Reciprocating piston machine with cooling device

    公开(公告)号:US11441552B2

    公开(公告)日:2022-09-13

    申请号:US16632586

    申请日:2018-06-07

    申请人: VOITH PATENT GMBH

    发明人: Marius Burkauskas

    摘要: A reciprocating piston machine for compressing a fluid, more particularly ambient air, for a compressed air system of a motor vehicle, includes a cylinder housing and a cylinder head constructed layer by layer and including a valve carrier element with an outlet valve, a chamber plate and a head plate with a pressure medium outlet. A cooling medium channel for cooling at least a partial region of the cylinder head and an outlet channel for connecting the outlet valve to the pressure medium outlet are provided and extend through components of the cylinder head, at least in portions. In order to improve the cooling, at least a partial portion of the cooling medium channel and a partial portion of the outlet channel are allocated to the cylinder housing.

    Press section
    33.
    发明授权

    公开(公告)号:US11371187B2

    公开(公告)日:2022-06-28

    申请号:US17134613

    申请日:2020-12-28

    申请人: Voith Patent GmbH

    IPC分类号: D21F3/04 D21F7/00 D21F7/08

    摘要: A press section which includes first and second press nips and at least one separate continuously revolving press belt which is routed around each press element of each press nip over a plurality of guide rollers. An upper press belt is led away from the fibrous web after the first press nip. Thereafter the fibrous web is transferred from a lower press belt of the first press nip to an upper press belt of the second press nip. The upper press belt of the second press nip wraps around a vacuum assisted guide roller. Thereafter the lower press belt of the second press nip is brought into contact with the fibrous web via a guide roller, after which the fibrous web travels to the second press nip via a guided path jointly with the two opposite upper and lower press belts of the second press nip.

    Drive device with speed limitation
    34.
    发明授权

    公开(公告)号:US11365799B2

    公开(公告)日:2022-06-21

    申请号:US16968655

    申请日:2019-02-05

    申请人: VOITH PATENT GMBH

    IPC分类号: F16H57/04 F16H57/10

    摘要: A drive device has a superimposed transmission, an input shaft connected a main drive machine, one or more auxiliary drives, a hydrodynamic retarder for braking the auxiliary drive, and an output shaft to be connected to a working machine. The superimposed transmission has a planetary transmission, with the input shaft connected to a ring gear and the output shaft connected to a sun gear. The retarder is incorporated into a lubricating oil system of the drive device in parallel. A feed line branches from the lubricating oil system and leads to the retarder. A return line leads from the retarder and opens into the lubricating oil system. A valve enables the feed line to be released in the event of a rapid disconnection or energy supply failure of one of the drives, and thus the retarder can be filled with oil.

    TRACTION COUPLING
    35.
    发明申请

    公开(公告)号:US20220153319A1

    公开(公告)日:2022-05-19

    申请号:US17535471

    申请日:2021-11-24

    申请人: Voith Patent GmbH

    IPC分类号: B61C17/08 B61G3/00 B61G5/08

    摘要: A traction coupling including a coupling rod, a bearing block, and a coupling head supported by the coupling rod. The coupling rod extends in an axial direction from an attachment end to the coupling head, in a region of the attachment end, the coupling head is mounted in a pivotable manner on the bearing block in order to be attached to a rail vehicle. The traction coupling also including at least one lubricating device having at least one lubricant source and at least one lubricant line connected to the lubricant source for lubrication of joints and/or movement points in the traction coupling. The joints and/or movement points of various components of the following group of components of the traction coupling are lubricated with the lubricating device the coupling rod, the coupling head, and the bearing block.

    METHOD FOR CONTROLLING A DEVICE FOR TREATING HIGH-CONSISTENCY PULP

    公开(公告)号:US20220098790A1

    公开(公告)日:2022-03-31

    申请号:US17422829

    申请日:2020-01-09

    申请人: VOITH PATENT GMBH

    发明人: Markus Nussbaumer

    IPC分类号: D21D1/00 D21D1/30

    摘要: A device for processing high-consistency fibrous material has a housing. First and second treatment tool in the housing are fastened to a base plate, have a rotationally symmetrical form, are arranged coaxially to each other, rotate relative to one another about a common axis and delimit a treatment gap through which the fibrous material radially flows. The gap width of the gap is varied by axially shifting at least one base plate of a treatment tool. In order to determine the minimum distance between the base plates, the oscillations are detected on the device and the distance between the base plates rotating relative to one another is reduced until the frequency and/or the amplitude and/or the change in frequency and/or the change in amplitude of the oscillations exceeds a limit value. The distance when the limit value is exceeded is determined as the minimum distance.

    Machine for dewatering and drying a fibrous web

    公开(公告)号:US11286617B2

    公开(公告)日:2022-03-29

    申请号:US16207902

    申请日:2018-12-03

    申请人: Voith Patent GmbH

    摘要: A machine for dewatering and drying a paper, cardboard or other fibrous web, to which machine a fibrous stock suspension is fed which is formed at least partially from waste paper. The machine includes at least two press nips which are formed in each case by two press rolls, wherein a fibrous web runs through first press nip with a water absorbing dewatering belt on both sides. The fibrous web then runs through a second press nip with at least one other dewatering belt and a smooth impermeable transfer belt on both sides. A transfer belt transfers the fibrous web after second press nip to a belt in a downstream machine unit, e.g. dryer group. The dryer group allows the fibrous web to be guided in a serpentine manner alternatively over heated dryer cylinders and vacuum equipped guide rolls.

    Fabric
    38.
    发明授权
    Fabric 有权

    公开(公告)号:US11280048B2

    公开(公告)日:2022-03-22

    申请号:US16649429

    申请日:2018-09-25

    申请人: VOITH PATENT GMBH

    摘要: A fabric clothing, in particular a press felt, for use in a machine for producing a fibrous web, contains a woven fabric strip having interwoven longitudinal threads and cross threads, as well as having a first and a second longitudinal end. The two longitudinal ends of the woven fabric strip are connected to one another in a connection zone. Provision is made that the two longitudinal ends are welded to one another by a transmission welding, in particular by a laser transmission welding.

    REFINER PLATE SEGMENT
    40.
    发明申请

    公开(公告)号:US20210381164A1

    公开(公告)日:2021-12-09

    申请号:US17406428

    申请日:2021-08-19

    申请人: Voith Patent GmbH

    发明人: Martin Schmid

    IPC分类号: D21D1/30

    摘要: A plate segment for refining an aqueously suspended fibrous material in a refining gap delimited by two treatment surfaces rotating relative to each other and formed by a plurality of the plate segment, includes: a basic body including: a plurality of elongate treatment elements which face the refining gap and run radially at least with one directional component; a plurality of grooves running between the plurality of elongate treatment elements, the plurality of grooves including a groove base; and a plurality of channels running at least with one directional component radially and at least approximately parallel to the refining gap, being at different distances from the refining gap and arranged in the basic body, and at least partially overlapping one of one another and with the groove base in a direction of rotation.