31 results about "Environmental air flow" patented technology

An assembly that facilitates the use of modules requiring orthogonal airflow in a chassis providing normal airflow. Partitions within the housing direct ambient airflow from the front air inlet, through the modules, and out the rear air exhaust. The housing and partitions define first and second vertically and horizontally offset slots for receiving first and second orthogonal airflow modules, and also define separate first and second airflow pathways. The first airflow pathway provides airflow through a front air inlet, under the second module, orthogonally through the first module and out the rear air exhaust. Similarly, the second airflow pathway provides airflow through a front air inlet, over the first module, orthogonally through the second module and out the rear air exhaust. Both airflow pathways both draw ambient air into the housing and exhaust warm air from the rear of the housing, while keeping the two airflow pathways separated.

A vehicle includes a body and an active air dam assembly. The body has a first end facing an ambient airflow and a second end facing away from the ambient airflow. The assembly is disposed at the first or second end and controls the ambient airflow between the body and a road surface. The assembly includes an adjustable flap, an actuator, sensors, and a controller. The flap shifts between different stowed and deployed positions. The actuator moves the flap, e.g., via a shaft. Each sensor measures a separate performance parameter of the actuator. The controller executes a method to receive the measured performance parameters, identify a fault mode of the air dam assembly from among different possible fault modes using the performance parameters, and execute a control action corresponding to the identified fault mode.

An apparatus and method for treating a moving substrate of indefinite length. The apparatus has a control surface positioned in close proximity to a surface of the substrate to define a control gap between the substrate and the control surface. A first chamber is positioned near the control surface, with the first chamber having a gas introduction device. A second chamber is positioned near the control surface, the second chamber having a gas withdrawal device. The control surface and the chambers together define a region wherein the adjacent gas phases possess an amount of mass. Upon inducement of at least a portion of the mass within the region, the mass flow is controlled to significantly reduce dilution of the gas phase component in the adjacent gas phase. This is accomplished through the introduction of a controlled gas stream thereby reducing the flow of an uncontrolled ambient gas stream due to pressure gradients in the system.

The adjustable air inlet for clothing is of particular value to those wearing heavy protective clothing in warmer conditions, such as motorcyclists wearing leather protective apparel. The adjustable air inlet is installed in a passage through the clothing where it may be aligned with ambient airflow, e.g., along the forearm, upper thigh, shoulder, or on the back of a glove or on a boot. Inner and outer flanges are installed along the edges of the hole, the outer flange securing a resilient scoop over the hole. A duct is preferably provided from the trailing end of the scoop within the clothing to an area of the body that is most benefitted by the airflow. The scoop is normally open, but may be closed by a latch extending from the forward part of the outer flange. A cooling insert may be installed within the scoop for additional comfort.

A particulate mass measuring device of the beta attenuation type featuring a sheath air plenum from which a radial sheath airflow pathway extends which is in fluid communication with an ambient air chamber. The radial sheath airflow from the radial sheath airflow pathway merges with an axial ambient airflow from the ambient air chamber deflecting particulate matter from surfaces of the ambient air chamber thereby increasing the accuracy of particulate mass measurements. The radial sheath airflow is particle free or substantially particle free. In other embodiments, the radial sheath airflow is used to deflect particulate matter in other particulate mass measuring devices, such as those that measure particulate mass in liquid and gas samples.

A vertical tail unit (7) for flow control including: an outer skin (13) in contact with an ambient air flow (21), wherein the outer skin (13) extends between a leading edge (23) and a trailing edge (25), and surrounds an interior space (29), and wherein the outer skin (13) includes a porous section (31) in the area of the leading edge (23), a pressure chamber (15) arranged in the interior space (29), wherein the pressure chamber (15) is fluidly connected to the porous section (31), an air inlet (17) provided in the outer skin (13), wherein the air inlet (17) is fluidly connected to the pressure chamber (15), wherein the air outlet (19) is fluidly connected to the pressure chamber (15). The vertical tail unit (7) has reduced drag and an increased efficiency because the air inlet (17) is formed as an opening (35) in the outer skin (13) at the leading edge (23).

A raincap precleaner is provided according to the present invention. The raincap precleaner includes a sleeve, a cover, and a precleaner assembly. The sleeve is constructed for mounting on an air intake stack and has an air intake flow region for delivering intake air to the air intake stack. The cover includes a top portion having an annular circumference and a depending flange portion extending from the annular circumference of the top portion. The cover is arranged relative to the sleeve to provide a precleaner area and a precleaned air chamber. The precleaner assembly is provided extending around a periphery of the sleeve and in the precleaner area so that environmental air flows through the precleaner assembly and into the precleaned air chamber, and from the precleaned air chamber into the air intake flow region. The precleaner assembly comprises a plurality of inertial separators. A method for precleaning air and a motor vehicle are provided.

The invention relates to a mobile high-temperature smoke and exhaust gas flow field control device. The control device is characterized of being of a cover body structure and comprising a flow field driving system and a heat energy flow guide system. A mobile high-temperature smoke and exhaust gas flow field control technology method comprises the following steps: enabling the flow field driving system and the heat energy flow guide system to synchronously work; keeping the flow field driving system in a negative pressure working state and keeping the heat energy flow guide system in a working state that the positive pressure is gradually reduced and the negative pressure is gradually raised; enabling environmental air flow to sequentially enter the flow field driving system; performing the positive pressure driving and the negative pressure guide driving of a smoke and exhaust gas purifying system to enable the air flow to flow into the surrounding areas of a sieve through a desulfurizer size water curtain; finally discharging the air flow into a coke tank of a coke quenching compartment for high-level desulphurization and dust removal. With the adoption of the device and technology method, the air volume of the smoke and exhaust gas purifying system can be greatly reduced, the solid and liquid particle pollution can be effectively controlled through the purifying system, and the practical significance of energy conservation, emission reduction and low operation cost is realized.

A vertical tail unit (7) including an outer skin (13) in contact with an ambient air flow (21), wherein the outer skin (13) extends between a leading edge (23) and a trailing edge (25) with opposite lateral sides (27a, 27b), and surrounds an interior space (29), and wherein the outer skin (13) has a porous section at the leading edge (23), a pressure chamber (15) arranged in the interior space (29), wherein the pressure chamber (15) is fluidly connected to the porous section (31), an air inlet (17) provided in the outer skin (13) and fluidly connected to the pressure chamber (15), and an air outlet (19) provided in the outer skin (13) and fluidly connected to the pressure chamber (15).

The invention discloses an environmental airflow energy collection device and method, and the device comprises an airflow excitation part which is used for generating edge sound, triggering air to enter a resonance state, and forming standing wave resonance; a transduction part which is connected with the airflow excitation part and used for generating vibration, and energy is collected and stored through an energy storage control circuit. Environmental airflow passes through the airflow excitation part to generate edge sound, triggers air flow to enter a resonance state and form standing wave resonance, the air flow performs periodic expansion and compression motion to cause the air flow to perform periodic oscillation, the energy conversion part is driven to generate vibration and form voltage, and energy collection and storage and power supply are realized through the energy storage control circuit. Therefore, the technical problems that the structure is complex, machining and manufacturing are difficult, and microminiaturization is difficult to achieve are solved.

A dehumidifier assembly includes an extraction chamber coupled in flow communication with a sample air inlet, a sample air outlet, and a sample drip opening. The extraction chamber is configured to receive a sample air flow therethrough at substantially atmospheric pressure from the sample air inlet to the sample air outlet. The dehumidifier assembly also includes a conduit positioned within the extraction chamber. The conduit is coupled in flow communication with an environmental air inlet and an environmental air outlet, and is sealed with respect to the extraction chamber. The dehumidifier assembly further includes a circulator coupled to the environmental air outlet. The circulator is operable to create a negative pressure in the conduit, such that an environmental air flow is drawn through the environmental air inlet into the conduit. The conduit is configured to facilitate heat transfer from the sample air flow to the environmental air flow.

A device in which an environmental air flow is monitored by a monitoring element and in which a natural gas flow is interrupted by a shut-off element on recognition of an insufficient environmental air flow. To allow a continuous operation of the fuel cell battery the monitoring element is short-circuited by a bridging device and that its operability can thus be checked without the environmental air flow having to be interrupted. This allows a permanent operation of the fuel cell battery.