Abstract: A supercharger-equipped combustion engine includes a crankcase supporting a crankshaft extending in a widthwise direction of a vehicle, and a cylinder block disposed above the crankcase. A supercharger is disposed above the crankcase and rearward of the cylinder block and driven by power of the crankshaft. The power of the crankshaft is transmitted to the supercharger through a counter shaft which rotatably supports a counter gear. The counter shaft extends parallel with the crankshaft, and a starter gear is arranged on the counter shaft so as to be aligned in the widthwise direction. The counter shaft is disposed rearward of the crankshaft, and the supercharger is disposed rearward of the counter shaft. A starter motor meshing with the starter gear is disposed frontward of the supercharger.

Abstract: An overrun air recirculation valve 1 of an exhaust-gas turbocharger compressor 2, having a valve housing 3 which has an interior 4, having a diaphragm 5 which is guided in the interior 4 and which has an edge-side sealing means 6; and having a connecting means 7 provided on the valve housing 3, wherein the sealing means 6 is in the form of a sealing means which acts in the radial direction R of the diaphragm 5.

Abstract: An engine includes a variable valve mechanism capable of switching a valve characteristic to a first valve characteristic according to which at least one of an operation of pre-opening an intake valve during an exhaust stroke prior to a valve opening time in an intake stroke and an operation of re-opening an exhaust valve during the intake stroke subsequently to the opening/closing thereof during the exhaust stroke is performed, and to a second valve characteristic according to which neither the pre-opening of the intake valve nor the re-opening of the exhaust valve is performed. In the engine, when the valve characteristic is the first valve characteristic, if the presence of a request for switching to the second valve characteristic resulting from an increase in engine load is detected, a pressure reducing operation for reducing the pressure in an exhaust passage of the engine is performed.