756results about How to "Increase air flow" patented technology

An electrophoretic medium (100) comprises at least one type of particle (108) suspended in a suspending fluid (106) and capable of moving therethrough on application of an electric field to the medium, the particles (108) including at least one electrophoretically mobile specularly reflective particle.

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 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.

A method of calculating sensible cooling capacity of a cooling unit includes obtaining compressor capacity, subtracting compressor heat loss from the compressor capacity, subtracting latent cooling capacity from compressor capacity, and subtracting fan power loss from the compressor capacity. Methods of controlling a cooling unit and embodiments of a cooling unit are further disclosed.

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 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.

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.

A lighting fixture utilizing LED light sources for illumination of commercial, outdoor and other large area applications incorporates efficient heat dissipation and improved convective air flow. An integrated heat transfer assembly is disclosed that is configured to enhance heat dissipation by providing an efficient thermal conductive pathway for radiation of heat to an external environment. The lighting fixture body is configured with a lens body and heat sink having a chimney tube with internally facing finned heat sink arrangement for providing enhanced convective air flow through the light fixture body. When the heat sink transfers heat from the LED light sources during operation so as to create heated air surrounding the heat sink, ambient air is drawn through the chimney and the heated air is exhausted through air gaps so as to create a conductive air current with the environment. The heat sink fins are configured to enhance the natural air draw through the chimney by tapering the surface areas of the fins.

Provided is an air conditioner, which is constituted such that a plurality of left and right blades disposed at the blowout ports of an indoor equipment can be controlled independently for a plurality of blocks, and such that the area to be air-conditioned is divided into a plurality of areas by a plurality of human body sensors, and which is equipped with a control device for controlling the left and right blades independently for the individual blocks in accordance with the reaction results of the human body sensors. On the basis of at least one of the area characteristics indicating the frequency, which is decided by accumulating the reaction results of the human body sensors a predetermined number of times and which indicates the presence of a person in each of the areas, the personalactivity in the personal presence area, and the adjacency of the personal absence area to the personal presence area, the control device can control the left and right blades thereby to change the opening ratio of the blowout ports to the plural areas.

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 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 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.

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 fan has an impeller, a motor and a frame. The impeller and the motor are disposed within the frame, and the motor is connected to the impeller and drives the impeller to rotate. The impeller includes a hub and an odd number of blade sets. The blade sets are disposed around the circumference of the hub. Bach blade set has a plurality of the blades, and the blades of each blade set can be the same or not. For example, the blades in each of the blade sets have different tilting angles, heights and / or lengths while the blades are connected with the hub. Or the blades in each of the blade sets have different curvatures, arc lengths, thicknesses, or side-view shapes.

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 invention relates to an internal combustion engine with direct fuel injection comprising at least two adjacent inlet valves (1) per cylinder, a number of outlet valves (2), an essentially coaxial spark plug (3), an injection valve (4) and a piston (5,5'). The aim of the inventive engine is to provide an improved mixture preparation which is characterized by low fuel consumption and low exhaust emissions. To this end, the injection valve (4) is arranged between two of the adjacent inlet valves (1) and the section of the cylinder wall adjacent to said inlet valves (1). in addition, the piston (5,5') has a longitudinally extended combustion chamber cavity (6), whereby the combustion chamber cavity (6) essentially extends along the front surface of the piston (5,5') in the direction of the vertical projection of an injection stream (E) exiting from the injection valve (4). Said cavity also comprises a step (7) which essentially runs in a transversal direction.

A sawdust collection hood for a table saw. The hood has an identical pair of vertical, spaced-apart side panels, an upper cowl mounted between the side panels, a canted nose panel mounted between front portions of the side panels, and a lower cowl that extends rearwardly between the side panels below the upper cowl from a forward edge of the lower cowl disposed over a trailing edge of the nose panel. A pair of side skirts suspended from each of the side panels, extend rearwardly from the nose panel, and are movable between a raised and a lowered position. When placed upon the saw work table, straddling the saw blade, and with side skirts lowered, a work piece moved rearward against the canted nose panel causes the hood to rise. As the work piece progresses rearwardly past the saw blade, the side skirts remain lowered, resting on the work piece, until the work piece just clears the nose panel, whereupon the hood drops down to the work table, raising the skirts relative to the nose panel and closing a gap that would otherwise permit sawdust to escape below the front of the hood. The hood may be pivotally attached to a table saw splitter or, alternatively, may be pivotally attached by a collar joint to an overhead vacuum conduit assembly.

An evaporator includes plural refrigerant flow members and corrugate fins disposed in corresponding air-passing clearances between the adjacent refrigerant flow members. Each refrigerant flow member includes plural flat tubes arranged in the front-rear direction. Each corrugate fin extends across all the flat tubes. A vertically extending drain portion is formed between the flat tubes adjacent each other in the front-rear direction. At each connection portion of the corrugate fin, a louver group including plural louvers inclining downward toward the front is provided to correspond to a front portion of each flat tube. At least the front-end louver of the louver group provided to correspond to the front portion of each flat tube except for the flat tube at the front end is located in the drain portion. This evaporator exhibits excellent drainage of condensed water and enables high work efficiency in manufacture thereof.

An enclosure for a UAS includes a housing having a base and a plurality of sidewalls coupled to the base, a motive apparatus coupled to the housing, a platform coupled to the motive apparatus, and a plurality of lids pivotably coupled to the sidewalls and the platform. The platform and the plurality of lids move collectively under control of the motive apparatus (e.g., a linear actuator). Driving the motive apparatus in a first direction causes the platform to raise from a stowed position toward a deployed position and causes each of the plurality of lids to pivot from a closed position toward an open position. Conversely, driving the motive apparatus in a second direction opposite the first direction causes the platform to lower from the deployed position toward the stowed position and causes each of the plurality of lids to pivot from the open position toward the closed position.

The invention provides a variable valve lifting mechanism applied on an air intake system of an automobile engine and a control method thereof. The cams(24)of the variable valve lifting mechanism include a high-rotation speed cam(2)and a low-rotation speed cam(11), and the high-rotation speed cam(2) is arranged to be a structure with the lift range higher than the low-rotation speed cam(11). The control method of the variable valve lifting mechanism of the automobile engine is that ECU controls the opening and closing of an electromagnetic valve according to the setup parameter so as to control a T-shaped pin(23)to open or close by changing the oil pressure of the central oil hole of a rocker shaft, thus realizing that the high-rotation speed cam(2) and the low-rotation speed cam(11) respectively suit heavy load and light load. The variable valve lifting mechanism can be used to control a plurality of valves and when the engine is in different stages of high speed and low speed, the variable valve lifting mechanism can respectively control the work of different cams, thus improving fuel utilization ratio of the engine.

A filter assembly including a rectangular inlet frame having a rectangular inlet opening, a rectangular outlet frame, a housing body being collapsible to have a flattened shipping state and an erect state, the collapsible housing body in the erect state being rectangular and interposed between the rectangular inlet frame and the rectangular outlet frame in an assembled state, and at least one filter having filter media installed in the rectangular inlet opening in generally sealing relation thereto and projecting from the inlet frame toward the outlet frame in the assembled state.