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    • 13. 发明申请
    • PUMP IMPELLER
    • 泵叶轮
    • WO2018069692A1
    • 2018-04-19
    • PCT/GB2017/053060
    • 2017-10-10
    • ASPEN PUMPS LIMITED
    • MABON, Jack Lawrence
    • F04D9/00F04D29/22
    • F04D9/003F04D29/2216F04D29/2255F04D29/2288
    • In summary, there is provided an impeller (120) for a centrifugal pump for pumping liquid. The impeller (120) has an axial direction about which the impeller is arranged to rotate and a radial direction transverse to the axial direction. The impeller (120) comprises: a first shroud portion (126); a second shroud portion (124) axially spaced from the first shroud portion (126); and at least one vane (128) extending radially outward between the first shroud portion (126) and the second shroud portion (124). The second shroud portion (124) defines at least one open region (134) radially inward of a radial boundary of the first shroud portion (126).
    • 总之,提供了一种用于泵送液体的离心泵的叶轮(120)。 叶轮(120)具有叶轮布置成围绕其旋转的轴向方向和与轴向方向横切的径向方向。 叶轮(120)包括:第一护罩部分(126);第二护罩部分 与第一护罩部分(126)轴向隔开的第二护罩部分(124); 以及在第一护罩部分(126)和第二护罩部分(124)之间径向向外延伸的至少一个叶片(128)。 第二护罩部分(124)在第一护罩部分(126)的径向边界的径向内侧限定至少一个敞开区域(134)。
    • 16. 发明申请
    • FLUID PUMP
    • 流体泵
    • WO2008114045A1
    • 2008-09-25
    • PCT/GB2008/050167
    • 2008-03-10
    • HALE PRODUCTS EUROPE LIMITEDPOMFRET, Colin Thomas
    • POMFRET, Colin Thomas
    • F04D9/00
    • F04D9/006
    • A dual pressure water pump (10) comprising a pump body (12), a low pressure impeller (16), a high pressure impeller (18), a pump priming system (20), a pump priming conduit (22) and a rear wear ring (24). The high pressure impeller (18) is provided within a cavity (32), defined by an impeller recess (34) and a cover plate (36). The rear wear ring (24) is provided between the low pressure impeller (16) and the inboard end of the cover plate (36). The pump priming conduit (22) comprises: first and second axial bores (42, 44) through the pump body (12); a radial bore (46) and two axial holes (48, 50) through the cover plate (36); an axial hole (52) through the rear wear ring (24); a cavity (54) between the rear wear ring (24) and the low pressure impeller (16); and axial holes (56) through the low pressure impeller (16), connecting the cavity (54) to the suction side of the low pressure impeller (16).
    • 一种双压力水泵(10),包括泵体(12),低压叶轮(16),高压叶轮(18),泵起动系统(20),泵起动导管(22)和后 磨环(24)。 高压叶轮(18)设置在由叶轮凹部(34)和盖板(36)限定的空腔(32)内。 后耐磨环(24)设置在低压叶轮(16)和盖板(36)的内侧端之间。 泵启动管道(22)包括:通过泵体(12)的第一和第二轴向孔(42,44); 径向孔(46)和穿过盖板(36)的两个轴向孔(48,50); 通过后磨损环(24)的轴向孔(52); 在后耐磨环(24)和低压叶轮(16)之间的空腔(54); 和通过低压叶轮(16)的轴向孔(56),将空腔(54)连接到低压叶轮(16)的吸入侧。
    • 17. 发明申请
    • SELF PRIMING CENTRIFUGAL PUMP
    • 自我引导离心泵
    • WO2003001065A1
    • 2003-01-03
    • PCT/IT2002/000419
    • 2002-06-25
    • BIONDI, RenzoMENEGONI, EnricoRAMACCIOTTI, Romeo
    • RAMACCIOTTI, Romeo
    • F04D9/00
    • F04D9/06F04D9/048
    • A centrifugal pump comprising a pump body (1) housing an impeller (3) keyed onto a motor shaft (4) and provided with a suction mouth (7) and a discharge mouth (8) capable of being made to communicate with, respectively, a suction pipe (9) and a discharge pipe (10). Between the suction mouth (7) and the suction pipe (9) there is provided a chamber (22) that communicates with a tank (11) situated at a level higher than the level of the pump, said tank being interposed between the discharge mouth (8) and the discharge pipe (10) and in communication with both of them and communicating also with the chamber (22) through a recirculation duct (28) having a section smaller than the section of the suction pipe (9). Between the tank (11) and the chamber (22) there is also provided means (13) for cutting off the flow that are controlled by the pressure existing in the tank to automatically cause the liquid to be recirculated in the tank to automatically cause the liquid to be recirculated through the chamber 822) and into the pump whenever the pressure in the tank drops below a predetermined value.
    • 一种离心泵,其包括容纳键入电动机轴(4)并设置有吸嘴(7)和排出口(8)的叶轮(3)的泵体(1),所述吸嘴能够分别与所述泵体 吸入管(9)和排出管(10)。 在吸嘴(7)和抽吸管(9)之间设有一个与位于高于泵水平高度的罐(11)连通的腔室(22),所述罐体位于排出口 (8)和排放管(10)连通并且与它们连通并且通过具有小于吸入管(9)的部分的部分的再循环管道(28)与腔室(22)连通。 在罐(11)和室(22)之间,还设置有用于切断由存在于罐中的压力控制的流动的装置(13),以自动地使液体在罐中再循环,以自动地引起 每当罐中的压力下降到预定值以下时,进入泵中。
    • 18. 发明申请
    • PULP PUMP
    • 喷油泵
    • WO99066209A1
    • 1999-12-23
    • PCT/SE1999/001002
    • 1999-06-10
    • F04D9/04F04C19/00F04C23/00F04D7/04F04D9/00
    • F04D7/045F04C19/00F04C23/005F04D29/622F05B2210/132
    • A centrifugal pump for pumping a pulp suspension where the pump comprises a housing (10) with an inlet and an outlet for the pulp suspension, and an impeller on a rotary shaft (13) with pump blades (15) extending from a hub (16) outward along a wheel disk (17). Openings (19) for the discharge of gas are formed in the wheel disk (17). The hub (16) behind the wheel disk (17) is provided with vacuum pump blades (20), which are surrounded by a vaccum pump housing comprising an outer cylindric wall (22), which is eccentric in relation to the vacuum pump blades (20), and a rear wall (23) with suction port (24) and, respectively, exhaust port (25) for gas. The vacuum pump housing is axially movable for adjusting a gap (31) between the hub (16) and outer wall (22). A gas passage (29) is located outside the outer wall (22) for communication between the openings (19) in the wheel disk (17) and gas suction port (24). The gas exhaust port (25) is connected to a chamber (26) for gas evacuation.
    • 一种用于泵送纸浆悬浮液的离心泵,其中所述泵包括具有用于纸浆悬浮液的入口和出口的壳体(10),以及具有从叶片(16)延伸的泵叶片(15)的旋转轴(13)上的叶轮 )沿着轮盘(17)向外。 用于排出气体的开口(19)形成在轮盘(17)中。 轮盘(17)后面的轮毂(16)设置有真空泵叶片(20),真空泵叶片(20)由真空泵壳体包围,该真空泵壳体包括相对于真空泵叶片偏心的外圆筒壁(22) 20)和具有吸入口(24)的后壁(23)和分别用于气体的排气口(25)。 真空泵壳体可轴向移动以调节轮毂(16)和外壁(22)之间的间隙(31)。 气体通道(29)位于外壁(22)的外侧,用于在轮盘(17)中的开口(19)和气体吸入口(24)之间连通。 排气口(25)连接到用于排气的室(26)。