venturi vacuum amplifier

venturi vacuum amplifier
(VVA) used with some EGR system so that carburetor venturi vacuum can control EGR valve operation; venturi vacuum is desirable because it is proportional to the airflow through the carburetor

Dictionary of automotive terms. 2015.

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  • EGR venturi vacuum amplifier — A device that uses a relatively weak venturi vacuum to control a manifold vacuum signal to operate the EGR valve. Contains a check valve and relief valve that open whenever the venturi vacuum signal is equal to or greater than manifold vacuum …   Dictionary of automotive terms

  • signal amplifier — Any device, such as the booster venturi, that amplifies a vacuum signal …   Dictionary of automotive terms

  • VVA — Acronym for venturi vacuum amplifier …   Dictionary of automotive terms

  • List of retronyms — This is a list of retronyms, which are terms renamed after something similar but newer has come into being.NounsA B; Acoustic guitar : Before the invention of the solid body electric guitar, all guitars amplified the sound of a plucked string… …   Wikipedia

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