System and method for improving canister purging
US-9574507-B2 · Feb 21, 2017 · US
Common shut-off valve for actuator vacuum at low engine power and fuel vapor purge vacuum at boost
US2016201612A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016201612-A1 |
| Application number | US-201514593915-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 9, 2015 |
| Priority date | Jan 9, 2015 |
| Publication date | Jul 14, 2016 |
| Grant date | — |
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Abstract
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Methods and systems are provided for generating vacuum via an ejector arranged in a compressor recirculation flow path and an aspirator arranged in a throttle bypass path, where a suction port of the ejector is coupled with a canister purge valve having two outlet ports. In one example, the canister purge valve may include only a single flow restriction, the flow restriction arranged in a path coupling a fuel vapor purge system with the intake manifold when a solenoid of canister purge valve is open, such that a path coupling the fuel vapor purge system with the suction port of the ejector does not include any flow restrictions upstream of the suction port.
First claim
Opening claim text (preview).
1 . A vehicle system, comprising: an ejector in a compressor recirculation passage and an aspirator in a throttle bypass passage; and a canister purge valve having first and second outlets, a single flow restriction arranged in a first passage coupling a solenoid with the first outlet leading to an intake manifold, and a second passage having no flow restriction coupling the solenoid with the second outlet which leads to a suction port of the ejector. 2 . The system of…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US2016201612A1 cover?
- Methods and systems are provided for generating vacuum via an ejector arranged in a compressor recirculation flow path and an aspirator arranged in a throttle bypass path, where a suction port of the ejector is coupled with a canister purge valve having two outlet ports. In one example, the canister purge valve may include only a single flow restriction, the flow restriction arranged in a path …
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification F02M25/089. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jul 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).