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2. Secondary air injection - Wikipedia

   en.wikipedia.org/wiki/Secondary_air_injection

   Air injection can also be achieved by taking advantage of the negative pressure pulses in the exhaust system at engine idle. A sensitive reed valve assembly called the aspirator valve is placed in the air injection pumping, which draws its air directly from the clean side of the air filter. During engine idle, brief but periodic negative ...

3. Vehicle emissions control - Wikipedia

   en.wikipedia.org/wiki/Vehicle_emissions_control

   One of the first-developed exhaust emission control systems is secondary air injection. Originally, this system was used to inject air into the engine's exhaust ports to provide oxygen so unburned and partially burned hydrocarbons in the exhaust would finish burning. Air injection is now used to support the catalytic converter's oxidation ...

4. Virginia Department of Education - Wikipedia

   en.wikipedia.org/wiki/Virginia_Department_of...

   The Virginia Department of Education is the state education agency of the Commonwealth of Virginia.It is headquartered in the James Monroe Building in Richmond. [1] The department is headed by the Secretary of Education (currently Aimee Guidera), who is a member of the Virginia Governor's Cabinet, and the Superintendent of Public Instruction (currently Lisa Coons), a position that is also ...

5. Virginia Department of Environmental Quality - Wikipedia

   en.wikipedia.org/wiki/Virginia_Department_of...

   The Virginia Department of Environmental Quality is a state environmental agency that is responsible for administering laws and regulations related to air quality, water quality, water supply, and renewable energy and land protection in the U.S. state of Virginia. [1] [2]

6. List of school divisions in Virginia - Wikipedia

   en.wikipedia.org/wiki/List_of_school_divisions...

   All of the K-12 school districts are classified as dependent public school systems by the U.S. Census Bureau. [2] Each public school division is associated with one or more of the counties , independent cities and incorporated towns in Virginia, with major portions of their funding (and in many instances other services) provided through those ...

7. Category:Fuel injection systems - Wikipedia

   en.wikipedia.org/.../Category:Fuel_injection_systems

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

8. Virginia Department of Transportation - Wikipedia

   en.wikipedia.org/wiki/Virginia_Department_of...

   In 1927, the Virginia Department of Highways (VDH) was established as a state agency. VDH became the Virginia Department of Highways and Transportation (VDHT) in 1974, adding railroads and public transportation to its portfolio. In 1986, the General Assembly authorized expanded revenue sources for transportation, including airports and seaports.

9. Virginia Superintendent of Public Instruction - Wikipedia

   en.wikipedia.org/wiki/Virginia_Superintendent_of...

   In Virginia, the Superintendent of Public Instruction is the chief executive of the Virginia Department of Education and also serves as the Secretary of the Virginia Board of Education. Lisa Coons was appointed Virginia's 27th Superintendent of Public Instruction by Governor Glenn Youngkin, effective March 22, 2023. [1]