Systems and methods for managing purge pathway pressure in turbocharged engines
US10302031B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jan 25, 2017 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Jul 22, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for operating an evaporative emissions system in a turbocharged engine. In one example, a method may include pulsing open a canister purge valve responsive to the turbocharged engine entering a boosted mode of operation. The canister purge valve may be opened for a duration long enough to close a check valve coupled between the canister purge valve and an intake of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.