Class / Patent application number | Description | Number of patent applications / Date published |
454070000 | Pressure regulation | 67 |
20080200109 | Asymmetrical Pressure Relief Vent - One or more valves may be employed in a pressure relief vent of a vehicle. The valves may have asymmetrical closing characteristics of differing pressuring inducing closing characteristics or both in order to reduce the peak noise generated as the valves are closing. | 08-21-2008 |
20090088062 | Vehicle Body Pressure Relief System - A battery pack cooling and body pressure relief system for a vehicle having a passenger cabin is disclosed. The system may include an intake air flow duct connected between the passenger cabin and the battery pack, and an air flow duct connected between the exhaust air outlet and the body pressure relief valve. The system may include a one-way cabin pressure relief vent connected to the air flow duct and configured to selectively allow for air flow into the air flow duct, and may include a duct pressure relief vent connected to the air flow duct and configured to selectively allow for air flow out of the air flow duct into the vehicle. | 04-02-2009 |
20100099346 | ACTIVE MATERIAL ENABLED PRESSURE RELEASE VALVES AND METHODS OF USE - An active pressure relief valve adapted for selectively regulating a condition within an interior compartment generally includes a housing fluidly coupling the compartment to an external environment and defining an opening, an actuator including an active material element operable to effect movement of a flap relative to the opening, a load limit protector coupled to and configured to present a secondary output path for the element, when the flap is unable to move, and/or a latching mechanism coupled to, and configured to engage the flap, so as to retain the flap in a modified condition. | 04-22-2010 |
20100112924 | ACTIVE MATERIAL ENABLED PRESSURE RELEASE VALVES AND METHODS OF USE - A pressure relief valve includes a housing and vane that is movable to one of an open position and a closed position. A linear actuator mechanically couples between the movable vane and the housing. The linear actuator is a wire device fabricated from a shape memory alloy. An actuable latching system is configured to retain the movable vane in one of the open position and the closed position for an indeterminate time period. | 05-06-2010 |
20100216384 | AIR EXTRACTORS - An air extractor assembly for an automotive vehicle is disclosed which has first and second air extractor valves mounted in a body panel. The first air extractor valve opens when pressure within the passenger compartment at a first pressure differential and the second air extractor valve opens at a second higher pressure differential. The second flap has a weight, which by virtue of gravity, resists opening. The weight can be a magnetic strip that is attracted to a ferrometallic and/or magnetic strip applied around the second aperture. By providing air extractor valves which open at different pressure differences, only the first air extractor valve opens when the pressure difference is in a lower range thereby limiting noise transmission into the passenger compartment. When a car door is shut and/or the climate control system is operating at maximum, the pressure difference is greater causing both extractor valves to open. | 08-26-2010 |
20100221992 | Method and System for Delivering Announcements in a Cabin - A method for delivering announcements via a cabin communication facility comprising at least one cabin loudspeaker and via an on-board entertainment system comprising at least one headset output comprises the steps of delivering an announcement via the at least one cabin loudspeaker, beginning at a first instant, and delivering the announcement via the at least one headset output, beginning at a second instant, which differs from the first instant, the delivering of the announcement via the at least one cabin loudspeaker and the delivering of the announcement via the at least one headset output being initiated at differing instants. | 09-02-2010 |
20100330894 | SHAPE MEMORY ALLOY ACTIVE HATCH VENT - A vent assembly is disposed within an interior space of a vehicle for opening and closing fluid communication between the interior space and an exterior of the vehicle. The vent assembly includes a housing defining a plurality of openings and a plurality of vanes disposed in the openings. An actuator mechanism moves the vanes between an open position and a closed position, and includes a shaped memory alloy (SMA) member for actuating the vanes between the open and closed positions. The SMA member is activated when a hatch of the vehicle is open to move the vanes into the open position and thereby open fluid communication between the interior space and the exterior to alleviate excessive air pressure buildup during closure of the hatch. | 12-30-2010 |
20110183595 | AIRCRAFT WITH AT LEAST ONE PRESSURIZED FUSELAGE AREA AND AT LEAST ONE UNPRESSURIZED AREA AND METHOD FOR VENTILATING OF AN UNPRESSURIZED AREA OF AN AIRCRAFT - An aircraft includes, but is not limited to at least one fuselage with at least one pressurised fuselage region and at least one non-pressurized region and at least one air conditioning system for air conditioning the at least one pressurised fuselage region. The non-pressurized region includes, but is not limited to an air inlet and an air outlet connected to an air source from the pressurised fuselage region. Consequently it is possible to avoid the use of blowers, outlet valves and ram air flaps for ventilating non-pressurized regions of an aircraft. | 07-28-2011 |
20120003907 | VEHICLE VENT VALVE ASSEMBLY - A vehicle vent valve assembly ( | 01-05-2012 |
20130084789 | VEHICLE, COOLING APPARATUS, AND COOLING METHOD - There are provided a vehicle, a cooling apparatus, and a cooling method. The vehicle includes passenger space that accommodates a user, a tank that is capable of storing compressed air, and a control unit to release the compressed air stored in the tank into the passenger space. The control unit controls releasing so as to release part or the whole volume of the compressed air stored in the tank into the passenger space. | 04-04-2013 |
20130267157 | METHOD AND SYSTEM FOR PREVENTING EXHAUST INFLOW OF VEHICLE - Disclosed is a method of preventing an exhaust inflow, including: a measurement step of measuring a concentration of exhaust introduced into an interior of a vehicle through an exhaust detecting sensor installed in the interior of the vehicle, and comparing the concentration of the exhaust with a reference concentration; an introduction step of controlling an interior/exterior air door of an air conditioning apparatus to introduce more exterior air into the interior of the vehicle so as to increase an interior pressure when the concentration of the introduced exhaust is thicker than the reference concentration; and a blowing step of controlling a blower of the air conditioning apparatus to increase an amount of air discharged into the interior of the vehicle to increase the interior pressure when the thick concentration of the exhaust is maintained. | 10-10-2013 |
20140199929 | DEVICE AND METHOD FOR ACTIVE PRESSURE REGULATION IN RAIL VEHICLES - A device for active regulation of the internal vehicle pressure in a rail vehicle includes an aeration device for increasing the internal pressure in the rail vehicle, a ventilation device for reducing the internal pressure in the rail vehicle, and a measuring device for measuring the internal pressure in the rail vehicle. A control device is connected for signaling purposes at least to the ventilation device in order to reduce the internal pressure and to the measuring device, and the ventilation device for reducing the internal pressure can be controlled by the control device according to the internal pressure determined by the measuring device. | 07-17-2014 |
20140273784 | AIR EXTRACTOR TO REDUCE CLOSING EFFORT - An air extractor optimized for reducing closing efforts when closing a vehicle door is provided. The air extractor includes one or more openings that allow air flow between the passenger compartment of the vehicle and the vehicle exterior. The air extractor also includes a closure member that is movable between an open and closed position, wherein the open position allows air flow through the one or more openings and the closed position inhibits air flow through the one or more openings. The air extractor further includes an actuator that moves the closure member to the open position when one or more vehicle doors are opened and subsequently moves the closure member to the closed position once all doors have been closed. | 09-18-2014 |
20140378042 | VEHICLE AIR EXTRACTION SYSTEM AND METHOD - An automotive vehicle air extraction system in fluid communication with a cabin of the vehicle is provided. The extraction system may have a housing arrangement and a pair of extractors attached to the housing arrangement. A chamber may be formed between the housing arrangement and pair of extractors. An air pump may be in fluid communication with the chamber. The pair of extractors may be an inner extractor and an outer extractor. A controller may be configured to activate the air pump to supply airflow to the chamber to close the inner extractor and/or prevent inadvertent opening of the inner extractor. | 12-25-2014 |
20150087215 | CHARGER COOLING AIR SOURCE SELECTION METHOD - A charger cooling air source selection method includes cooling a vehicle battery charger by opening an outside air vent door in a vehicle and drawing outside air through the outside air vent door; determining whether the outside air vent door will close; and if the outside air vent door will not close, establishing and maintaining positive air pressure in a cabin of the vehicle by ensuring an open configuration of a recirculation door in the vehicle. | 03-26-2015 |
20170232819 | Method for Controlling a Ventilation System for a Vehicle Interior | 08-17-2017 |
20170232978 | Method and device for preventing fast changes of the internal pressure in an enclosed space | 08-17-2017 |
454071000 | Ventilation of aircraft cabin | 50 |
20080299887 | Arrangement For Supplying Humidified Ambient Air For An Aircraft - An arrangement for supplying humidified ambient air for an aircraft comprises a first line arrangement ( | 12-04-2008 |
20090088063 | Cabin air supercharged aircraft internal combustion engine - An aircraft having a user region therein within which pressurized air at selected pressures can be maintained using an environmental control system provided in the aircraft, and a utility region outside a utility boundary wall of the user region within which selected equipment for the aircraft is located. An internal combustion engine, provided as an intermittent combustion engine, is provided in the utility region having an air intake coupled to combustion chambers therein and a rotatable output shaft also coupled to those combustion chambers for generating force with an air transfer duct extends between the user region and the air intake so as to be capable of conveying pressurized air to that air intake. | 04-02-2009 |
20090117840 | Method of operating an aircraft system - The present disclosure relates to a method of operating an aircraft system, in particular for the purpose of fresh air supply, air-conditioning and pressurization of an aircraft cabin, having a first compressed air source formed by a first compressor charged with ambient air, ram air and/or precompressed air and driven by means of at least one motor and/or of at least one turbine and whose outlet is in direct or indirect communication with an aircraft cabin, said aircraft system having at least one second compressed air source whose outlet can be connected directly or indirectly to the aircraft cabin, wherein only the first compressed air source is in communication with the aircraft cabin in a first operating mode, wherein both the first and the second compressed air sources are in communication with the aircraft cabin in a second operating mode, and wherein the selection of the operating mode depends on the pressure of the ambient air such that the first operating mode is set at a high pressure of the ambient air and the second operating mode is set at a pressure of the ambient air lower in comparison. | 05-07-2009 |
20090137196 | PRESSURE BULKHEAD FOR AN AIRCRAFT - A pressure bulkhead for an aircraft, a method of manufacturing an aircraft, and an aircraft. The bulkhead includes at least one anticlastic shaped surface element. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way. | 05-28-2009 |
20090163130 | VENTILATION SYSTEM OFR WIDE-BODIED AIRCRAFT - A ventilation system for a wide bodied aircraft with pressurisation cabin which includes: a compressor apparatus with a heat exchanger for drawing air in from an input reservoir and for generating an excess pressure in at least one output reservoir, several air outlets in the pressurisation cabin which are connected to the output reservoir of the compressor apparatus, and at least one suction air intake pipe in the pressurisation cabin wherein the volume flow through at least one of the air outlets is adjusted each time by a volume flow control member, as well as to a method for manufacturing a ventilation system of this type. So that errors in the arrangement of the orifice plates in the ducts can be traced, and where applicable remedied, rapidly and without great expense it is proposed according to the disclosed embodiments that the volume flow control member includes: an orifice plate with predetermined internal cross-section in one pipe section, an electronic memory for storing orifice plate parameters and a transmission device for transmitting the orifice plate parameters from the memory to an external receiver device. | 06-25-2009 |
20090291625 | Air System - An air system for pressurizing and air conditioning a cockpit and cabin space of a plane comprises a compressor ( | 11-26-2009 |
20100216385 | Air Outlet Valve As Well As a System and Method for Emergency Ventilation of An Aircraft Cabin - An air outlet valve for use in an aircraft is adapted during normal operation of the aircraft as a component of a cabin pressure control system for adjusting a desired pressure level in an aircraft cabin to remove air from an interior of the aircraft into the environment around the aircraft. The air outlet valve is further adapted during emergency ventilation operation of the aircraft as a component of a system for emergency ventilation of the aircraft cabin to introduce air from the environment around the aircraft into the interior of the aircraft. The air outlet valve comprises a nose-side valve flap, which is pivotable about an axis and is adapted to open or close a nose-side portion of an air outlet valve aperture, and a tail-side valve flap, which is pivotable about an axis and is adapted to open or close a tail-side portion of the air outlet valve aperture. A portion of the tail-side valve flap that in the open state of the tail-side valve flap projects into an air stream flowing around an aircraft skin during cruising of the aircraft is greater than a portion of the nose-side valve flap that in the open state of the nose-side valve flap projects into the air stream flowing around the aircraft skin during cruising of the aircraft. | 08-26-2010 |
20100240290 | System And Method For Air Conditioning At Least One Partial Region Of An Airplane - A system for air conditioning at least one partial region of an aircraft comprises an air providing device for providing air to be supplied to a region of the aircraft to be ventilated at a desired temperature and pressure. A supply air duct is connected at a first end to the air providing device. A second end of the supply air duct is connected to an air inlet which opens near the floor into the aircraft region to be ventilated. A control device is set up to ensure that the air provided by the air providing device enters the aircraft region to be ventilated via the air inlet at such a speed that the air is distributed near the floor in the aircraft region to be ventilated and rises at heat sources present in the aircraft region to be ventilated, and that the air provided by the air providing device enters the aircraft region to be ventilated via the air inlet at such a temperature that a desired ambient temperature is set in the aircraft region to be ventilated. | 09-23-2010 |
20100291852 | OUTFLOW VALVE FOR AN AIRCRAFT - The invention relates to a valve for controlling a fluid flow from a first environment to a second environment, having a frame for disposing a separating element in the region of an opening, said element separating the first environment from the second environment, and a first flap and a second flap for controlling the fluid flow through the opening between the first environment and the second environment, the flaps being movable in the frame. The flaps have protrusions designed to reduce noise generation in the fluid flow. | 11-18-2010 |
20110009042 | FUSELAGE OF AN AIRCRAFT OR SPACECRAFT AND METHOD OF ACTIVELY INSULATING SUCH A FUSELAGE - The present invention relates to a fuselage of an aircraft or spacecraft, with at least one shell element and a structural element. An interspace to which air can be admitted by an air stream is provided between the at least one shell element and the structural element. The fuselage is distinguished by the fact that, to form the air-admitting air stream as an outgoing/incoming air stream of a pressurized interior space of the fuselage, the interspace is connected to a corresponding outgoing/incoming air connection of the interior space. The invention also relates to a corresponding aircraft or spacecraft and to a method of actively insulating such a fuselage. | 01-13-2011 |
20120064813 | CABIN PRESSURE THRUST RECOVERY OUTFLOW VALVE WITH SINGLE DOOR - A single valve door thrust recovery outflow valve is provided that does not rely on a relatively large and expensive actuator to move it, and does not create unwanted drag during aircraft cruise operations. The valve includes a valve frame, a valve door, and an aerodynamic flap. The valve door is rotationally coupled to the valve frame, is adapted to receive a drive torque, and is configured, upon receipt of the drive torque, to rotate between a closed position, a full-open position, and a plurality of partial-open positions between the closed position and the full-open position. The aerodynamic flap is coupled to the valve door. When the valve door is in the closed position and in numerous partial-open positions, the aerodynamic flap makes the thrust recovery outflow valve aerodynamically clean. | 03-15-2012 |
20120064814 | SHAFT FOR AIR BEARING AND MOTOR COOLING IN COMPRESSOR - An air bearing shaft has a first cylindrical portion with a relatively small outer diameter, and a ramped surface extending at an angle that is non-perpendicular and non-parallel to a central axis of a shaft body. The ramped surface leads into a second cylindrical portion of the shaft has a large outer diameter that is greater than the diameter of the first cylindrical portion. There are twelve air holes formed to extend into an interior of the second cylindrical portion. A bore diameter is defined to an inner periphery of the second cylindrical portion at the location of the air holes. A ratio of the bore diameter to a diameter of the air holes is between 6.30 and 6.54. In addition, a bearing assembly, a compressor, and a method of incorporating an air bearing shaft into a compressor are all disclosed and claimed. | 03-15-2012 |
20120064815 | THRUST BEARING SHAFT FOR THRUST AND JOURNAL AIR BEARING COOLING IN A COMPRESSOR - A thrust bearing shaft has an enlarged disk at one axial end to provide a rotating surface in a thrust bearing. A first cylindrical portion extends from the disk. A second cylindrical portion has a smaller diameter than the first cylindrical portion and extends from the first cylindrical portion to an end of the thrust shaft remote from the disk. The thrust shaft has a hollow bore with a ledge extending across the bore at a location within the first cylindrical portion. The ledge is formed with a central hole of a first hole diameter, and twelve air holes spaced circumferentially about the central hole. The twelve holes are formed of a second hole diameter, with a ratio of the first hole diameter to the second hole diameter being between 2.55 and 2.71. In addition, a bearing assembly, a compressor, and a method of assembling a compressor are disclosed. | 03-15-2012 |
20130040545 | LOW PRESSURE COMPRESSOR BLEED EXIT FOR AN AIRCRAFT PRESSURIZATION SYSTEM - An aircraft pressurization system, includes an auxiliary compressor for further compressing compressed air received from a low pressure compressor section of a gas turbine engine while the compressed air is below a predetermined pressure level; a bleed passage for fluidically connecting the auxiliary compressor to the low pressure compressor section; and an environmental control system coupled to an output of the auxiliary compressor for conditioning the compressed air to a predetermined level. | 02-14-2013 |
20130059516 | CABIN PRESSURE CONTROL SYSTEM THRUST RECOVERY OUTFLOW VALVE AND METHOD THAT ENABLE RAM AIR RECOVERY - A thrust recovery outflow valve and method for controlling the transfer of air between a cabin in an aircraft and atmosphere outside of the aircraft are provided. An outflow valve is mounted on the aircraft that includes a valve frame, a first valve door, and a second valve door. The first valve door is rotated to a first predetermined open position while the second valve door is in the second door closed position to thereby open first and second flow passages that place the aircraft cabin in fluid communication with the atmosphere. When the first valve door is at a first predetermined open position, a flap is rotated, relative to the first valve door, to at least partially cover the second flow passage and thereby at least inhibit flow through the second flow passage. | 03-07-2013 |
20130059517 | THRUST RECOVERY OUTFLOW VALVE WITH A SINGLE BI-FOLD DOOR AND METHOD OF CONTROLLING AIRCRAFT CABIN PRESSURE - A bi-fold valve door and method for controlling aircraft cabin pressure are provided. The bi-fold valve door includes an aft door section and a forward door section, and only the forward door section is selectively rotated about one rotational axis to a position between a closed position and a full-open position, while the aft door section is maintained in its closed position. The forward door section is selectively rotated about the rotational axis to a full-open position to engage the aft door section, while the aft door section is maintained in its closed position. When the forward door section is in the full-open position, the aft door section and the forward door section are simultaneously rotated about another rotational axis. | 03-07-2013 |
20130210329 | SELF-SUFFICIENT MONUMENT IN THE AIRCRAFT PRESSURE CABIN HAVING A DECENTRALIZED OPERATING RESOURCE SUPPLY AND EFFICIENT ENERGY CONVERSION - An autarkic monument in an aircraft pressure cabin supplied with the required operating mediums in a decentralized fashion by carrying along these operating mediums in the monument in operating medium reservoirs is provided. Methods for the efficient energy conversion within this autarkic monument are also provided. The efficiency is achieved such that the energy conversion is, based on the operating mediums, optimized with respect to exergo-economic and/or exergo-ecologic aspects, and such that energy conversion processes are adapted to one another if several energy conversion processes take place. | 08-15-2013 |
20140080397 | SELF-COOLED MOTOR DRIVEN COMPRESSOR - An nitrogen generation system for an aircraft is provided. The system includes a RAM air circuit, a motor driven compressor (MDC) having a rotor, a stator to drive rotor rotation and a compressor rotatably coupled to the rotor and a cooling system. The cooling system directs cooling air from the RAM air circuit to an inlet of the compressor and an alternative low pressure environment such that the cooling air removes heat from the stator. | 03-20-2014 |
20140242896 | VENTILATION CONDUIT FOR AN AIRCRAFT - An aircraft comprises composite skin having an opening, and a ventilation conduit having an end portion that extends to the opening in the composite skin. The conduit is made of metal except for the end portion, which functions as an electrical insulator. | 08-28-2014 |
20150065023 | INTERCOMPRESSOR BLEED TURBO COMPRESSOR - A bleed system that comprises a bleed inter-compressor fluidly coupled to a low pressure port of the bleed system and configured to utilize a portion of a medium received from the low pressure port to increase the pressure of another portion of that medium. A turbine of the bleed inter-compressor is coupled to a compressor of the bleed inter-compressor and drives the compressor via a shaft, so as to regulate the pressure of the medium. | 03-05-2015 |
20160167789 | CABIN BLOWER SYSTEM | 06-16-2016 |
454072000 | Auxiliary control system | 2 |
20100233950 | ANEROID REPLACEMENT - An altitude switch limit assembly has two independent limit switches to monitor cabin pressure and back up performance of the auto and monitor channels on the aircraft. The auto channel closes a first switch upon sensing that a cabin pressure falls below a set value, the monitor channel closes a second switch upon sensing that the cabin pressure falls below the set value. A first independent limit switch may be wired to the auto channel and a second independent limit switch may be wired to the monitor channel. Logic circuitry may determine that the assembly closes an outflow valve regulating cabin pressure when either both independent limit switches sense the condition, or when one of the independent limit switch senses the condition and either the auto channel or monitor channel to which that independent limit switch may be wired senses the same condition. | 09-16-2010 |
20100240291 | OUTFLOW VALVE POSITION INDICATION - An aircraft cabin pressure control system outflow valve includes a frame, a valve element, and a position sensor. The frame is configured to be mounted on an aircraft exterior skin. The valve element is rotationally coupled to the frame, and is coupled to receive an actuation drive force. The valve element is responsive to the actuation drive force to rotate to a position between a closed position and a plurality of open positions. The position sensor is coupled to the frame and is configured to directly sense rotation of the valve element and supply a position signal representative of valve element position. | 09-23-2010 |
454073000 | Mechanical operation of control system (e.g., by bellows or diaphragm, etc.) | 7 |
20090081937 | AIRCRAFT PRESSURE MANAGEMENT SYSTEM - One embodiment of a pressure management system for an aircraft may include a cavity, an opening in a surface of the cavity, and a moveable door. An interior area within the cavity may have an interior pressure and an exterior area outside of the cavity may have an exterior pressure. The door may open to uncover the opening and may close to cover the opening in response to pressure differential between the exterior pressure and the interior pressure. | 03-26-2009 |
20090253361 | VENTILATING AIR INTAKE ARRANGEMENT - The invention concerns an arrangement comprising at least one air passage channel ( | 10-08-2009 |
20120115407 | FURNACE BRAZE DEPOSITION OF HARDFACE COATING ON WEAR SURFACE - A disclosed method of hard coating a wear surface of a valve of an aircraft air management system is performed by depositing a hardface alloy powder onto the wear surface, heating the wear surface and the hardface alloy powder to transform the hardface alloy powder into a molten liquid mass, and subsequently cooling the molten liquid hardface alloy mass to solidify the hardface alloy onto the wear surface. The disclosed process provides for localized application and subsequent bonding of the hardface alloy to discrete portions of the wear surface. The solidified hardface alloy coating may then be machined to obtain specific wear surface geometries. | 05-10-2012 |
20130210330 | VALVE FOR CONTROLLING THE INTERNAL PRESSURE IN A CABIN OF AN AIRCRAFT - The invention relates to a valve ( | 08-15-2013 |
20140065937 | AIR TRANSMISSION SYSTEM FOR FLEXIBLE PASSENGER SUPPLY UNITS - A system for supplying passengers with air comprises an air supply line and an individual air panel with at least one air nozzle. The air supply line can be fitted with a plurality of laterally situated air outlets, which are spaced apart at uniform distances from each other. The individual air panel comprises an air tap opening with a width and length, wherein the length is several times greater than the width. The individual air panel can be variably positioned in the longitudinal direction on the air supply line in such a way that the air tap opening in the longitudinal direction is arranged parallel to the air supply line, and that the air tap opening covers at least one air outlet. In this way, air can flow out of the air supply line through the air outlet and air tap opening to the air nozzle. | 03-06-2014 |
20140134936 | LIGHTWEIGHT CABIN PRESSURE THRUST RECOVERY OUTFLOW VALVE - An aircraft cabin pressure control system outflow thrust recovery valve includes a frame, a valve element, and actuation hardware. The frame, valve element, and at least a portion of the actuation hardware are made of composite material. The actuation hardware is disposed external to the frame. | 05-15-2014 |
20160101869 | System and method for air conditioning at least one partial region of an airplane - A system for air conditioning at least one partial region of an aircraft includes an air providing device for providing air to be supplied to a region of the aircraft to be ventilated at a desired temperature and pressure. A supply air duct is connected at a first end to the air providing device. A second end of the supply air duct is connected to an air inlet which opens near the floor into the aircraft region to be ventilated. A control device is set up to ensure that the air provided by the air providing device enters the aircraft region to be ventilated via the air inlet at such a speed that the air is distributed near the floor in the aircraft region to be ventilated and rises at heat sources present in the aircraft region to be ventilated. | 04-14-2016 |
454074000 | Control system having electrical or electronic component | 20 |
20080233854 | CABIN PRESSURE CONTROL SYSTEM DUAL VALVE CONTROL AND MONITORING ARCHITECTURE - The present invention provides a cabin pressure control system that comprises a first outflow valve having a first motor controlled by a first outflow valve controller, the first outflow valve having a first backup motor controlled by a first backup controller. A second outflow valve has a second motor controlled by a second outflow valve controller, the second outflow valve also having a second backup motor controlled by a second backup controller. Upon failure of the first outflow valve controller, the second outflow valve controller controls the first outflow valve via the first backup controller and the first backup motor; and upon failure of the second outflow valve controller, the first outflow valve controller controls the second outflow valve via the second backup controller and the second backup motor. | 09-25-2008 |
20090298407 | AIRCRAFT CABIN PRESSURE DESCENT DETECTION AND CONTROL SYSTEM AND METHOD - Methods and apparatus are provided controlling aircraft cabin pressure, and more specifically engine bleed air manifold pressure, during aircraft descent. An aircraft engine bleed air manifold control pressure setpoint is to either a descent pressure setpoint or a cruise pressure setpoint by determining a rotational speed of an aircraft engine component, determining a component speed setpoint value, and determining aircraft vertical speed. The engine bleed air manifold control pressure setpoint is set to the descent pressure setpoint if either the determined rotational speed of the aircraft engine component is below the component speed setpoint value or the aircraft vertical speed is less than a predetermined vertical speed value. | 12-03-2009 |
20090305622 | PROCESS AND SYSTEM FOR CONTROLLING THE PRESSURE IN AN AIRCRAFT CABIN - In a process and a system for controlling the pressure in an aircraft cabin the status of at least one aircraft door is detected by at least one detection device by transmitting a signal indicative of the status of the aircraft door to a unit for controlling an avionics ventilation system which is controlled in dependence upon the signal indicative of the status of the aircraft door in such a way that a build-up of pressure in the aircraft cabin is prevented when the signal indicative of the status of the aircraft door indicates that the aircraft door is not fully closed and secured. | 12-10-2009 |
20100173575 | MULTIPLE OUTFLOW VALVE CABIN PRESSURE CONTROL SYSTEM - A multiple outflow valve control system for an aircraft is provided having a plurality of outflow valves that may be controlled independently via an all electrical control system. The outflow valves may be located in various locations in an aircraft. The control system may have a control loop controlling the outflow valve motors via open-loop PWM commands and may not have a motor speed feedback in the control loop. The cabin pressure control system may have manual and auto controls controlling separate motors on each outflow valve. Auto motor control may be performed via software biasing command logic included in the control laws in the control system. Air flow may be biased through selected outflow valves and the degree of biasing may be automatically or manually set. | 07-08-2010 |
20100190428 | THRUST RECOVERY, OR OTHER VALVE, CONTAINING TWO INDEPENDENTLY ACTUATED DOORS AND CONTROL SYSTEM - A thrust recovery valve has two flaps, with each flap controlled independently via its own rotary actuator. Embodiments of the present invention also provide a cabin pressure control system that includes one or two thrust recovery valves and the controls architecture to efficiently operate the valves. On each thrust recovery valve, only one door can be operated during flight, making less effective area change per unit time (relative to the operating both doors at the same time), allowing higher resolution of valve control. Further, the valve doors can be made such that the primary door that is operated in flight is smaller than the other door (mostly only operated on the ground). Because the doors of the thrust recovery valve can be operated independently, the forward door of each valve can be rotated such that the door creates a ram air “scoop” to ingress air to prevent negative pressure from building up beyond a specified limit. | 07-29-2010 |
20100203818 | METHOD FOR REDUCING OUTSIDE AIR INFLOW REQUIRED FOR AIRCRAFT CABIN AIR QUALITY - A method for reducing outside air inflow required for aircraft passenger cabin air quality is provided. The method determines when passenger cabin air quality is the driving outside air inflow requirement and reduces the outside air inflow to that required for passenger cabin air quality. In one embodiment, there is provided a method for reducing outside air inflow required for aircraft passenger cabin air quality using a fixed minimum outflow valve open area setpoint. In another embodiment, there is provided a method for reducing outside air inflow required for aircraft passenger cabin air quality using calculations that are repeated at regular intervals and using a mathematical function relating an outside air inflow requirement to a set of independent variables. In another embodiment, there is provided a method for calculating an aircraft fuselage leakage value and communicating the fuselage leakage value and an increase in a fuel consumption rate due to an additional amount of outside air inflow required to replenish air loss due to fuselage leakage, due to aerodynamic drag, and due to reduced thrust recovery. | 08-12-2010 |
20100203819 | VARIABLE SET POINT ALL-ELECTRIC PRESSURE RELIEF VALVE AND CONTROL, INDEPENDENT FROM THE AUTOMATIC CABIN PRESSURE CONTROL SYSTEM - A system for maintaining a desired cabin pressure in an aircraft includes a cabin-pressure control sub-system; a pressure relief valve for operation in event of failure or malfunction of the subsystem; a pressure relief valve actuator for operating the pressure relief valve; and a pressure relief valve control (PRVC) for producing commands for operation of the pressure relief valve actuator responsively to a first set of signal indicative of aircraft altitude and to presence of cabin-to-ambient pressure differential (ΔP) that varies from a desired ΔP by a predetermined amount | 08-12-2010 |
20100210201 | OUTLET VALVE FOR AN AIRPLANE - An outflow valve for an aircraft has a frame for arrangement in an opening of an outer shell of the aircraft, a first flap pivotably arranged in the frame for controlling a flow cross-section of at least one first inflow opening and at least one outflow opening. To achieve a simplified construction of the ventilation system of the aircraft, the outflow valve has a second inflow opening configured to be closable by means of a drivable adjustable member. | 08-19-2010 |
20100317276 | CONTROL UNIT FOR ACTUATING A PRESSURE VALVE, IN PARTICULAR A DIFFERENTIAL PRESSURE VALVE OF AN AIRCRAFT CABIN - A control unit ( | 12-16-2010 |
20110165828 | LIGHTWEIGHT CABIN PRESSURE THRUST RECOVERY OUTFLOW VALVE - An aircraft cabin pressure control system outflow thrust recovery valve includes a frame, a valve element, and actuation hardware. The frame, valve element, and at least a portion of the actuation hardware are made of composite material. The actuation hardware is disposed external to the frame. | 07-07-2011 |
20110177770 | OUTFLOW VALVE HAVING FLEXIBLE BELLMOUTH AND CABIN PRESSURE CONTROL SYSTEM EMPLOYING THE SAME - Embodiments of an outflow valve are provided for use in conjunction with an actuator. In one embodiment, the outflow valve includes a frame and a first door rotatably coupled to the frame and configured to be moved by the actuator between an open position and a closed position. The first door includes: (i) a main body, (ii) a bellmouth fixedly coupled to the main body, and (iii) a plurality of longitudinally-spaced slots formed through the bellmouth and increasing the flexibility thereof. | 07-21-2011 |
20110201262 | Rapid Decompression Detection System and Method - A system for monitoring pressure change within at least one compartment of an aircraft is provided. The system includes a primary pressure sensor for providing a signal corresponding to a pressure within a primary compartment of the aircraft, a primary monitoring channel coupled to the primary pressure sensor, and an output driver coupled to the primary monitoring channel. The primary monitoring channel includes a band pass filter for receiving and filtering the primary pressure signal, a pressure change circuit for determining a change in the filtered pressure signal and for providing a pressure change output signal corresponding to the change in pressure, and a threshold logic circuit for determining whether the pressure change output signal meets a predetermined threshold and for providing a threshold output signal indicating that a decompression event has occurred if the pressure change output signal meets the predetermined threshold. The output driver receives the primary threshold output signal and outputs a notification signal. | 08-18-2011 |
20110212677 | HOUSING ASSEMBLY FOR AN ELECTRICAL DEVICE - A housing assembly for an electrical device for use on an aircraft is provided. The assembly comprises a housing configured for containing at least one electrical component in a portion of the aircraft vented to atmosphere; and a pressure communication line for communicating between an interior of the housing and a source of pressurized gas available on the aircraft for other primary purpose. | 09-01-2011 |
20120196520 | REGULATING SYSTEM FOR THE CABIN PRESSURE OF AN AIRPLANE AND METHOD FOR REGULATING THE CABIN PRESSURE OF AN AIRPLANE - A regulating system for the regulation of the cabin pressure P | 08-02-2012 |
20130059518 | METHOD AND SYSTEM FOR CONTROLLING AN AIRCRAFT COMPONENT DURING A WATER LANDING - The invention relates to a system ( | 03-07-2013 |
20140065938 | SYSTEM AND METHOD FOR EQUALIZING AN OVERPRESSURE IN THE INTERIOR OF AN AIRCRAFT CABIN - A system and method are disclosed for equalizing an overpressure in the interior of an aircraft cabin. The system includes a fluid flow path for providing fluid communication between the interior of an aircraft cabin and the exterior of the aircraft and a check valve having an opened state and a closed state. The check valve enables fluid flow through the fluid flow path from the interior of the aircraft cabin to the exterior of the aircraft and blocks fluid flow through the fluid flow path in the reverse direction when the check valve is in the opened state, and blocks fluid flow through the fluid flow path in both flow directions when the check valve is in the closed state. The system also includes a control operatively coupled to the check valve for controlling the check valve to switch between the opened state and the closed state. | 03-06-2014 |
20140162542 | Method and system for emergency ventilating and pressurizing an aircraft cabin - A method for emergency ventilating and pressurizing an aircraft cabin comprises determining a cabin pressure within the aircraft cabin and determining an ambient pressure in an aircraft environment. Descent of the aircraft is initiated when the cabin pressure falls below a predetermined threshold value. A supply of ambient air from the aircraft environment into the aircraft cabin is initiated, when, during descent of the aircraft, a differential pressure between the cabin pressure and the ambient pressure falls below a first calculated threshold value. The supply of ambient air into the aircraft cabin and an operation of an air outflow valve of a cabin pressurization system of the aircraft are controlled such that a flow of ambient air into the aircraft cabin corresponds to at least a predetermined minimum value and the differential pressure between the cabin pressure and the ambient pressure does not fall below a second calculated threshold value. | 06-12-2014 |
20140323026 | AMBIENT CONDITION BASED ADJUSTING OF CABIN PRESSURE TO ACHIEVE TARGET AIRCRAFT INFLOW - Embodiments relate to adjusting cabin pressure based on ambient conditions to achieve a target aircraft inflow. An aspect includes receiving a number of occupants on an aircraft. The ambient conditions on the aircraft are monitored and an occupant threshold limit is determined for the aircraft based on the ambient conditions. If it is determined that the number of occupants exceeds the occupant threshold limit, the cabin pressure is reduced in the aircraft according to embodiments. The cabin pressure in the aircraft is reset in response to the occupant threshold limit being increased due to changing ambient conditions. | 10-30-2014 |
20150065024 | SYSTEMS AND METHODS FOR REFRIGERATING GALLEY COMPARTMENTS - A refrigeration system for providing cooled air to a plurality of galley compartments. The refrigeration system includes a plurality of galley compartments configured to receive therein at least one galley cart, a refrigeration unit configured to supply cooled air to the plurality of galley compartments, and an airflow supply and return system coupling the refrigeration unit to the plurality of compartments. The refrigeration system also includes a plurality of valves coupled in the airflow supply and return system for controlling flows of the cooled air through airflow supply and return system, each valve of the plurality of valves associated with a compartment of the plurality of compartments and a controller in control communication with the plurality of valves, the controller configured to control the plurality of valves to achieve a first temperature in a first galley compartment of the plurality of galley compartments and a second temperature in a second galley compartment of the plurality of galley compartments, the first temperature being different than the second temperature. | 03-05-2015 |
20150065025 | ENVIRONMENTAL CONTROL SYSTEM INCLUDING A COMPRESSING DEVICE - A compressing device added to a cabin air conditioning system to increase a pressure of air in the cabin air conditioning system itself and, thus, allow for lower pressure air to be bled from the engine. For instance, the compressing device allows air to be bled from a low, rather than a high, pressure locations of the engine. | 03-05-2015 |