This unit operates with a significant 17 per cent less
friction than the engine it replaces, making it one of the most efficient in the class.
Not exact matches
That and a bit of
engine friction, which is less significant with modern
engines than it used to be.
With its low -
friction valvetrain, variable valve - timing and the latest Bosch
engine management system, the V - 12 feels awake at last, and it spins effortlessly to its power peak, which comes nearly 1000 rpm higher
than a decade ago.
The main updates to the
engine revolve around improving combustion and heat management, plus reducing
friction, and the Toyota engineers boast that the
engine's 40 percent thermal efficiency is greater
than any mass - produced car
engine on the planet.
Although this smaller - displacement turbo four - cylinder has lower internal
friction and reduced pumping loss
than a Skyactiv V - 6 would, fuel efficiency drops when the
engine is under high load, as the
engine runs richer to help keep the cylinders cooler.
And this doesn't result in a seized
engine or short
engine life caused by way more
friction in the parts
than they were designed for?
The
friction - reduction directive has Nissan more focused on improving existing powertrains rather
than plunging into new
engine programs.
Mazda CX - 5's SKYACTIV - G 2.5
engine has received small updates to reduce internal
friction and the amount customers will spend on fuel, but no feature stands out more
than its segment - exclusive cylinder - deactivation technology.
The
engine has 24 per cent less internal
friction than the rattling, outgoing 2.1 litre
engine.
It is a development of the
engine used in the 911 R and GT3 RS, with an upgraded valve train, a stiffer crank, low -
friction cylinder liners, a new cylinder head design that dispenses with hydraulic valve adjusters and a 9000rpm redline - 750rpm more
than the RS.
How can you get better
engine efficiency or better mileage with a CVT with more transmission
friction loss
than dual clutch units?
And although the VC - T has more moving parts
than other turbocharged, four - cylinder
engines, Kiga says it produces less
friction.
The new 1 - litre K10C petrol
engine has greater thermal efficiency
than the K10B used in other models because of a higher compression ratio (12.0:1 instead of 11.0:1), dual fuel - injection and
friction reduction.
Engines based on the Small Block architecture are typically smaller and lighter than competitive engines with overhead camshafts, and typically have lower fr
Engines based on the Small Block architecture are typically smaller and lighter
than competitive
engines with overhead camshafts, and typically have lower fr
engines with overhead camshafts, and typically have lower
friction.
The
engine itself also weighs less and has less internal
friction than previous iterations, the folks from Hiroshima say.
EVs offer instant torque, smooth acceleration and regenerative braking, and in the words of one EV owner, «EV driving is more fun
than a clunky ICE
engine, transmission, gear shifting and
friction brakes.»
The design was chosen thanks to the large volume of air four valves can move, while the roller - followers provided a smoother operation with less
friction than conventional lifters, adding to the
engine's efficiency.
The company says more
than 80 % of the parts on the four - cylinder
engine are new, resulting in lower internal
friction.
If the battery fills up due to regenerative braking in B the car will dissipate the energy by using the generator to spin the gas
engine (known as «
engine braking») rather
than using the
friction brakes on the wheels.
In general, we save fuel in three separate ways: first is with a grid charge; second is regenerative braking — we run very high power regen, much, much higher
than anyone and we pretty much avoid the use of
friction brakes; and third is running the
engine at the sweet spot.
At speeds over 50 mph, wind resistance requires more power
than engine and road
friction.
This is particularly evident in the speed and precision with which the car responds to driver inputs and in the attention focused on reducing internal
friction in the
engine for lower fuel consumption
than the F430, despite the fact that both overall displacement and power have increased.