- vacuum restrictor
- (VREST) controls the flow rate and/or timing in actions to the different emission control components
Dictionary of automotive terms. 2015.
Dictionary of automotive terms. 2015.
restrictor — [1] A porous device located in vacuum lines to delay vacuum applied to diaphragms. [2] A device for producing a deliberate pressure drop or resistance in a line by reducing the cross sectional flow area. [3] See nozzle restrictor … Dictionary of automotive terms
VREST — Acronym for vacuum restrictor … Dictionary of automotive terms
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