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公开(公告)号：US5950757A
公开(公告)日：1999-09-14
申请号：US974155
申请日：1997-11-19
CPC分类号： B62D5/065 , F04B49/10 , F04B2205/06 , F04B2205/13
摘要： A power steering device includes a hydraulic pump for discharging working fluid, an actuator for producing a steering assisting force by means of working fluid, a hydraulic passage for connecting the hydraulic pump and the actuator, a check valve arranged to the hydraulic passage to allow flow of working fluid from the hydraulic pump to the actuator and preventing flow thereof in the opposite direction, an accumulator connected to the hydraulic passage downstream of the check valve, a pressure switch for detecting a pressure within the hydraulic passage downstream of the check valve, a control unit for controlling the hydraulic pump in response to the pressure switch, and a display for showing an anomaly of the power steering device. When determining the anomaly of the power steering device, the control unit stops the hydraulic pump and/or makes the display show the anomaly.
摘要翻译： 动力转向装置包括用于排放工作流体的液压泵，用于通过工作流体产生转向辅助力的致动器，用于连接液压泵和致动器的液压通道，设置在液压通道上以允许流动的止回阀 工作流体从液压泵到致动器并防止其沿相反方向的流动;连接到止回阀下游的液压通道的蓄能器;用于检测止回阀下游的液压通道内的压力的压力开关; 用于响应于压力开关控制液压泵的控制单元和用于示出动力转向装置的异常的显示器。 当确定动力转向装置的异常时，控制单元停止液压泵和/或使显示器显示异常。
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公开(公告)号：US5975232A
公开(公告)日：1999-11-02
申请号：US779906
申请日：1997-01-07
CPC分类号： B62D5/065
摘要： A power assisted steering apparatus for a vehicle has a driving source and an actuator for the vehicle's steering mechanism, to power assist the steering operation. The driving source, such as an engine, continuously drives a pump. A working passage is arranged so that working oil discharged from the pump is introduced into the actuator. A check valve is disposed in the working passage, between the actuator and the pump so that the working oil flows only one way to the actuator. An accumulator is connected to the working passage, between the check valve and the actuator to maintain a predetermined pressure in the working passage. A regulator is connected to the working passage, between the pump and the check valve to regulate flow to the actuator. When the pressure within the working passage reaches the predetermined pressure, the working fluid is dumped to a reservoir, bypassing the check valve, the accumulator, and the actuator.
摘要翻译： 用于车辆的助力转向装置具有用于车辆转向机构的驱动源和致动器，用于辅助转向操作。 诸如发动机的驱动源连续驱动泵。 工作通道被布置成使得从泵排出的工作油被引入致动器。 止回阀设置在工作通道中，在致动器和泵之间，使得工作油仅仅一条流动到致动器。 蓄能器连接到工作通道，在止回阀和致动器之间，以保持工作通道中的预定压力。 调节器连接到工作通道，在泵和止回阀之间，以调节流向致动器的流量。 当工作通道内的压力达到预定的压力时，工作流体被转移到储存器，旁通止回阀，蓄能器和致动器。
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公开(公告)号：US6041883A
公开(公告)日：2000-03-28
申请号：US814488
申请日：1997-03-10
摘要： A power steering system includes a fluid pump, a steering gear, a high-pressure passage connecting the fluid pump to the steering gear, and a flow control valve having a first chamber forming a part of the high-pressure passage. A metering orifice is disposed in the high-pressure passage between the first chamber and the steering gear. A feedback passage distributes feedback pressure developed in the high-pressure passage downstream of the metering orifice to a second chamber of the flow control valve. An exhaust port communicates with the first chamber. A movable valve spool is disposed in a valve bore and has one end exposed to the first chamber and opposite end exposed to the second chamber. A valve spring is disposed in the second chamber together with a slide coupled with an external actuator. One end of the valve spring is seated on the opposite end of the valve spool and opposite end thereof is seated on the slide. The actuator is responsive to a control signal to position the slide thereby varying force with which the valve spring urges the valve spool. A control unit develops the control signal in response to turning maneuvers.
摘要翻译： 动力转向系统包括流体泵，舵机，将流体泵连接到舵机的高压通道以及具有形成高压通道的一部分的第一室的流量控制阀。 计量孔设置在第一室和舵机之间的高压通道中。 反馈通道将在计量孔口下游的高压通道中产生的反馈压力分配到流量控制阀的第二室。 排气口与第一室连通。 可动阀芯设置在阀孔中，并且具有暴露于第一腔室的一端和暴露于第二腔室的相对端。 阀弹簧与与外部致动器联接的滑块一起设置在第二室中。 阀弹簧的一端位于阀芯的相对端上，其相对端位于滑块上。 致动器响应于控制信号来定位滑块，从而改变阀弹簧推动阀芯的力。 控制单元响应于转动操纵而开发控制信号。
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公开(公告)号：US6035958A
公开(公告)日：2000-03-14
申请号：US800176
申请日：1997-02-13
摘要： A steering power assist apparatus is comprised of a power cylinder whose operation is controlled by the a flow rate control valve, a first control valve and a second control valve. The flow rate control valve is connected to a discharge side of a hydraulic pump and controls the amount of the hydraulic oil to be supplied to the first and second control valves according to a load pressure. The first control valve constituted by choke valves is disposed downstream of the flow rate control valve and controls the amount of the hydraulic oil supplied to the second control valve according to a steering torque. The second control valve constituted by choke valves is disposed downstream of the flow rate control valve and controls the amount of the hydraulic oil to the power cylinder according to a steering torque. The choke valves of the second control valve are fully closed after the choke valves of the first control valve are fully closed.
摘要翻译： 转向助力装置包括动力缸，其动作由流量控制阀，第一控制阀和第二控制阀控制。 流量控制阀连接到液压泵的排出侧，并根据负载压力控制供给到第一和第二控制阀的液压油的量。 由阻流阀构成的第一控制阀设置在流量控制阀的下游，并且根据转向转矩来控制供给到第二控制阀的液压油的量。 由阻流阀构成的第二控制阀设置在流量控制阀的下游，并且根据转向扭矩控制到动力缸的液压油的量。 第一个控制阀的节流阀完全关闭后，第二个控制阀的节流阀完全关闭。
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公开(公告)号：US5921342A
公开(公告)日：1999-07-13
申请号：US784307
申请日：1997-01-16
CPC分类号： F04C14/06 , B62D5/065 , F04B49/022
摘要： A power assisted steering apparatus for a vehicle having a driving source, such as an engine, has an actuator, a hydraulic pump, a working oil pressure passage, and a drive switch. The actuator, which is in the vehicle steering mechanism, receives a supply or exhaust of a working oil to assist the steering operation. The pump is selectively driven by an engine via a clutch mechanism. The working oil discharged from the pump is introduced into the actuator via the passage. The check valve is interposed within the passage to enable flow in one direction away from the pump. The drive switch structure is disposed within the passage, downstream from the check valve. With this arrangement, the drive switch structure can be activated by pressure in the passage downstream of the check valve to control the clutch mechanism.
摘要翻译： 用于具有诸如发动机的驱动源的车辆的动力辅助转向装置具有致动器，液压泵，工作油压力通道和驱动开关。 在车辆转向机构中的致动器接收工作油的供给或排出以辅助转向操作。 泵通过离合器机构由发动机选择性地驱动。 从泵排出的工作油通过通道被引入致动器。 止回阀插入在通道内，以使得能够在远离泵的一个方向上流动。 驱动开关结构设置在通道内，止回阀的下游。 通过这种布置，驱动开关结构可以通过在止回阀下游的通道中的压力来启动，从而控制离合器机构。
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公开(公告)号：US5020975A
公开(公告)日：1991-06-04
申请号：US396843
申请日：1989-08-21
申请人： Toshinori Aihara
发明人： Toshinori Aihara
IPC分类号： F04C28/10 , F04B49/08 , F04C18/344 , F04C28/14
CPC分类号： F04C28/14
摘要： In a variable-delivery vane-type rotary compressor, a rotational displacement of an adjust member relative to a front member fixedly closing a front end of a cam ring varies a compression starting point of a rotary vane in a working chamber formed in the cam ring. The rotational displacement of the adjust member is controlled by an adjust member actuating unit in response to a pilot pressure applied to the adjust member actuating unit from a pilot pressure applying unit. The pilot pressure applying unit includes a first passage communicating the adjust member actuating unit with a valve unit, a second passage communicating an induction chamber with the valve unit, and a third passage communicating a discharge chamber with the valve unit. The valve unit, when it is most displaced in a first direction, fully blocks the communication between the adjust member actuating unit and the induction chamber through the first and second passages while allowing the communication between the adjust member actuating unit and the discharge chamber through the first and third passages for applying a pressure within the discharge chamber to the adjust member actuating unit as the pilot pressure. On the other hand, the valve unit, when it is most displaced in a second direction opposite to the first direction, fully opens the communication between the adjust member actuating unit and the induction chamber through the first and second passages for applying a pressure within the induction chamber to the adjust member actuating unit as the pilot pressure.
摘要翻译： 在可变输送叶片式旋转式压缩机中，调节构件相对于固定地闭合凸轮环的前端的前部构件的旋转位移改变形成在凸轮环中的工作室中的旋转叶片的压缩起始点 。 响应于从先导压力施加单元施加到调节构件致动单元的先导压力，调节构件的旋转位移由调节构件致动单元控制。 先导压力施加单元包括使调节构件致动单元与阀单元连通的第一通道，使感应室与阀单元连通的第二通道和将排气室与阀单元连通的第三通道。 阀单元当其沿第一方向最大位移时，通过第一和第二通道完全阻止调节构件致动单元和感应室之间的连通，同时允许调节构件致动单元和排出室之间的连通通过 第一和第三通道，用于在排出室内将压力作为先导压力施加到调节构件致动单元。 另一方面，当阀单元在与第一方向相反的第二方向最大位移时，阀单元通过第一和第二通道完全打开调节构件致动单元和感应室之间的连通，以在 感应室作为先导压力到调节构件致动单元。
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公开(公告)号：US5049052A
公开(公告)日：1991-09-17
申请号：US337350
申请日：1989-04-13
申请人： Toshinori Aihara
发明人： Toshinori Aihara
IPC分类号： F04C18/344 , F01C21/10
CPC分类号： F01C21/106 , F05C2251/046
摘要： A vane-type rotary compressor employs a cam ring made of an aluminium type metal which is different from the metal to form a rotor and rotor vanes and has a linear expansion coefficient selected to be greater than that of the metal of the rotor and vanes so as to compensate temperature difference therebetween.
摘要翻译： 叶片式旋转式压缩机采用与金属不同的铝型金属制的凸轮环，形成转子叶片和转子叶片，其线性膨胀系数选择为大于转子和叶片金属的线性膨胀系数 以补偿它们之间的温差。
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公开(公告)号：US5125804A
公开(公告)日：1992-06-30
申请号：US696174
申请日：1991-05-06
申请人： Seiji Akaike , Toshinori Aihara , Yukio Sudo
发明人： Seiji Akaike , Toshinori Aihara , Yukio Sudo
CPC分类号： F04C28/14
摘要： A variable-delivery vane-type rotary compressor including receiving means for defining a space for rotatably receiving a disc-shaped rotary closure member, which is associated with one of the end openings of a by-pass passage, within the end wall of a compression chamber. The receiving means may also be provided on the peripheral wall of the compression chamber. The bearing means is provided between the rotary closure member and the end wall of the compression chamber.
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公开(公告)号：US5026257A
公开(公告)日：1991-06-25
申请号：US407366
申请日：1989-09-14
申请人： Toshinori Aihara , Masahiko Hara
发明人： Toshinori Aihara , Masahiko Hara
IPC分类号： F04C28/26 , F04B49/02 , F04C18/344 , F04C28/14
CPC分类号： F04C28/14
摘要： In a variable displacement vane-type rotary compressor, a rotational displacement of an adjust member relative to a front member fixedly closing a front end of a cam ring varies a compression starting point of a rotary vane in a working chamber formed in the cam ring. The front member is formed with an induction port and a bypass port, and the adjust member is formed with a bypass recess. The induction port and the bypass recess are in communication with each other in the working chamber irrespective of a position of the vane under all of the rotational displacement of the adjust plate to establish a communication between the induction port and the bypass port in the working chamber irrespective of the position of the vane when the bypass port overlaps with the bypass recess.
摘要翻译： 在可变排量叶片式旋转式压缩机中，调节构件相对于固定地闭合凸轮环的前端的前部构件的旋转位移改变形成在凸轮环中的工作室中的旋转叶片的压缩起始点。 前部构件具有导入口和旁通口，调节构件形成有旁通凹部。 吸入口和旁路凹槽在工作室中彼此连通，而不管调节板的所有旋转位移下的叶片的位置如何，以在工作室中的导入口和旁通口之间建立连通 不管旁路端口与旁路凹口重叠时叶片的位置如何。
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公开(公告)号：US5035584A
公开(公告)日：1991-07-30
申请号：US114652
申请日：1987-10-28
申请人： Seiji Akaike , Toshinori Aihara , Yukio Sudo
发明人： Seiji Akaike , Toshinori Aihara , Yukio Sudo
CPC分类号： F04C28/14
摘要： A variable-delivery vane-type rotary compressor including receiving means for defining a space for rotatably receiving a disc-shaped rotary closure member, which is associated with one of the end openings of a by-pass passage, within the end wall of a compression chamber. The receiving means may also be provided on the peripheral wall of the compression chamber. The bearing means is provided between the rotary closure member and the end wall of the compression chamber.
摘要翻译： 一种可变输送叶片式旋转压缩机，包括接收装置，用于限定用于可旋转地接收圆盘形旋转闭合构件的空间，其与旁通通道中的一个端部开口相关联，在压缩的端壁内 房间。 接收装置也可以设置在压缩室的周壁上。 轴承装置设置在旋转关闭构件和压缩室的端壁之间。
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