Hydrocarbon emission control system
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United States of America Patent
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Apr 2, 2020
Grant Date -
Apr 2, 2020
app pub date -
Sep 27, 2018
filing date -
Sep 27, 2018
priority date (Note) -
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Abstract
An exemplary system for monitoring and controlling evaporative emissions for a vehicle includes a first fuel vapor adsorption canister, a second fuel vapor adsorption canister, a first passage from the fuel supply to the first canister, a second passage from the first canister to the canister, the second passage including a first valve selectively actuatable from a first position to a second position, a third passage from the first and second canisters for venting the first and second canisters, a fourth passage connecting the second canister to the third passage, and a controller electrically connected to the first valve. Fuel vapor is routed to the first canister when a first condition is not satisfied and fuel vapor is routed to the second canister when the first condition is satisfied.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Andrzejewski, Jason M | Washington, US | 3 | 13 |
McCarthy, Timothy E | Grand Blanc, US | 9 | 59 |
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