Abstract: An engine crank pulley structure disposed at a vehicle front side of a longitudinal engine includes: a front pulley that transmits crank rotational force to the water pump via a belt; a rear pulley that is disposed at a vehicle rear side of the front pulley and transmits a crank rotational force to a compressor via a belt; and a connecting portion that connects the front pulley and the rear pulley, the connecting portion crushing and deforming in a vehicle front-rear direction as a collision load toward the vehicle rear side is applied to it. An outer diameter of the front pulley is smaller than an inner diameter of the rear pulley.

Abstract: An engine crank pulley structure disposed at a vehicle front side of a longitudinal engine includes: a front pulley that transmits crank rotational force to the water pump via a belt; a rear pulley that is disposed at a vehicle rear side of the front pulley and transmits a crank rotational force to a compressor via a belt; and a connecting portion that connects the front pulley and the rear pulley, the connecting portion crushing and deforming in a vehicle front-rear direction as a collision load toward the vehicle rear side is applied to it. An outer diameter of the front pulley is smaller than an inner diameter of the rear pulley.

Abstract: An intake and exhaust system of an engine mounted on a vehicle is provided, which includes an exhaust passage, an intake passage disposed above the exhaust passage in up-and-down directions of the vehicle, and an exhaust gas recirculation (EGR) passage extending in the up-and-down directions and communicating the exhaust passage to the intake passage, the EGR passage including an EGR cooler, an EGR valve disposed downstream of the EGR cooler in a flow direction of EGR gas, and a connecting passage, disposed between the EGR cooler and the EGR valve, that connects the EGR cooler to the EGR valve in a separated state from each other in the flow direction.