474results about How to "Reduce airflow" patented technology

A method of operating an engine for a vehicle having at least a first cylinder, the method comprising of operating the first cylinder to provide at least one of compression braking and expansion braking by holding one of an intake valve and an exhaust valve of the first cylinder closed while opening, closing, and opening the other of the intake valve and the exhaust valve during a cycle of the first cylinder and during a first vacuum level of an intake manifold upstream of the first cylinder; and operating the first cylinder to provide at least one of compression braking and expansion braking by operating both the intake valve and the exhaust valve of the first cylinder during a cycle of the first cylinder to allow at least some air to flow through the first cylinder during a second vacuum level of the intake manifold.

This invention provides methods of treating a patient's lung. One aspect of the invention provides a method of treating a lung including the following steps: inserting a collateral flow blocking agent delivery device into an air passageway of the lung; and delivering a collateral flow blocking agent to reduce airflow between a portion of the lung distal to the delivery device and the exterior of the patient. Another aspect of the invention provides a method of treating a lung including the step of delivering a collateral flow blocking agent to reduce airflow through openings in lung tissue caused by tissue degradation.

A device for delivering a drug by inhalation is disclosed. The device includes a body defining an interior flow-through chamber having upstream and downstream chamber openings, and a drug supply unit contained within the chamber for producing, upon actuation, a heated drug vapor in a condensation region of the chamber. Gas drawn through the chamber region at a selected gas-flow rate is effective to form drug condensation particles from the drug vapor having a selected MMAD between 0.02 and 0.1 MMAD or between 1 and 3.5 μm. A gas-flow control valve disposed upstream of the unit functions to limit gas-flow rate through the condensation region to the selected gas-flow rate. An actuation switch in the device activates the drug-supply unit, such that the drug-supply unit can be controlled to produce vapor when the gas-flow rate through the chamber is at the selected flow rate.

A non-invasive, removable intraoral electrical Stimulator or Pacemaker system and method is described, for electrically-stimulating and re-establishing the tone in the upper pharyngeal dilator muscle, the genioglossus and base-of-tongue muscles, for the treatment of Obstructive Sleep Apnea (OSA) in human adults and young adults. The Stimulator system consists of an intraoral Stimulator device assembly with a rechargeable battery, an external (inductive) Recharger appliance and an external hand-held (inductive) Programmer appliance. The Stimulator device assembly is inserted into the mouth by the OSA patient before sleep time and is removed when awake or during normal activity and placed in the charging cradle of the Recharger appliance for recharging the device battery. The physician uses the hand-held Programmer appliance to determine and set the patient-specific stimulation therapy parameters in the device, at the patient's initial evaluation. The stimulation therapy is delivered either in an open loop configuration without regard to patient's respiration activity, or in a closed loop configuration synchronized to the patient's respiration detected by one or more sensors in the system.

Provided are electrokinetically-altered fluids (gas-enriched (e.g., oxygen-enriched) electrokinetic fluids) comprising an ionic aqueous solution of charge-stabilized oxygen-containing nanostructures in an amount sufficient to provide, upon contact with a cell, modulation of at least one of cellular membrane potential and cellular membrane conductivity, and therapeutic compositions and methods for using same in treating cystic fibrosis or a symptom thereof. The electrokinetically-altered fluid compositions and methods include electrokinetically-altered fluids optionally in combination with other therapeutic agents (e.g., antibiotics, albuterol, budesonide, etc.). Particular embodiments comprise use and / or synergy with tobramycin for treating bacterial infection, and use and / or synergy with a bronchiodilator. In certain aspects, the methods comprise regulating intracellular signal transduction by modulation of at least one of cellular membranes, membrane potential, membrane proteins (like, membrane receptors, including but not limited to G protein coupled receptors, and intercellular junctions).

A method of applying a profiled abradable coating onto a substrate in which an abradable ceramic coating composition is applied to a metal substrate using one or more coating application techniques to produce a defined ceramic pattern without requiring a separate web or grid to be brazed onto the substrate. The invention is particularly designed to withstand the higher operating temperatures encountered with the stage 1 section of 7FA+e gas turbines to allow for increased coating life without significant deterioration in structural or functional integrity. Typically, the grid pattern coating begins approximately 0.431″ after the leading edge of the shroud, and ends approximately 1.60″ before the trailing edge of the shroud. In the case of diamond-shaped patterns, the grid pattern will be about 0.28″ long and 0.28″ wide, with an overall thickness of about 0.46.″ The coatings thus provide the required levels of abradability and leakage performance and may be applied as a chevron or diamond pattern with the shape oriented such that the diagonals run perpendicular and parallel to the sides of the shroud.

A combination of vehicle fairing structures forming a fairing system having a front end structure, a rear end structure, and first and second side structures, for optimizing the aerodynamic profile of vehicles, especially tractor-trailer combinations.

Provided are electrokinetically-altered fluids (gas-enriched (e.g., oxygen-enriched) electrokinetic fluids) comprising an ionic aqueous solution of charge-stabilized oxygen-containing nanostructures in an amount sufficient to provide, upon contact with a cell, modulation of at least one of cellular membrane potential and cellular membrane conductivity, and therapeutic compositions and methods for using same in treating cystic fibrosis or a symptom thereof. The electrokinetically-altered fluid compositions and methods include electrokinetically-altered fluids optionally in combination with other therapeutic agents (e.g., antibiotics, albuterol, budesonide, etc.). Particular embodiments comprise use and / or synergy with tobramycin for treating bacterial infection, and use and / or synergy with a bronchiodilator. In certain aspects, the methods comprise regulating intracellular signal transduction by modulation of at least one of cellular membranes, membrane potential, membrane proteins (like, membrane receptors, including but not limited to G protein coupled receptors, and intercellular junctions).

A cutting and dust collecting assembly comprises a rotatable, circular saw blade (4) having a first side (20), a second side (21), and a cover device (6) with a terminal member (52). The bottom surface (36) of the cover device extends in a plane. A longitudinal passage (45, 46) for the saw blade extends through the cover device from its top surface to its bottom surface. The terminal member comprises a terminal chamber (60) having an inlet (45a), the mouth of which coincides with the plane of said bottom surface. An outlet (58) can be connected to a vacuum source. The direction of rotation of the operating blade is such that the rear part (4a) of the saw blade which has passed beyond the bottom surface of the cover device will move in a direction upwards-rearwards towards the bottom surface. The invention also concerns the cover device, a sealing body belonging to the cover device and a working machine which is provided with the cutting and dust collecting assembly.

In a first embodiment, a system, including an exhaust duct configured to flow an exhaust gas, and an air injection system coupled to the exhaust duct, wherein the air injection system comprises a first air injector configured to inject air into the exhaust duct to assist flow of the exhaust gas through the exhaust duct.

A dual (or multi) sectional evaporator system comprising first and second (or more) evaporator sections capable of cooling the air supply through the evaporator. The first evaporator section is positioned upstream of the second evaporator section (second upstream of the third and so on). However, the warmest refrigerant passes through the first evaporator section and the coldest refrigerant passes through the second evaporator section (or last evaporator section if more than two sections), such that the air supply is precooled prior to reaching the second (or last) evaporator. Providing a two (or more) passes of refrigerant through the dual (or multi) sectional evaporator system increases the superheat temperature out of the first evaporator up to about 25 degrees Fahrenheit, and / or increases the mass flow of refrigerant because of the increased heat exchange efficiency provided by counterflow heat exchange. Moreover, in the preferred embodiment for an A-coil or slant coil, the second evaporator section is positioned over the top of the first evaporator section such that the second evaporator overlays the first evaporator section in order to maximize the use of available space. Also, A-coil or slant coil forms of the present invention are configured such that they include contoured cut-out shaped corner portions wherein the squared corners of the evaporators are substantially eliminated thereby eliminating the dead air flow spaces typically associated with other known evaporators. The elimination of the dead air space allows the system to operate at a lower fan speed as well as allows the system to be constructed and operate within smaller confines.

An adjustable grill shutter system is provided. In one embodiment, adjustment of the grill shutter system can be provided by a method of adjusting a grill shutter system for a vehicle, the method comprising adjusting opening of one or more grill shutters located at a front end opening of the vehicle in response to a non-driven vehicle condition.

A method of operating an engine for a vehicle having at least a first cylinder, the method comprising of operating the first cylinder to provide at least one of compression braking and expansion braking by holding one of an intake valve and an exhaust valve of the first cylinder closed while opening, closing, and opening the other of the intake valve and the exhaust valve during a cycle of the first cylinder and during a first vacuum level of an intake manifold upstream of the first cylinder; and operating the first cylinder to provide at least one of compression braking and expansion braking by operating both the intake valve and the exhaust valve of the first cylinder during a cycle of the first cylinder to allow at least some air to flow through the first cylinder during a second vacuum level of the intake manifold.

A stationary ring surrounding a hot gas passage in a gas turbine, the ring being surrounded by a stationary annular housing co-operating therewith to define an annular cooling chamber into which there opens out at least one cooling air feed orifice. The ring is made up of a plurality of ring segments, each ring segment including a top internal cooling circuit and a bottom internal cooling circuit. The bottom cooling circuit is independent of the top cooling circuit and is radially offset relative to the top cooling circuit.

A patient transfer device includes a mat, with an upper side and a gas permeable lower side. The mat includes a chamber between its upper and lower sides, which is operable to be in fluid communication with an air source such that when air flows into the mat, the air will flow into the chamber and through the gas permeable lower side to form an air film between the mat and a surface on which the mat is supported at its lower side. In addition, the lower side of the mat is substantially planar when the mat is inflated. A system for controlling the inflation of the mat may be used that automatically adjusts for the inflation of the mat during patient transfer.

Lung conditions are treated by implanting a flow restrictor in a passageway upstream from a diseased lung segment. The restrictor will create an orifice at the implantation site which inhibits air exchange with the segment to induce controlled atelectasis and / or hypoxia. Controlled atelectasis can induce collapse of the diseased segment with a reduced risk of pneumothorax. Hypoxia can promote gas exchange with non-isolated, healthy regions of the lung even in the absence of lung collapse.

A ventilation system that includes a fan for providing fresh air within an infant's sleeping area. The fan may be mounted to the infant's sleeping device and may include fan guards surrounding the fan for increased safety. The ventilation system may include a sensing device for monitoring the conditions within the infant's sleeping area. The sensing device may monitor the oxygen level, the carbon dioxide level, and the presence of smoke. The sensing device may monitor for additional toxic gasses or hazardous conditions within the infant's sleeping area. The ventilation system may further include a remote receiver that receives signals from the sensing device if a hazardous condition exists within the infant's sleeping area. The ventilation system may further include local and remote alarms configured to provide notification of a hazardous condition within the infant's sleeping area.

A surface cleaning apparatus comprises a surface cleaning head, an upright section movably mounted to the surface cleaning head between a storage position and a floor cleaning position and a hand vacuum cleaner removably mounted to the upright section wherein the surface cleaning head has a first suction motor and the hand vacuum cleaner has a second suction motor, the first suction motor and second suction motor co-operate to convey air through the surface cleaning apparatus.

The object of the present invention is to provide a method for producing a toner which includes ejecting a toner composition fluid containing a toner composition which contains a toner and a colorant, from a nozzle vibrated at a constant frequency to make the toner composition fluid into droplets, and solidifying the droplets to be made into particles, in which the toner composition fluid comprises a toner composition, and the toner composition contains a resin, and a colorant.

Methods and systems are provided for mitigating engine pre-ignition based on a feed-forward likelihood of pre-ignition and feedback from a pre-ignition event. In response to an indication of pre-ignition, a cylinder may be enriched while an engine load is limited. The enrichment may be followed by an enleanment to restore exhaust catalyst feed-gas oxygen levels. The mitigating steps may be adjusted based on engine operating conditions, a pre-ignition count, as well as the nature of the pre-ignition.

A combustion system uses a fuel nozzle with an inner wall having a fuel inlet in fluid communication with a fuel outlet in a fuel cartridge. The inner wall defines a mounting location for inserting the fuel cartridge. A pair of annular lip seals around the cartridge outer wall on both sides of the fuel outlet seals the fuel passage between the fuel inlet and the fuel outlet.

A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air / fuel mixture and a second group of cylinders pumping air only (i.e., without fuel injection). In addition, the engine control method also provides the following features in combination with the above-described split air / lean mode: idle speed control, sensor diagnostics, air / fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also changes to combusting in all cylinders under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.

The present invention proposes to apply against dangerous natural phenomena (mainly hurricane) relocatable water pump stations using wave energy and having two states: operating state (for cold water pumping) and collapsed state (suitable for transportation). In collapsed state these stations have a severe less cross-section at least in one of horizontal directions. Such stations include reconfiguration means for theirs transforming from one said state to the second state and back.

An adjustable grill shutter system is provided. In one embodiment, adjustment of the grill shutter system can be provided by a method of adjusting a grill shutter system for a vehicle, the method comprising adjusting opening of one or more grill shutters located at a front end opening of the vehicle in response to a non-driven vehicle condition.

In a spin-chuck with plural collector levels, a separate exhaust controller is provided for each level. This permits selectively varying gas flow conditions among the collector levels, so that the ambient pressure at one level does not adversely affect device performance in an adjacent level.

Windage proximate to a spinning disk within a disk drive is directed through a plurality of apertures in a ramp situated near the outside diameter of the disk. A tab extending from a load beam that supports a slider rests on the ramp when the drive is not in use. When the drive is started the disk begins to spin and an actuator moves the load beam to bring the slider over the surface of the disk. As the load beam moves, the tab is guided along the ramp and cushioned by the air flow emerging from apertures in the ramp beneath it. When the drive is stopped the actuator brings the load beam back so that the tab engages the ramp. A cushion of air is again provided as the tab is moved along the ramp as the tab is returned to a parked position.

The invention provides an explosion-proof valve, belonging to the field of mechanical technology. The invention solves the problem that a current explosion-proof valve can not extinguish flame completely in the explosion-proof valve. The explosion-proof valve comprises a panel, a base plate and an inner flame retardant device, which form a valve cavity provided with a valve plate forming a sealing space with the seat plate, a spring is arranged between the panel and the valve plate, and an outer flame retardant device is also fixed between the panel and the seat plate, both the outer flame retardant device and the inner flame retardant device are formed by alternatively stacking the front and the back of a plurality of circular sheets of the flame retardant devices, a plurality of channels communicating the valve cavity and the outside are formed by stacking the fronts of the sheets of the flame retardant devices, each channel is provided with at least two bends. The outer flame retardant device and the inner flame retardant device extend the flow route of flame and air flow, the explosion-proof valve has the advantages of safe use, good flame extinguishing property and long service life.