EXHAUST GAS VORTEX EJECTOR OF CARB AND DIESEL ENGINES Russian patent published in 2015 - IPC F01N1/08 F02B27/04 

FIELD: engines and pumps.

SUBSTANCE: vortex ejector comprises exhaust gas ejection booster, adapter sleeve and jet sleeve. Vortex chamber is composed of thin-wall hollow cone at vertex angle not exceeding 15 degrees arranged behind the adapter sleeve facing the exhaust gas flow and hollow conical cylinder. N lengthwise direct-flow plates are arranged between cone and hollow conical cylinder surfaces. Cross-section of flow channels changes from triangular to trapezoidal cross-section from cone vertex to its end. Ejector is composed by the end of thin-wall hollow cone, N flow channels and direct-flow circular channel composed of outer surfaces of hollow conical cylinder and air intake directed along the car motion. Spring blades are arranged at 30-60 degrees to the flow to make the lengthwise plates extension at the vortex chamber inlet. Exhaust gas inlet flow cross-section area and cross-sections of other functional elements are in the ratio of ~ 1:1.38:1.626:1.38. Jet chamber length and vortex chamber length and outlet diffuser length are in the ratio of ~ 1:1,2:0,4 mm. Through circular channel inlet cross-section and inlet exhaust gas flow cross-section as well as outlet diffuser convergence diameter and vortex chamber inlet cross-section are in the ratio of ~ 0,65:1.

EFFECT: higher wear resistance and reliability of brush seal, higher ICE efficiency, lower toxicity, fuel consumption and exhaust noise.

4 dwg