摘要:
The present invention relates to a heat exchanger (1) configured to cool an air flow with a coolant liquid, comprising a heat core (2) comprising a plurality of air flow channels (4) defining liquid passes (24, 26, 28, 30) in between at least two air flow channels (4), said heat core (2) comprising a plurality of plates (12, 14, 16, 18) enveloping the air flow channels (4) and the liquid passes (24, 26, 28, 30), the heat exchanger (1) being characterised in that at least one of the plates (12) has at least a first projection defining a liquid chamber (36) and at least a second projection defining a corridor (46) connected to the liquid chamber (36) and configured for the circulation of the coolant liquid.
摘要:
In the present invention, an internal combustion engine is provided with an in-cylinder fuel injection valve and a secondary air supply device and is formed so as to make possible first catalyst warming control and second catalyst warming control that promote the raising of the temperature of an exhaust gas purification catalyst. The first catalyst warming control comprises control to inject fuel from the in-cylinder fuel injection valve during the compression stroke to form a stratified state, and control to greatly delay ignition timing. The second catalyst warming control comprises control to supply secondary air to an engine exhaust gas passage. The internal combustion engine executes the first catalyst warming control after startup and, after the first catalyst warming control is executed, carries out control (third catalyst warming control) to execute the first catalyst warming control and the second catalyst warming control simultaneously.