-
公开(公告)号：WO2010020249A1
公开(公告)日：2010-02-25
申请号：PCT/DK2009/000182
申请日：2009-08-18
Applicant: DANFOSS A/S , VONSILD, Asbjørn, Leth , THYBO, Claus , BRAM, Leo , SPANGBERG, Jakob
Inventor： VONSILD, Asbjørn, Leth , THYBO, Claus , BRAM, Leo , SPANGBERG, Jakob
IPC: F25B49/02
CPC classification number: F25B49/00 , F25B2700/21
Abstract: A superheat sensor (1) for sensing superheat of a fluid flowing in a flow channel (3) is disclosed. The sensor (1) comprises a flexible wall defining an interface between an inner cavity (5) having a charge fluid (6) arranged therein and the flow channel (3). The flexible wall is arranged in the flow channel (3) in thermal contact with the fluid flowing therein, and the flexible wall is adapted to conduct heat between the flow channel (3) and the inner cavity (5). Thereby the temperature of the charge fluid (6) adapts to the temperature of the fluid flowing in the flow channel (3), and the pressure in the inner cavity (5) is determined by this temperature. A first wall part (7, 14) and a second wall part (9, 16) are arranged at a variable distance from each other, said distance being defined by a differential pressure between the pressure of the charge fluid (6) and the pressure of the fluid flowing in the flow channel (3), i.e. depending on the pressure and the temperature of the fluid flowing in the flow channel (3), and thereby the superheat of the fluid. A distance sensor, e.g. comprising a permanent magnet (8) and a Hall sensor (10), measures the distance between the wall parts, and the superheat is calculated from the measured distance. The sensor (1) is suitable for use in a refrigeration system. The sensor (1) is mechanically simple and capable of determining the superheat by measuring only one parameter.
Abstract translation: 公开了一种用于感测在流动通道（3）中流动的流体的过热的过热传感器（1）。 传感器（1）包括限定在其中布置有充电流体（6）的内腔（5）和流动通道（3）之间的界面的柔性壁。 柔性壁布置在流动通道（3）中，与流过其中的流体热接触，柔性壁适于在流动通道（3）和内腔（5）之间传导热量。 由此，充电流体（6）的温度适应于在流动通道（3）中流动的流体的温度，并且内腔（5）中的压力由该温度确定。 第一壁部分（7,14）和第二壁部分（9,16）以彼此可变的距离布置，所述距离由加压流体（6）的压力和压力 在流动通道（3）中流动的流体，即取决于在流动通道（3）中流动的流体的压力和温度，从而流体的过热。 距离传感器，例如 包括永磁体（8）和霍尔传感器（10），测量壁部之间的距离，并根据测量的距离计算过热度。 传感器（1）适用于制冷系统。 传感器（1）机械简单，能够通过仅测量一个参数来确定过热。
-
公开(公告)号：WO2009146705A1
公开(公告)日：2009-12-10
申请号：PCT/DK2009/000130
申请日：2009-06-03
Applicant: DANFOSS A/S , BRAM, Leo , THYBO, Claus , LARSEN, Lars, Finn, Sloth
Inventor： BRAM, Leo , THYBO, Claus , LARSEN, Lars, Finn, Sloth
IPC: F25B39/02
CPC classification number: F25B39/028 , F25B2500/18
Abstract: A valve assembly (1) comprising an inlet opening, a distributor and an outlet part comprising at least two outlet openings. The distributor comprises an inlet part (5) fluidly connected to the inlet opening, and is arranged to distribute fluid medium received from the inlet opening to at least two parallel flow paths, preferably of a heat exchanger (3). The valve assembly (1) further comprises a first valve part and a second valve part arranged movable relative to each other in such a manner that the mutual position of the valve parts determines the fluid flow from the inlet opening to each of the outlet openings of the outlet part. Finally, the valve assembly (1) comprises a header (2) forming an integral part of the valve assembly (1). The header (2) is arranged to form an interface towards a heat exchanger (3) comprising at least two flow paths, and it provides fluid connections in such a manner that each of the outlet openings (7, 9) is fluidly connected to a flow path of a heat exchanger (3) connected to the header (2).
Abstract translation: 一种包括入口开口，分配器和包括至少两个出口开口的出口部分的阀组件（1）。 分配器包括流体地连接到入口开口的入口部分（5），并且布置成将从入口开口接收的流体介质分配到至少两个平行的流动路径，优选地为热交换器（3）。 阀门组件（1）还包括第一阀部件和第二阀部件，该第一阀部件和第二阀部件可以相对于彼此移动，使得阀部件的相互位置确定从入口开口到每个出口开口的流体流动 出口部分。 最后，阀组件（1）包括形成阀组件（1）的一体部分的集管（2）。 集管（2）被布置成形成朝向包括至少两个流动路径的热交换器（3）的界面，并且其提供流体连接，使得每个出口开口（7,9）流体地连接到 连接到集管（2）的热交换器（3）的流路。
-
公开(公告)号：WO2009146704A1
公开(公告)日：2009-12-10
申请号：PCT/DK2009/000129
申请日：2009-06-03
Applicant: DANFOSS A/S , BRAM, Leo
Inventor： BRAM, Leo
CPC classification number: F25B39/028 , F25B41/062 , F25B2500/01
Abstract: An expansion valve (1) comprising an inlet opening (10), at least two outlet openings (7), a first valve part (2) and a second valve part (4) is disclosed. The inlet opening (10) is adapted to receive fluid medium in a liquid state, and the outlet openings (7) are adapted to deliver fluid medium in an at least partly gaseous state. The first valve part (2) comprises a piston portion (3), and the second valve part (4) comprises a piston receiving portion (5) adapted to receive the piston portion (3) of the first valve part (2). The piston receiving portion (5) has at least two openings (6) formed therein, each of the openings (6) being fluidly connected to one of the outlet openings (7). The openings (6) are arranged in such a manner that each of the openings (6) in combination with the piston portion (3) defines a valve. The first valve part (2) and the second valve part (4) are arranged movably relative to each other in such a manner that the mutual position of the first valve part (2) and the second valve part (4) defines an opening degree of each of the valves.
Abstract translation: 公开了一种包括入口（10），至少两个出口（7），第一阀部分（2）和第二阀部分（4）的膨胀阀（1）。 入口开口（10）适于接收处于液体状态的流体介质，并且出口开口（7）适于以至少部分气态的状态递送流体介质。 第一阀部分（2）包括活塞部分（3），第二阀部分（4）包括适于容纳第一阀部分（2）的活塞部分（3）的活塞接收部分（5）。 活塞接收部分（5）具有形成在其中的至少两个开口（6），每个开口（6）流体地连接到出口（7）中的一个。 开口（6）以与活塞部分（3）组合的每个开口（6）限定阀的方式布置。 第一阀部分（2）和第二阀部分（4）相互相对移动地布置成使得第一阀部分（2）和第二阀部分（4）的相互位置限定开度 的每个阀。
-
公开(公告)号：EP2217871A2
公开(公告)日：2010-08-18
申请号：EP08758228.4
申请日：2008-06-17
Applicant: Danfoss A/S
Inventor： THYBO, Claus , BRAM, Leo , PAWLIK, Jens
CPC classification number: F25B41/062 , F16K11/04 , F16K11/074 , F16K11/166 , F16K31/52416 , F25B39/028 , F25B2341/0661 , F25B2600/2511
Abstract: An expansion valve (1) comprising an inlet opening (2) and a distributor (4) being arranged to distribute fluid medium received from the inlet opening to at least two parallel flow paths (3). At least two outlet openings (3) are adapted to deliver fluid in an at least partially gaseous state, and each outlet opening is fluidly connected to one of the parallel flow paths. A first valve part (7) and a second valve part (5) are arranged movably relative to each other in such a manner that the mutual position of the first valve part and the second valve part determines the opening degree of the expansion valve. Since the distributor (4) forms part of the expansion valve, it distributes the fluid medium to the parallel flow paths prior to or during expansion of the fluid medium, i.e. while the fluid medium is in a substantially liquid state. This makes it easier to control the distribution of fluid medium to the parallel flow paths in a uniform manner.
-
公开(公告)号：EP2377223B1
公开(公告)日：2018-10-24
申请号：EP09799514.6
申请日：2009-12-14
Applicant: Danfoss A/S
Inventor： JENSEN, Helge, Vandel , THYBO, Claus , BRAM, Leo , KOBBERØ, Ejner
CPC classification number: H02J3/14 , F25B2400/22 , F25D29/00 , Y02B30/765 , Y02B70/3225 , Y02B70/3275 , Y04S20/222 , Y04S20/244
Abstract: The present invention relates to a method and a system to reduce losses of energy due to ripples, especially at the power grid, the ripples being short term power shortages or excess power. The method is based on the idea of shutting off energy consuming devices during a period of power shortage, if their operation is not necessary, and optionally to turn on such energy consuming devices during periods of excess power, if energy may be stored in them, especially when energy may be stored as some physical parameter or variable, being a part of the operation of the energy consuming devices, such as the temperature of a freezer.
-
Patent Agency Ranking
公开(公告)号：EP2377223A1
公开(公告)日：2011-10-19
申请号：EP09799514.6
申请日：2009-12-14
Applicant: Danfoss A/S
Inventor： JENSEN, Helge, Vandel , THYBO, Claus , BRAM, Leo , KOBBERØ, Ejner
CPC classification number: H02J3/14 , F25B2400/22 , F25D29/00 , Y02B30/765 , Y02B70/3225 , Y02B70/3275 , Y04S20/222 , Y04S20/244
Abstract: The present invention relates to a method and a system to reduce losses of energy due to ripples, especially at the power grid, the ripples being short term power shortages or excess power. The method is based on the idea of shutting off energy consuming devices during a period of power shortage, if their operation is not necessary, and optionally to turn on such energy consuming devices during periods of excess power, if energy may be stored in them, especially when energy may be stored as some physical parameter or variable, being a part of the operation of the energy consuming devices, such as the temperature of a freezer.
Abstract translation: 本发明涉及一种减少由于波纹而引起的能量损失的方法和系统，特别是在电力网上，波纹是短期电力短缺或过剩功率。 该方法基于在电力短缺期间关闭能量消耗装置的想法，如果其不需要操作，并且可选地在多余功率期间打开这种能量消耗装置，如果能量可以存储在其中， 特别是当能量可以作为某些物理参数或变量存储时，作为能量消耗装置的操作的一部分，例如冷冻器的温度。
-
公开(公告)号：WO2011134467A2
公开(公告)日：2011-11-03
申请号：PCT/DK2011/000036
申请日：2011-04-26
Applicant: DANFOSS A/S , Funder-Kristensen, Torben , SÜSS, Jürgen , BRAM, Leo , TIEDEMANN, Thomas , Christiansen, Toke Rumohr
Inventor： Funder-Kristensen, Torben , SÜSS, Jürgen , BRAM, Leo , TIEDEMANN, Thomas , Christiansen, Toke Rumohr
CPC classification number: F25B5/02 , F25B2600/2511
Abstract: A method for operating a vapour compression system (1) is disclosed. The vapour compression system (1) comprises a compressor (2), a condenser (3), at least one expansion device (4), an evaporator (5), said evaporator (5) comprising at least two evaporator paths (5a, 5b) arranged fluidly in parallel, and a distribution device arranged to distribute refrigerant among the evaporator paths (5a, 5b). The method comprises the steps of obtaining at least two predefined distribution keys, each distribution key defining a distribution of available refrigerant among the evaporator paths (5a, 5b), detecting one or more operational settings of the vapour compression system (1), selecting one of the at least two predefined distribution keys, based on said detected operational setting(s), and distributing refrigerant among the evaporator paths (5a, 5b) in accordance with the selected predefined distribution key. The predefined distribution keys constitute pre-settings which can be selected on the basis of operational settings, such as compressor capacity, fan speed, refrigeration load or mode of operation. The vapour compression system (1) may be operated in accordance with the selected predefined distribution key, or the selected predefined distribution key may be used as a suitable starting point for an adaptive adjustment of the distribution key. An optimal distribution of the available refrigerant among the evaporator paths (5a, 5b) is quickly reached due to the pre-settings. Thereby the vapour compression system (1) can be operated in an optimal manner for most of the operating time.
Abstract translation: 公开了一种用于操作蒸气压缩系统（1）的方法。 蒸汽压缩系统（1）包括压缩机（2），冷凝器（3），至少一个膨胀装置（4），蒸发器（5），所述蒸发器（5）包括至少两个蒸发器路径（5a，5b） ）和布置成在所述蒸发器路径（5a，5b）之间分配制冷剂的分配装置。 该方法包括以下步骤：获得至少两个预定义的分配密钥，每个分配密钥限定蒸发器路径（5a，5b）中的可用制冷剂的分布，检测蒸气压缩系统（1）的一个或多个操作设置，选择一个 基于所述检测到的操作设置，根据所选择的预定分配密钥在所述蒸发器路径（5a，5b）之间分配制冷剂的至少两个预定分配密钥。 预定义的分配密钥构成可以基于诸如压缩机容量，风扇速度，制冷负载或操作模式的操作设置来选择的预设置。 蒸气压缩系统（1）可以根据所选择的预定分配密钥进行操作，或者所选择的预定分配密钥可以用作用于分发密钥的自适应调整的合适起始点。 蒸发器路径（5a，5b）中的可用制冷剂的最佳分布由于预先设定而迅速达到。 因此，蒸汽压缩系统（1）可以在大部分操作时间以最佳方式操作。
-
公开(公告)号：WO2008154919A3
公开(公告)日：2008-12-24
申请号：PCT/DK2008/000219
申请日：2008-06-17
Applicant: DANFOSS A/S , THYBO, Claus , BRAM, Leo , PAWLIK, Jens
Inventor： THYBO, Claus , BRAM, Leo , PAWLIK, Jens
Abstract: An expansion valve (1) comprising an inlet opening (2) and a distributor (4) being arranged to distribute fluid medium received from the inlet opening to at least two parallel flow paths (3). At least two outlet openings (3) are adapted to deliver fluid in an at least partially gaseous state, and each outlet opening is fluidly connected to one of the parallel flow paths. A first valve part (7) and a second valve part (5) are arranged movably relative to each other in such a manner that the mutual position of the first valve part and the second valve part determines the opening degree of the expansion valve. Since the distributor (4) forms part of the expansion valve, it distributes the fluid medium to the parallel flow paths prior to or during expansion of the fluid medium, i.e. while the fluid medium is in a substantially liquid state. This makes it easier to control the distribution of fluid medium to the parallel flow paths in a uniform manner.
-
公开(公告)号：EP2300756B1
公开(公告)日：2019-03-27
申请号：EP09757138.4
申请日：2009-06-03
Applicant: Danfoss A/S
Inventor： BRAM, Leo , THYBO, Claus , LARSEN, Lars, Finn, Sloth
IPC: F25B39/02
-
公开(公告)号：EP2564131A2
公开(公告)日：2013-03-06
申请号：EP11719450.6
申请日：2011-04-26
Applicant: Danfoss A/S
Inventor： FUNDER-KRISTENSEN, Torben , SÜSS, Jürgen , BRAM, Leo , TIEDEMANN, Thomas , CHRISTIANSEN, Toke Rumohr
CPC classification number: F25B5/02 , F25B2600/2511
Abstract: A method for operating a vapour compression system (1) is disclosed. The vapour compression system (1) comprises a compressor (2), a condenser (3), at least one expansion device (4), an evaporator (5), said evaporator (5) comprising at least two evaporator paths (5a, 5b) arranged fluidly in parallel, and a distribution device arranged to distribute refrigerant among the evaporator paths (5a, 5b). The method comprises the steps of obtaining at least two predefined distribution keys, each distribution key defining a distribution of available refrigerant among the evaporator paths (5a, 5b), detecting one or more operational settings of the vapour compression system (1), selecting one of the at least two predefined distribution keys, based on said detected operational setting(s), and distributing refrigerant among the evaporator paths (5a, 5b) in accordance with the selected predefined distribution key. The predefined distribution keys constitute pre-settings which can be selected on the basis of operational settings, such as compressor capacity, fan speed, refrigeration load or mode of operation. The vapour compression system (1) may be operated in accordance with the selected predefined distribution key, or the selected predefined distribution key may be used as a suitable starting point for an adaptive adjustment of the distribution key. An optimal distribution of the available refrigerant among the evaporator paths (5a, 5b) is quickly reached due to the pre-settings. Thereby the vapour compression system (1) can be operated in an optimal manner for most of the operating time.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.039 seconds)
