- vacuum control valve
- (VCV) a ported vacuum switch, controls vacuum to other emission devices during engine warm up
Dictionary of automotive terms. 2015.
vacuum control valve
Look at other dictionaries:
Vacuum delay valve — A vacuum delay valve is a valve with a small orifice, which delays a vacuum signal. These are commonly used in automobiles to alter the behavior of vacuum switches, vacuum motors, and other vacuum devices.The engine in a common automobile… … Wikipedia
vacuum switching valve — (VSV) an electrically controlled vacuum switching valve used to control emission control devices … Dictionary of automotive terms
control valve — [1] A valve which regulates or operates a system, especially a hydraulic or vacuum control system. [2] Valve which regulates the flow or pressure of a medium which affects a controlled process. Control valves are operated by remote signals from… … Dictionary of automotive terms
vacuum regulator valve three and four-port — (VRV) this type of vacuum regulator valve is used to control the vacuum advance to the distributor … Dictionary of automotive terms
vacuum delay valve — (VDV) a valve used by GM to bleed ported vacuum to the vacuum advance unit through a small orifice and control vacuum advance rate. Used to retard or delay the application of a vacuum signal. Also called delay valve … Dictionary of automotive terms
air control valve — (ACV) a vacuum controlled diverter valve (or a combination bypass/diverter valve) in an air injection system that diverts air pump air to either the upstream (exhaust manifold) or downstream (oxidation catalyst) air injection points as necessary … Dictionary of automotive terms
vacuum operated exhaust heat control valve — (VHC) a vacuum operated heat riser valve used by Ford to cause the exhaust to flow through the intake crossover passage for preheating of the air fuel mixture … Dictionary of automotive terms
Vacuum sewer — Vacuum sewers were first installed in Europe in 1882 but until the last 30 years it had been relegated to a niche market. The first who has applied the negative pressure drainage (so called vacuum sewerage) was the Dutch engineer Liernur in the… … Wikipedia
exhaust heat control valve — (HCV) a valve which routes hot exhaust gases to the intake manifold heat riser during cold engine operation. Valve can be thermostatically controlled, vacuum operated or computer controlled … Dictionary of automotive terms
thermactor air control valve — Combines a bypass (dump) valve with a diverter (up/down stream) valve; controls the flow of the thermactor air in respond to vacuum signals to its diaphragms … Dictionary of automotive terms
