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公开(公告)号：EP0701061A1
公开(公告)日：1996-03-13
申请号：EP95306103.3
申请日：1995-08-31
摘要： A pump unit includes a suction pump and a driving mechanism for driving the suction pump. The suction pump has a pump body provided with a suction port and a discharge port which are axially spaced, and a first piston and a second piston slidably fitted in the pump body to form a suction chamber therebetween. In operation, the driving mechanism moves the first piston away from the second piston to expand the suction chamber so that a negative pressure prevails in the suction chamber and ink is suctioned through the suction port into the suction chamber; moves both the pistons at the same moving speed until the suction chamber is expanded to a predetermined extent, the suction port is closed by the second piston and the first piston opens the discharge port; moves the first piston in the reverse direction until the same comes into contact with the second piston to discharge the ink suctioned into the suction chamber through the discharge port; and moves both the pistons in the reverse direction to return the pistons to their initial position. The pump housing may be of a cylindrical shape or an annular shape. A suction pump in a modification may be provided with a plurality of pairs of pistons forming a plurality of suction chambers each provided with a suction port and a discharge port.
摘要翻译： 泵单元包括抽吸泵和用于驱动抽吸泵的驱动机构。 所述抽吸泵具有设置有轴向隔开的吸入口和排出口的泵体，以及可滑动地嵌合在所述泵体内的第一活塞和第二活塞，以在其间形成吸入室。 在操作中，驱动机构使第一活塞从第二活塞移开，使吸气室膨胀，从而在吸入室中产生负压，油墨通过吸入口吸入吸入室; 以相同的移动速度移动两个活塞直到吸入室膨胀到预定的程度，吸入口被第二活塞关闭，第一活塞打开排出口; 使第一活塞沿相反方向移动，直到第一活塞与第二活塞接触，以通过排出口排出吸入吸入室的油墨; 并使活塞沿相反方向移动，以将活塞返回到其初始位置。 泵壳体可以是圆柱形或环形形状。 变型中的抽吸泵可以设置有多个形成多个抽吸室的活塞对，每个抽吸室设有吸入口和排出口。
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42.发明公开Verfaren zur Bestimmung des Schliesspunktes eines Pumpenkolbens gegenüber einer Querbohrung im zugehörigen Pumpenzylinder 失效Verfaren用于确定Schliesspunktes的泵活塞相对于一个横向孔相关联的泵缸英寸
公开(公告)号：EP0177715A2
公开(公告)日：1986-04-16
申请号：EP85110244.2
申请日：1985-08-16
申请人： ROBERT BOSCH GMBH
发明人： Abt, Jügen, Dipl.-Ing. (FH) , Bollhagen, Heins , Handtmann, Dieter, Dr. Dipl.-Phys. , Kuhn, Ulrich, Dr. Dipl.-Phys. , Stumpf, Sybille
CPC分类号： F02M65/002 , F04B51/00 , F04B2201/0201 , F04B2201/0804 , F04B2203/0209 , F04B2203/0211 , F04B2205/01 , F04B2205/08 , F04B2205/09 , F04B2205/13
摘要： Das vorgeschlagene Verfahren dient zur Ermittlung des Schließpunktes eines Pumpenkolbens (12), insbesondere einer Einspritzpumpe, gegenüber einer Durchlaßbohrung im zugehörigen Zylinder (14). Nähert sich die Kante des Pumpenkolbens dem Schließpunkt, so entsteht ein zunehmend kleiner werdender Drosselquerschnitt. Bei der hierbei erfolgenden Axialbewegung des Kolbenelements werden am Anfang und Ende einer bestimmten Wegstrecke (s,, s,) die hierbei abströmende Druckmittelmenge (Q 1 , Q 2 ) gemessen. Aufgrund einer bestimmten, zu ermittelnden Formel läßt sich auf den Schließpunkt extrapolieren. Als Druckmedium wird Druckluft verwendet. Das vorgeschlagene Verfahren ist sehr genau, und der erforderliche Geräteaufwand ist gering.
摘要翻译： 所提出的方法用于一泵活塞（12），特别是喷射泵的关闭点的确定，与相关联的气缸（14）的通孔相对于一个。 泵活塞的边缘接近闭合点，其结果是逐渐减小的扼流圈的横截面。 在采取所述活塞件的地方轴向运动在这种情况下在开始和特定路径（S2 S1）的端部的流动的压力介质的量（Q1，Q2）的情况下进行测量。 由于某种公式来确定可以外推到闭合点。 由于压力被用于介质压缩空气。 该方法是非常准确的，以及必要的设备成本也低。
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公开(公告)号：EP0001463A1
公开(公告)日：1979-04-18
申请号：EP78200201.8
申请日：1978-09-21
摘要： The invention relates to a plunger pump comprising a housing, a plunger adapted to reciprocate in a compression chamber provided in the housing and an inlet port and an outlet port for the inlet and outlet respectively of fluid to and from the compression chamber respectively, the inlet port being closed by the plunger at the beginning of the compression stroke wherein portions of the plunger located on both sides of the plunger portion actively operating in the compression chamber are guided in sealing relationship in portions of the housing so that the compression chamber is bounded only by one side of the plunger and an opposite portion of the pump.
摘要翻译： 本发明涉及一种柱塞泵，其包括壳体，柱塞，其适于在设置在壳体中的压缩室中往复运动，并且分别具有用于分别进入和离开压缩室的流体的入口和出口的入口和出口，入口 端口在压缩冲程开始时由柱塞封闭，其中位于压缩室中主动操作的柱塞部分两侧的柱塞的部分在壳体的部分中以密封关系被引导，使得压缩室仅限于 通过柱塞的一侧和泵的相对部分。
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公开(公告)号：EP3732375B1
公开(公告)日：2021-07-07
申请号：EP18816097.2
申请日：2018-12-17
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公开(公告)号：EP3580455A1
公开(公告)日：2019-12-18
申请号：EP17822592.6
申请日：2017-12-11
申请人： NIDEC GPM GmbH
发明人： PAWELLEK, Franz , NICKEL, Conrad
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公开(公告)号：EP3050585B1
公开(公告)日：2019-04-10
申请号：EP15152703.3
申请日：2015-01-27
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公开(公告)号：EP3339398B1
公开(公告)日：2019-01-30
申请号：EP17205119.5
申请日：2017-12-04
发明人： ROUBAUD, Anne , ROUSSELY, Julien
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公开(公告)号：EP2939699B1
公开(公告)日：2018-12-26
申请号：EP15160726.4
申请日：2015-03-25
申请人： Heraeus Medical GmbH
发明人： Vogt, Sebastian
CPC分类号： F04B9/12 , A61M3/0254 , A61M3/0258 , F04B7/02
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公开(公告)号：EP2597319B1
公开(公告)日：2018-09-19
申请号：EP11809220.4
申请日：2011-06-21
发明人： YI, Xiaogang , LIU, Yongdong , CHEN, Bingbing
CPC分类号： F04B7/04 , F15B15/222
摘要： A hydraulic oil cylinder has a cushion collar (4), which is sleeved in the cushion position of a piston rod and can axially slide along the piston rod (3). In the oil cylinder cavity between an oil hole (1-1) of the rod cavity and the terminal position of the piston end surface of the rod cavity during the piston (6) extending movement, a sealing end surface of the rod cavity (1-2) is provided, which can block the cushion collar and contact with the first end surface of the cushion collar to form a sealing surface. At least a throttle oil channel (3-5) is provided between the cushion collar and the piston rod. During the piston extending movement, from the moment that the first end surface of the cushion collar contacts with the sealing end surface of the rod cavity and a sealing surface is formed to the moment that the piston reaches the terminal position of the extending movement, the hydraulic oil at the side of the sealing surface close to the piston can be discharged towards the oil hole of the rod cavity through the throttle oil channel. The hydraulic oil cylinder has advantages of facility of manufacturing the cushion structure and good effect. The hydraulic oil cylinder can be used in a hydraulic cushion system, an excavator and a concrete pump truck.
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50.发明公开HYDRAULIC OIL CYLINDER, CORRELATIVE DEVICE THEREOF, HYDRAULIC CUSHION SYSTEM, EXCAVATOR AND CONCRETE PUMP TRUCK 审中-公开液压汽缸油，相关设备，水电冷暖坐垫，疏浚和搅拌机
公开(公告)号：EP2597319A4
公开(公告)日：2015-07-15
申请号：EP11809220
申请日：2011-06-21
发明人： YI XIAOGANG , LIU YONGDONG , CHEN BINGBING
CPC分类号： F04B7/04 , F15B15/222
摘要： A hydraulic oil cylinder has a cushion collar (4), which is sleeved in the cushion position of a piston rod and can axially slide along the piston rod (3). In the oil cylinder cavity between an oil hole (1-1) of the rod cavity and the terminal position of the piston end surface of the rod cavity during the piston (6) extending movement, a sealing end surface of the rod cavity (1-2) is provided, which can block the cushion collar and contact with the first end surface of the cushion collar to form a sealing surface. At least a throttle oil channel (3-5) is provided between the cushion collar and the piston rod. During the piston extending movement, from the moment that the first end surface of the cushion collar contacts with the sealing end surface of the rod cavity and a sealing surface is formed to the moment that the piston reaches the terminal position of the extending movement, the hydraulic oil at the side of the sealing surface close to the piston can be discharged towards the oil hole of the rod cavity through the throttle oil channel. The hydraulic oil cylinder has advantages of facility of manufacturing the cushion structure and good effect. The hydraulic oil cylinder can be used in a hydraulic cushion system, an excavator and a concrete pump truck.
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