| 摘要 |
The electrohydraulically operated valve control system cooperates with a piston and cylinder in an internal combustion engine. The valve control system includes an intake port, coupled to the cylinder, having an intake valve operatively associated, with the intake valve selectively closable before and after piston bottom dead centre and an exhaust valve operatively associated. The valve control system further includes a heat exchanger having a heat exchange mechanism, an exhaust gas inlet and an exhaust gas outlet. An intake air inlet and an intake air outlet are provided, with the exhaust inlet coupled to the exhaust port and coupled through the heat exchange mechanism to the exhaust outlet. The intake outlet is coupled to the intake port and is selectively coupled to an intake inlet through the heat exchange mechanism and around the heat exchange mechanism. The heat exchanger further selectively routes intake air through the heat exchange mechanism. The amount of intake inlet air that passes through the heat exchange mechanism is a function of the closing of the intake valve relative to the piston's bottom dead centre position. |
