Patent ID: 6053153
Filing Date: 2000-04-25
Classification: F02M,Y02T

Abstract:
An internal combustion engine for motor vehicle, comprising an intake tube (15) for aspirating combustion air, said intake tube leads to at least one combustion cylinder (10), at least one throttle valve (16; 35) is disposed in said tube, said intake tube brings about a mixing of combustion air and fuel vapor downstream of the at least one throttle valve (16; 35), for fuel evaporation, a fuel evaporator (18) is disposed outside the intake tube (15), the fuel vapor is introduced via a delivery device (19; 19') into an intake tube portion (151) located immediately downstream of the throttle valve (16; 35); and that an orifice of the delivery device (19; 19') is disposed in the intake tube (15) such that the fuel vapor enters a turbulence path (23; 41) of the combustion air that unavoidably develops in said intake tube portion (151) because of the structurally dictated geometry of the intake tube and/or throttle valve, and the delivery device (19) has at least two discharge openings (24, 25), disposed diametrically near a wall of the intake tube, an opening cross section of said at least two discharge openings point in the flow direction (27), inclined by an angle of approximately 45.degree. from the intake tube axis (26).