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System and method of gas recirculation in an internal combustion engine

A technology of recirculation system and internal combustion engine, which is applied in the direction of exhaust gas recirculation, internal combustion piston engine, charging system, etc., and can solve the problems of reducing fuel combustion efficiency, emission allowance problems, and unsatisfactory problems

Inactive Publication Date: 2006-09-20
JACOBS VEHICLE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This condition can lead to reduced fuel burn efficiency and even possible emissions permitting issues
The main solution to this problem is to establish regular maintenance and cleaning cycles, which is not ideal for the long-distance heavy duty trucking industry
This approach is also problematic due to the practical difficulties involved in the cleaning of such systems

Method used

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  • System and method of gas recirculation in an internal combustion engine
  • System and method of gas recirculation in an internal combustion engine
  • System and method of gas recirculation in an internal combustion engine

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Embodiment Construction

[0030] Reference will now be made in detail to embodiments of the systems and methods of the present invention, examples of which are illustrated in the accompanying drawings. refer to figure 1 , which shows an embodiment of the invention as a gas recirculation system 10 in an internal combustion engine having an engine cylinder 125 , one or more intake valves 120 and one or more exhaust valves 130 . The system 10 includes an exhaust manifold 132 operatively connected to the cylinder 125 via an exhaust valve 130 and an intake manifold 122 operatively connected via an intake valve 120 Ground is connected to the cylinder 125. Exhaust manifold 132 may include a single body manifold or a split manifold.

[0031] System 10 also includes a gas recirculation passage 150 connecting the exhaust side of system 10 to the intake side of system 10 . In one embodiment, the gas recirculation passage 150 connects the exhaust manifold 132 to the intake manifold 122 . It should be appreciat...

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Abstract

A gas recirculation system is disclosed for improving engine braking in an internal combustion engine having an intake valve, an exhaust valve, and a cylinder. The system includes an exhaust manifold operatively connected to the cylinder through the exhaust valve; an intake manifold operatively connected to the cylinder through the intake valve; and a gas recirculation passage adapted to recirculate gas from the exhaust manifold to the intake manifold during an engine braking event.

Description

[0001] Cross References to Related Applications [0002] This application is an International Patent Application related to, and claiming priority from, U.S. Patent Application No. 10 / 458,257, filed June 11, 2003, which was issued on July 1, 2003 in the U.S. Continuation-in-Part of Patent No. 6,584,954, which is related to U.S. Patent Application No. 6,584,954, filed March 31, 2000, entitled "Use of External Exhaust Gas Recirculation ("EGR") to improve Compression Release Braking and Method For EGR Valve and System Cleaning Related to and claiming priority from is U.S. Provisional Application No. 60 / 193,366, the contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present invention generally relates to gas recirculation in an internal combustion engine. In particular, the present invention relates to a system and method for providing gas recirculation to improve engine braking performance, help clean exhaust gas recirculation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D13/04F02M25/07F02BF02B29/00F02B29/04F02D9/06F02D21/08
CPCF02M25/0752F02D41/006F02D41/0065F02D13/04F02B29/00F02M25/0751Y02T10/47F02M25/0746F02M25/0727F02M25/0742F02D21/08Y02T10/146F02D41/0007F02D41/0055F02M25/0701F02M25/071F02M25/0738F02D9/06F02D41/12F02M25/0713F02M25/0707F02M25/0728F02B29/0406F02M26/07F02M26/40F02M26/05F02M26/50F02M26/10F02M26/23F02M26/25F02M26/33F02M26/36F02M26/44F02M26/01Y02T10/12Y02T10/40
Inventor 杨周罗布·贾纳克尼尔·富克斯
Owner JACOBS VEHICLE SYST