101 results about "Active ventilation" patented technology

The invention relates to an article of footwear, in particular a sports shoe, wherein the article of footwear comprises a ventilation system with at least one active ventilation element arranged in a midfoot area of the article of footwear. Furthermore, the article of footwear comprises at least one air channel with an inlet and an outlet which are arranged in the sole area in the interior of the article of footwear. The active ventilation element is arranged such that air is sucked from the interior of the article of footwear through the inlet and is blown into the interior of article of footwear shoe through the outlet.

A smart HVAC system adapted for selectively regulating fluid flow into a space generally includes an HVAC system including at least one active vent, a preferably variable blower fluidly coupled thereto, and at least one sensor associated with each vent, wherein the sensor is operable to cause the associated vent to shift between opened and closed conditions, and/or preferably the blower output to change, when an occupant is autonomously detected within at least a portion of the space.

A breathable seat cushioning device includes a seat body, a plurality of air conduits, an air permeable body, a fan module, and a heater. The seat body has a plurality of receiving grooves longitudinally arranged thereon. The air conduits have a plurality of air outlets arranged thereon. The air conduits are disposed in the receiving grooves. The air permeable body covers a surface of the seat body. The fan module is connected to the air conduits and has a casing and at least one blade pivotally coupled to the interior of the casing. The heater is arranged inside or outside the fan module. As a result, active ventilation is provided to prevent poor air permeability which can cause unpleasant seating conditions such as stuffy, perspiration, to children sitting on the breathable seat cushioning device. Moreover, warm air flow can be provided during colder environment.

An active bolster has a plastic-molded, expandable front wall and a plastic-molded back wall joined around a substantially sealed perimeter with the front wall to form an inflatable bladder. The back wall includes at least one active vent and at least one substantially circumferential pleated baffle. An inflator couples an inflation gas into the inflatable bladder in response to a crash event of the vehicle. The active vent comprises a window opening in the back wall and an integrally-molded flap juxtaposed to the window opening. The flap has an undeflected position corresponding to a first flow coefficient and a deflected position corresponding to a second, nonzero flow coefficient that is less than the first flow coefficient. The flap moves from the undeflected position to the deflected position when a pressure in the inflatable bladder resulting from a passenger impact is greater than a predetermined pressure.

A bag with active ventilation includes an interior and an exterior defined by at least one panel. The bag includes a fan, which may be solar powered, with an air intake and exhaust, the air intake being disposed toward the exterior and the exhaust being disposed toward the interior. The bag includes at least one conduit fluidly connected to the exhaust for distributing air from the intake to the interior during use. Additionally, the bag may include a bladder having a first panel, a second panel, and a plurality of vents for distributing air to the interior of the bag. The bladder also includes supports that prevent compression of the bladder when a load becomes placed on it, such as when articles become placed in the bag. Thus, the supports allow air to distribute through the bladder to all parts of the bag regardless of the bag contents.

An acoustic module with a transducer and a solid waveguide. The transducer and waveguide may be curved to focus the acoustic energy along a focal line. The transducer, the top surface of the waveguide and the bottom surface of the waveguide may extend along coaxial curves. The waveguide may include a recess closely receiving the transducer. The waveguide may include an integral skirt that provides a thermal mass. The acoustic module may include a space to accommodate thermal management options. For example, the acoustic module may include a heatsink, an active ventilation system and/or a phase change material. The ultrasound device may include a controller configured to perform a uniformity scan sweep during supply of operating power to the transducer. The uniformity scan sweep can extend through a frequency range that includes the operating point of the acoustic module and does not exceed an acceptable efficiency loss.

The invention provides an active type multipurpose protection mask which comprises a mask body. The body is a shell with the outer side being convex and the inner side being an inwards-concave cavity. A closed contact ring for covering the face of a person is arranged on the side of the inwards-concave cavity of the mask body in a secondary-primary clamping buckle embedded mode. A cover with the two sides being convex in an arc-shaped mode covers the convex outer side of the mask body in the same secondary-primary clamping buckle embedded mode. According to the active type multipurpose protection mask, active ventilation design is adopted, and thus mask breathing resistance is lowered; air holes are formed in the two sides of the mask body, heat exchange between the mask body and the exhaled air can be conducted, the inhaled air temperature is increased, and direct excitation of the cold air is lowered.

The invention relates to agaricus bisporus compost and a stacking fermentation method. The compost is composed of pleurotus eryngii mushroom residues, chicken manure, straws, calcium superphosphate, potassium chloride, lime and gypsum, wherein the percentages by weight of the pleurotus eryngii mushroom residues, the chicken manure and the straws in the compost are as follows: 48-52% of pleurotus eryngii mushroom residues, 31-35% of chicken manure and 15-19% of straws, the total dosage of the pleurotus eryngii mushroom residues, the chicken manure and the straws serves as datum quantity, the calcium superphosphate accounts for 1.5% of the datum quantity, the potassium chloride accounts for 0.25% of the datum quantity, the lime accounts for 2% of the datum quantity and the gypsum accounts for 2% of the datum quantity, and all raw materials are performed with active ventilation, oxygen supply and stacking fermentation through a centrifugal fan and a PVC (polyvinyl chloride) tube to prepare the compost. The stacking fermentation method disclosed by the invention is beneficial to mechanical operation of the agaricus bisporus compost. Active ventilation, oxygen supply and stacking fermentation technology is adopted in the invention to save a large amount of labor in the stacking fermentation process of the compost and solve the defect of needing a large amount of labor in the current fermentation technology so as to quickly prepare high-quality compost.

An oven comprising a housing, a cook cavity located within the housing, wherein the housing includes an opening to the cook cavity and the cook cavity is configured to receive a food item through the opening, an oven door for covering the opening, a heating element configured to heat an air within the cook cavity, an active vent interconnecting the cook cavity and an outside of the housing, and a controller operatively coupled to the active vent and the heating element is disclosed. The controller is configured to perform the steps of (a) turning on the heating element to initiate a cooking cycle, (b) keeping the active vent closed during an initial stage of the cooking cycle, (c) after the initial stage of the cooking cycle, opening the active vent, and (d) keeping the active vent open during at least a portion of a remainder of the cooking cycle.

A garment such as a sports shirt has concealed ventilation channels; which provide a continuous air channel between permanent openings. In one embodiment, the channels are flexible and non-intrusive and the openings are maintained by springy eyelets The eyelets and channels are attached to the main fabric of the garment providing a robust and a streamlined construction. Another embodiment incorporates active ventilation structures within the channels the structures having a natural vibration frequency matched to a motion frequency spectrum of the wearer. In a further embodiment, the ventilation channels are made of shape memory polymer and change shape in response to changes in temperature.

The invention discloses a portable multifunctional chemical protective and isolated rescuing protective cover which comprises a supporting frame, an insulation pad, a temperature control system for refrigerating or heating the insulation pad, an isolation hood and a ventilation system, wherein after the isolation hood is supported by the supporting frame, the bottom side of the isolation hood is connected with the circumferential side of the insulation pad in a sealing way, and a closed accommodation space is formed inside the isolation hood; a passive ventilation hole and an active ventilation hole are formed in the isolation hood; an air filtering device is arranged on the passive ventilation hole; the active ventilation hole is connected with the ventilation system; by means of the active ventilation hole, the ventilation system filters external air and then blows the filtered air into the closed accommodation space or filters the air in the closed accommodation space and then exhausts the filtered air. According to the portable multifunctional chemical protective and isolated rescuing protective cover disclosed by the invention, scientific or effective adjuvant therapy is provided for wounded personnel rescue in the disaster process and wounded personnel in the transfer process, and further deterioration of disaster conditions or illness conditions of the wounded personnel is avoided while pains and illness conditions of the wounded personnel are alleviated.

The invention discloses a breathable automobile seat cushion. The breathable automobile seat cushion comprises a foam cushion body and an electrical heating cushion body, wherein the foam cushion body is provided with a plurality of ventilation holes which penetrate through the thickness of the foam cushion body; the electrical heating cushion body is laid on the upper surface of the foam cushion body and has a ventilation effect. According to the seat cushion, the problem of implementation of low-cost seat surface heating type vehicle seat with an air circulation exchange function is solved, meanwhile, an active ventilation type seat cushion system and a non-active ventilation type seat cushion system are combined, a seat manufacturer does not need to use two different foam cushion forming molds, and a low-cost solution of a high-class comfortable seat is implemented. The invention also discloses an automobile seat.

The invention discloses a method for active purification of air in vehicle after shut-down and parking. The air-conditioning controller is configured as: after the vehicle shuts down and parks, the ignition voltage IGN is OFF and an air-conditioner controller can control an actuator of a HVAC, the actuator includes a blower, an inner and outer circulation air door, a mode wind door and a temperature wind door; the method comprises the following steps of: starting the timer to timing in response to the shutdown of the vehicle and the complete closure of all the doors; and performing the activeventilation action when the timing time reaches the preset time and the current accumulator voltage is greater than the preset voltage value. The method can effectively reduce the car odor and harmfulVOCs in the long-term parking vehicles after the shutdown, and greatly increase the user's satisfaction with the air in the vehicle with very low cost.

An active body ventilation system which is dynamically responsive to vehicle status parameters, including for example the door open/closed status and the HVAC system status. An active ventilation unit is attached with a body wall which includes a portal housing defining a portal, a portal cover and a portal cover actuator for selectively adjusting the portal cover to thereby increase or decrease the unobstructed size of the opening of the portal. The active ventilation unit is interfaced electronically to various sensors of the motor vehicle, in which programming of an electronic control module determines optimum positioning of the portal covering via selective actuation of the portal cover actuator.

The invention discloses an active ventilation muffler, comprising a fastening box, a controller, a front sensor, an error sensor and an actuating speaker, the controller being mounted on the fastening box; the front sensor is connected to the controller and used for transmitting an acquired noise source noise signal to the controller; the actuating speaker is connected to the controller and mounted on the side of the front sensor far away from a noise source and is used for transmitting offset sound to offset noise given by the noise source; the error sensor is connected with the controller and mounted on the side of the actuating speaker far away from the noise source and is used for transmitting a stack noise signal of the noise given by the noise source and the offset sound transmitted by the actuating speaker to the controller. The active ventilation muffler has an integration of the sensor, the controller and an actuator and may be flexibly mounted on a duct wall for removing noise in a ventilation line system, and a noise control device high in muffling capacity, compact in structure, small in size, low in weight and low in resistance loss is provided for places having a high requirement on ventilation noise.

A shoe incorporating carbon fiber composite components to provide performance improvements in lighter weight, better shock absorption, traction by use of spikes, better support, substantial bounciness by being resistant to deformation and provides active ventilation. The shoe of this invention utilizes carbon fiber composite's to easily fabricate the designs.

The invention provides an active ventilation type underwater navigation body test device. The test device comprises a navigation body head, a navigation main body shell, and a navigation body base; anair conveying device is arranged in the navigation body main body, the air conveying device comprises an air setting chamber and an air inlet pipe; an upper end of the air setting chamber is connected with the air setting chamber, a lower end of the air inlet pipe penetrates the navigation body base to connect with an external pressure system; air chambers are arranged in the air setting chamber,and air holes are formed on the air chambers; channels are arranged on the navigation main body shell, and the air holes are cooperated with the channels. The test device provided by the invention iscompact in structure, convenient for operation, wide in applicable range, and capable of realizing structure simple conversion and navigation body surface ventilation; an active ventilation bubble multiphase flowing problem is explored by combining the high-speed photography techniques; the test device aims at thoroughly researching an evolution mechanism thereof, and providing valuable referenceevidence for promoting the development of the active ventilation technology.

A system including an active ventilation device and a system controller. The active ventilation device is installed in an underground vault and generates an exhaust flow from the vault having an exhaust rate. The system controller is configured to determine that a reading received from a selected gas sensor indicates that a manhole event is occurring, and instruct the active ventilation device to change the exhaust rate when the reading indicates that the manhole event is occurring. The system controller is configured to receive at least one sensor reading after the exhaust rate has been changed, determine whether the selected gas sensor is exhibiting drift based at least in part on the sensor reading(s), and perform an action when the system controller determines the selected gas sensor is not exhibiting drift. The action includes notifying a user and/or instructing the active ventilation device to alter the exhaust rate.

The invention discloses an air circulation humidifying device in a desert area sample room. The air circulation humidifying device comprises a shell body, wherein the shell body is arranged on the roof of the sample room, a ventilation chamber is formed in the shell body, an annular cavity, a water storage cavity, a mounting cavity, an atomization cavity, a cooling cavity, a vertical cavity, two long cavities and a wide cavity are formed in the shell body, the wide cavity is located between the two long cavities and communicates with the two long cavities, the wide cavity and the two long cavities are formed in the left side of the ventilation chamber, the annular cavity is formed in the outer side of the vertical cavity, the water storage cavity is formed in the right side of the annularcavity, the mounting cavity is formed between the water storage cavity and the annular cavity, the atomization cavity is formed below the water storage cavity, and the cooling cavity is formed below the annular cavity. The air circulation humidifying device is provided with an active ventilation mechanism and an exhaust mechanism for circularly replacing indoor air, is provided with a refrigeration mechanism and an atomization mechanism for cooling and humidifying the indoor space, and generates power through wind power, so that the waste of electric power resources is reduced.