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    PUMPING UNIT FOR A MACHINE TO DISTRIBUTE CONCRETE
    22.
    发明公开
    PUMPING UNIT FOR A MACHINE TO DISTRIBUTE CONCRETE 有权
    泵体了一台机器水泥分布

    公开(公告)号：EP2601410A2

    公开(公告)日：2013-06-12

    申请号：EP11794226.8

    申请日：2011-08-01

    Applicant: Cifa S.P.A.

    Inventor： PIRRI, Nicola ,  BOTTINO, Gennaro, Paolo

    IPC: F04B15/02

    CPC classification number: F04B1/02 ,  F04B15/02 ,  F04B15/023 ,  F04B2201/02 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0204

    Abstract: Pumping unit (10) for a machine to distribute concrete comprising: a pair of pistons (12, 13) provided with a relative pumping cylinder (22, 23) movable linearly for a determinate travel (S) to feed the concrete to a determinate circuit to distribute the concrete; and a hydraulic command circuit (11) operatively connected to both the pistons (12, 13), to determine an alternate pumping movement of the relative pumping cylinders (22, 23). The pumping unit (10) comprises at least a sensor member (15) operatively associated to at least one of the pistons (12, 13) in order to detect point-by -point one or more data relating to the operating condition of the pumping cylinder (22, 23) during its movement for the whole travel (S). The data comprise at least one of position, speed, stress and direction of movement of the relative piston (12, 13).

    KÄLTEMITTELVERDICHTER MIT LINEARANTRIEB
    24.
    发明公开
    KÄLTEMITTELVERDICHTER MIT LINEARANTRIEB 有权
    直线驱动制冷压缩机

    公开(公告)号：EP2513479A1

    公开(公告)日：2012-10-24

    申请号：EP10807312.3

    申请日：2010-12-14

    Applicant: ACC Austria GmbH

    Inventor： SCHÖGLER, Hans Peter

    IPC: F04B17/04 ,  F04B35/04 ,  F04B49/12

    CPC classification number: F04B17/04 ,  F04B35/045 ,  F04B49/12 ,  F04B2201/02 ,  F04B2201/0206

    Abstract: The invention relates to a coolant compressor with a hermetically sealed compressor housing, in the interior of which lies a piston cylinder unit (21) that compresses a coolant. The cylinder housing (1) of said piston cylinder unit is closed at the front end thereof by means of a cylinder head (4), said piston cylinder unit (21) having at least one piston (3). A linear drive (6) is provided, comprising at least one oscillating body (7) which is surrounded by an excitation winding (8) and which is connected to the piston (3) in order to move same along a longitudinal axis (9) of the piston in an oscillating manner. According to the invention, the piston cylinder unit (21) is equipped with at least one permanent magnet arrangement, each permanent magnet arrangement comprising at least one first permanent magnet (11) that lies on the piston (3) and at least one second permanent magnet (12) that lies on the cylinder housing (1). Both the first permanent magnet (11) and the second permanent magnet (12) face each other and are oriented in the same magnetic pole direction in order to generate a repelling effect between both permanent magnets (11, 12) to limit the path of the piston in the region of the top dead center and/or in the region of the bottom dead center.

    Automatic bidirectional valve and pump provided with said valve
    28.
    发明授权
    Automatic bidirectional valve and pump provided with said valve 有权

    公开(公告)号：US11732700B2

    公开(公告)日：2023-08-22

    申请号：US17083392

    申请日：2020-10-29

    Applicant: ANNOVI REVERBERI S.P.A.

    Inventor： Pierluigi Argentino

    IPC: F04B1/0452 ,  F04B1/0408

    CPC classification number: F04B1/0452 ,  F04B1/0408 ,  F04B2201/02 ,  F04B2201/06

    Abstract: An automatic bidirectional valve includes: a valve body, a central conduit that crosses the valve body and is provided with a first opening in a first end of the valve body and a second opening made in an opposite second end thereof, and a peripheral conduit made in the valve body, provided with a first opening, made in a portion of the valve body between the first and second ends, and a second opening made in the second end. A first shutter is movable between a closing position and an opening position, a first elastic element configured to generate a force adapted to maintain the first shutter in the closing position, a second shutter movable between a closing position, and an opening position, a second elastic element configured to generate a force to maintain the second shutter in the closing position, and a retaining body fixed to the valve body.

    Pumping unit for a machine to distribute concrete
    30.
    发明授权
    Pumping unit for a machine to distribute concrete 有权

    公开(公告)号：US09651033B2

    公开(公告)日：2017-05-16

    申请号：US13813811

    申请日：2011-08-01

    Applicant: Nicola Pirri ,  Gennaro Paolo Bottino

    Inventor： Nicola Pirri ,  Gennaro Paolo Bottino

    IPC: F04B1/02 ,  F04B15/02

    CPC classification number: F04B1/02 ,  F04B15/02 ,  F04B15/023 ,  F04B2201/02 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0204

    Abstract: A pumping unit for a machine to distribute concrete includes a pair of cylinders provided with a relative pumping piston movable linearly for a determinate travel to feed the concrete to a determinate circuit to distribute the concrete; and a hydraulic command circuit operatively connected to both the cylinders, to determine an alternate pumping movement of the relative pumping pistons. The pumping unit includes at least a sensor member operatively associated to at least one of the cylinders in order to detect point-by-point one or more data relating to the operating condition of the pumping piston during its movement for the whole travel. The data includes at least one of position, speed, stress and direction of movement of the relative piston.

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