Diesel engine exhaust gas purification method and exhaust gas purification system
US-9222394-B2 · Dec 29, 2015 · US
System and Method for Reducing Cold Start Emissions using an Active Exhaust Valve and an Exhaust Gas Recirculation Loop.
US2016348554A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016348554-A1 |
| Application number | US-201514726869-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 1, 2015 |
| Priority date | Jun 1, 2015 |
| Publication date | Dec 1, 2016 |
| Grant date | — |
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Abstract
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A system according to the principles of the present disclosure includes an engine start module and an exhaust valve control module. The engine start module determines when an engine is started based on at least one of an input from an ignition system and the speed of the engine. The exhaust valve control module selectively fully closes an exhaust valve in an exhaust system of the engine when the engine is started to trap exhaust gas in the exhaust system.
First claim
Opening claim text (preview).
What is claimed is: 1 . A system comprising: an engine start module that determines when an engine is started based on at least one of an input from an ignition system and the speed of the engine; and an exhaust valve control module that selectively fully closes an exhaust valve in an exhaust system of the engine when the engine is started to trap exhaust gas in the exhaust system. 2 . The system of claim 1 further comprising a catalyst temperature mo…
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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 US2016348554A1 cover?
- A system according to the principles of the present disclosure includes an engine start module and an exhaust valve control module. The engine start module determines when an engine is started based on at least one of an input from an ignition system and the speed of the engine. The exhaust valve control module selectively fully closes an exhaust valve in an exhaust system of the engine when th…
- Who is the assignee on this patent?
- Gm Global Tech Operations Llc
- What technology area does this patent fall under?
- Primary CPC classification F02D9/04. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Dec 01 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).