公开(公告)号：EP0216999A3

公开(公告)日：1988-07-20

申请号：EP86108080

申请日：1986-06-13

申请人： Cheng, Anqiang

发明人： Cheng, Anqiang

IPC分类号： F04C02/18 ,  F04C15/00

CPC分类号： F04C15/0019

摘要： On the basis of asymmetry theory the low-pressure zone is enlarged and the high-pressure zone is reduced; the performance of said gear pump or gear motor is optimized by means of an asymmetric axial and radial floating compensation device (5); the realization of axial and radial floating compensation provides higher volumetric efficiency; by adopting the integral structure higher mechanical efficiency is obtained and the noise is reduced; the stable radial floating device makes the high-pressure radial sealing practicable. The high-pressure zone is reduced, the radial force is reduced and the lifetime of said gear pump or gear motor is prolonged. With the invention, the gear type hydraulic machinery can be pressurized up to 321 kg·cm 2 level.

摘要翻译： 在不对称理论的基础上，低压区扩大，高压区减小; 通过不对称轴向和径向浮动补偿装置（5）来优化所述齿轮泵或齿轮马达的性能。 实现轴向和径向浮动补偿提供更高的体积效率; 通过采用整体结构，获得较高的机械效率，降低噪声; 稳定的径向浮动装置使高压径向密封切实可行。 高压区减小，径向力减小，齿轮泵或齿轮电机的寿命延长。 利用本发明，齿轮式液压机械可以加压到321kg cm 2以上。

公开(公告)号：EP0183422A3

公开(公告)日：1987-06-03

申请号：EP85308193

申请日：1985-11-11

申请人： BORG-WARNER CORPORATION

发明人： Underwood, Herbert Norman

IPC分类号： F04C02/18

CPC分类号： F04C2/14

摘要： An offset three-gear, two-system pump (10a) includes first (14a), second (20a), and third (24a) overlapping chambers. First inlet (46a) and low-pressure outlet ports (48a) communicate with the first and second chamers, and second inlet (50a) and high-pressure outlet ports (52a) communicate with the first and third chambers. The first chamber has a short wall portion (16a) extending from the low-pressure outlet port to the second inlet port, and a long wall portion extending from the high-pressure outlet port to the first inlet port. First (28a), second (34a), and third (40a) gears are respectively rotatable in the chambers. The first and second gears form a low-pressure gear set, and the first and third gears form a high-pressure gear set. A small number of first gear teeth are cooperable with the short wall portion and a large number of first gear teeth are cooperable with the long wall portion to effect sealing against leakage from the pressure ports to the inlet ports.

公开(公告)号：EP0169307A3

公开(公告)日：1987-01-07

申请号：EP85103674

申请日：1985-03-27

申请人： NORDSON CORPORATION

发明人： Klein, Richard G. ,  Schmitkons, James W.

IPC分类号： F04C02/18 ,  F04C13/00 ,  F04B15/02 ,  F04B15/04

CPC分类号： B01F5/14 ,  B01F3/04099 ,  B01F2215/0062 ,  F04C15/0042

摘要： A hot melt adhesive pump having a first stage gear pump for metering molten hot melt adhesive into a second stage gear pump where gas is mixed and driven into solution with the adhesive is provided with ports extending between opposed gear faces permitting the leakage of adhesive under pressure between gear faces. Pressure imbalances which might otherwise exist due to the accumulation of hot melt adhesive in an interface between the gear faces and adjacent surfaces, e.g., a pair of plates, between which the gears are sandwiched, are alleviated because adhesive under pressure in this interface can pass through the ports, thereby balancing the thrust forces on the opposed gear faces. The result is reduced gear and end plate wear and increased pump life.

摘要翻译： 一种具有第一级齿轮泵的热熔胶泵，其用于将熔融的热熔粘合剂计量到第二级齿轮泵中，其中气体与粘合剂混合并驱动到溶液中，其具有在相对的齿面之间延伸的孔，允许粘合剂在压力下泄漏 齿轮面之间。 由于热熔粘合剂在齿轮面和相邻表面之间的界面中积聚的压力不平衡（例如，夹在齿轮之间的一对板）被缓解，因为在该界面中的压力下的粘合剂可以通过 从而平衡相对的齿轮面上的推力。 结果是齿轮和端板磨损减少，泵寿命延长。