Abstract: The present air cleaner includes: a cleaner case having a bottom wall, a circumferential side wall provided with an air inlet in its lower part, and a support wall formed on the bottom wall inside the circumferential side wall; and a cylindrical cleaner element supported on an upper end portion of the support wall. An air chamber is defined by the cleaner case, the support wall, and the cleaner element so as to surround the cleaner element and the support wall. A bottom of the cleaner element is inclined at an angle to the bottom wall of the cleaner case so that a distance between the bottom wall of the cleaner case and the bottom of the cleaner element increases from a side opposite to the air inlet toward an air inlet side.

Abstract: The present air cleaner for an engine of a vehicle, includes: a cleaner case; and a filter assembly disposed in the cleaner case. The filter assembly includes a cylindrical cleaner element, an element supporting member supporting a lower end of the cleaner element and an inner circumferential surface of the cleaner element so that the cleaner element is kept in a predetermined cylindrical shape, and a plate-shaped top cover detachably fastened on an upper surface of the element supporting member so as to press an upper end of the cleaner element downward.

Abstract: The present air intake device for a straddle-type vehicle, includes: an air cleaner case including an outer wall having an outer surface; and an air intake case of a fixed volume having an open end. The open end is disposed opposite to the outer surface of the outer wall so that a predetermined gap is formed between the open end of the air intake case and the outer surface of the outer wall. Thereby, an air intake chamber is formed in the air intake case and the gap forms an air intake inlet. The air intake chamber communicates with an air inlet of an apparatus mounted on the vehicle.

Abstract: The present air intake device for a straddle-type vehicle, includes: an air cleaner case including an outer wall having an outer surface; and an air intake case of a fixed volume having an open end. The open end is disposed opposite to the outer surface of the outer wall so that a predetermined gap is formed between the open end of the air intake case and the outer surface of the outer wall. Thereby, an air intake chamber is formed in the air intake case and the gap forms an air intake inlet. The air intake chamber communicates with an air inlet of an apparatus mounted on the vehicle.

Abstract: The present air cleaner for an engine of a vehicle, includes: a cleaner case; and a filter assembly disposed in the cleaner case. The filter assembly includes a cylindrical cleaner element, an element supporting member supporting a lower end of the cleaner element and an inner circumferential surface of the cleaner element so that the cleaner element is kept in a predetermined cylindrical shape, and a plate-shaped top cover detachably fastened on an upper surface of the element supporting member so as to press an upper end of the cleaner element downward.

Abstract: The present air cleaner includes: a cleaner case having a bottom wall, a circumferential side wall provided with an air inlet in its lower part, and a support wall formed on the bottom wall inside the circumferential side wall; and a cylindrical cleaner element supported on an upper end portion of the support wall. An air chamber is defined by the cleaner case, the support wall, and the cleaner element so as to surround the cleaner element and the support wall. A bottom of the cleaner element is inclined at an angle to the bottom wall of the cleaner case so that a distance between the bottom wall of the cleaner case and the bottom of the cleaner element increases from a side opposite to the air inlet toward an air inlet side.