EGR (exhaust gas recirculation) exhaust guide tube and connection structure of EGR valve and plastic intake manifold

• Main Authors: WANG YINGJIE, HUI ZHAOCHEN, LIU JUN, ZHU HAOJIE, MU FANGYING, ZHANG YAZHOU, YE ZHIWEI, WANG QIANG, ZHANG YINGBING, CHEN YOUXIANG, WANG YOUCHENG, ZOU KAI, OUYANG CAIYUN
• Format: Patent
• Language: English
• Published: 07.01.2015
• 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

The utility model provides an EGR exhaust guide tube comprising a flange and a gas tube mounted thereon. The flange has a first end face facing the plastic intake manifold and a second end face facing an EGR valve. Two sleeves are arranged on the flange on two sides of the gas tube. The top ends of the sleeves are higher than the first end face. A connection structure of the EGR valve and the plastic intake manifold for the EGR exhaust guide tube is further provided. By the use of the EGR exhaust guide tube and the connection structure of the EGR valve and the plastic intake manifold, the problems of sealing, heat influence and seal failure can be all solved.