公开(公告)号：US06484796B2

公开(公告)日：2002-11-26

申请号：US10060085

申请日：2002-01-31

申请人： Walter Demuth ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagen Mittelstrass ,  Harald Raiser ,  Jochen Schumm ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

发明人： Walter Demuth ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagen Mittelstrass ,  Harald Raiser ,  Jochen Schumm ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

IPC分类号： F28F902

CPC分类号： F28F9/18 ,  F28D1/0478 ,  F28F9/0214 ,  F28F9/0243 ,  F28F2220/00

摘要： A heat-exchanger tube block is disclosed having at least two header tubes (6, 7), which are C-shaped in cross section and each of which has a continuous longitudinal slot (10, 11). Flat tubes (2a, 2b) are inserted into the header-tube longitudinal slots. A cover-plate element (12) is provided which has a plurality of C-shaped openings and is fitted over one end of the at least two header tubes, so that the header tubes respectively fit into one of the openings and are secured in a fluid-tight manner. The tube-block can be used, for example, in an evaporator of CO2 air-conditioning installations for a motor vehicle.

摘要翻译： 公开了一种具有至少两个集管（6,7）的热交换器管块，其横截面为C形，并且每个具有连续的纵向槽（10,11）。 扁平管（2a，2b）插入集管纵向槽中。 提供了一种盖板元件（12），其具有多个C形开口并且装配在至少两个集管的一端上，使得集管被分别装配到一个开口中并固定在 流畅的方式。 管块可以用于例如用于机动车辆的二氧化碳空调设备的蒸发器中。

公开(公告)号：US06772518B2

公开(公告)日：2004-08-10

申请号：US10051374

申请日：2002-01-22

申请人： Walter Demuth ,  Wolfgang Geiger ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagen Mittelstrass ,  Harald Raiser ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

发明人： Walter Demuth ,  Wolfgang Geiger ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagen Mittelstrass ,  Harald Raiser ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

IPC分类号： B21D5138

CPC分类号： F28F9/18 ,  B21D28/28 ,  F28F9/0202 ,  F28F9/0214 ,  F28F9/16 ,  F28F2265/32 ,  Y10T29/49373 ,  Y10T29/49389 ,  Y10T29/49391 ,  Y10T29/49995 ,  Y10T29/49996

摘要： The invention relates to a method for forming at least one flat-tube insertion slot in a header tube. A sawcut is introduced into the header tube during a sawing step, and the slot is configured, during a subsequent punching step, by means of a slot punch, which punches into the region of the sawcut. A rimmed opening can be configured during the punching step by using a slot punch with a larger width and/or length relative to the sawcut. The sawcut is preferably introduced to a depth less that the wall thickness of the header tube. The respective web region(s) between chamber of a multi-chamber header tube can be compressed during the punching operation to a level lower than that of a header-tube wall region functioning as a flat-tube insertion stop, in order to form a chamber-connecting duct.

摘要翻译： 本发明涉及一种用于在集管中形成至少一个扁平管插入槽的方法。 在锯切步骤期间，锯切被引入到管头管中，并且在随后的冲压步骤期间，槽被构造成通过冲压入锯切区域的槽冲头。 通过使用相对于锯切具有较大宽度和/或长度的狭槽冲孔机，可以在冲压步骤期间配置边框开口。 锯切优选地被引入到小于集管的壁厚的深度。 多孔集管的腔室之间的相应腹板区域可以在冲压操作期间被压缩到比用作平管插入止动件的头管壁壁区域的水平低的水平面，以便形成 室连接管道。

公开(公告)号：US07146819B2

公开(公告)日：2006-12-12

申请号：US10774509

申请日：2004-02-10

申请人： Walter Demuth ,  Rainer Heilig ,  Volker Kirschner ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagen Mittelstrass ,  Harald Raiser ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

发明人： Walter Demuth ,  Rainer Heilig ,  Volker Kirschner ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagen Mittelstrass ,  Harald Raiser ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

IPC分类号： G01K13/00 ,  F25B45/00 ,  F25B41/00

CPC分类号： B60H1/00978 ,  B60H1/3225 ,  F25B9/008 ,  F25B45/00 ,  F25B49/005 ,  F25B2309/061 ,  F25B2500/222 ,  F25B2600/17 ,  F25B2700/04 ,  F25B2700/1931 ,  F25B2700/2106 ,  F25B2700/21161 ,  F25B2700/21173 ,  F25B2700/21174 ,  F25B2700/21175

摘要： The invention relates to a method of refrigerant level monitoring in a refrigerant circuit of an air-conditioning or heat-pump system having a compressor and a refrigerant which may, depending on the operating point, be operated in the supercritical range. The method includes standstill level monitoring with the compressor switched off and/or in-operation level monitoring with the compressor switched on. In the case of in-operation level monitoring, the refrigerant overheat (dTü) at the evaporator is registered and, in the event of excessive overheat, it is concluded that there is underfilling. At a standstill, the pressure and temperature of the refrigerant are registered, and it is concluded that there is an improper refrigerant filling level if the pressure (pKM) lies below a minimum pressure value (pmin) or the temperature (TKM) lies above a maximum saturation temperature value (TS) with the pressure being outside a predefinable intended pressure range ([pu,po]).

摘要翻译： 本发明涉及一种具有压缩机和制冷剂的空调或热泵系统的制冷剂回路中的制冷剂液位监测方法，该方法可根据工作点在超临界范围内运行。 该方法包括在压缩机接通的情况下关闭压缩机和/或在操作水平监控的停止液位监控。 在运行状态监控的情况下，蒸发器中的制冷剂过热（dTü）被注册，如果发生过热过热，则认为是处于不足的状态。 在停止状态下，记录制冷剂的压力和温度，并且如果压力（p> KM）低于最小压力值（p min ）或温度（T KM）高于最大饱和温度值（T S S S S S），其中压力在预定的预期压力范围之外（ [p u u，，。。。]）。

公开(公告)号：US06708508B2

公开(公告)日：2004-03-23

申请号：US10012027

申请日：2001-12-11

申请人： Walter Demuth ,  Rainer Heilig ,  Volker Kirschner ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagen Mittelstrass ,  Harald Raiser ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

发明人： Walter Demuth ,  Rainer Heilig ,  Volker Kirschner ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagen Mittelstrass ,  Harald Raiser ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

IPC分类号： F25B4902

CPC分类号： B60H1/00978 ,  B60H1/3225 ,  F25B9/008 ,  F25B45/00 ,  F25B49/005 ,  F25B2309/061 ,  F25B2500/222 ,  F25B2600/17 ,  F25B2700/04 ,  F25B2700/1931 ,  F25B2700/2106 ,  F25B2700/21161 ,  F25B2700/21173 ,  F25B2700/21174 ,  F25B2700/21175

摘要： The invention relates to a method of refrigerant level monitoring in a refrigerant circuit of an air-conditioning or heat-pump system having a compressor and a refrigerant which may, depending on the operating point, be operated in the supercritical range. The method includes standstill level monitoring with the compressor switched off and/or in-operation level monitoring with the compressor switched on. In the case of in-operation level monitoring, the refrigerant overheat (dTü) at the evaporator is registered and, in the event of excessive overheat, it is concluded that there is underfilling. At a standstill, the pressure and temperature of the refrigerant are registered, and it is concluded that there is an improper refrigerant filling level if the pressure (pKM) lies below a minimum pressure value (pmin) or the temperature (TKM) lies above a maximum saturation temperature value (TS) with the pressure being outside a predefinable intended pressure range ([pu,po]).

摘要翻译： 本发明涉及一种具有压缩机和制冷剂的空调或热泵系统的制冷剂回路中的制冷剂液位监测方法，该方法可根据工作点在超临界范围内运行。 该方法包括在压缩机接通的情况下关闭压缩机和/或在操作水平监控的停止液位监控。 在运行状态监控的情况下，蒸发器中的制冷剂过热（dTü）被注册，如果发生过热过热，则认为是处于不足的状态。 在停止状态下，记录制冷剂的压力和温度，并且如果压力（pKM）低于最小压力值（pmin）或温度（TKM）位于上方 压力超出预定的预期压力范围（[pu，po]）的最大饱和温度值（TS）。

公开(公告)号：US06705386B2

公开(公告)日：2004-03-16

申请号：US09971122

申请日：2001-10-05

申请人： Walter Demuth ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagan Mittelstrass ,  Harald Raiser ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

发明人： Walter Demuth ,  Martin Kotsch ,  Hans-Joachim Krauss ,  Hagan Mittelstrass ,  Harald Raiser ,  Michael Sickelmann ,  Karl-Heinz Staffa ,  Christoph Walter

IPC分类号： B60H100

CPC分类号： F28D1/0478 ,  F25B39/00 ,  F25B2309/061 ,  F28D2021/0073 ,  F28F9/0214

摘要： The invention relates to a serpentine heat exchanger having a first serpentine tube block (12a) comprising one or more adjacent first serpentine tube sections with parallel through-flow and a second serpentine tube block (12b) disposed behind the first and comprising one or more adjacent second serpentine tube sections with parallel through-flow. According to the invention, at least one of the second serpentine tube sections is connected in series for flow purposes via a diversion section (10, 11) to a first serpentine tube section lying adjacent thereto.

摘要翻译： 本发明涉及一种蛇形热交换器，其具有第一蛇形管块（12a），该第一蛇形管块包括一个或多个相邻的第一蛇形管段和第二蛇形管块， 具有平行通流的第二蛇形管段。 根据本发明，至少一个第二蛇形管部分经由分流部分（10,11）串联连接到流动目的地，并与其相邻的第一蛇形管部分连接。

公开(公告)号：US06953325B2

公开(公告)日：2005-10-11

申请号：US10337242

申请日：2003-01-06

申请人： Georg Weber ,  Michael Sickelmann ,  Tilo Schäfer ,  Christoph Walter ,  Hans-Joachim Krauss ,  Harald Raiser ,  Frank Obrist

发明人： Georg Weber ,  Michael Sickelmann ,  Tilo Schäfer ,  Christoph Walter ,  Hans-Joachim Krauss ,  Harald Raiser ,  Frank Obrist

IPC分类号： F04B49/10 ,  B60H1/32 ,  F04B27/10 ,  F04B27/18 ,  F25B1/00 ,  F04B1/26

CPC分类号： F04B27/1036 ,  F04B27/1081 ,  F04B27/1804 ,  F04B2027/185 ,  F04B2027/1872 ,  F04B2027/189 ,  F04B2027/1895 ,  Y10T137/7849 ,  Y10T137/7939

摘要： A safety device limits the pressure in an axial-piston compressor with variable piston displacement. The compressor has as wobble plate or swash plate whose tilt angle can be variably controlled by the pressure differential between the high pressure in the discharge pressure zone and the pressure in the piston-drive chamber. The safety device consists of a valve arranged in a connector channel between the discharge pressure zone and the pressure zone of the piston-drive chamber. When the discharge pressure exceeds a given pressure limit, the safety device responds by allowing an increased flow of pressure medium from the discharge pressure zone to the piston-drive chamber. The influx of pressure medium into the piston-drive chamber causes a reduction of the tilt angle of the swash plate or wobble plate.

摘要翻译： 安全装置限制了具有可变活塞位移的轴向 - 活塞式压缩机中的压力。 压缩机具有摇摆板或斜盘，其倾斜角度可以通过排出压力区域中的高压与活塞驱动室中的压力之间的压力差来可变地控制。 安全装置由布置在排出压力区域和活塞驱动室的压力区域之间的连接器通道中的阀组成。 当排出压力超过给定的压力极限时，安全装置通过允许压力介质从排出压力区域到活塞驱动室的增加的流动来响应。 压力介质流入活塞驱动室会导致斜盘或摆盘的倾斜角度的减小。

公开(公告)号：US06434953B1

公开(公告)日：2002-08-20

申请号：US09817222

申请日：2001-03-27

申请人： Herbert Bimboes ,  Harald Raiser ,  Wolfgang Schmidt ,  Michael Sickelmann

发明人： Herbert Bimboes ,  Harald Raiser ,  Wolfgang Schmidt ,  Michael Sickelmann

IPC分类号： F25B4500

摘要： The invention relates to a filling device for motor vehicle air-conditioning systems which can be operated with harmless and natural refrigerants, in particular CO2. The filling device is to have a high safety standard, while at the same time being simple to operate and having a cost-effective makeup. For this purpose, the filling device comprises a connection (12) for connecting the device (10) to the air-conditioning system, a drainage line (18), containing a drainage valve (24), for draining off the refrigerant of the air-conditioning system in a defined manner, a pumping-off line (20) which has a pump (36) and is connected to the connection (12), for completely pumping off refrigerant residues and any other impurities, and a refrigerant feed line (22), connected to the connection (12), for filling the air-conditioning system with refrigerant from a refrigerant reservoir (44).