-
公开(公告)号：US08511074B2
公开(公告)日：2013-08-20
申请号：US13056981
申请日：2009-05-20
CPC分类号： F28F19/00 , F28D21/0003 , F28F13/08 , F28F2215/04 , F28F2255/14
摘要： A heat transfer unit for an internal combustion engine includes a first channel with an inlet and an outlet. The first channel is configured to have a fluid to be cooled flow therethrough. The second channel is configured to have a cooling fluid flow therethrough. A partition wall(s) is disposed to separate the first channel from the second channel. Ribs extend from partition wall(s) into the first channel and are disposed in a principal flow direction of the fluid to be cooled. The second channel comprises a first section and a second section in the principal flow direction. The ribs of the first section have a first cross section in a first flow-off portion that is constant in the principal flow direction. The ribs of the second section have a second cross section in a second flow-off portion that widens in the principal flow direction.
摘要翻译： 用于内燃机的传热单元包括具有入口和出口的第一通道。 第一通道构造成具有要冷却的流体流过其中。 第二通道构造成具有冷却流体流过其中。 分隔壁设置成将第一通道与第二通道分开。 肋从分隔壁延伸到第一通道中并且被设置在待冷却流体的主流动方向上。 第二通道包括在主流动方向上的第一部分和第二部分。 第一部分的肋具有在主流动方向上恒定的第一流出部分中的第一横截面。 第二部分的肋具有在主流动方向上变宽的第二流出部分中的第二横截面。
-
公开(公告)号：US20110290446A1
公开(公告)日：2011-12-01
申请号：US13056981
申请日：2009-05-20
CPC分类号： F28F19/00 , F28D21/0003 , F28F13/08 , F28F2215/04 , F28F2255/14
摘要： A heat transfer unit for an internal combustion engine includes a first channel with an inlet and an outlet. The first channel is configured to have a fluid to be cooled flow therethrough. The second channel is configured to have a cooling fluid flow therethrough. A partition wall(s) is disposed to separate the first channel from the second channel. Ribs extend from partition wall(s) into the second channel and are disposed in a principal flow direction of the fluid to be cooled. The second channel comprises a first section and a second section in the principal flow direction. The ribs of the first section have a first cross section in a first flow-off portion that is constant in the principal flow direction. The ribs of the second section have a second cross section in a second flow-off portion that widens in the principal flow direction.
摘要翻译： 用于内燃机的传热单元包括具有入口和出口的第一通道。 第一通道构造成具有要冷却的流体流过其中。 第二通道构造成具有冷却流体流过其中。 分隔壁设置成将第一通道与第二通道分开。 肋从分隔壁延伸到第二通道中并且沿待冷却流体的主流动方向设置。 第二通道包括在主流动方向上的第一部分和第二部分。 第一部分的肋具有在主流动方向上恒定的第一流出部分中的第一横截面。 第二部分的肋具有在主流动方向上变宽的第二流出部分中的第二横截面。
-
公开(公告)号：US08403031B2
公开(公告)日：2013-03-26
申请号：US12293156
申请日：2007-01-25
IPC分类号： F28F27/02
CPC分类号： F28D7/106 , F28D9/0056 , F28D21/0003 , F28F1/022 , F28F27/02 , F28F2250/06 , F28F2255/14
摘要： A heat transmission unit includes a channel conducting a coolant, and a channel conducting a fluid to be cooled. The two channels are separated from each other by a wall provided with ribs extending therefrom into at least one of the two channels. The channel conducting the fluid to be cooled includes a fluid inlet and a fluid outlet. The channel is separated by a partition wall, arranged in flow direction, into a first and a second partial channel having a first partial inlet for fluid and a second partial inlet for fluid, and a first partial outlet for fluid and a second partial outlet for fluid. At least the first partial inlet for fluid is adapted to be shut off by a first shut-off device.
摘要翻译： 热传递单元包括导通冷却剂的通道和导通待冷却流体的通道。 两个通道由设置有从其延伸到两个通道中的至少一个的肋的壁彼此分开。 导通待冷却流体的通道包括流体入口和流体出口。 该通道由沿流动方向排列的分隔壁分隔成具有用于流体的第一部分入口和用于流体的第二部分入口的第一和第二部分通道，以及用于流体的第一部分出口和用于流体的第二部分出口 流体。 用于流体的至少第一部分入口适于被第一截止装置切断。
-
公开(公告)号：US20090183861A1
公开(公告)日：2009-07-23
申请号：US12293156
申请日：2007-01-25
IPC分类号： F28D7/00
CPC分类号： F28D7/106 , F28D9/0056 , F28D21/0003 , F28F1/022 , F28F27/02 , F28F2250/06 , F28F2255/14
摘要： Previous heat transmission units have only low cooling efficiencies in case of small fluid mass flows. According to the invention, it is proposed to configure a heat transmission unit (1) in such a manner that a channel (4) conducting the fluid to be cooled is separated, by a partition wall (14;23,24;29,30), into at least two separated partial channels (15,16), a first one of these channels being adapted to be shut off by a shut-off means (21;27;31) arranged at a first partial fluid inlet (17) of this channel. Preferably, in spite of the closed condition of this inlet cross section, full use is made of the existing cooler surface in that there is effected, by suitable arrangement of the partition walls (14;23,24;29, 30) and by further shut-off means (28;32), a deflection of the fluid mass flow in the heat transmission unit (1). A heat transmission unit of the above configuration is particularly suited for exhaust-gas recirculation in internal combustion engines; thus, an optimum cooling performance can be obtained throughout various exhaust-gas recirculation rates.
摘要翻译： 以前的传热装置在流体质量较小的情况下只有低冷却效率。 根据本发明，提出了一种传热单元（1），其特征在于，通过分隔壁（14; 23,24; 29,30 ）到至少两个分离的部分通道（15,16）中，这些通道中的第一个通道适于被布置在第一部分流体入口（17）处的切断装置（21; 27; 31） 的这个频道。 优选地，尽管该入口横截面为封闭状态，但是充分利用现有的冷却器表面，因为通过合适布置分隔壁（14; 23,24; 29,30）和进一步 切断装置（28; 32），传热单元（1）中的流体质量流的偏转。 上述结构的传热单元特别适用于内燃机中的废气再循环; 因此，可以在各种废气再循环速率中获得最佳的冷却性能。
-
公开(公告)号：US5779463A
公开(公告)日：1998-07-14
申请号：US502820
申请日：1995-07-14
IPC分类号： F01C21/08 , F01C21/10 , F04C18/344 , F04C27/00 , F04C29/02
CPC分类号： F01C21/104 , F01C21/0881 , F04C18/3441
摘要： A rotary piston pump in which a slide valve has a pivot bearing at each of its ends which supports a sliding block and wherein a theoretical slide valve length in the position in which the axes of symmetry of the shell rotor and slide valve are superimposed, is equal to the sum of the length along the slide valve measured between the pivot bearings plus two times the thickness of a sliding block measured between its pivot bearing and the wall of the shell. The sliding blocks have an outer surface with a curvature between the curvature of the outer surface of the rotor and the maximum curvature of the wall of the shell.
摘要翻译： 一种旋转活塞泵，其中滑阀在其每个端部具有支撑滑块的枢转轴承，并且其中壳体转子和滑阀的对称轴重叠的位置中的理论滑阀长度是 等于在枢轴轴承之间测量的沿着滑阀的长度的总和加上在其枢转轴承和壳的壁之间测量的滑块的厚度的两倍。 滑动块具有在转子的外表面的曲率和壳的壁的最大曲率之间具有曲率的外表面。
-
-
-
-
搜索结果
5 条记录 (耗时 0.022 秒)
