公开(公告)号：US3964506A

公开(公告)日：1976-06-22

申请号：US356292

申请日：1973-05-02

申请人： Richard G. Grundman

发明人： Richard G. Grundman

IPC分类号： F02C7/36 ,  F16D48/02 ,  F16D48/04 ,  H01M4/36 ,  F16D25/00

CPC分类号： F16D25/14 ,  F02C7/36 ,  F16D48/04 ,  F16D2048/0215 ,  F16D2048/0221 ,  Y10T137/2409

摘要： A system for controlling pressure of a fluid, specifically the pressure of servo oil delivered to a clutch which determines the torque transmitted by the clutch. The system includes a pump, a pressure regulating valve to provide servo oil at constant pressure from the pump, and a pilot valve controlled by a solenoid responsive to electric current to vary the pressure in a pilot fluid line supplied from the constant pressure line. The oil is delivered from the fixed pressure line to the clutch by a throttling flow control servo valve which can open for rapid filling of the clutch cylinder. This valve is biased to close by the delivered pressure and biased to open by the pilot pressure. It may also be biased to close by a spring, and in this case be restrained from completely closing, so that the valve assumes its minimum area when the delivered pressure is slightly less than the pilot pressure. The clutch supply line is connected to the pump inlet through a by-pass servo valve which opens when the delivered pressure exceeds the pilot pressure, thus equalizing the delivered pressure with the pilot pressure. This valve also provides for rapid emptying of the clutch cylinder.

摘要翻译： 用于控制流体压力的系统，特别是输送到离合器的伺服油的压力，其确定由离合器传递的扭矩。 该系统包括泵，压力调节阀，用于提供来自泵的恒定压力的伺服油，以及由电流响应于电流控制的先导阀，以改变从恒压线提供的先导流体管线中的压力。 油通过节流流量控制伺服阀从固定压力管线输送到离合器，该流量控制伺服阀可以打开以快速填充离合器油缸。 该阀被传递的压力偏压以关闭，并被先导压力偏压打开。 它也可以被弹簧偏压以关闭，并且在这种情况下，可以限制其完全关闭，使得当所输送的压力略小于先导压力时，阀门占据其最小面积。 离合器供应管线通过旁路伺服阀连接到泵入口，旁通伺服阀当输送压力超过先导压力时打开，从而使先导压力均衡输送压力。 该阀还提供快速排空离合器油缸。

公开(公告)号：US6092737A

公开(公告)日：2000-07-25

申请号：US241720

申请日：1999-02-02

申请人： Russell Harmon Bosch ,  Richard G. Grundman ,  Michael James Seino

发明人： Russell Harmon Bosch ,  Richard G. Grundman ,  Michael James Seino

IPC分类号： F02M47/02 ,  F02M59/46 ,  F02M41/16

CPC分类号： F02M47/027 ,  F02M63/0017 ,  F02M2200/28 ,  F02M2547/008

摘要： An electrically controlled hydraulic actuated fuel injector wherein the amount of return fuel flow is substantially reduced without adversely affecting injection valve operation. An improved control valve armature valve disk of faster acting construction is also included. In one embodiment, dual pressurizing passages of differing diameters provide lower total fuel flow to a control chamber than the outflow through a depressurizing passage controlled by a control valve. Upon full opening of the injection valve, all return fuel flow is supplied to the control chamber through the smaller pressurizing passage, thereby reducing the requirement for pressure fuel flow. Upon closing of the control valve, cutting off discharge through the depressurizing passage, both of the dual pressurizing passages help fill the control chamber to quickly close the injection valve. The improved control valve armature is a small magnetically responsive disk fixed to a metal guide shim having a periphery clamped in the injector housing. Integral fingers of the shim are fixed to the disk, guiding its opening and closing motion free from rubbing on the housing. The fingers lie near the periphery of the shim and disk, allowing room for fuel flow between the disk and an associated solenoid to which the disk is attracted when the control valve is open. Hydraulic resistance to closing of the control valve is thus reduced.

摘要翻译： 一种电控液压致动燃料喷射器，其中返回燃料流量大大降低，而不会不利地影响喷射阀操作。 还包括一个改进的控制阀电枢阀盘，速度更快的结构。 在一个实施例中，具有不同直径的双加压通道提供比通过由控制阀控制的减压通道的流出更低的控制室的总燃料流量。 当喷射阀完全打开时，所有的返回燃料流通过较小的加压通道供给到控制室，从而减少了压力燃料流量的需求。 在关闭控制阀时，通过减压通道切断排放，两个加压通道都有助于填充控制室以快速关闭喷射阀。 改进的控制阀电枢是固定到金属引导垫片的小的磁响应盘，其具有夹在注射器壳体中的周边。 垫片的整体手指固定在盘上，引导其开启和关闭运动，避免摩擦在外壳上。 手指位于垫片和盘片的周边附近，当控制阀打开时，允许在盘和相关螺线管之间燃料流动的空间被盘吸引到该螺线管上。 从而降低了控制阀关闭的液压阻力。

公开(公告)号：US4301777A

公开(公告)日：1981-11-24

申请号：US098079

申请日：1979-11-28

申请人： Richard G. Grundman ,  Richard S. Knape

发明人： Richard G. Grundman ,  Richard S. Knape

IPC分类号： F02M41/06 ,  F02M59/36 ,  F02D7/00

CPC分类号： F02M59/362 ,  F02M59/363 ,  F02B2275/14 ,  Y02T10/123

摘要： A fuel injection pump assembly in which fuel delivered from individual cam lobe driven pump plungers is controlled by an engine driven drive shaft rotated control valve, the position of which, relative to the spill ports from the plungers, is controlled by means of a hydraulic governor. A separate governor cam lobe is used to also actuate the plungers whereby fluid supplied to the hydraulic governor is at a flow rate proportional to pump speed and therefore, engine speed.

摘要翻译： 燃料喷射泵组件，其中从单独的凸轮叶片驱动的泵柱塞输送的燃料由发动机驱动的驱动轴旋转的控制阀控制，其相对于来自柱塞的溢出口的位置通过液压调速器 。 单独的调速器凸轮凸角也用于致动柱塞，由此供应到液压调速器的流体处于与泵速成比例的流速，因此是发动机转速。