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Water condensate injection applied to dedicated egr engine

An engine, condensate technology, used in the field of condensate collection and injection

Inactive Publication Date: 2016-11-16
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The management of this condensate presents challenges to the implementation of dedicated exhaust gas recirculation technologies

Method used

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  • Water condensate injection applied to dedicated egr engine

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Embodiment Construction

[0011] Exemplary embodiments will now be described more fully with reference to the accompanying drawings.

[0012] Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth, such as examples of specific components, devices and methods, to provide a thorough understanding of embodiments of the invention. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the invention. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.

[0013] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an"...

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Abstract

An internal combustion engine includes an engine structure defining a plurality of cylinders. One of the plurality of cylinders is a dedicated exhaust gas recirculation cylinder wherein the exhaust passage in communication with the dedicated exhaust gas recirculation cylinder is an exhaust gas recirculation passage that is in communication with an intake manifold that is in communication with the plurality of intake passages. An exhaust gas recirculation cooler is in communication with the exhaust gas recirculation passage. A charge air cooler is in communication with an inlet air / exhaust gas recirculation mixer. A condensate collection vessel is provided for collecting condensate from one or both of the exhaust gas recirculation cooler and the charge air cooler. An injection system injects condensate from the condensate collection vessel into the plurality of cylinders.

Description

technical field [0001] The present invention relates to internal combustion engines, and more particularly to condensate collection and injection for use with internal combustion engines having dedicated exhaust gas recirculation cylinders. Background technique [0002] This section provides background information to which the present disclosure is not necessarily prior art. [0003] Internal combustion engines utilizing dedicated exhaust gas recirculation cylinders are known in the art. Dedicated exhaust gas recirculation systems utilize exhaust gas generated in engine cylinders dedicated for reintroduction as exhaust gas recirculation. Improved vehicle fuel efficiency has been demonstrated through the use of dedicated exhaust gas recirculation cylinder technology. [0004] The exhaust consists of 10-15% water. The exhaust gas recirculated in the dedicated exhaust gas recirculation engine is first cooled by the exhaust gas recirculation cooler and then cooled again by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M26/02F02M26/12F02M26/13F02M26/22F02M25/03
CPCF02M25/03F02B29/0468F02M25/0222F02M26/35F02M26/43F02M26/22Y02T10/12
Inventor E·J·基廷
Owner GM GLOBAL TECH OPERATIONS LLC
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