摘要:
An intake manifold arrangement of an internal combustion engine has an intake manifold and a cooling fluid charge air cooler arranged in the intake manifold. The cooling fluid charge air cooler has cooling fluid tanks at first and second opposite ends. At least one of the cooling fluid tanks at the first end forms at least a part of the intake manifold and is an integral component of the cooling fluid charge air cooler.
摘要:
The arrangement of a charge air cooler in an intake system of an internal combustion engine has a charge air cooler that on the one hand is supplied with combustion air and on the other hand with a liquid coolant. A coolant/air cooler is provided in which the liquid coolant is cooled by an air stream. The charge air cooler is slantedly arranged in a pipe conduit for the charge air with regard to the end face of a heat exchanger block exposed to the charge air. The end face of the charge air cooler is arranged relative to the cross-section of the pipe conduit at an angle of >45°.
摘要:
A method and an apparatus are described for the simultaneous adjustment of an air intake stream 24 of an internal combustion engine 10 and of a secondary air stream 21 into the exhaust system 12 of the internal combustion engine, the secondary air stream being produced by a compressor 20 which is driven by a turbine 18. The turbine 18 is housed in a bypass duct 16, the bypass duct being arranged parallel to a throttle valve 14 in the air intake tract 11 of the internal combustion engine. Thus the required amount of secondary air 21 is dependent upon the throttle valve setting. To create compensation for this, a control valve 32, for example, is created, which is connected through a connecting duct 4 to the secondary air duct 22. The control valve affects the cross section of the bypass line 16, so that in the event of an opening of the throttle valve 14 the cross section of the bypass duct can be expanded simultaneously, so that the pressure drop at the turbine, produced by throttle valve opening can be compensate. Alternatively the arrangement of a control valve is possible, which is operated by a control unit. Moreover, a mechanical coupling of the throttle means in the bypass line and the throttle valve is possible. The proposed method achieves the simultaneous adjustment of air intake flow and secondary air flow with reasonable design expense and therefore constitutes an economical solution.