公开(公告)号：EP3091230A1

公开(公告)日：2016-11-09

申请号：EP16164342.4

申请日：2016-04-08

申请人： ROBERT BOSCH GMBH

发明人： Hendrix, Gottfried

IPC分类号： F04B49/18 ,  F04B49/16 ,  F04B1/04 ,  F04B3/00

CPC分类号： F04B49/16 ,  F04B1/0408 ,  F04B3/00 ,  F04B49/18

摘要： Offenbart ist eine hydrostatische Kolbenmaschine mit mehreren Stufenkolben, die in einem jeweils zugeordneten Zylinder geführt sind. Jeder Stufenkolben weist einen ersten Teilkolben und am Außenumfang zumindest einen gegen den ersten Teilkolben relativ bewegbaren weiteren Teilkolben auf. Jeder Zylinder weist einen ersten Arbeitsraum und zumindest einen davon durch den Stufenkolben getrennten weiteren Arbeitraum auf. Jeder Teilkolben begrenzt mit einer Arbeitsfläche einen zugeordneten Arbeitraum. Der erste Arbeitsraum ist über ein oder zwei erste Schaltventile zu- und abschaltbar, und jeder weitere Arbeitsraum ist über ein oder zwei weitere Schaltventile zu- und abschaltbar. Damit kann jeder Teilkolben des Stufenkolbens unabhängig vom anderen Teilkolben aktiviert und deaktiviert werden.

摘要翻译： 公开了一种具有多个台阶的活塞，其被一个分别分配缸中被引导的静液压活塞机。 每个差动活塞具有第一活塞部分与上外周的至少一个抵靠所述第一部分的活塞另一部分的活塞相对移动。 每个汽缸具有由阶梯状活塞单独的附加工作空间中的第一工作腔室并且它们中的至少一个。 每个部分与活塞工作表面相关联的工作腔界定。 所述第一工作空间通过打开和关闭一个或两个第一切换阀供给，且打开和关闭使用一个或两个额外的控制阀是必需的每个附加的工作空间。 使得阶梯式活塞的活塞的每一个部分可以独立于其它部分的活塞和残疾的激活。

公开(公告)号：EP2902628A4

公开(公告)日：2016-03-23

申请号：EP12885646

申请日：2012-09-25

申请人： SUN WEI

发明人： SUN WEI

IPC分类号： F04B49/18 ,  F03G7/08 ,  F04B3/00 ,  F04B5/02 ,  F04B7/00 ,  F04B9/02 ,  F04B23/06 ,  F04B49/22 ,  F04B49/24 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

CPC分类号： F04B49/18 ,  F03G7/08 ,  F04B3/00 ,  F04B5/02 ,  F04B7/0076 ,  F04B9/02 ,  F04B23/06 ,  F04B49/22 ,  F04B49/24 ,  F04B49/246 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

摘要： A reciprocating low-speed heavy-load hydraulic pump with a variable action area comprises a plurality of hydraulic cylinder units (3) and moving members (1, 2). Two ends of the hydraulic cylinder units (3) are separately connected with the moving members (1, 2) via mechanical structures. The moving members (1, 2) move relative to each other. The hydraulic cylinder unit (3) consists of a hydraulic cylinder (4), a reversing valve (5) and a one-way valve (6). The hydraulic cylinder (4), the reversing valve (5) and the one-way valve (6) are connected with each other via hydraulic pipelines. Based on different magnitudes of driving force, the hydraulic pump can proactively configure and form different combinations of hydraulic cylinder units, and further adjust the size of an equivalent action area. Therefore, even if the magnitude of the driving force changes, it can be ensured that the hydraulic pump consisting of hydraulic cylinder units outputs oil liquid with a relatively stable pressure for use by a subsequently connected system. The reciprocating low-speed heavy-load hydraulic pump with a variable action area is advantageous in high conversion efficiency, a simple system structure and good working stability.

公开(公告)号：EP2300715B1

公开(公告)日：2015-07-01

申请号：EP09737976.2

申请日：2009-04-07

申请人： Arçelik Anonim Sirketi

发明人： HACIOGLU, Bilgin ,  FIDAN, Umit

IPC分类号： F04B39/00 ,  F04B49/18 ,  F04B53/14

CPC分类号： F04B39/0005 ,  F04B49/18 ,  F04B53/14

公开(公告)号：EP2849976A1

公开(公告)日：2015-03-25

申请号：EP13725933.9

申请日：2013-05-15

申请人： ZF Friedrichshafen AG

发明人： WANNINGER, Heinz

IPC分类号： B60T10/02 ,  F04C14/22

CPC分类号： F04B49/18 ,  B60T10/02 ,  F04C2/332 ,  F04C2/344 ,  F04C14/226 ,  F16H57/0436

摘要： A pump (30) is formed with a pressure chamber (42) and a control ring (38) supported in a pivotable manner around a pivot axis (40) and performing a pivot movement, said ring being pivotable around a deflection angle with the pivot movement. In the pressure chamber (42) of the pump (30) an opening (50, 50a, 50b, 50c, 50d) is provided which the control ring (38) opens or closes to various extents with the pivot movement. With a hydrodynamic retarder (16) a differential lubrication and cooling of at least the bearings (22) in braking operation and in non-braking operation of the retarder (16) can be effected with such a pump (30), which supplies at least bearings (22) for rotatable parts of the retarder (16) with lubricant and coolant.

公开(公告)号：EP2300715A1

公开(公告)日：2011-03-30

申请号：EP09737976.2

申请日：2009-04-07

申请人： Arçelik Anonim Sirketi

发明人： HACIOGLU, Bilgin ,  FIDAN, Umit

IPC分类号： F04B39/00 ,  F04B49/18 ,  F04B53/14

CPC分类号： F04B39/0005 ,  F04B49/18 ,  F04B53/14

摘要： The present invention relates to a hermetic compressor (1 ), used in household appliances, preferably in cooling devices. The compressor (1 ) comprises a cylinder (2) wherein the refrigerant is received, a cylinder head (3) disposed on the cylinder (2), a valve table (4) whereon the cylinder head (3) is emplaced, a discharge hole (5) on the valve table (4) wherefrom the refrigerant received into the cylinder (2) is discharged, a piston (6) disposed inside the cylinder (2) that activates the refrigerant by reciprocating inside the cylinder (2) and a protrusion (7) arranged on the piston (6) that is seated in the discharge hole (5) when the piston (6) reaches the top dead center.

公开(公告)号：EP1418335A2

公开(公告)日：2004-05-12

申请号：EP03021861.4

申请日：2003-09-26

申请人： General Motors Corporation

发明人： Gottemoller, Paul ,  Poola, Ramesh B. ,  Tupek, Richard Wayne ,  Goetzke, Michael Barry

IPC分类号： F02M59/16 ,  F02M59/26 ,  F02M45/06

CPC分类号： F04B49/18 ,  F02M45/063 ,  F02M59/16 ,  F02M59/26

摘要： A high pressure fuel pump having a variable fuel injection rate, including a pump body, a pump cylinder formed in the pump body and a piston reciprocable within the pump cylinder, which defines a pressurization chamber (120). The pump piston (106) has a reduced diameter portion which provides a primary piston (112). A piston annulus is slidably mounted thereon and provides a secondary piston (116). An annular actuation chamber (122) adjoins the secondary piston (116) opposite the pressurization chamber (120). An actuation passage (124) is provided between a return fuel drain and the ctuation chamber (122), which is selectively open or closed passively by pump piston (106) movement and/or dynamically by operation of an actuation solenoid valve (128). If the actuation chamber passage (124) is open, then during the pressurization stroke the secondary piston (116) will remain stationary relative to the pump body, but if it is closed then the secondary piston (116) must stroke in unison with the primary piston (112).

摘要翻译： 一种具有可变燃料喷射速率的高压燃料泵，其包括泵体，形成在泵体内的泵筒体和能够在泵缸内往复运动的活塞，其限定了加压室（120）。 泵活塞（106）具有减小的直径部分，其提供主活塞（112）。 活塞环可滑动地安装在其上并提供第二活塞（116）。 环形致动室（122）邻接与加压室（120）相对的次级活塞（116）。 致动通道（124）设置在回流燃料排出口和致动腔室（122）之间，泵通过泵活塞（106）的运动和/或通过致动电磁阀（128）的动作来动态选择性地打开或关闭。 如果致动室通道（124）打开，则在加压行程期间，次级活塞（116）将相对于泵体保持静止，但是如果其被关闭，则第二活塞（116）必须与主要活塞 活塞（112）。

公开(公告)号：EP0958453B1

公开(公告)日：2003-10-01

申请号：EP98945071.3

申请日：1998-07-30

申请人： ROBERT BOSCH GMBH

发明人： ALAZE, Norbert

IPC分类号： F04B49/18 ,  F04B53/12

CPC分类号： B60T8/4031 ,  F04B49/18 ,  F04B53/126

摘要： The invention relates to a piston pump (10), especially for use in a slip-regulated hydraulic vehicle braking system. The aim of the invention is to increase a volume displaced by the piston pump (10) at low displacement pressure. To this end, a body (24, 26; 92, 94, 96), preferably a ring body, is mounted on the piston (18) in such a way that it can be axially displaced. Said ring body enlarges the cross-sectional area of the piston and is impinged upon axially by an elastic element (34). Under low pressure, the piston pump (10) displaces a medium using the entire cross-sectional area of the piston (18) and the body (24, 26). Under high pressure, the body (24, 26; 92, 94, 96) is retained against the force of the elastic element (34) instead of moving with the piston (18) so that the piston (18) displaces the medium using its own cross-sectional area only. The inventive piston pump (10) has the advantage of being better able to build up pressure when the displacement pressure is low at the beginning of a displacement.

公开(公告)号：EP2902628B1

公开(公告)日：2018-03-07

申请号：EP12885646.5

申请日：2012-09-25

申请人： Sun, Wei

发明人： Sun, Wei

IPC分类号： F04B49/18 ,  F03G7/08 ,  F04B3/00 ,  F04B5/02 ,  F04B9/02 ,  F04B23/06 ,  F04B49/22 ,  F04B49/24 ,  F04B7/00 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

CPC分类号： F04B49/18 ,  F03G7/08 ,  F04B3/00 ,  F04B5/02 ,  F04B7/0076 ,  F04B9/02 ,  F04B23/06 ,  F04B49/22 ,  F04B49/24 ,  F04B49/246 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

摘要： A reciprocating low-speed heavy-load hydraulic pump with a variable action area comprises a plurality of hydraulic cylinder units (3) and moving members (1, 2). Two ends of the hydraulic cylinder units (3) are separately connected with the moving members (1, 2) via mechanical structures. The moving members (1, 2) move relative to each other. The hydraulic cylinder unit (3) consists of a hydraulic cylinder (4), a reversing valve (5) and a one-way valve (6). The hydraulic cylinder (4), the reversing valve (5) and the one-way valve (6) are connected with each other via hydraulic pipelines. Based on different magnitudes of driving force, the hydraulic pump can proactively configure and form different combinations of hydraulic cylinder units, and further adjust the size of an equivalent action area. Therefore, even if the magnitude of the driving force changes, it can be ensured that the hydraulic pump consisting of hydraulic cylinder units outputs oil liquid with a relatively stable pressure for use by a subsequently connected system. The reciprocating low-speed heavy-load hydraulic pump with a variable action area is advantageous in high conversion efficiency, a simple system structure and good working stability.

公开(公告)号：EP1418335B1

公开(公告)日：2017-07-12

申请号：EP03021861.4

申请日：2003-09-26

申请人： Electro-Motive Diesel, Inc.

发明人： Gottemoller, Paul ,  Poola, Ramesh B. ,  Tupek, Richard Wayne ,  Goetzke, Michael Barry

IPC分类号： F02M59/16 ,  F02M59/26 ,  F02M45/06

CPC分类号： F04B49/18 ,  F02M45/063 ,  F02M59/16 ,  F02M59/26

公开(公告)号：EP2902628A1

公开(公告)日：2015-08-05

申请号：EP12885646.5

申请日：2012-09-25

申请人： Sun, Wei

发明人： Sun, Wei

IPC分类号： F04B49/18

CPC分类号： F04B49/18 ,  F03G7/08 ,  F04B3/00 ,  F04B5/02 ,  F04B7/0076 ,  F04B9/02 ,  F04B23/06 ,  F04B49/22 ,  F04B49/24 ,  F04B49/246 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16

摘要： A reciprocating low-speed heavy-load hydraulic pump with a variable action area comprises a plurality of hydraulic cylinder units (3) and moving members (1, 2). Two ends of the hydraulic cylinder units (3) are separately connected with the moving members (1, 2) via mechanical structures. The moving members (1, 2) move relative to each other. The hydraulic cylinder unit (3) consists of a hydraulic cylinder (4), a reversing valve (5) and a one-way valve (6). The hydraulic cylinder (4), the reversing valve (5) and the one-way valve (6) are connected with each other via hydraulic pipelines. Based on different magnitudes of driving force, the hydraulic pump can proactively configure and form different combinations of hydraulic cylinder units, and further adjust the size of an equivalent action area. Therefore, even if the magnitude of the driving force changes, it can be ensured that the hydraulic pump consisting of hydraulic cylinder units outputs oil liquid with a relatively stable pressure for use by a subsequently connected system. The reciprocating low-speed heavy-load hydraulic pump with a variable action area is advantageous in high conversion efficiency, a simple system structure and good working stability.

摘要翻译： 具有可变动作区域的往复式低速重载液压泵包括多个液压缸单元（3）和移动构件（1,2）。 液压缸单元（3）的两端通过机械结构与移动构件（1,2）单独连接。 移动构件（1,2）相对于彼此移动。 液压缸单元（3）由液压缸（4），换向阀（5）和单向阀（6）组成。 液压缸（4），换向阀（5）和单向阀（6）通过液压管道相互连接。 基于不同的驱动力，液压泵可以主动地组态和形成液压缸单元的不同组合，并进一步调整等效作用区域的尺寸。 因此，即使驱动力的大小变化，也可以确保由液压缸单元构成的液压泵输出具有相对稳定压力的油液，以供随后连接的系统使用。 具有可变动作面积的往复式低速重载液压泵有利于高转换效率，简单的系统结构和良好的工作稳定性。