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    Heat pump comprising a thermally driven liquid pump and liquid pump for use in a heat pump
    3.
    发明授权
    Heat pump comprising a thermally driven liquid pump and liquid pump for use in a heat pump 失效
    热泵包括用于热泵的热驱动液体泵和液体泵

    公开(公告)号：US4619119A

    公开(公告)日：1986-10-28

    申请号：US695987

    申请日：1985-01-29

    申请人： Kees Dijkstra ,  Jan Huizinga

    发明人： Kees Dijkstra ,  Jan Huizinga

    IPC分类号： F25B15/00 ,  F25B15/02 ,  F25B13/00

    CPC分类号： F25B15/025 ,  Y02B30/62

    摘要： A heat pump, in which there is arranged in a circuit between an absorber (7) and a generator (1) a liquid pump (9) comprising a piston (35) which is displaceable in a cylinder (33) and forms the separation between a gas chamber (37) and a liquid chamber (39) in which simultaneously prevails a pressure of comparatively low level during the suction stroke and a pressure of comparatively high level during the delivery stroke. A guide member (47) secured to the cylinder (33) encloses with the piston (35) an auxiliary chamber (51) of variable volume in which liquid of comparatively low pressure at least during the delivery stroke is constantly present. The gas chamber (37) is connected to alternately a lead of low and high gas pressure (69 and 71, respectively) in the heat pump, while the liquid chamber (39) is connected synchronously therewith alternately to a lead of low and high pressure (11a and 11b, respectively) in the heat pump. The heat pump provides an attractive solution especially for domestic heating for pumping liquid solution between the generator and the absorber because of the low-noise and low-energy liquid pump driven by means of pressure differences in the heat pump itself.

    摘要翻译： 一种热泵，其中在吸收器（7）和发电机（1）之间的电路中布置有包括可在气缸（33）中移位的活塞（35）的液体泵（9），并形成在 气室（37）和液体室（39），其中在吸入冲程期间同时占据较低水平的压力，并且在输送冲程期间具有较高水平的压力。 固定到气缸（33）的引导构件（47）与活塞（35）一起包围可变容积的辅助室（51），其中至少在输送冲程期间不断存在相对低压的液体。 气室（37）在热泵中交替地交替地输送低气压（69和71）的引线，同时液体室（39）与低压高压的同时交替地连接 （11a和11b）。 热泵提供了一个有吸引力的解决方案，特别是用于家用加热泵送发电机和吸收器之间的液体溶液，因为通过热泵本身的压力差驱动的低噪声和低能量液体泵。

    Electroacoustic transducer unit with reduced resonant frequency and mechanical spring with negative spring stiffness, preferably used in such a transducer unit
    4.
    发明授权
    Electroacoustic transducer unit with reduced resonant frequency and mechanical spring with negative spring stiffness, preferably used in such a transducer unit 失效
    具有降低谐振频率的电声换能器单元和具有负弹簧刚度的机械弹簧，优选用于这种换能器单元中

    公开(公告)号：US4607382A

    公开(公告)日：1986-08-19

    申请号：US598637

    申请日：1984-04-10

    申请人： Kees Dijkstra ,  Bernard P. Videc ,  Jan Huizinga

    发明人： Kees Dijkstra ,  Bernard P. Videc ,  Jan Huizinga

    IPC分类号： H04R1/28 ,  H04R1/42 ,  H04R3/00 ,  H04R7/16 ,  H04R7/26 ,  H04R9/06 ,  H04R29/00

    CPC分类号： H04R9/06 ,  H04R1/42 ,  H04R7/26

    摘要： An electroacoustic transducer unit comprises an electroacoustic transducer with a diaphragm (1), a magnet system (2) with an air gap (3), and a voice-coil former (4) with a voice coil (5) arranged in the air gap (3) of the magnet system. The transducer unit comprises means for reducing the transducer resonant frequency including mechanical springs with negative spring stiffness each coupled between a stationary part of the transducer unit and a movable part, for example the voice-coil former or the diaphragm of the transducer (FIG. 1b). The transducer unit further comprises a control device (42) which generates a control signal for correcting the position of the diaphragm. The mechanical spring with negative spring stiffness comprises two blade springs with both ends coupled to each other and which, under the influence of a compressive force F which acts in a direction along an imaginary line through both ends of the mechanical spring, are each bent in one of two opposite directions.

    摘要翻译： 一种电声换能器单元包括具有隔膜（1）的电声换能器，具有空气间隙（3）的磁体系统（2）和具有布置在气隙中的音圈（5）的音圈形成器（4） （3）。 换能器单元包括用于减小换能器谐振频率的装置，其包括具有负弹簧刚度的机械弹簧，每个弹簧刚度均耦合在换能器单元的固定部分和可移动部件之间，例如音圈形成器或换能器的隔膜（图1b ）。 换能器单元还包括产生用于校正隔膜位置的控制信号的控制装置（42）。 具有负弹簧刚度的机械弹簧包括两个叶片弹簧，其两端彼此连接，并且在沿着沿机械弹簧两端的假想线的方向作用的压缩力F的作用下， 两个相反方向之一。