An engine enclosure for containing a gas turbine engine is provided. An exemplary engine enclosure includes features that improve noise and thermal attenuation, reduce the weight of the enclosure, and provide for more accessible access points to the interior volume of the engine enclosure.

A flexible and rotatable coupling assembly for a feeder conveyor of a combine harvester, for example. The coupling assembly connects a first rotatable shaft to a second rotatable shaft. The coupling assembly includes a spherical bearing that is connectable to the first rotatable shaft for accommodating a radial or angular misalignment between the first and second rotatable shafts; and a flexible and rotatable coupler that is non-rotatably connectable to the first and second rotatable shafts for transferring rotation between the first and second rotatable shafts. The flexible and rotatable coupler is either directly or indirectly connected to the spherical bearing. The flexible and rotatable coupler has a flexible component for accommodating the radial or angular misalignment.

A system and method dampen sound. In one embodiment, the system is a damping system that has a first damper. The damping system also has a second damper. In addition, the damping system has a false ceiling bracket. Moreover, the damping system has an assembly bushing. The damping system also has a positioning ring.

An outboard motor includes an outboard motor main body including an engine and a propeller driven by the engine, an upper bracket to attach the outboard motor main body to a hull, and a pair of antivibration mounts. The pair of antivibration mounts are joined to the upper bracket, and sandwich and elastically support a portion of the outboard motor main body from the left and the right of the outboard motor main body. The pair of antivibration mounts are arranged side by side in the left-right direction so that a center of rolling of the outboard motor main body is located between the pair of antivibration mounts in the left-right direction, and are bilaterally asymmetrical to each other.

A support structure for rotating machinery is provided. The support structure may include a first main hollow support member and a second main hollow support member, each having a longitudinal axis and a square cross-section. The second main hollow support member may be coupled with the first main hollow support member such that the longitudinal axis of the second main hollow support member is substantially perpendicular to the longitudinal axis of the first main hollow support member. The support structure may also include a plurality of secondary support members, each coupled with the first main hollow support member, the second main hollow support member, or the first main hollow support member and the second main hollow support member, and configured to support the rotating machinery disposed on the support structure.

Upper anti-vibration mounts have axial lines arranged in parallel to a longitudinal center line extending in a longitudinal direction of the outboard motor body. Lower anti-vibration mounts have axial lines concentrated on one point on the longitudinal center line extending in a longitudinal direction of the outboard motor body. Meanwhile, the axial lines are inclined at the identical angle symmetrically with respect to the longitudinal center line, so that they intersect in a V-shape in front of the support shaft as seen in a plan view of the outboard motor body.

A marine vessel includes a hull assembly, and the hull assembly includes a deck assembly, a first battery assembly, a second battery assembly and an electric motor assembly. The deck assembly is contained within the hull assembly. The first battery assembly is located completely under the deck assembly. The second battery assembly is located completely under the deck assembly and is physically separate from the first battery assembly. The electric motor assembly receives electric power from the first battery assembly and the second battery assembly to propel the hull assembly through water during operation.

In an upper mount portion, a steering central axis related to a steering force of a steering handle and a vibration central axis related to a torque reaction force of an engine are configured to be shifted back and forth. A mount member is formed such that a spring constant related to the vibration central axis is smaller than a spring constant related to the steering central axis.

In an upper mount portion, a steering central axis related to a steering force of a steering handle and a vibration central axis related to a torque reaction force of an engine are configured to be shifted back and forth. Amount member is formed such that a spring constant related to the vibration central axis is smaller than a spring constant related to the steering central axis.

An outboard marine propulsion assembly includes a marine drive having a supporting frame and a steering arm extending from the supporting frame, a transom bracket assembly, a swivel member seated in the transom bracket assembly, the swivel member being configured so that rotation of the steering arm relative to the transom bracket assembly rotates the swivel member relative to the transom bracket assembly to thereby steer the marine drive, an upper vibration isolating joint which couples the steering arm to the supporting frame, and a lower vibration isolating joint which couples the swivel member to the supporting frame.