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Lurken
Franz Lurken, Kempten DE
| Patent application number | Description | Published |
|---|---|---|
| 20100050660 | Refrigerated Vehicle with an External Refrigeration Module and a Refrigeration Method - The invention relates to a mobile refrigerated vehicle comprising a refrigerated chamber housing for at least one refrigerated chamber contained therein, a tank for liquefied gas, an evaporator for the evaporation of the liquefied gas during the delivery of cold to the refrigerated chamber and an exhaust pipe for the evaporated gas, in conjunction with which the evaporator is arranged outside the refrigerated chamber; and a method for refrigerating a refrigerated chamber of a mobile refrigerated vehicle comprising the following process stages: removal of a liquefied gas from a tank and supply of the gas into an evaporator arranged outside the refrigerated chamber; removal of a flow of cooling air to be refrigerated from the refrigerated chamber, evaporation of the liquefied gas in the evaporator and utilization of at least one part of the cold content for the refrigeration of the flow of cooling air; introduction of the refrigerated flow of cooling air into the refrigerated chamber. The invention is characterized in that dependable and efficient refrigeration of products can be achieved in conjunction with particularly high operational reliability and energy-saving. | 03-04-2010 |
| 20100251751 | Method for Monitoring the Gas Tightness of a Cooling System for a Refrigerated Vehicle and for Operating the Same and a Cooling System for a Refrigerated Vehicle and a Refrigerated Vehicle - The invention relates to a method for monitoring the gas tightness of a cooling system for a refrigerated vehicle comprising the following steps: recording of a chronological temperature sequence at least at a first point in the cooling system and the determination of any change in the temperature at the first point within a first time interval and comparison of the change with a first reference value and the triggering of a first warning signal in the event that the change exceeds the first reference value; and/or subjecting a line section of the cooling system to a positive pressure and blocking this line section and recording a chronological pressure sequence at least at a first point in the line section and the determination of any change in the pressure in the second point within a second time interval and comparison of the change with a second reference value and the triggering of a second warning signal in the event that the change exceeds the second reference value. The invention also relates to a method for operating a cooling system, a cooling system and a refrigerated vehicle, in conjunction with which use is made of the method according to the invention. The invention is characterized by high operating safety, operating reliability and economic viability. | 10-07-2010 |
Franz Lurken, Franz DE
| Patent application number | Description | Published |
|---|---|---|
| 20090277188 | Heat Exchanger for a Mobile Refrigerated Vehicle - The invention relates to a heat exchanger for a mobile refrigerated vehicle having a tank for liquefied gas comprising a pipe for accepting a flow of a liquefied gas and for the evaporation of at least one part of the liquefied gas, in conjunction with which the pipe, at least in sections, exhibits a longitudinal axis, and the heat exchanger comprises an inlet side for liquefied gas and an outlet side for at least partially evaporated gas, and in conjunction with which the outlet side is connected to an exhaust pipe in such a way as to permit a flow, in conjunction with which the pipe exhibits elements in its interior for the purpose of generating turbulences in the flow or a radial phase separation. The invention is characterized in that, with the help of the elements, the thickness of a gas interface layer on a wall of the pipe, which occurs as a result of vaporization of the gas, is reduced considerably, whereby the efficiency of the heat exchanger is increased considerably. | 11-12-2009 |
Franz Lurken, Kempen DE
| Patent application number | Description | Published |
|---|---|---|
| 20110239670 | Method For Managing Access To A Confined Space With Renewal Of The Atmosphere By Means Of Forced Ventilation/Extraction And The Use Of Physical Barriers That Can Be Opened In A Variable And Controlled Manner - A method for managing access to a confined space which is cooled by the direct injection of a cryogenic fluid, comprising at least one system for closing the confined space, which can prevent access to said confined space and can be opened/closed to a variable and controllable degree, and a data acquisition and processing device. The device can: control the open or closed state of the closure system; set and control the degree to which the closure system is open/closed; ensure that a time delay (TP) is respected every time the closure system is closed, after which time delay the injection of cryogenic fluid into the space resumes; and, at the request of a user, implement the cycle for opening the closure system. The device determines the time that has elapsed (TE) in the closed position since the last closure cycle of the closure system and compares TE to TP. If TE=TP the device immediately authorizes the opening of the closure system. If TE>TP the device authorizes the opening of the closure system after a predefined waiting time. | 10-06-2011 |