752results about How to "Increase air flow" patented technology

A skirt panel is provided herein for interconnection to another abutted similar skirt panel for attachment beneath a lower, outer longitudinally-extending edge of a trailer including a rear wheel assembly of a tractor-trailer rig, thereby to provide a continuous fairing extending downwardly from the trailer. The skirt panel includes a monolithic, generally-rectangular composite reinforced thermoplastic structure, having vertical lateral side edges configured and arranged for connection to associated vertical lateral side edges of abutting similar skirt panels. This provides a longitudinally-extending fairing for extending contiguously on each side of the trailer, a front face of the thermoplastic structure being provided with a plurality of longitudinally-extending, vertically-spaced-apart arcuate protrusions. The outer face of the thermoplastic panel preferably also is provided with dimples. The reinforcing comprising a panel secured to an inner face of the skirt panel and is provided with laterally-extending means whereby abutting skirt panels are secured to one another; whereby, when said fairing is secured to a lower portion of said trailer, the fairing extends downwardly from the trailer to from 60% to 80% of the distance to the road, so that a portion of any impinging air is directed laterally around the wheels of the rear wheel bogeys to reduce the aerodynamic drag of the trailer and of the wheel assembly.

A portable electric grill for that has utilizes an electric fan to draw smoke and cooking odors through a filter then redirects and circulates the cleaner hot air around food to create convection heating thereby improve and making faster the cooking process. The grill can be used for indoor or outdoor use. It has a removable lid that when in the down position it provides the circulation of the hot air throughout the grill. It has a removable grill plate that either sits on top of heating elements or has heating elements imbedded in the grill plate. The grill plate is used for searing various foods and then allowing the convection air to cook the foods throughout. It has controls for regulating temperature, cooking time and fan speed. It has a pull-out grease tray to catch and dispose of drippings from cooking food. The filter is removable for cleaning.

An LED lighting device comprises: a thermally conducting body having an at least one opening that connects with a cavity within the body and a plurality of LEDs mounted in thermal communication with a face of the body and positioned around the opening. One or more passages pass through the body from the cavity to an outer surface of the body and are configured such that in operation air moves through the cavity by thermal convection thereby to provide cooling of the body. Each passage is configured in a direction that extends in a direction at an angle of about 45° to a line that is parallel with the axis of the body toward the outer surface of the body away from the face. The body can be configured such that its outer surface has a form factor resembling an incandescent light bulb or halogen reflector lamp.

Aerodynamically efficient air flow management in axial flow-turbines is provided by utilizing a variable stagger and camber airfoil. In an exemplary embodiment of the invention, this is accomplished by providing a two-piece airfoil including a strut and a flap, each of which is mounted to articulate about a common, radially oriented axis. The strut and flap are respectively positioned by a strut gear and a flap gear, located at the radial end of the airfoil and, in an exemplary embodiment, are driven by a stepped synchronizing ring.

A more efficient cooling system for densely packed electronic components for use in an out-of-doors equipment enclosure. An array of cooling assemblies are placed on heat generating components mounted to printed circuit boards mounted in enclosure racks. Each board has a manifold for intake and exhaust of refrigerant, and larger rack manifolds are substituted for rails and are attached to a backplane. A hybrid package including a ceramic hybrid power module and an attached array of cooling assemblies provide even more density of components and improved cooling.

A laptop elevation device (1) that attaches to a bottom surface (13) of a laptop (12). Each laptop elevation device has a fold-up leg (2) pivotally or hingedly attached to a base (3). An arm (5) is pivotally attached to the base. When the laptop elevation device is in an open position, the arm may be folded downward to engage one of a plurality of holes (9) located on the leg, thereby locking the laptop elevation device at a desired height. The base may be built into a laptop or attached to the underside of an existing laptop using an attachment means (14). The leg may also have a layer of rubber (11) to prevent the leg from slipping while in use. A clip (11) located on the base locks the leg and arm in place while the laptop elevation device is in folded position. An additional feature of the laptop elevation device is one or more non-slip strips (20) that attach to the underside of a laptop to allow the front portion of the laptop to hang over the edge of a flat surface (22) while the laptop is in an elevated position. An alternative embodiment of the laptop elevation device provides a handle (17) for carrying the laptop computer.

A helmet that ventilates a user's head more efficiently. The relative movement of the helmet to air in the environment creates an airflow that enters intake openings designed to allow increased amounts of airflow into the helmet. The intake openings are positioned on an inclined plane near a user's forehead such that the intake openings extend upwardly and outwardly away from a user's eyes, thereby reducing the impact of a larger intake opening on the user's field of vision. Inside the intake openings, air is collected in a plenum and then guided into air channels leading into the head cavity. The air channels direct the airflow throughout the head cavity allowing the fresh air from the environment to exchange heat and perspiration from a user's head and are designed to inhibit obstruction of the air channels by the liner. Air channels also direct airflow to an exhaust such that the airflow can remove heat and perspiration from the helmet cavity and the helmet surface adjacent the exhaust is contoured to facilitate removal of air from the helmet. The liner is designed for easier installation and replacement.

A cooling door assembly includes a frame and a cooling door coupled to the frame. The cooling door includes one or more heat exchangers. The frame is configured to mount to the back of a server rack or other electronics enclosure in such a manner that the cooling door opens to allow access to the electronics servers within the server rack while maintaining a fluidic connection to an external cooling system. The frame is coupled to the external cooling system and the cooling door includes swivel joints configured to provide a fluid path between the cooling door and the frame. In this manner, the frame remains in a fixed position, while the cooling door is configured to rotate relative to the frame so as to open and close, while maintaining the fluid path through the swivel joint.

An outdoor equipment cabinet includes a housing with an equipment compartment therein. An intake air vent and an exit air vent are formed in the housing. A fan is mounted within the housing for pulling air into the intake air vent, moving an air stream through the equipment compartment, and pushing air out of the exit air vent. A membrane is disposed adjacent the intake air vent. The membrane allows air to pass therethrough, but resists the passage of water and contaminants therethrough. In some embodiments, a baffling plate is disposed to direct the air stream within the equipment compartment, and / or the fan speed is controlled by a temperature sensor, and / or a clogging of the membrane is monitored and reported, and / or the intake air vent is located in a first door and the exit air vent is located in a second door of the cabinet.

A heat sink for an LED downlight utilizes tilted fins forming helical air passages that can enhance thermal performance by 30% over conventional fins. To overcome the thermal challenge of installation within the stagnant hot air of insulated ceiling cans, a heat sink has an integral electrostatic air pump on its exterior, to move hot air downwards and drain the stagnant air from the can by establishing a chimney-like circulation up through the heat sink and back down around the outside of the heat sink. The air mover can be powered by a compact high-voltage, low-current power supply similar to those of neon signs. An embodiment of the heat sink is also revealed that is suitable for cooling an LED replacement for standard screw-in or equivalent light bulbs. This device can perform well in variety of orientations (horizontal, vertical, etc.) and fixtures.

A soffit vent comprising a unitary bottom panel with extending side walls, one or more interior walls extending from the bottom panel, a one or more open channels created by the side walls, interior walls and bottom panel and one or more closed channels adjacent to the open channels.

Baffled attic vents and methods of their use and manufacture are provided. The baffled air vent of this invention includes an elongated member having a roof facing side and an attic space facing side, a pair of longitudinal side portions, first and second transverse ends, and at least one central panel portion. The vent defines at least one channel on the roof facing side thereof, for directing ventilated air. The channel includes a bottom portion having an integral baffled surface thereon. The vent further has an installed, convective air flow reading, under a 5 Pa air pressure differential, of at least about 95 CFM. Further embodiments contain separation means for permitting the attic vent to be separated by hand in a transverse or longitudinal direction.

A Roots supercharger has an extended cavity with 103 mm diameter rotors having chambers defined by interleaved helical lobes with equal angular face offsets exceeding 60 degrees from inlet to outlet end faces angled in directions opposite to directions of rotor rotation. The chambers have angular seal times of less than 67 degrees of rotation. A preferred embodiment has a displacement of 122 cu mm / revolution, rotor length of 208 mm, face offsets of 65.3 degrees and seal time of 58.6 degrees. The rotor lobe helix angle is essentially 0.314 deg / mm, equal to the helix angle of a prior art supercharger with rotors of common diameter, displacement of 112 cubic inch / revolution, rotor length of 191 mm, previously considered maximum, 60 degree face offset, previously considered optimum, and seal time of 67 degrees. Both flow volumes and efficiency of the new configuration are improved from the prior art wherein the 60 degree face offset was considered optimum.

A disposable face shield with a shield with a plurality of cuts is described. A foam member is connected to the shield to provide added comfort. The foam member may contain a plurality of openings extending through the member. The openings allow for increased air movement around the shield. The cuts in the shield may be above the foam member to create tabs which may be bent to at least partially cover the openings that extend through the foam member. Additionally, a pair of parallel cuts may be made on either side of the shield, the cuts adjustably engaging an elastic strap. This configuration allows the elastic strap to be comfortably adjusted to conform to a number of different sized heads.

The present invention is a method and device for pressure offloading in order to alleviate or diminish pressure on an area of bony prominence, a blemish, wound, decubitus ulcer (also known as pressure ulcer or pressure sore) or surgical site by elevating the affected area above a surface without directly contacting the affected area. An interior filling of the present invention is composed of a Visco / Memory foam, natural buckwheat hulls, whole buckwheat seeds, millet hulls, water, gel, silicone, Styrofoam beads, a combination thereof, or other suitable material known in the art. The interior filling is enclosed in a hollow member, and an additional removable and / or reusable cover composed of anti-bacterial / anti-microbial fabric, encloses the hollow member for additional protection. Fastening means are attached to the cover to allow the user to reconfigure the shape of the device to provide the required support as needed for each use.