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    • 2. 发明授权
    • MOTEUR HYDRAULIQUE A PISTONS RADIAUX
    • EP1466092B1
    • 2007-02-21
    • EP02799840.0
    • 2002-12-20
    • POCLAIN HYDRAULICS INDUSTRIE
    • ALLART, BernardBIGO, Louis
    • F03C1/04
    • F03C1/045F03C1/0444
    • The invention concerns a hydraulic radial piston motor comprising a cam, a distributor and a cylinder block whereof the cylinders are connected to communication orifices located in a communicating surface of the cylinder block. The directional valve has a distribution surface wherein emerge distribution orifices adapted to communicate with the communication orifices during the relative rotation of the cylinder block and of the distributor. The cam has several lobes each including two ramps (50) having each a convex portion (51) and a concave portion (52). The edge of each distribution orifice has a leading portion (B1) through which the communication of said orifice with the communication orifices is opened, and a separating portion (B2) through which said communication is closed. The leading portion and the separating portion (B1, B2) of the edge of at least some distribution orifices (21A, 23A) have each an edge fitting (53A; 53B) comprising at least a recess (54A; 54B), said edge fittings being different depending on whether they are in angular correspondence with the convex zone (51) or the concave zone (52) of the cam ramp.
    • 本发明涉及一种液压径向柱塞马达,该液压径向柱塞马达包括凸轮,分配器和气缸体,其中气缸连接到位于气缸体的连通表面中的连通孔。 换向阀具有分配表面,其中在气缸体和分配器的相对旋转期间适合于与连通孔连通的出口分配孔。 凸轮具有多个凸角,每个凸角包括两个斜面(50),每个斜面具有凸部(51)和凹部(52)。 每个分配孔的边缘具有一个引导部分(B1)和一个分离部分(B2),所述孔口与连通孔的连通通过所述引导部分(B1)被打开,所述连通通过所述分离部分被封闭。 至少一些分配孔(21A,23A)的边缘的引导部分和分离部分(B1,B2)各具有包括至少一个凹槽(54A; 54B)的边缘配件(53A; 53B),所述边缘配件 根据它们是否与凸轮坡道的凸形区域(51)或凹形区域(52)成角度对应而不同。
    • 5. 发明公开
    • Hydraulic motor having radial cylinders
    • Hydraulikmotor mit Radialzylindern
    • EP2249026A2
    • 2010-11-10
    • EP10005325.5
    • 2006-04-20
    • S.A.I. Societa' Apparecchiature Idrauliche S.P.A.
    • Pecorari, VittorioPecorari, Davide
    • F03C1/04F03C1/22
    • F03C1/0444F03C1/0406F03C1/0415F03C1/223
    • A radial cylinder hydraulic motor comprises: oscillating hydraulic cylinders (1) driven to oscillate by means of an eccentric crankpin (2) formed on the motor shaft (3), the oscillating cylinder liners (4) being provided with trunnions (5) for oscillation about a parallel axis (C) to the axis (A) of rotation of the motor shaft which are coupled oscillably to the motor crankcase (6); reciprocating pistons (7) within said liners which are provided with a runner (8) for sliding over the outer surface (9) of said eccentric crankpin; and a rotary disk distributor (10, 23) coupled to the motor shaft for synchronized rotation therewith, adapted to place the conduits (12, 13) of the hydraulic circuit in fluid communication with the conduits (14) of the respective cylinders during the delivery and discharge strokes via ports of slanted or through-going configuration; the rotating disk of the distributor formed with a connection/supply means (38, 40) to the passageway between one face (27) and the inner wall of the distributor cover (41) incorporating a seal (28), with pressurized fluid in the area outside the seal; said passageway connection/supply means comprises a depression (38) extending parallel to the passageway; and it presents said passageway connection/supply means comprising at least one hole (40) in communication with one of the slanted configuration ports (24) to the depression.
    • 径向气缸液压马达包括:摆动液压缸(1),其通过形成在马达轴(3)上的偏心曲柄销(2)驱动以摆动,所述摆动气缸套(4)设置有用于振荡的耳轴(5) 围绕与所述电动机曲轴箱(6)可摆动地联接的所述电动机轴的旋转轴线(A)的平行轴线(C); 所述衬套内的往复式活塞(7)设置有用于在所述偏心曲柄销的外表面(9)上滑动的转轮(8) 以及联接到所述马达轴以与其同步旋转的旋转盘分配器(10,23),其适于将所述液压回路的管道(12,13)在输送期间与相应气缸的导管(14)流体连通 并通过倾斜或持续配置的端口排出冲程; 分配器的旋转盘形成有连接/供应装置(38,40),其连接到一个面(27)和分配器罩(41)的内壁之间的通道,其中包括密封件(28),加压流体 密封区域外; 所述通道连接/供应装置包括平行于所述通道延伸的凹陷(38); 并且其呈现所述通道连接/供给装置,其包括与倾斜配置端口(24)中的一个连通到凹部的至少一个孔(40)。
    • 7. 发明公开
    • MOTEUR HYDRAULIQUE A PISTONS RADIAUX
    • 径向柱塞式液压发动机
    • EP1466092A1
    • 2004-10-13
    • EP02799840.0
    • 2002-12-20
    • POCLAIN HYDRAULICS INDUSTRIE
    • ALLART, BernardBIGO, Louis
    • F03C1/04
    • F03C1/045F03C1/0444
    • The invention concerns a hydraulic radial piston motor comprising a cam, a distributor and a cylinder block whereof the cylinders are connected to communication orifices located in a communicating surface of the cylinder block. The directional valve has a distribution surface wherein emerge distribution orifices adapted to communicate with the communication orifices during the relative rotation of the cylinder block and of the distributor. The cam has several lobes each including two ramps (50) having each a convex portion (51) and a concave portion (52). The edge of each distribution orifice has a leading portion (B1) through which the communication of said orifice with the communication orifices is opened, and a separating portion (B2) through which said communication is closed. The leading portion and the separating portion (B1, B2) of the edge of at least some distribution orifices (21A, 23A) have each an edge fitting (53A; 53B) comprising at least a recess (54A; 54B), said edge fittings being different depending on whether they are in angular correspondence with the convex zone (51) or the concave zone (52) of the cam ramp.
    • 8. 发明公开
    • HYDROSTATISCH MECHANISCHER ANTRIEB
    • HYDROSTATIC机械传动
    • EP1068091A1
    • 2001-01-17
    • EP99915702.7
    • 1999-03-25
    • ZF FRIEDRICHSHAFEN Aktiengesellschaft
    • MANN, EgonGEBHARD, Wolfgang
    • B60K7/00B60T13/22F16D59/02F16D55/02
    • B60K7/0015B60K2007/0038B60K2007/0092F03C1/0444
    • The invention relates to a hydrostatic mechanical drive, comprising a hydrostatic radial piston motor (4) whose pistons are supported by rollers on an outerlying cam ring (8), said cam ring being rigidly connected to the drive housing (1), and guided in a rotatable piston support (9). Said piston support is rotationally fixed to an output shaft (11) and is guided between an axial bearing (6) and an axially mobile distributor piece (15) of an oil distributor (13), the distributor piece (15) pressing on the piston support (9) with an axial force. A brake (20) which acts on the output shaft (11) closes by means of a closing spring and opens when the hydraulic pressure exceeds a set value. According to the invention, the piston support (9) is displaceable within an axial limit and the closing spring (12) is located between the axial bearing (6) and the piston support (9), whilst the brake (20) is located on the other side of the piston support (9) between the latter and a part (14) which is rigidly connected to the drive housing (1). The brake is activated through the piston support (9). The distributor piece (15) generates an axial force in dependence on the hydraulic pressure. This axial force is adapted to the closing spring (12) in such a way that the brake (20) opens when the hydraulic pressure exceeds the set value.