A sound enclosure of a compressor to attenuate an operational sound level of the compressor is disclosed. The sound enclosure may be configured to generally enclose the compressor and attenuate radiantly emitted sound by the compressor. The sound enclosure may be configured to include a plurality of assembly sections, particularly two side sections and one bottom section, where the two side sections can be joined together like two halves of a clam shell and joined to the bottom section to facilitate easy assembly. The sound enclosure may form openings at longitudinal ends of the sound enclosure to accommodate refrigerant lines. The assembly sections of the sound enclosure may include one or more openings to accommodate a junction box, wire bundles, oil lines, mounting mechanisms, etc.

A vertical lighting vaneless inverter fan comprises a body, a blast system, an air supply column, a lighting device and a sound-reducing structure. The blast system is mounted in the inner chamber of body. The air supply column is installed on the top of body. The blast system supplies air to the air supply column, the airflow is jetted from the air supply column. The impeller is located above the motor. When the blast system is installed in the inner chamber of body case, the impeller corresponds to the bottom of air outlet, so that the wind can be delivered through the air outlet directly.

A containment case includes a fan assembly including a hub having a plurality of fan blades extending radially outward between radially inward blade roots and radially outward blade tips. Containment case includes a radially outer shell circumscribing fan assembly and having a first radially inner surface and a radially outer surface, an inner structure having a second radially inner surface extending along first radially inner surface, and a trench extending circumferentially along second radially inner surface into inner structure from second radially inner surface. The trench is approximately axially aligned with the fan assembly. The containment case also includes, within the trench, a trench filler layer configured to dissipate impact energy from a released fan blade and having a plurality of sheets including a fibrous composite material having a plurality of fibers fabricated within each sheet, where the sheets are coupled together into a repeating pattern of hollow units.

Examples are disclosed herein that relate to a ventilation system incorporated in a cooking apparatus. One example provides a cooking system including a body supporting a cooking surface, an air duct located within the body, and an air inlet disposed adjacent the cooking surface and in fluid communication with the air duct. The cooking system further comprises a fan disposed within the body and configured to pull exhaust from cooking through the air inlet and the air duct, a muffler configured to receive the exhaust from the fan, and an exhaust duct disposed within the body and connecting the fan to the muffler to carry the exhaust from the fan to the muffler, the exhaust duct having a curved configuration between an outlet of the fan and an inlet of the muffler.

Disclosed in the present invention is an electric tool, comprising: a housing, comprising a first opening; working equipment; a power apparatus, at least partially located in the housing and driving the working equipment; a surrounding structure, at least partially surrounding the power apparatus, the surrounding structure defining a second opening; and a blocking structure located between the first opening and the second opening.

A fan silencer module includes a housing having a first end of the housing, a second end of the housing, and an interior surface between the first end of the housing and the second end of the housing. Acoustic absorbing material is disposed on the interior surface. A honeycomb air flow director is disposed at the second end of the housing. And an electromagnetic interference gasket surrounds an outer edge of the honeycomb air flow director. In an embodiment, a depth of the electromagnetic interference gasket is at least as deep as a depth of the honeycomb air flow director. Also provided is a handle, and a latch actuator, to enable removal and replacement of the fan silencer module and an associated fan module from a chassis.

A humidifier assembly is configured to humidify a pressurized flow of breathable gas from a flow generator of a CPAP unit and includes a base configured to be attached to the flow generator, the base including a recess portion. A water receptacle is configured to be received within the recess portion of the base and includes a floor and a flange around an opening at the top of the water receptacle. A lid is hingedly attached to the base and is configured to pivot between an open position and a closed position. This lid includes a top wall, an outer depending wall, an inner depending wall in the form of a double wall, and an outlet pipe. A lid seal is attached to an underside of the top wall of the lid by way of a tongue and groove structure. A catch is located on the base and configured to lock the lid in the closed position.

A method of fabricating a fan case for a gas turbine engine defines a metallic ring including an outer surface and an inner surface. A first composite material is assembled about the outer surface of the metallic ring. A second composite material is assembled about the first composite material. The first composite material and the second material are cured about the metallic ring within a tool to form a first subassembly. The first subassembly is removed from the tool. A fan case assembly for a gas turbine engine and a gas turbine engine are also disclosed.

The present invention relates to a laundry dryer (1) comprising a drum wherein the laundry to be dried is placed, a compressor (3) providing refrigerant cycle, an intake air fan assembly in communication with ambient air and blowing the same over the compressor (3) in order for limiting maximum operational temperature of said compressor (3). Said intake air fan assembly comprises a fan (5) and a fan cover (2) provided within a plastic frame (6) of the laundry dryer (1). The fan cover (2) functioning as an air exchange and noise attenuation structure in between outside environment and the fan (5).

A modular fan housing configured to hold an array of motors and fans is provided. The modular fan housing is configured for use in an air-handling system that delivers air to a ventilation system for at least a portion of a building. The fan housing comprises a plurality of modular units configured to be stacked adjacent to one another in at least one row or column to form an array. The modular units each include an interior surface and have a front end and a back end that define a chamber. The chambers are configured to receive the motors and fans. Sound attenuation layers extend along at least a portion of the interior surface of the corresponding chambers. The sound attenuation layers are positioned between at least some of the adjacent chambers.