A jet propelled watercraft includes a watercraft body, an engine housed in the watercraft body, a jet propulsion unit that suctions and jets water with a drive force of the engine, a first exhaust pipe connected to an exhaust port of the engine, and a catalyst storage connected to the first exhaust pipe, wherein the first exhaust pipe and the catalyst storage are integral and unitary with each other.

An engine includes an exhaust-gas purification device. The exhaust-gas purification device purifies exhaust gas. The exhaust-gas purification device includes electrical components. The electrical components detect the states of the exhaust-gas purification device. The engine includes a cooling-water circulation mechanism for circulating cooling water for the engine. Further, a portion of the cooling water circulated by the cooling-water circulation mechanism cools the electrical components.

An internal combustion engine, includes: an engine main body; a structural member disposed around the engine main body; a bracket including a support plate and a plurality of leg pieces depending from the support plate and connected to the structural member; a turbocharger including a turbine and a compressor, the turbine being connected to a side of the support plate opposite to the structural member; an exhaust pipe connected to a central part of the turbine and extending in a direction away from the compressor; and an engine auxiliary disposed between the structural member and the support plate, wherein the leg pieces are arranged unevenly to provide a higher heat shielding performance on a side of the exhaust pipe than on a side of the compressor with respect to the support plate.

A vehicle exhaust system includes a first component that receives exhaust gas output from an engine and a second component that is fluidly coupled to the first component to define an upstream portion of a vehicle exhaust system. A vehicle frame member includes an internal acoustic volume. A pipe connects the internal acoustic volume in parallel to the upstream portion of the vehicle exhaust system.

An exhaust system including: an exhaust pipe including a straight portion, and a bent portion that is bent and extends from a downstream end of the straight portion; a muffler provided on a downstream side of the exhaust pipe; and a reinforcing member, wherein: the straight portion of the exhaust pipe is connected with an upstream end of the muffler through the bent portion; and the reinforcing member is provided so as to extend across a downstream end portion of the straight portion, and an upstream end portion of the muffler.

The present disclosure relates to a vehicle exhaust assembly (1) for an internal combustion engine. The vehicle exhaust assembly (1) comprises an exhaust system (3) and an exhaust mounting assembly (4) for mounting the exhaust system (3) to a vehicle (2). The exhaust system (3) comprises an inlet section (5) for connection to the internal combustion engine; an intermediate section (6) connected to the inlet section (5); an outlet section (7) for exhausting gases from the internal combustion engine; and one or more exhaust decoupler (8) for decoupling the intermediate section (6) from the inlet section (5). The exhaust mounting assembly (4) comprises one or more first isolator device (20-1, 20-2) for resiliently constraining movement of the intermediate section (6) of the exhaust system (3) in a longitudinal direction; and one or more second isolator device (20-3, 20-4) for resiliently constraining movement of the outlet section (7) of the vehicle (2) exhaust in a transverse direction. The present disclosure also relates to a vehicle (2) including a vehicle exhaust assembly (1).

A work machine where a plurality of exhaust treatment devices can appropriately be arranged is provided. The work machine includes an engine (7), a first exhaust treatment device (12) that treats exhaust emitted from the engine (7), and a second exhaust treatment device (14) that treats exhaust that has passed through the first exhaust treatment device (12). A longitudinal direction of the first exhaust treatment device (12) is inclined with respect to a fore/aft direction (X) and a lateral direction (Y) and inclined with respect to a longitudinal direction of the second exhaust treatment device (14).

A work vehicle includes a hood, an engine, a radiator, an air cleaner, and a condenser. The hood covers an engine compartment located on a front portion of a traveling body. The engine is a drive source. The radiator supplies a coolant to the engine. The air cleaner takes in outside air and supplies the air to the engine. The condenser cools a refrigerant. In front of the radiator, the air cleaner and the condenser are disposed one above the other. The condenser is withdrawable in the left and right direction.

A vehicle exhaust device includes a muffler body that has an interior space divided into a plurality of expansion chambers by a partition wall, and an exhaust control valve that switches an exhaust passage in the muffler body. The exhaust passage includes a first exhaust passage and a second exhaust passage. The first exhaust passage connects an upstream end and a downstream end of the muffler body straight. The second exhaust passage passes through the plurality of expansion chambers via a connecting pipe that connects the plurality of expansion chambers. A center of the first exhaust passage is located above a center of the muffler body in a vehicle upper-lower direction, and the second exhaust passage is located below the first exhaust passage.

A multi-stage reconfigurable air intake and exhaust system for an internal combustion piston engine having a first row of at least two cylinders inclined relative to a vertical plane, a second row of at least two cylinders inclined relative to the vertical plane, and the two rows of cylinders form a V configuration with the vertical plane being approximately equidistant between the two rows. The system comprises a Stage 1 package and a Stage 2 package. The Stage 1 package includes a first exhaust manifold adapted to be secured to the first row of cylinders for receiving and collecting in a plenum exhaust gases from the first row of cylinders, where the first exhaust manifold includes a first exhaust gas discharge aperture for discharging exhaust gases, the first exhaust gas discharge aperture is located at a first fixed spatial position when the first exhaust manifold is secured to the first row of cylinders, and there is provided first connecting means proximate the first exhaust gas aperture. The Stage 1 package additionally includes a second exhaust manifold adapted to be secured to the second row of cylinders for receiving and collecting in a plenum exhaust gases from the second row of cylinders, where the second exhaust manifold includes a second exhaust gas discharge aperture for discharging exhaust gases, the second exhaust gas discharge aperture is located at a second fixed spatial position when the second exhaust manifold is secured to the first row of cylinders, and there is provided second connecting means proximate the second exhaust gas aperture. The Stage 2 package includes a first turbo exhaust manifold adapted to be secured to the first row of cylinders for receiving and collecting in a plenum exhaust gases from at least from the first row of cylinders, where the first turbo exhaust manifold includes a first turbocharger connection aperture adapted for mounting a turbocharger and for delivering to the turbocharger exhaust gases from either the first row of cylinders or the first row of cylinders and the second row of cylinders, a first exhaust gas passage aperture and third connecting means proximate the first exhaust gas passage aperture, the first turbo exhaust manifold being dimensioned so that the first exhaust gas passage aperture is located at about the first fixed spatial position when the first turbo exhaust manifold is secured to the first row of cylinders in lieu of the first exhaust manifold, and a crossover pipe assembly having a second exhaust gas passage aperture and fourth connecting means proximate the second exhaust gas passage aperture, and having a third exhaust gas passage aperture and fifth connecting means proximate th