Variable valve lift (VVL) is an automotive piston engine technology which varies the height a valve opens in order to improve performance, fuel economy or emissions. There are two main types of VVL: discrete, which employs fixed valve lift amounts, and continuous, which is able to vary the amount of lift. Continuous valve lift systems typically allow for the elimination of the throttle valve.[citation needed]
When used in conjunction with variable valve timing (VVT), variable valve lift can potentially offer infinite control over the intake and exhaust valve timing.[citation needed]
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Variablevalvelift (VVL) is an automotive piston engine technology which varies the height a valve opens in order to improve performance, fuel economy...
Variablevalve timing (VVT) is the process of altering the timing of a valvelift event in an internal combustion engine, and is often used to improve...
Nissan VariableValve Event and Lift (commonly abbreviated as VVEL) is an automobile variablevalve timing technology developed by Nissan. Nissan VVEL...
of valveVariablevalve timing – Process of altering the timing of a valvelift event Zone valve – Type of water of steam flow valve "Types of valve bodies...
VTEC (described as VariableValve Timing & Lift Electronic Control, but stands for Valve Timing Electronically Controlled) is a system developed by Honda...
122 cu in) turbocharged four-cylinder DOHC petrol engine with variablevalvelift and variablevalve timing which replaced the N53 (or BMW N52 in some markets)...
conjunction with the Valvetronic variablevalvelift system. VANOS is a variator system that varies the timing of the valves by moving the position and the...
codename for a family of straight-four 16-valve all-aluminium gasoline engines with variablevalvelift and variablevalve timing developed by BMW and PSA Peugeot...
first engine to use a continuously variable-length intake manifold, and BMW's first V8 to feature variablevalvelift (called Valvetronic). Unlike its predecessor...
also features direct fuel injection, variablevalve timing (called double Vanos by BMW), and variablevalvelift (called Valvetronic by BMW). The redline...
MultiAir or Multiair is a hydraulically-actuated variablevalve timing (VVT) and variablevalvelift (VVL) engine technology enabling "cylinder by cylinder...
system is a BMW variablevalvelift system which, in combination with VANOS, allows infinite adjustment of the intake valve timing and lift. The system claims...
balance shafts or Valvetronic (variablevalvelift). As per the N42 and N46, the N45 has double-VANOS (variablevalve timing). In 2007, the N45 was updated...
Jaguar Land Rover licensed the Multiair/UniAir electrohydraulic variablevalvelift system from Schaeffler Group, which Schaeffler in turn licensed from...
LCV but features Intake ValveLift Control (IVLC) system provides two-stage variablevalvelift in addition to continuous variable timing. Continuously commanded...
Nissan Ecology Oriented VariableValveLift and Timing (commonly known as VVL & VVT) is an automobile variablevalve timing technology developed by Nissan...
newer N55 uses only a single twin scroll turbocharger. Valvetronic (variablevalvelift) is claimed to improve throttle response, low-rev torque, exhaust...
The D Series engine is either SOHC or DOHC, and might include VTEC variablevalvelift. Power ranges from 66 PS (49 kW) in the Logo to 130 PS (96 kW) in...
series (4B1) valvetrain configuration was changed from DOHC to SOHC, Variablevalvelift (VVL) technology added. The engine usually is paired with the ecological...
Compared with its M54 predecessor, the N52 features Valvetronic (variablevalvelift), a lighter block due to the use of a magnesium alloy and an electric...
valvetrain, VANOS (variablevalve timing) and an aluminium engine block. It was the first BMW engine to have Valvetronic (variablevalvelift). The N42B18 has...
direct injection, DOHC and variablevalve timing (called double-VANOS by BMW). However, the N74 does not have variablevalvelift (called Valvetronic by BMW)...
include a twin-scroll turbocharger, direct injection, variablevalvelift (Valvetronic) and variablevalve timing (Double VANOS). The B48 engine was revised...
Ingenium technology licenses the Multiair/UniAir electrohydraulic variablevalvelift system from Schaeffler Group, which Schaeffler in turn licensed from...