With variable valve lift, the amount of air let into the cylinder is controlled by the duration the intake valves are left open.
The V - 8 engine adds
Valvetronic variable valve lift feature, which boosts output from the 50i's V - 8 to 445 hp and 480 lb - ft of torque — 45 hp and 30 lb - ft of torque more than before.
The package of technology is made up of TwinScroll turbocharging, High Precision Direct Injection, VALVETRONIC fully
variable valve lift control and Double - VANOS variable camshaft timing.
BMW TwinPower Turbo technology: TwinScroll turbocharger, High Precision Direct Injection, VALVETRONIC
fully variable valve lift control, Double - VANOS variable camshaft timing
The 1.8 in the new Corolla LE Eco package adds Valvematic — the first time Toyota has
used variable valve lift in North America.
Lighter, more fuel - efficient and powerful than its predecessors, it utilizes cutting - edge innovations, such as the Continuous
Inlet Variable Valve Lift system, to enhance every aspect of performance and fuel economy.
Aided by BMW TwinPower Turbo technology with twin - scroll turbocharger, High Precision Direct Petrol Injection, VALVETRONIC fully
variable valve lift regulation and Double - VANOS variable camshaft timing, the four - cylinder engine of the BMW 228i Convertible generates maximum power of 240hp between 5,000 and 6,500 rpm from a displacement of 2.0 liter.
In some cases, it reduces the number of cylinders in the car, adds turbocharging, and makes the airflow through the engine more efficient through
variable valve lift timing (BMW calls it Valvetronic), something hardly anyone thinks about.
However, the Valvetronic system
adds variable valve lift to the inlet cam, achieved by the use of a lever positioned between the camshaft and the inlet valves.
N52 engine: magnesium / aluminum composite construction and Valvetronic
variable valve lift As the «base» level powerplant, the N52 engine offers a wide variety of benefits in the 528i and 528xi Sedans.
Then there was the transverse - mounted, all - aluminum, 3.0 - liter DOHC V6 with titanium connecting rods, and it included not only variable valve timing but
also variable valve lift.
There is nary a bad word regarding news of direct injection or
variable valve lift implementations, even though their respective fuel efficiency increases range from around 3 % to 8 %.
To improve cold starting and cold running, SKYACTIV - D diesel engines are furnished with ceramic glow plugs as well as
exhaust variable valve lifts (VVL).
The three - cylinder's BMW TwinPower Turbo technology comprises a high - performance turbocharging system and direct gasoline injection with high - precision injectors positioned between the valves, along with VALVETRONIC throttle-less load control, which improves efficiency and response thanks to
seamlessly variable valve lift control.
The Valvetronic
variable valve lift improves performance and fuel efficiency, while detail refinements such as an electric water pump and volume - controlled oil pump also increase efficiency.
Using BorgWarner's variable force solenoid, CTA phasers require less engine oil, which also reduces parasitic losses and enables oil -
actuated variable valve lift systems to operate with an expanded duty cycle.
It benefits from Toyota Optimal Drive technologies,
notably variable valve lift, enabling it to deliver more power and torque than the previous 1.6 VVT - i engine, while at the same time making significant improvements in fuel consumption and emissions levels.
Same as the LCV but features Intake Valve Lift Control (IVLC) system provides two -
stage variable valve lift in addition to continuous variable timing.
The world's first ceramic - composite brake rotors arrived as optional equipment on the new 2001 911 Turbo, now hiked to 415 hp thanks in part to the introduction
of variable valve lift (VarioCam Plus in Porsche - speak).
The new engine utilizes Nissan's advanced VVEL (Variable Valve Event & Lift) technology, which combines hydraulic - controlled variable valve timing and electronically controlled
variable valve lift on the intake side to provide high performance and crisp response.
The biggest enhancements come in the form of a 2 -
step variable valve lift system, cooled EGR and key weight reduction in certain areas.
The gasoline engine is a 2.0 - liter turbocharged four - cylinder that uses twin - scroll turbos, Continuously
Variable Valve Lift technology, electro - hydraulic valve control, variable intake valve lift, direct injection, and an exhaust manifold that's integrated with the cylinder head casting.
Lighter, more fuel efficient and powerful than its predecessors, it utilises cutting - edge innovations, such as the Continuous
Inlet Variable Valve Lift system, to enhance every aspect of performance, fuel economy and helps to reduce CO2 emissions.
The M Performance TwinPower Turbo technology comprises a twin - scroll turbocharging system, High Precision Direct Injection featuring centrally positioned multi-hole injectors, VALVETRONIC
variable valve lift regulation and Double - VANOS variable camshaft timing.
Similar to the N54B30, initial N63 variants (including the S63) do not
use variable valve lift (Valvetronic), because its benefit of reducing of intake vacuum is not as important in turbocharged engines.
It's a 32 - valve design with variable valve timing, with
variable valve lift controls rather than a traditional throttle valve, and an 11.2:1 compression ratio.
New Pentastar technologies include a two - step
Variable Valve Lift system, cooled Exhaust - Gas - Recirculation and an upgraded Variable - Valve Timing system that reduces pumping losses and improves combustion.
The twin - turbocharged, 4.4 - liter V - 8 of the 2018 BMW M550i xDrive comes equipped with twin - scroll turbochargers, a precision injection system with Valvetronic
fully variable valve lift, and Double Vanos variable camshaft timing control, all of which add up to a maximum output of 456 horsepower and 480 lb - ft of torque.
These upgrades let increasing displacement to 3.7 L. On top two modified heads of cylinder block were installed, which had
continuous variable valve lift and timing system VVEL on intake and exhaust camshafts.
For example, some car engines already have
variable valve lift and timing, which provides greater control over the flow of air into and out of the combustion chamber; until now automakers have employed this system primarily to boost horsepower, but it can also be used to increase fuel economy.
Compared to the outgoing inline - six, the new four - cylinder is both more powerful and torquier, using direct injection, Valvetronic
variable valve lift, and a twin - scroll turbocharger.