GAS MIXING DEVICE

• Main Authors: SUGIURA KOJI, IGUCHI SHINGO
• Format: Patent
• Language: English; Japanese
• Published: 06.07.2015
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To provide a gas mixing device capable of suppressing variation in introduction amount of exhaust gas in a circumferential direction of a suction passage and in a passage length direction thereof.SOLUTION: A gas mixing device 1 includes: a housing 2 that has a suction passage 202 through which fresh gas G1 flows, and an EGR passage 21 that introduces exhaust gas G2 to the suction passage 202; and a partition wall part 3 that is arranged between the EGR passage 21 and the suction passage 202, and has a plurality of split flow holes 30d, 30e opened to the suction passage 202. The plurality of split flow holes 30d, 30e is distributed in the passage length direction and circumferential direction of the suction passage 202. 【課題】吸気通路の周方向および通路長方向における排気ガスの導入量のばらつきを抑制可能なガス混合装置を提供することを課題とする。【解決手段】ガス混合装置１は、新気ガスＧ１が流れる吸気通路２０２と、吸気通路２０２に排気ガスＧ２を導入するＥＧＲ通路２１と、を有するハウジング２と、ＥＧＲ通路２１と吸気通路２０２との間に配置され、吸気通路２０２に開口する複数の分流孔３０ｄ、３０ｅを有する隔壁部３と、を備える。複数の分流孔３０ｄ、３０ｅは、吸気通路２０２の通路長方向および周方向に分布している。【選択図】図７