Control system for a multi-piston pump with solenoid valves for the
production of constant outlet pressure flow
    41.
    发明授权
    Control system for a multi-piston pump with solenoid valves for the production of constant outlet pressure flow 失效
    具有电磁阀的多活塞泵的控制系统,用于产生恒定的出口压力流量

    公开(公告)号:US5456581A

    公开(公告)日:1995-10-10

    申请号:US290669

    申请日:1994-08-12

    Abstract: A multi-piston pump is provided which uses microprocessor controlled checkall valves to control flow rate of a fluid at the pump's outlet port. The pump includes nine cylindrical shaped chambers and associated reciprocating pistons which are driven by a cam attached to a shaft. The pump's shaft is coupled to the shaft of a motor which, in turn, drives the pump's shaft and cam resulting in a fluid, such as seawater, filling each of the nine chambers and then having the fluid forced from the chamber by the movement of its associated piston from bottom dead center to top dead center. A pressure transducer which monitors the pressure at the pump's outlet port and a shaft encoder which monitors the angular position of the pump's shaft respectively provide analog signals indicative of the pump's outlet port's pressure and the shaft's angular position. A microprocessor receives these analog signals in a digital form, processes the signals and provides digital pulse signals to either extend or retract the rod of nine solenoids depending upon the pressure at the pump's outlet port. Each of the nine solenoid rods when extended engage a check ball valve within one of the pumps nine inlet passageways allowing the passageway to remain open when the associated reciprocating piston is in a pumping stroke. This allows seawater to be discharged through the inlet passageway maintaining fluid flow at the outlet port at a pressure level which is commensurate with the intended use of the pump.

    Abstract translation: 提供了一种多活塞泵,其使用微处理器控制的止回球阀来控制泵出口处的流体的流速。 该泵包括九个圆柱形的腔室和相关联的往复运动的活塞,它们由连接到轴的凸轮驱动。 泵的轴联接到电动机的轴上,其又驱动泵的轴和凸轮,导致诸如海水的流体填充九个腔室中的每一个,然后通过运动 其相关活塞从下死点至上止点。 监测泵出口处的压力的压力传感器和监测泵轴的角位置的轴编码器分别提供指示泵的出口压力和轴的角位置的模拟信号。 微处理器以数字形式接收这些模拟信号,处理信号并提供数字脉冲信号,以根据泵出口处的压力来延伸或缩回九个电磁阀的杆。 当延伸时,九个螺线管杆中的每一个接合在一个泵内的止回球阀九个入口通道,当相关联的往复活塞处于泵送冲程时允许通道保持打开。 这允许海水通过入口通道排出,保持在出口处的流体流动,其压力水平与泵的预期用途相当。

    Variable capacity wobble plate compressor with high stability of
capacity control
    42.
    发明授权
    Variable capacity wobble plate compressor with high stability of capacity control 失效
    可变容量摇摆板压缩机具有高稳定性的容量控制

    公开(公告)号:US4553905A

    公开(公告)日:1985-11-19

    申请号:US608514

    申请日:1984-05-09

    Abstract: A wobble plate compressor which is adapted to vary the angularity of the wobble plate during rotation in response to the difference between the resultant reaction force exerted by the pistons on their compression and suction strokes and the pressure in the crankcase. The wobble plate is supported by a first fulcrum movable along the drive shaft around which it is disposed, at a diametrically central location, and by a second fulcrum at a location radially spaced from the drive shaft. The second fulcrum is formed by an end of an arm member disposed for rotation together with the drive shaft. The above end of the arm member is in camming engagement with a side surface of the wobble plate so that with an increase in the angularity of the wobble plate the second fulcrum moves toward the axis of the drive shaft through a substantial stroke, whereby the angularity of the wobble plate can vary at a reduced rate relative to a change in the pressure in the crankcase, thereby enhancing the stability of capacity control.

    Abstract translation: 一种摆盘式压缩机,其适于在旋转期间响应于由活塞在其压缩和吸入冲程上产生的反作用力与曲轴箱中的压力之间的差异来改变摆盘的角度。 摆动板由沿着驱动轴的第一支点支撑,第一支点在径向中心位置处设置,并且在与驱动轴径向间隔开的位置处由第二支点支撑。 第二支点由设置成与驱动轴一起旋转的臂构件的端部形成。 臂构件的上端与摆盘的侧面凸轮啮合,从而随着摆盘的角度的增加,第二支点大致行程向驱动轴的轴线移动,由此, 摆动板的相对于曲轴箱中的压力变化的速率可以变化,从而提高容量控制的稳定性。

    작업기의 유압구동장치 및 유압구동방법
    48.
    发明公开
    작업기의 유압구동장치 및 유압구동방법 有权
    작업기의유압구동장치및유압구동방법

    公开(公告)号:KR1020030026346A

    公开(公告)日:2003-03-31

    申请号:KR1020037002428

    申请日:2002-06-20

    Abstract: 엔진(1)의 연료분사제어장치[전자 거버너(12) 및 제어기(13)]는 거버너영역을 등시특성으로 제어 가능하다. 작업기 제어기(18)는 토출압력신호(P)를 입력하여 유압펌프의 토출압력이 소정압력(P1)을 초과하면 유압펌프의 배기량이 미리 설정된 펌프흡수 토오크곡선(20)에 의하여 정해지는 값을 초과하지 않도록 레귤레이터(16)를 제어하고, 유압펌프(2)의 토출압력이 소정압력(P1) 이하에 있을 때, 유압펌프의 토출압력이 소정압력(P1)으로부터 낮아짐에 따라 유압펌프의 배기량이 증가하도록 레귤레이터(16)를 제어한다. 이에 의하여 거버너영역을 등시특성으로 제어되고 있더라도 엔진부하가 가벼워짐에 따라 유압펌프의 토출유량을 증가시킬 수 있다.

    Abstract translation: 燃料喷射控制装置&电子调速器& 12; 和控制器13; 对于发动机和发动机1& rpar; 能够将调速器区域控制为等时特性和周期; 一台工作机器控制器& 18;& rpar; 接收输送压力信号& P& 并控制调节器& 16& 使得当液压泵的输送压力超过预定压力P1& amp; amp; comma; 液压泵的排量不超过由预先设定的泵吸收转矩曲线< 20; 并且当液压泵的输出压力为2 amp时, 不超过预定压力P1& amp;&;逗号; 当液压泵的排出压力从预定压力p1和p1降低时,液压泵的排量增大; 这使它成为可能&逗号; 即使调控区域被控制为等时特征&逗号, 随着发动机负荷变轻和缩短,增加液压泵的输送速度;

    Axial piston machine in a swash-plate construction having an adjusting device
    49.
    发明授权
    Axial piston machine in a swash-plate construction having an adjusting device 失效
    具有调节装置的旋转斜盘结构的轴向活塞机

    公开(公告)号:US08006610B2

    公开(公告)日:2011-08-30

    申请号:US12710050

    申请日:2010-02-22

    Abstract: An axial piston machine in a swash-plate construction with an actuating device. The actuating device comprises a actuating piston and a mating piston. The actuating piston and the mating piston are connected to the swash plate each with the first end thereof and can be applied with the second end thereof with a force acting in the direction of the first end. For resetting the swash plate in the direction of a resting position, an elastic element is provided on the actuating piston and on the mating piston, which is supported on a spring bearing arranged on the first side facing the swash plate of the actuating piston or of the mating piston. In the other direction, the elastic element is supported on a second spring bearing arranged on the end facing away from the swash plate of the actuating piston or of the mating piston. When the swash plate is deflected from the resting position, the second spring bearing of the actuating piston or of the mating piston is supported on a counter bearing on the housing side. The second spring bearing of the respective other actuating bearing or mating bearing is supported on a counter bearing on the piston side.

    Abstract translation: 一种带有致动装置的旋转斜盘结构的轴向活塞机。 致动装置包括致动活塞和配合活塞。 致动活塞和配合活塞连接到斜盘,每个斜盘的第一端都可以与其第二端一起施加在第一端的方向上的力。 为了沿静止位置的方向复位斜盘,弹性元件设置在致动活塞上和配合活塞上,配合活塞被支撑在布置在面向致动活塞的斜板的第一面上的弹簧轴承上,或者 配合活塞。 在另一方向上,弹性元件被支撑在布置在远离致动活塞或配合活塞的斜板的一端上的第二弹簧轴承上。 当旋转斜盘从静止位置偏转时,致动活塞或配合活塞的第二弹簧轴承支撑在壳体侧的止推轴承上。 相应的其它致动轴承或配合轴承的第二弹簧轴承支撑在活塞侧的反向轴承上。

    AIR CONDITIONING COMPRESSOR
    50.
    发明申请
    AIR CONDITIONING COMPRESSOR 有权
    空调压缩机

    公开(公告)号:US20100150744A1

    公开(公告)日:2010-06-17

    申请号:US12450490

    申请日:2008-03-07

    Abstract: A stroke-adjustable air conditioning compressor, in particular for motor vehicles, including a drive mechanism for pistons that move back and forth, the pistons being driven by an adjusting plate, such as a pivoting plate, pivoting ring or swash plate at an adjustable pivoting angle. The position of the pivoting angle is influenced inter alia by compressive forces, inertial forces and elastic forces that are active in the drive mechanism.

    Abstract translation: 一种行程可调的空调压缩机,特别是用于机动车辆,包括用于前后移动的活塞的驱动机构,活塞由诸如枢转板,枢转环或旋转斜盘的调节板驱动,可调节的枢转 角度。 枢转角度的位置特别受到在驱动机构中有效的压缩力,惯性力和弹性力的影响。

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