利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.01 秒)

    MULTI PISTON MACHINE WITH CONSTANT RELATIONSHIP BETWEEN FLUID VOLUME AND ROTATION ANGLE IN EACH ROTATIONAL POSITION
    4.
    发明公开
    MULTI PISTON MACHINE WITH CONSTANT RELATIONSHIP BETWEEN FLUID VOLUME AND ROTATION ANGLE IN EACH ROTATIONAL POSITION 审中-公开

    公开(公告)号：EP4345284A1

    公开(公告)日：2024-04-03

    申请号：EP22198761.3

    申请日：2022-09-29

    申请人： Robert Bosch GmbH

    发明人： Hare, David

    IPC分类号： F03C1/247 ,  F03C1/40 ,  F03C1/30 ,  F04B1/1071 ,  F04B1/063 ,  F04B1/0413

    摘要： The invention concerns with a rotor having multiple pistons (1.1 - 1.12) contacting a cam surface (21) having first and second sections (81; 82), which are arranged alternately with respect to a rotation of the rotor.
    According to the invention set of reference positions (91) of the rotor is defined for each of the named switching positions of the valve assembly respectively, wherein at each reference position (91) a piston (1.1 - 1.12) connected to the first working port enters a second section (82), due to a rotation of the rotor, wherein an angular extent of at least one first section (81) with respect to the axis of rotation (13) is greater than zero, such that in at least one switching position of the valve assembly the pistons (1.1 - 1.11) contributing to the displacement volume of the multi piston machine (10') pass the associated reference positions (91) at essentially constant angular intervals during a complete revolution of the rotor.

    RADIAL PISTON MACHINE WITH BRAKE
    6.
    发明公开
    RADIAL PISTON MACHINE WITH BRAKE 审中-公开

    公开(公告)号：EP4006372A1

    公开(公告)日：2022-06-01

    申请号：EP20210554.0

    申请日：2020-11-30

    申请人： Robert Bosch GmbH

    发明人： O Hara, Frank

    IPC分类号： F16D55/36 ,  F16D59/02 ,  F04B1/1071 ,  F03C1/40 ,  F03C1/22

    摘要： A radial piston machine comprises: a housing (2), a rotor (4) within the housing, wherein the rotor is rotatable about an axis (6), a shaft (8) coupled to the rotor for torque transmission, a distributor (10) which surrounds the shaft and cannot rotate with the rotor and that contacts the rotor in an axial direction for communicating fluid to and from the rotor, a plurality of brake discs comprising first brake discs (50) and second brake discs (52) arranged side-by-side along the axis, wherein the first brake discs are coupled to the housing for torque transmission, and the second brake discs are coupled to the shaft for torque transmission, and an actuator (60) configured to releasably exert a brake force in the axial direction on the brake discs, wherein the distributor is located axially between the rotor and the actuator, and the brake discs are located axially between the distributor and the actuator; when the brake force is exerted the brake force is supported by the distributor in the axial direction.

    OIL PUMP FOR GAS TURBINE ENGINE AND ASSOCIATED METHOD OF PUMPING OIL
    8.
    发明公开
    OIL PUMP FOR GAS TURBINE ENGINE AND ASSOCIATED METHOD OF PUMPING OIL 审中-公开

    公开(公告)号：EP4450809A1

    公开(公告)日：2024-10-23

    申请号：EP24171418.7

    申请日：2024-04-19

    申请人： PRATT & WHITNEY CANADA CORP.

    发明人： MENHEERE, Dave

    IPC分类号： F04B1/107 ,  F04B1/1071 ,  F04B1/113 ,  F04B1/0404 ,  F04B1/0452 ,  F04B1/047 ,  F04B7/04 ,  F04B53/10 ,  F01D25/20 ,  F02C7/32

    摘要： An oil pump comprising: a support (62) having a guide (80) extending around an axis (70), a radial position of the guide (80) relative the axis (70) varying around the axis (70), and a first oil passage (64) formed in the support (62); a rotary assembly (66) mounted to the support (62) via support bearings (72), and rotatable around the axis (70), the rotary assembly (66) having a second oil passage (68) and a cylinder (78), the cylinder (78) extending radially relative the axis (70), an inlet port (84) fluidly connecting the first oil passage (64) to the cylinder (78), and an outlet port (190) fluidly connecting the cylinder (78) to the second oil passage (68); and a piston (74) slidingly mounted in the cylinder (78), a radially-outer end of the piston (74) further slidingly engaged with the guide (80), wherein the inlet port (84; 184) is uncovered by the piston (74) and open, and wherein when the piston (74) is engaged with the maximum radial position of the guide (80), the inlet port (84) is uncovered by the piston (74) and open, and wherein when the piston (74) is engaged with the minimum radial position of the guide (80), the inlet port (84) is covered by the piston (74) and closed.

    RADIAL PISTON HYDRAULIC MOTOR COMPRISING HOLLOW ROTATING SHAFT INSIDE THE MOTOR
    10.
    发明公开
    RADIAL PISTON HYDRAULIC MOTOR COMPRISING HOLLOW ROTATING SHAFT INSIDE THE MOTOR 审中-公开

    公开(公告)号：EP4134542A1

    公开(公告)日：2023-02-15

    申请号：EP22186418.4

    申请日：2022-07-22

    申请人： Black Bruin Oy

    发明人： Albert, Laurent Eugène ,  Ylä-Mononen, Tero

    IPC分类号： F03C1/047 ,  F04B1/10 ,  F04B1/1071

    摘要： A radial piston hydraulic motor (20) comprising a hollow rotating shaft (21) inside the motor, which rotating shaft (21) is arranged to rotate around its axial central axis A for providing torque from the radial piston hydraulic motor, wherein the rotating shaft (21) comprises a piston frame (22) with pistons (23), which are arranged to move radially, the piston frame (22) comprises a distribution surface (24), which is a flat surface in parallel plane with the radial movement of the pistons (23), and a first inner surface (25) extending in axial direction around the axial central axis A, wherein
    the rotating shaft (21) comprises a half shaft (26) having a second inner surface (27) extending in axial direction around the axial central axis A,
    wherein piston frame (22) and the half shaft (26) are arranged adjacent to each other so that the first inner surface (25) and the second inner surface (27) form a surface, in axial direction, forming a cavity (28) inside the rotating shaft (21) for receiving a drive shaft.