EGR mixer using Venturi tube structure and having intake air pre-heating function

The utility model provides an EGR mixer using Venturi tube structure and having intake air pre-heating function. The EGR mixer using Venturi tube structure and having intake air pre-heating function comprises a mixer and an intake air pre-heater, the mixer thereof comprises a fresh air inlet pipe an...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO CONGLONG, HU XIAOGUANG, CHENG JIANDE, ZHAO HONGBIN
Format:	Patent
Sprache:	eng
Schlagworte:	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 STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR STARTING OF COMBUSTION ENGINES 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
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Beschreibung
Zusammenfassung:	The utility model provides an EGR mixer using Venturi tube structure and having intake air pre-heating function. The EGR mixer using Venturi tube structure and having intake air pre-heating function comprises a mixer and an intake air pre-heater, the mixer thereof comprises a fresh air inlet pipe and a mixed air outlet pipe; the fresh air inlet pipe is connected with a mixer core of the Venturi tube structure; an elbow air inlet passage is arranged between the mixer core and the mixed air outlet pipe; the fresh air inlet pipe is perpendicular to the mixed air outlet pipe; the lateral wall of the elbow air inlet passage is provided with an exhaust gas inlet port; the intake air pre-heater is arranged inside the fresh air inlet pipe. An annular stage form base is arranged inside the fresh air inlet pipe; the intake air pre-heater is mounted on the annular stage form base. The external side of the fresh air inlet pipe is provided with a pre-heater wiring post; the wire bundle of the intake air pre-heater is connected and fixed via the pre-heater wiring post. The exhaust gas inlet port is perpendicular to the central axis of the mixer core, and intersected with the Venturi tube at the tailing diffusion section of the Venturi tube structure of the mixer core. The EGR mixer using Venturi tube structure and having intake air pre-heating function integrates the intake air pre-heater with the EGR mixer, thus reducing the parts and the weight of the engine, and making structure of the whole machine simpler.