Abstract: An exhaust pipe structure includes an exhaust pipe, a branching portion including an inflow port, a first flow path, a second flow path, a first discharge port, and a second discharge port, a first muffler, a first pipe, a second muffler, and a second pipe. The second flow path is lower in position in an up-down direction of a vehicle than the first flow path at a downstream side part of the second flow path including at least a portion of the second discharge port. The second pipe is lower in position in the up-down direction of the vehicle at an upstream side part connected to the second discharge port than an upstream side part of the first pipe connected to the first discharge port.

Abstract: A bottom cover includes a plate portion including an inner-peripheral-edge portion defining an inlet, and a cooling duct including an upper wall and a pair of right and left sidewalls. The upper wall includes an upper-wall front portion inclined upward in the vehicle-height direction at a predetermined inclination angle, an upper-wall rear portion inclined upward in the vehicle-height direction at an inclination angle larger than the predetermined inclination angle of the upper-wall front portion, and the first upper-wall bent portion located at a boundary between the upper-wall front portion and the upper-wall rear portion. The rear ends of the right and left sidewalls, the rear end of the inner-peripheral-edge portion, and the rear end of the upper wall define an outlet.

Abstract: A bottom cover includes a plate portion including an inner-peripheral-edge portion defining an inlet, and a cooling duct including an upper wall and a pair of right and left sidewalls. The upper wall includes an upper-wall front portion inclined upward in the vehicle-height direction at a predetermined inclination angle, an upper-wall rear portion inclined upward in the vehicle-height direction at an inclination angle larger than the predetermined inclination angle of the upper-wall front portion, and the first upper-wall bent portion located at a boundary between the upper-wall front portion and the upper-wall rear portion. The rear ends of the right and left sidewalls, the rear end of the inner-peripheral-edge portion, and the rear end of the upper wall define an outlet.

Abstract: An exhaust pipe structure includes an exhaust pipe, a branching portion including an inflow port, a first flow path, a second flow path, a first discharge port, and a second discharge port, a first muffler, a first pipe, a second muffler, and a second pipe. The second flow path is lower in position in an up-down direction of a vehicle than the first flow path at a downstream side part of the second flow path including at least a portion of the second discharge port. The second pipe is lower in position in the up-down direction of the vehicle at an upstream side part connected to the second discharge port than an upstream side part of the first pipe connected to the first discharge port.

Abstract: There provided a vehicle lower structure including: an exhaust pipe which is disposed below a floor panel of a vehicle and in which an exhaust gas from an engine flows; an undercover that covers the exhaust pipe from below; and an inflow port that allows running air to flow into between the exhaust pipe and the undercover.

Abstract: An exhaust pipe structure has: an exhaust pipe through which exhaust from an engine flows; a communicating portion that is formed in a lower surface side of the exhaust pipe further toward a downstream side, in a direction of flow of the exhaust, than a catalyst device provided at the exhaust pipe, and that communicates an interior and an exterior of the exhaust pipe; and a porous body that is disposed at the communicating portion and that leads moisture, which is at the interior of the exhaust pipe, to the exterior of the exhaust pipe by capillary action.

Abstract: A spherical annular seal member 39 includes a spherical annular base member 37 defined by annular end faces 35 and 36, and an outer layer 38 formed integrally on the spherical annular base member 37. The spherical annular base member 37 includes a reinforcing member 5 made from a metal wire net and a heat-resistant material 6 containing compressed expanded graphite. The outer layer 38 is comprised of a base layer 46 which includes a reinforcing member 15 made from a metal wire net and compressed and a heat-resistant material 14 containing expanded graphite, compressed in such a manner as to fill meshes of the metal wire net of the reinforcing member 15, and having a surface 52 which forms an outer-layer intermediate layer surface 42 together with the surface 41 of the reinforcing member 15, and of a heated sliding layer 40 of a molten fluororesin composition formed on the base layer 46 at the outer-layer intermediate layer surface 42.

Abstract: A spherical annular seal member 39 includes a spherical annular base member 37 defined by annular end faces 35 and 36, and an outer layer 38 formed integrally on the spherical annular base member 37. The spherical annular base member 37 includes a reinforcing member 5 made from a metal wire net and a heat-resistant material 6 containing compressed expanded graphite. The outer layer 38 is comprised of a base layer 46 which includes a reinforcing member 15 made from a metal wire net and compressed and a heat-resistant material 14 containing expanded graphite, compressed in such a manner as to fill meshes of the metal wire net of the reinforcing member 15, and having a surface 52 which forms an outer-layer intermediate layer surface 42 together with the surface 41 of the reinforcing member 15, and of a heated sliding layer 40 of a molten fluororesin composition formed on the base layer 46 at the outer-layer intermediate layer surface 42.