electronically controlled thermostat and
piston - cooling jets.
The stiffer front wheel bearings are said to
reduce caliper knockback, a condition where deflection in the wheel bearings allow the brake rotors to push the brake pads into the caliper
pistons, and back into their bores creating a «knockback» sensation.
The cylinders diameter has been
reduced to 83 mm; the new
pistons have been installed.
They were also equipped with new
pistons, connecting rods, another camshaft, cylinder head gasket, ECU, and compression ratio was
reduced to 8.5.
[8] By increasing
piston stroke and decreasing
piston bore, Subaru aimed to
reduce emissions and improve fuel economy, while increasing and broadening torque output over the previous generation engine.
The NR engine family (there's also a 1.5 L version in the Avanza) comes with intake and exhaust Dual VVT - i, teflon coating for the
pistons (to
reduce friction and improve durability), larger water jackets (better cooling, improved combustion, lower noise), roller rocker arm (
reduces friction between rocker arm and camshaft) and iridium spark plugs (the 1.0 L KR in the Bezza and Axia also uses the latter).
Lightweight
pistons have a carefully optimized skirt design to minimize reciprocating mass, and
reduced weight minimizes vibration and increases operating efficiency.
Graphite - coated
pistons are optimized to
reduce friction and weight.
A forged steel crankshaft with integrated balancing shaft drive, weight - optimized
piston and forged conrod contributes to the high level of performance within the engine through
reduced frictional coefficients.
Due to the ultra-smooth cylinder surface, low tension
piston rings could be utilized, which
reduce friction while maintaining sealing efficiency.
Offset cylinder
reduces friction caused by the contact between the sliding
piston and the cylinder.
The PACE Award citation noted that increasing hydraulic pressures and
reduced packaging space in new generation dual clutch and automatic transmissions have triggered the need for higher tensile strength and higher modulus (stiffer) elastomer lips on bonded
pistons to resist deflection and wear.
Diamond - Like Carbon Coating (DLC) has been used to
reduce friction on the fuel pump tappets and a solid film lubricant has been used to coat the
piston skirts.
Pistons have been designed with a
reduced skirt area to help
reduce both weight and friction.
This
reduces friction caused by the side thrust of the
pistons against the cylinder walls, just after top - dead - center, as each
piston begins its descent on the firing stroke.