Kelnhofer
Juergen Kelnhofer, Jork DE
Patent application number | Description | Published |
---|---|---|
20090095004 | SYSTEM FOR PRODUCING AIR - A system for the provision of process air comprises a first cooling system ( | 04-16-2009 |
20090255277 | OPTIMIZED DEFROSTING REGULATION OF PARALLEL ARRANGED FRESH AIR OUTLETS OF AIR CONDITIONERS - An arrangement is provided for de-icing pipeline connections of an aircraft, which are connected to all fresh air outlets of an air conditioner, whose construction includes, but is not limited to the functions of multiple turbines and heat exchangers, having a first pipeline, which is connected to a first turbine, and a second pipeline, which is connected to a second turbine, the two pipelines, which are each connected downstream from the two turbines and to which process air is fed at the turbine outlets, being connected at the pipe ends and being continued using a third pipeline. The arrangement is characterized in that a first hot air source is fed hot fresh air from a bleed air system of the aircraft and is connected at its outlet to a fourth pipeline, into which temperature-reduced fresh air is fed from the hot air source. The fourth pipeline is connected at its pipe end to two further valve-regulated pipelines, of which a fifth or a sixth pipeline is connected to the first or the second pipeline, and through which temperature-reduced fresh air is transported and fed valve-regulated to the first and/or second pipeline. | 10-15-2009 |
20090308978 | Relief valve for being arranged on an opening of a fuselage shell of an aircraft, fuselage part with such a relief valve and aircraft fuselage - The invention pertains to a relief valve ( | 12-17-2009 |
20100101251 | Method And System For Controlling An Aircraft Air Conditioning System With Optimised Fuel Consumption - In a method for controlling an aircraft air conditioning system ( | 04-29-2010 |
20110111683 | System For Ventilation Of An Aircraft Area | 05-12-2011 |
20110177771 | System For Cooling An Aircraft Zone, To Be Connected To An Aircraft-External Air Unit | 07-21-2011 |
20110247432 | Aircraft Conduit Monitoring System And Method - The invention relates to an aircraft conduit monitoring system comprising a conduit that conducts gas from a source to a point of application. A flow sensing device and a pressure sensing device are provided within the conduit. At least one set value of a gas mass flow rate and at least one set value of a pressure are sensed in a learning mode of operation. Said set values are compared with sensed actual values in the normal mode of operation. A gas volume flow rate can also be sensed and processed instead of a gas mass flow rate. | 10-13-2011 |
20110283713 | System For Cooling A Heat Exchanger On Board An Aircraft | 11-24-2011 |
20120064816 | System and process for cooling an aircraft zone using an aircraft-external air assembly - A system for cooling an aircraft zone includes a mixing chamber ( | 03-15-2012 |
20120273051 | OPTIMIZED DEFROSTING REGULATION OF PARALLEL ARRANGED FRESH AIR OUTLETS OF AIR CONDITIONERS - An arrangement is provided for de-icing pipeline connections of an aircraft, which are connected to all fresh air outlets of an air conditioner, whose construction includes, but is not limited to the functions of multiple turbines and heat exchangers, having a first pipeline, which is connected to a first turbine, and a second pipeline, which is connected to a second turbine, the two pipelines, which are each connected downstream from the two turbines and to which process air is fed at the turbine outlets, being connected at the pipe ends and being continued using a third pipeline. The arrangement is characterized in that a first hot air source is fed hot fresh air from a bleed air system of the aircraft and is connected at its outlet to a fourth pipeline, into which temperature-reduced fresh air is fed from the hot air source. The fourth pipeline is connected at its pipe end to two further valve-regulated pipelines, of which a fifth or a sixth pipeline is connected to the first or the second pipeline, and through which temperature-reduced fresh air is transported and fed valve-regulated to the first and/or second pipeline. | 11-01-2012 |
20130067945 | COMPRESSOR/TURBINE ARRANGEMENT, AIR CONDITIONING UNIT AND METHOD FOR OPERATING A COMPRESSOR/TURBINE ARRANGEMENT - The invention relates to a compressor/turbine arrangement for use in an air conditioning unit of an aircraft air conditioning system comprising a process air supply line which is designed to supply process air generated by a process air source to a compressor. A detection device is designed to detect a characteristic signal for the temperature of the process air flowing through the process air supply line. A turbine is designed to drive the compressor. A cooling device is disposed in a process air line connecting the compressor to the turbine and is designed to cool the process air coming out of the compressor and flowing through the process air line in the direction of the turbine. Downstream of the cooling device a connecting line branches off from the process air line and opens into the process air supply line. A control device is designed to control a process air flow through the connecting line in dependence on the signal detected by the detection device. | 03-21-2013 |
20130291651 | METHOD AND DEVICE FOR DETERMINING AN AIR MASS FLOW FLOWING THROUGH A RAM AIR CHANNEL - A method and a device determines an air mass flow flowing through a ram air channel having disposed therein a feed device adapted in a first operating state of the ram air channel to feed air through the ram air channel and further adapted in a second operating state of the ram air channel to be set in rotation by an air mass flow flowing through the ram air channel. The method includes the step of detecting an actual operational characteristic of the feed device that is characteristic of the air mass flow flowing through the ram air channel in the second operating state of the ram air channel as well as the step of determining the air mass flow flowing through the ram air channel on the basis of the detected actual operational characteristic of the feed device. | 11-07-2013 |
Juergen Kelnhofer, Hamburg DE
Patent application number | Description | Published |
---|---|---|
20130269374 | METHOD AND DEVICE FOR CONTROLLING AN AIRCRAFT AIR CONDITIONING SYSTEM - A method for controlling an aircraft air conditioning system includes the steps of detecting an operating state of an air conditioning unit of the aircraft air conditioning system and controlling the temperature of a process air mass flow supplied to the air conditioning unit in dependence on the operating state of the air conditioning unit. | 10-17-2013 |
20130333390 | Cooling air inlet, engine bleed air system and method for operating a cooling air inlet - A cooling air inlet which is particularly suitable for use in an engine bleed air system of an aircraft air conditioning system. The cooling air inlet comprises a cooling air inlet opening which opens into an inlet portion of a cooling air line. A cooling air inlet valve which is positionable in a first open position or a second open position is arranged in the inlet portion of the cooling air line. The cooling air inlet valve is adapted to effect the build-up of a first cooling air admission pressure in the inlet portion of the cooling air line in its first open position and the build-up of a second cooling air admission pressure in the inlet portion of the cooling air line in its second open position. The second cooling air admission pressure is greater than the first cooling air inlet pressure. | 12-19-2013 |
20140190190 | Aircraft Air Conditioning System and Method of Operating an Aircraft Air Conditioning System - An aircraft air conditioning system comprising a compressor adapted to generate compressed process air, an air conditioning unit adapted to cool and expand compressed process air supplied to the air conditioning unit from the compressor, and an energy converter adapted to convert hydraulic energy into electric energy. The compressor is supplied with electric energy generated by the energy converter by converting hydraulic energy supplied to the energy converter. | 07-10-2014 |
Jügen Kelnhofer, Jork DE
Patent application number | Description | Published |
---|---|---|
20110237173 | System And Method For Air Conditioning An Aircraft Cabin With Improved Cooling Capacity | 09-29-2011 |
Jurgen Kelnhofer, Jork DE
Patent application number | Description | Published |
---|---|---|
20130295831 | METHOD FOR CONTROLLING AN AIRCRAFT AIR CONDITIONING SYSTEM DURING MAINTENANCE - In a method for controlling an aircraft air conditioning system, during normal operation of the aircraft, the supply of conditioned air from the aircraft air conditioning system to an aircraft region to be air conditioned is controlled such that the conditioned air is evenly distributed in the aircraft region to be air conditioned. During a predetermined operational phase of the aircraft, the supply of conditioned air from the aircraft air conditioning system to the aircraft region to be air conditioned is controlled such that the conditioned air is distributed only in a selected portion of the aircraft region to be air conditioned. | 11-07-2013 |
Jürgen Kelnhofer, Hamburg DE
Patent application number | Description | Published |
---|---|---|
20130139891 | METHOD AND SYSTEM FOR CONTROLLING AN AUXILIARY POWER UNIT - A method for controlling the operation of an auxiliary power unit supplying an aircraft air conditioning system with compressed process air includes determining a heating or cooling requirement of an aircraft region to be air-conditioned, determining a desired value of at least one process air flow parameter in dependence on the determined heating or cooling requirement of the aircraft region to be air-conditioned, controlling the operation of the auxiliary power unit in dependence on the determined process air flow parameter desired value, acquiring an actual value of the at least one process air flow parameter, comparing the process air flow parameter actual value with the process air flow parameter desired value and controlling the operation of the auxiliary power unit in dependence on the result of the comparison of the process air flow parameter actual value with the process air flow parameter desired value. | 06-06-2013 |
20130248164 | METHOD FOR CONTROLLING AN AIRCRAFT AIR CONDITIONING SYSTEM AND AIRCRAFT AIR CONDITIONING SYSTEM - In a method for controlling an aircraft air conditioning system, a heating or cooling demand of an aircraft region to be air conditioned is determined. A volume flow of recirculation air discharged from the aircraft region to be air conditioned and a volume flow of compressed air into a mixing chamber of the aircraft air conditioning system is controlled such that the heating or cooling demand of the aircraft region to be air conditioned is met, while the volume flow of compressed air into the mixing chamber of the aircraft air conditioning system is minimized. | 09-26-2013 |
Jürgen Kelnhofer, Jork DE
Patent application number | Description | Published |
---|---|---|
20110309784 | COUNTER ELECTRO-MOTORIC FORCE BASED FUNCTIONAL STATUS DETECTION OF AN ELECTRO-MOTOR - The present invention relates to a circuit for detecting a functional status of an electro-motor. Typical electro-motors need additional components to identify the functional status of the motor. This means additional weight for such motors determining the functional status. According to the present invention a circuit is provided using a part of a motor as a sensor for detecting the functional status of the electro-motor. | 12-22-2011 |
Patrick Kelnhofer, Wauwatosa, WI US
Patent application number | Description | Published |
---|---|---|
20090159402 | SHOPPING CART CONVEYOR SYSTEM WITH PIVOTING LUG - A shopping cart conveyor system that moves a shopping cart from one location to another along a path. The system includes a frame, a track coupled to the frame, and a conveyor coupled to the frame and having an engagement member (e.g., multiple engagement members) adapted to engage a shopping cart. The engagement member is movable (e.g., pivotable) relative to the track from a first position, where the engagement member will engage and move the shopping cart along the path, and a second position, where the engagement member is capable of releasing engagement of the shopping cart. Preferably, the engagement member is biased toward the first position (e.g., by a resilient member). In one embodiment, the engagement member includes an engagement surface adapted to engage the shopping cart and defining an engagement angle between the engagement surface and a reference axis parallel to the path. In this embodiment, the engagement angle is acute when the engagement member is in the first position and is obtuse when the engagement member is in the second position. | 06-25-2009 |
Patrick J. Kelnhofer, Milwaukee, WI US
Patent application number | Description | Published |
---|---|---|
20110147164 | SHOPPING CART CONVEYOR WITH GATE ASSEMBLY - A conveyor for moving a shopping cart between a first location and a second location. The conveyor including a movable conveyor that is adapted to engage and move the shopping cart along a path, and a gate assembly including a door that is movable between an open position allowing passage of the shopping cart along the path, and a closed position inhibiting passage of the shopping art along the path. The door is adapted to move from the closed position to the open position as the shopping cart approaches, and is adapted to move back to the closed position before the shopping cart has passed the door. | 06-23-2011 |