专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

JPWO2006085547A1 油圧ピストンポンプ有权
公开(公告)号：JPWO2006085547A1
公开(公告)日：2008-06-26
申请号：JP2007502621
申请日：2006-02-08
申请人：株式会社小松製作所
发明人：茂篠原 , 茂篠原 , 新井　満 , 満新井
IPC分类号： F04B1/22
CPC分类号： F04B1/2021 , F04B1/2042
摘要：油圧ピストンポンプにおいて、システム圧(Po)とシリンダボア内のチャンバ圧(Pi)とを平衡状態としたうえで、シリンダポート(4b)を吐出ポート(9)に連通させることが可能となる。バルブプレート(7)におけるシリンダブロック(3)の摺動面に開口した貫通孔(16)をバランスバルブ(20)の一端面(21a)側と連通させ、バランスバルブの他端面(21b)には吐出ポート(9)側のシステム圧(Po)を供給する。バランスバルブ内には、シリンダボア(4)内のチャンバ圧(Pi)とシステム圧(Po)との差圧により摺動するバランスピストン(21)が内蔵されている。シリンダポート(4b)が導油溝(15)と連通する前に、バランスピストン(21)の作動により、チャンバ圧(Pi)をシステム圧(Po)に平衡させることができる。

52. 发明公开

EP2587058A4 BENT AXIS TYPE HYDRAULIC ROTATING MACHINE 审中-公开
公开(公告)号：EP2587058A4
公开(公告)日：2018-01-03
申请号：EP11798014
申请日：2011-06-14
申请人： HITACHI CONSTRUCTION MACH CO
发明人： NUMAGUCHI KAZUHIRO , NIIDOME TAKASHI , TSUBO TAKAHIRO , OKUNO NAOYUKI
IPC分类号： F04B1/24 , F03C1/24 , F04B53/00 , F04B53/14 , F04B53/16
CPC分类号： F04B1/24 , F04B1/2021 , F04B27/0813 , F04B27/0826 , F04B53/162 , F05C2203/083 , F05C2253/12 , F05C2253/24
摘要： A surface treatment layer (15) is formed to cover a surface side of a cylinder block (6) including a center hole (7) and a plurality of cylinder holes (8) wholly. The surface treatment layer (15) is constituted by a nitriding layer (17) formed by executing nitride-based heat treatment to a base material (16) of the cylinder block (6) formed using an iron-based material such as cast iron or cast steel and a chemical conversion film (18) of manganese phosphate. The chemical conversion film (18) forms a chemical conversion film of manganese phosphate on a surface side of the nitriding layer (17). The chemical conversion film (18) is excellent in initial fitting properties to a sliding material such as a tapered piston (10). Therefore, wear in a contact section between each of cylinder holes (8) of the cylinder block (6) and the tapered piston (10) can be suppressed.

53. 发明公开

EP2835532A4 HYDRAULIC PUMP 有权
标题翻译：液压泵
公开(公告)号：EP2835532A4
公开(公告)日：2016-01-27
申请号：EP13767896
申请日：2013-03-26
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAKINO ATSUSHI , MIURA TAKASHI , KAWASAKI KENTA
IPC分类号： F04B1/20
CPC分类号： F04B1/2042 , F04B1/2021 , F04B1/22
摘要： The purpose of the present invention is to reduce the pressure loss of a hydraulic pump. Ports (11, 12) are formed in a port plate (10). The port plate (10) and a piston unit rotate relative to each other about the rotation axis (S). Valve plate holes respectively connected to cylinders are formed in the valve plate of the piston unit. The valve plate holes are arranged on a circle centered on the rotation axis (S). Each of the ports (11, 12) is formed in a circular are shape centered on the rotation axis (S). The port plate (10) is provided with bridges (13) for dividing the port (11) in the circumferential direction to form port holes (11a) and with bridges (14) for dividing the port (12) in the circumferential direction to form port holes (12a). The sum of the number of the port holes (11a) and the number of the port holes (12a) is greater than the number of the valve plate holes.

54. 发明公开

EP2833008A1 SLIDING MEMBER 有权
标题翻译：滑动成员
公开(公告)号：EP2833008A1
公开(公告)日：2015-02-04
申请号：EP13767498.2
申请日：2013-03-04
申请人： Senju Metal Industry Co., Ltd
发明人： SATO Naoki , KURATA Ryoichi
IPC分类号： F16C33/12 , F04B53/18 , F16C33/14 , F16C33/20 , F16J1/02
CPC分类号： F16C33/12 , F01B3/0073 , F04B1/2021 , F04B1/2028 , F16C17/04 , F16C33/10 , F16C33/14 , F16C33/20 , F16C2202/04 , F16C2204/10 , F16C2204/12 , F16C2223/08 , F16C2240/40 , F16C2240/48 , F16C2240/54 , F16C2360/00
摘要： To provide a sliding member which has hardness that is suitable for the circumstance, to which heavy load is applied, and which is excellent in abrasion resistance property.
The sliding member contains a sliding layer for slidably supporting a body to be slid, shot blasting being performed on a surface of the sliding layer, and a sliding surface formed on a surface of the sliding layer, the sliding surface having an uneven configuration with arithmetic mean roughness (Ra) of 1.0 µm through 2.5µm, 10-point average roughness (Rz) of 5.0 µm through 10.0µm, and surface hardness (Hv) of 220 through 250.
摘要翻译：本发明提供一种滑动部件，该滑动部件具有适合于施加重载荷的环境的硬度，并且耐磨损性优异的滑动部件。滑动构件包括用于可滑动地支撑要滑动的本体的滑动层，在滑动层的表面上执行喷丸处理以及在滑动层的表面上形成的滑动表面，滑动表面具有不平坦构造，平均粗糙度（Ra）为1.0μm至2.5μm，10点平均粗糙度（Rz）为5.0μm至10.0μm，表面硬度（Hv）为220至250。

55. 发明公开

EP2531721A2 AXIALKOLBENMASCHINE UND STEUERSPIEGEL 审中-公开
标题翻译：轴向柱塞式控制和MIRROR
公开(公告)号：EP2531721A2
公开(公告)日：2012-12-12
申请号：EP11701017.3
申请日：2011-01-20
申请人： Robert Bosch GmbH
发明人： KOPECKI, Josef
IPC分类号： F03C1/06 , F04B1/20 , F01B3/00 , F04B1/32
CPC分类号： F04B1/324 , F03C1/0647 , F03C1/0655 , F04B1/2021 , F04B1/2042
摘要： The invention relates to an axial piston engine having a relief area controllable on the basis of the mode of operation.

56. 发明授权

EP1590569B1 AXIALKOLBENMASCHINE UND STEUERPLATTE F R EINE AXIALKOLBENMAS CHINE 有权
标题翻译：轴向活塞和控制面板由于F R甲AXIALKOLBENMAS中国
公开(公告)号：EP1590569B1
公开(公告)日：2012-01-18
申请号：EP03788997.9
申请日：2003-11-03
申请人： Brueninghaus Hydromatik GmbH
发明人： BECK, Josef
IPC分类号： F04B1/20
CPC分类号： F04B1/2021 , F04B1/2042 , Y10T74/18344
摘要： The invention relates to a control plate (20) for an axial piston engine (1). The inventive control plate (20) comprises a through hole (38) and a radial internal edge of said control plate (20) embodied in the form of a centring surface (29) which centres the control plate (20) to a centring body (7) arranged on the side of a bearing surface. Said centring surface (29) consists of several partial surfaces (29.1, 29.2, 29.3) formed on segments (43.1, 43.2, 43.3) of the internal edge (47) of the control plate (20) radially extending towards the internal space of said through hole (38). The segments (43.1, 43.2, 43.3) are divided by cuts (36.1, 36.2, 36.3).

57. 发明授权

EP1882098B8 FLUID POWERED MOTOR OR PUMP 有权
标题翻译： FLUID POWERED（R）泵或马达
公开(公告)号：EP1882098B8
公开(公告)日：2011-01-19
申请号：EP06727028.0
申请日：2006-05-09
申请人： Hydrodrives Technologies Inc.
发明人： Brisland, Michael John
IPC分类号： F04B1/20
CPC分类号： F04B1/2021 , F04B1/2078 , Y10T74/18304
摘要： A low pressure fluid powered motor or pump comprises a non-rotatable cover (k); an undulating lobe cam track (e) attached to the cover (k) and defining multiple crests and troughs; a rotatable cylinder block (c); at least three reciprocable pistons (d) each housed within a bore of the cylinder block (c) and each providing at one end a crown (d1), and at the other end a spherical seating cup (d2); a ball (f), adapted to engage with the cam track (e); a non-rotatable manifold block (n) incorporating a plurality of ports (s), each being radially disposed at equal intervals in an end face of the manifold block adjacent the pistons (d), with the ports (s) linked to galleries connected to a higher pressure delivery circuit, and a lower pressure return circuit, with the angular arrangement of the ports (s) being such that the higher pressure is supplied to the crown (d1) of each piston (d) only whilst the piston (d) is moving from a crest to a trough of the cam track (e), with a switch to the lower fluid pressure circuit as continued rotation of the cylinder block (c) moves a piston (d) from a trough to a crest; an output/input shaft (a) connected to the cylinder block (c); and a rotary shaft-mounted, spring biased commutation, multi-ported face plate (i) interposed between the cylinder block and the manifold block.

58. 发明公开

EP2199609A2 Axialkolbenmaschine mit Pulsationsminderung 审中-公开
标题翻译：脉搏信号
公开(公告)号：EP2199609A2
公开(公告)日：2010-06-23
申请号：EP09014052.6
申请日：2009-11-10
申请人： Robert Bosch GmbH
发明人： Rudik, Ruslan, Dr.
IPC分类号： F04B1/20
CPC分类号： F04B1/2042 , F03C1/0647 , F03C1/0655 , F04B1/2021 , F04B11/0008 , F04B11/0016 , F04B53/001 , F04B2205/16
摘要： Die erfindungsgemäße Axialkolbenmaschine weist eine Steuerplatte (1) und eine Zylindertrommel auf. Die Steuerplatte (1) weist eine erste und zweite Steueröffnung (2) und (3) auf zwischen denen sich jeweils ein Umsteuerbereich (4) und (5) befindet. Die Zylindertrommel ist bezüglich der Steuerplatte (1) drehbar und weist mindestens einen Zylinderraum auf, der unter Drehung der Zylindertrommel über eine Zylinderöffnung (7) abwechselnd mit der ersten und zweiten Steueröffnung (2) und (3) verbunden ist. Zusätzlich weist die Axialkolbenmaschine ein Speicherelement (10) auf, das mit einem Umsteuerbereich (5) verbunden ist. Das Speicherelement (10) ist als Zylinder mit einem bewegbaren Kolben (12) ausgebildet, wobei auf der von der Zylinderöffnung (7) abgewandten Seite des Kolbens nur die Federkraft oder nur die Federkraft plus eine Druckkraft wirkt. Die Druckkraft entsteht dabei nur durch den Druck der Hochdruckseite 3 auf eine reduzierte Querschnittsfläche des Kolbens 12.
摘要翻译：机器具有设置有控制开口（2,3）的控制板（1）和连接在控制开口之间的反转区域（4,5）。气缸滚筒以可旋转的方式相对于控制板布置。存储元件（10）与反转区域连接。存储元件具有由弹簧加载的活塞（12）改变的存储容积（15）。活塞后侧仅通过弹簧力或弹簧力加载，并且液压力由在压缩横截面中的高压引导控制开口的主动压力产生。

59. 发明公开

EP1875044A1 EFFICIENT PUMP/MOTOR WITH REDUCED ENERGY LOSS 审中-公开
标题翻译：有效的泵/电机，减少能源损失
公开(公告)号：EP1875044A1
公开(公告)日：2008-01-09
申请号：EP05737521.4
申请日：2005-04-20
申请人： Government of the United States of America,
发明人： GRAY, Charles, L., Jr.
IPC分类号： F01B3/10 , F04B1/32 , F04B1/20 , F01B3/00
CPC分类号： F04B1/328 , F04B1/2021 , F04B1/2064 , F04B1/2071
摘要： A bent axis pump/motor includes a back plate positioned within a casing, and a check valve positioned in the back-plate, the check valve configured to control passage of fluid from within the casing to an interior of the back plate. A yoke, coupled to the back plate, includes trunnions, positioned within respective apertures in the casing, upon which the yoke rotates. Bearings, occupying less than the complete circumference of the respective trunnion, are positioned between each of the trunnions and respective inner walls of the apertures. Trunnion apertures, for passage of fluid, are positioned in a portion of the circumference not occupied by the respective bearing. A valve positioned within the casing selectively couples high- and low-pressure fluid to the trunnions. Fluid supply channels, formed integrally with the casing, transmit fluid from the valve to the trunnions via fluid apertures provided within the apertures in the casing.
摘要翻译：弯曲轴泵/马达包括位于壳体内的背板和位于背板中的止回阀，止回阀构造成控制流体从壳体内到达背板内部的通路。连接到背板的轭架包括定位在外壳中的相应孔内的耳轴，轭架旋转在所述孔中。占据小于相应耳轴的整个圆周的轴承位于每个耳轴和孔的相应内壁之间。用于流体通过的耳轴孔定位在圆周的未被相应轴承占据的部分中。定位在壳体内的阀选择性地将高压流体和低压流体耦合到耳轴。与壳体一体形成的流体供给通道经由设置在壳体中的孔内的流体孔将流体从阀传递到耳轴。

60. 发明授权

EP0679227B1 HYDRAULIC PISTON MACHINE 无效
标题翻译：液压活塞机
公开(公告)号：EP0679227B1
公开(公告)日：1997-04-16
申请号：EP94904992.8
申请日：1994-01-06
申请人： Danfoss A/S
发明人： JEPSEN, Hardy, Peter
IPC分类号： F04B1/20
CPC分类号： F04B1/2021 , F04B1/2042 , F05C2225/04 , F05C2253/12
摘要： A hydraulic piston machine is disclosed, with a cylinder body (1) and a control counter-plate (4) which engage one another via the intermediary of a control surface, the cylinder body having at least one cylinder which emerges by way of an opening (2) into the control surface, and the control counter-plate (4) has a high-pressure channel (6) and a low-pressure channel (5) which are connected to a high-pressure connection and a low-pressure connection (7) respectively and, upon movement of cylinder body (1) and control counter-plate (4) relative to one another, are passed over by the opening (2), the low-pressure channel (5) having a groove (9) at its end passed over first by the opening (2). It is desirable to be able to operate a machine of that kind also with a hydraulic fluid that has a relatively low viscosity. For that purpose, the groove (9), together with the opening (2), produces a directed jet (12) at least immediately after the start of their overlap.
摘要翻译：公开了一种液压活塞机，其具有通过控制表面的中介彼此接合的缸体（1）和控制配对板（4），缸体具有至少一个缸体，该缸体通过开口（2）进入所述控制面，并且所述控制配对板（4）具有高压通道（6）和低压通道（5），所述高压通道（6）和所述低压通道（5）连接到高压连接部和低压连接部（7），并且在缸体（1）和控制配对板（4）相对于彼此运动时通过开口（2），低压通道（5）具有凹槽（9））最终在开幕式（2）中首先通过。希望能够用具有相对较低粘度的液压流体来操作这种机器。为此目的，凹槽（9）与开口（2）一起至少在重叠开始之后立即产生定向射流（12）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式