| US 7,543,576 B2 | ||
| Exhaust-gas recirculation system | ||
| Hidetoshi Okada, Tokyo (Japan); Toshihiko Miyake, Tokyo (Japan); and Hisashi Yokoyama, Tokyo (Japan) | ||
| Assigned to Mitsubishi Electric Corporation, Tokyo (Japan) | ||
| Appl. No. 11/666,693 PCT Filed Oct. 26, 2005, PCT No. PCT/JP2005/019722 § 371(c)(1), (2), (4) Date May 01, 2007, PCT Pub. No. WO2006/075430, PCT Pub. Date Jul. 20, 2006. |
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| Claims priority of application No. 2005-008030 (JP), filed on Jan. 14, 2005. | ||
| Prior Publication US 2008/0135026 A1, Jun. 12, 2008 | ||
| Int. Cl. F02B 47/08 (2006.01); F02M 25/07 (2006.01) | ||
| U.S. Cl. 123—568.17 | 6 Claims |
| 1. An exhaust-gas recirculation system comprising:
a takeoff passage of exhaust gas communicating with an exhaust port of an internal combustion engine;
an introducing passage of exhaust gas communicating with an intake port of the engine;
a valve provided between the takeoff passage and the introducing passage, the valve opening and closing by contacting a movable
valving element with a valve seat and separating it therefrom; and
a control means for controlling an opening and closing operation of the valve,
wherein the introducing passage is branched on an outlet side of the valve into parts, correspondingly to the number of the
intake port of the internal combustion engine,
wherein a branching section is located at a position directly opposed to the movable valving element of the valve, and
wherein the branching section is constituted by in-valve partition plates provided within an opening and closing valve and
a plurality of areas partitioned by the in-valve partition plates are opposed to the respective introducing passages of the
internal combustion engine.
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