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...fold, there is no intake vacuum when the engine is not fueling. The intake vacuum creates the slowing effect felt in [[gasoline]] engines when they are going ...from the engine, causing the exhaust gases to be compressed in the exhaust manifold, and in the cylinder. Since the exhaust is being compressed, and there is n

The servo clutch used an electric switch that supplied [[manifold vacuum]] via an actuator valve to a reservoir that disengaged the cluch. The clutc

...a function of the vacuum in the inlet [[manifold (automotive engineering)|manifold]]. Usually there is also a [[capacitor]] attached to the distributor. The c

...ss valve''' ('''CBV''') also known as a '''compressor relief valve''' is a vacuum-actuated valve designed to release pressure in the intake system of a turbo ...ideration and the engine runs rich for a period of time. Engines with a [[manifold absolute pressure]] regulated ECU or where the blowoff is mounted upstream

...r square inch|psi]] or [[bar (unit)|bar]] and many also measure manifold [[vacuum]] also in.Hg

...helicopters]]. Many NA engines today make use of [[Variable Length Intake Manifold]]s to harness [[Helmholtz resonance]], which has a mild forced induction ef * [[Manifold vacuum]]

...hrottle operation due to the work required to maintain [[intake manifold]] vacuum. [[Diesel engines]], however, are unthrottled and hence do not provide eng

...stance between the drums is controlled by the engine vacuum in the inlet [[manifold]] and engine [[RPM]], through centrifugal weights inside the drums. Between

...ust gasses. As the piston descends on the intake (inlet) stroke, a partial vacuum is created within the cylinder which draws in the fuel/air mixture. The in ...n the intake valve opens. The internal pressure problems with an induction manifold can be overcome by using a carburetor or injector for each cylinder.

...ust gasses. As the piston descends on the intake (inlet) stroke, a partial vacuum is created within the cylinder which draws in the fuel/air mixture. The in ...n the intake valve opens. The internal pressure problems with an induction manifold can be overcome by using a carburetor or injector for each cylinder.

...When attached to the low-pressure portion of the throttle body or intake manifold of the engine, the pressure in both chambers of the unit is lowered. The eq

...uel droplets would fall out of the carburetor instead of into the [[intake manifold]]; it also lent itself to use of an oil bath [[air cleaner]], where a pool ...ng the carburetor draws more fuel into the carburetor due to the partial [[vacuum]] that is created.

...th increasing [[revolutions per minute]] (RPM) and/or increased [[manifold vacuum]], giving better efficiency. This system was used almost universally until

...through a small nozzle under high pressure, but a carburetor relies on the vacuum created by intake air rushing through it to add the fuel to the airstream. ..."breathes" during each induction event. This is proportional to the intake manifold's air pressure/temperature, which is proportional to throttle position. The