Abstract: This reservoir tank has a tank body, an inflow pipe, a discharge pipe, and a filler port of cooling fluid in the tank body. The tank body has a first chamber and a second chamber, the filler port is provided to fill the second chamber with the cooling fluid, and an upper limit mark and a lower limit mark are displayed on the tank body. The first chamber and the second chamber communicate with each other through a lower communication path at a portion lower than the lower limit mark. Further, the upper communication path communicates a portion of the first chamber higher than the upper limit mark and a portion of the second chamber below the upper limit mark.

Abstract: An air cleaner includes a case having an internal space, a filter element capable of partitioning the internal space into a first space and a second space, an intake port that introduces an air into the first space therethrough, an exhaust port that discharges an air from the second space, and at least one baffle part projecting toward the filter element from an inner surface of the case. The baffle part diffuses the air introduced into the first space and introduces the air to the filter element. The baffle part includes a widened baffle part. The widened baffle part includes a guide section extending along an extending surface of the filter element and a widened section larger in width than the guide section.

Abstract: Provided is a reservoir tank which includes: a tank body that stores cooling fluid; an inflow pipe configured to feed the cooling fluid into the tank body; a discharge pipe configured to discharge the cooling fluid from the tank body; a columnar member erected inside the tank body; and a guide member provided inside the tank body, in which the inflow pipe is connected to the tank body at a position vertically below a liquid level of the cooling fluid stored inside the tank body, the guide member is configured to guide a flow of the cooling fluid flowing from the inflow pipe into the tank body, the flow being guided into a substantially horizontal direction toward the columnar member, the columnar member extends in a substantially vertical direction when viewed along the flow of the cooling fluid toward the columnar member, and a part of the columnar member is disposed on an extension line of the flow of the cooling fluid toward the columnar member.

Abstract: This reservoir tank has a tank body, an inflow pipe, a discharge pipe, and a filler port of cooling fluid in the tank body. The tank body has a first chamber and a second chamber, the filler port is provided to fill the second chamber with the cooling fluid, and an upper limit mark and a lower limit mark are displayed on the tank body. The first chamber and the second chamber communicate with each other through a lower communication path at a portion lower than the lower limit mark. Further, the upper communication path communicates a portion of the first chamber higher than the upper limit mark and a portion of the second chamber below the upper limit mark.

Abstract: A rectification structural body includes an inlet port into which air from an air cleaner flows, an outlet port from which air flows out toward an airflow sensor, and a chamber provided between the inlet port and the outlet port. The inlet port and the outlet port are provided in such directions and at such positions that an air flow is bent in the chamber. The chamber includes two cases of a first case and a second case, the chamber being divided into the two cases.

Abstract: A reservoir tank includes: a tank body in which cooling fluid is stored; an inflow pipe for sending the cooling fluid into the tank body; a discharge pipe for discharging the cooling fluid from the tank body; and a columnar member erected inside the tank body, in which the inflow pipe is connected to the tank body vertically below a liquid level of the cooling fluid stored inside the tank body, the columnar member extends in a substantially vertical direction when viewed along a center line of the inflow pipe, and a part of the columnar member is disposed on an extension line of the center line of the inflow pipe.

Abstract: Provided is a reservoir tank which includes: a tank body that stores cooling fluid; an inflow pipe configured to feed the cooling fluid into the tank body; a discharge pipe configured to discharge the cooling fluid from the tank body; a columnar member erected inside the tank body; and a guide member provided inside the tank body, in which the inflow pipe is connected to the tank body at a position vertically below a liquid level of the cooling fluid stored inside the tank body, the guide member is configured to guide a flow of the cooling fluid flowing from the inflow pipe into the tank body, the flow being guided into a substantially horizontal direction toward the columnar member, the columnar member extends in a substantially vertical direction when viewed along the flow of the cooling fluid toward the columnar member, and a part of the columnar member is disposed on an extension line of the flow of the cooling fluid toward the columnar member.

Abstract: A rectification structural body includes a pipe line configured such that air flows from an air cleaner to an airflow sensor. The pipe line has a portion bent in an arc shape. In the pipe line, an air guide plate dividing an internal space of the pipe line into an inner portion and an outer portion of the arc is provided substantially parallel with the center line of the pipe line. The air guide plate includes two ribs. The two ribs are each in an arc shape. The two ribs stand, inside the pipe line, facing each other to extend toward each other. End edges of the two ribs are separated from each other in a rib standing direction by 0.5 to 5 mm at least on an airflow sensor side of the pipe line.

Abstract: An air cleaner includes a case having an internal space, a filter element capable of partitioning the internal space into a first space and a second space, an intake port that introduces an air into the first space therethrough, an exhaust port that discharges an air from the second space, and at least one baffle part projecting toward the filter element from an inner surface of the case. The baffle part diffuses the air introduced into the first space and introduces the air to the filter element. The baffle part includes a widened baffle part. The widened baffle part includes a guide section extending along an extending surface of the filter element and a widened section larger in width than the guide section.

Abstract: An air cleaner includes a case having an internal space, a filter element capable of partitioning the internal space into first and second spaces, an intake port that introduces an air into the first space therethrough, an exhaust port that discharges an air from the second space, and at least one baffle part projecting toward the filter element from an inner surface of the case. The baffle part diffuses the air introduced into the first space and introduces the air to the filter element. The baffle part includes a first baffle part extending along an extending surface of the filter element. The first baffle part is curved so as to be away from a hypothetical straight line connecting the intake port and the exhaust port as the first baffle part extends from the intake port toward the exhaust port as viewed in a direction perpendicular to the extending surface.

Abstract: A reservoir tank includes: a tank chamber for storing a cooling fluid; a gas-liquid separation chamber provided adjacently below the tank chamber in a vertical direction; a partition wall for partitioning the tank chamber and the gas-liquid separation chamber; an inflow pipe for sending the cooling fluid into the reservoir tank; and a discharge pipe for discharging the cooling fluid from the reservoir tank.

Abstract: A reservoir tank includes: a tank chamber for storing a cooling fluid; a gas-liquid separation chamber provided adjacently below the tank chamber in a vertical direction; a partition wall for partitioning the tank chamber and the gas-liquid separation chamber; an inflow pipe for sending the cooling fluid into the reservoir tank; and a discharge pipe for discharging the cooling fluid from the reservoir tank.

Abstract: A rectification structural body includes a pipe line configured such that air flows from an air cleaner to an airflow sensor. The pipe line has a portion bent in an arc shape. In the pipe line, an air guide plate dividing an internal space of the pipe line into an inner portion and an outer portion of the arc is provided substantially parallel with the center line of the pipe line. The air guide plate includes two ribs. The two ribs are each in an arc shape. The two ribs stand, inside the pipe line, facing each other to extend toward each other. End edges of the two ribs are separated from each other in a rib standing direction by 0.5 to 5 mm at least on an airflow sensor side of the pipe line.

Abstract: A rectification structural body includes an inlet port into which air from an air cleaner flows, an outlet port from which air flows out toward an airflow sensor, and a chamber provided between the inlet port and the outlet port. The inlet port and the outlet port are provided in such directions and at such positions that an air flow is bent in the chamber. The chamber includes two cases of a first case and a second case, the chamber being divided into the two cases.

Abstract: An air delivery system includes a drain valve. The drain valve includes a flexible valve body, and a base portion. The valve body includes a valve main portion having a substantially disk-like and conical surface-like shape. The base portion includes a drain hole, and a ring-like region on a surface of the base portion. The ring-like region has a diameter which is smaller than a diameter of the valve main portion, and surrounds the drain hole. The valve body is fitted to the base portion such that the valve main portion covers the drain hole. When the drain valve is closed, the base portion abuts against the valve main portion at the ring-like region, and a peripheral portion, of the valve main portion, which is located in the outer periphery portion than the ring-like region, is spaced apart from the surface of the base portion.