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For variable valve lift, competing technologies (e.g., Honda's VTEC and BMW's Valvetronic) use electromechanical concepts, achieving valve lift variation via dedicated mechanisms; it can also be combined with camshaft phasers to allow control of both valve lift and phase. In contrast, MultiAir uses managed hydraulic fluid to provide variable ...
The pneumatic control signals are traditionally based on a pressure range of 3–15 psi (0.2–1.0 bar), or more commonly now, an electrical signal of 4-20mA for industry, or 0–10 V for HVAC systems. Electrical control now often includes a "Smart" communication signal superimposed on the 4–20 mA control current, such that the health and ...
The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds, to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. [1]
Other local standards are: Europe: EN 62026-2: 2015 Japan: JIS C 82026-2 (2013) China: GB / T 18858.2 (2002) Korea: KS C IEC 62026-2 (2007) AS-Interface products are certified by the AS-International Association e.V. Tests and certifications ensure that devices from different manufacturers work together.
Go to the main AOL page.; Click Sign in in the upper right hand corner.; Click Create an account at the bottom of the screen.; Enter and submit the requested information.
A video on YouTube from the German premiere of Water for Elephants days after that Today interview shows the actor admit he "actually made the whole thing up" when an interviewer asked him about ...
$12.50 off each box of 10 filters or a new pitcher and pack of two filters. No more plastic bottles—say hello to Brita! Whether you’re stocking up on the 10-count box of filters or grabbing a ...
Here, small valves were attached to the original control cables, controlling the flow of oil into an associated actuator connected to the control surface. One of the earliest fittings of a hydraulic boost system was to ailerons on late-war models of the P-38L, removing the need for great human strength to achieve a higher rate of roll. [2]