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    Pintle for radial piston machines
    1.
    发明授权
    Pintle for radial piston machines 失效
    用于径向活塞机的针筒

    公开(公告)号：US3906998A

    公开(公告)日：1975-09-23

    申请号：US40194273

    申请日：1973-09-28

    Applicant: BOSCH GMBH ROBERT

    Inventor： ROBELLER WALTER ,  STEIMANN ROLAND ,  NONNENMACHER GERHARD

    IPC: F03C1/36 ,  F04B1/04 ,  F01B13/06

    CPC classification number: F03C1/0438 ,  F04B1/0456 ,  Y10T137/86662

    Abstract: A pintle for radial piston machines has two elongated control chambers separated from each other by lands and flanked by two mirror symmetrical grooves. The distance between the grooves varies periodically and the regions where the grooves are nearest to as well as most distant from each other are spaced apart from the centers of the lands, as considered in the circumferential direction of the pintle. Each groove may have a sinusoidal outline or it may consist of several arcuate sections each forming part of a circle. Alternatively, each groove may consist of straight sections which make an obtuse angle with each other.

    Abstract translation: 用于径向活塞机的枢轴具有两个细长的控制室，这两个细长的控制室通过焊盘彼此分离，并且两侧具有两个反光镜对称的槽。 凹槽之间的距离周期性地变化，并且凹槽最靠近并且彼此最远的区域与凸台的中心相隔开，如在枢轴的圆周方向所考虑的那样。 每个凹槽可以具有正弦曲线，或者它可以由几个弓形部分组成，每个弧形部分形成圆的一部分。 或者，每个凹槽可以由彼此形成钝角的直线部分组成。

    4.
    发明专利
    未知

    公开(公告)号：DE2334592A1

    公开(公告)日：1975-02-06

    申请号：DE2334592

    申请日：1973-07-07

    Applicant: BOSCH GMBH ROBERT

    Inventor： STEIMANN ROLAND ,  ROBELLER WALTER ,  NONNENMACHER GERHARD DIPL-ING

    IPC: F03C1/36 ,  F04B1/04 ,  F04B1/10

    Abstract: A pintle for radial piston machines has two elongated control chambers separated from each other by lands and flanked by two mirror symmetrical grooves. The distance between the grooves varies periodically and the regions where the grooves are nearest to as well as most distant from each other are spaced apart from the centers of the lands, as considered in the circumferential direction of the pintle. Each groove may have a sinusoidal outline or it may consist of several arcuate sections each forming part of a circle. Alternatively, each groove may consist of straight sections which make an obtuse angle with each other.

    5.
    发明专利
    未知

    公开(公告)号：DE1528952A1

    公开(公告)日：1970-07-02

    申请号：DEB0077532

    申请日：1964-07-04

    Applicant: BOSCH GMBH ROBERT

    Inventor： HEINZ MUELLER DIPL-ING KARL ,  STEIMANN ROLAND ,  WEIGERT WILHELM

    IPC: F04C2/08 ,  F04C2/14 ,  F04C2/18 ,  F04C15/00

    Abstract: 1,115,194. Gear pumps and motors. ROBERT BOSCH G.m.b.H. July 2, 1965 [July 4, 1964], No.28027/65. Heading F1F. In a pressure-loaded gear pump or motor, bearing members or bodies 17, 18, Fig.1, are pressed against the sides of a pair of externallymeshing gears 13, 14 by pressure communicated to a recess or zone 24 at the back of each member through an axially-orientated passage 25 on the high-pressure side of the meshing gear-teeth, the recess being sealed by an O-ring 23. Each bearing member also includes a pair of blind bores (37, 38), Figs. 2 and 3 (not shown), which are in register with gear-tooth spaces upstream from the passage 25 and effect noise-reduction by serving as chambers wherein pressure fluctuations are dissipated. In a modification, Figs. 4 and 5, pairs of axially-orientated bores 39, 41 and 40, 42 in each bearing member are connected by further bores 43, 44 to the passage 25, the recess 24 thereby rendering the same service as the bores (37, 38). In a further modification, Fig. 6 to 8 (not shown), to effect noise reduction a pair of inclined bores (47, 48) in each bearing member intersect the passage 25 and are connected to one another by a groove (49) situated in the face of the member adjacent the gears to minimize cavitation in the tooth-spaces approaching the high-pressure side. Each bearing member includes a pair of slots 28, 29 to render radially pressure-loaded portions 30, 31 resilient.

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