公开(公告)号：US06364631B1

公开(公告)日：2002-04-02

申请号：US09388109

申请日：1999-09-01

申请人： James R. Blass ,  Dennis H. Gibson ,  Mark F. Sommars ,  Eric S. Keyster

发明人： James R. Blass ,  Dennis H. Gibson ,  Mark F. Sommars ,  Eric S. Keyster

IPC分类号： F04B1700

CPC分类号： F02M63/0225 ,  F02M39/02 ,  F02M55/00 ,  F02M57/025 ,  F02M59/105 ,  F02M63/00 ,  F04B1/141 ,  F04B17/05

摘要： A pumping system for supplying high pressure actuation fluid to individual fuel injectors of an engine equipped with a hydraulically-actuated fuel injection system wherein the three major elements of the system, namely, the pump, the rail pressure control valve and the bleed-off sump or reservoir are physically separated and spaced from one another. The pump is annular, having a central opening through which the engine crankshaft passes. The crankshaft and pump wobble plate are rotationally coupled by opposing flats on each. The pump, rail pressure control valve and reservoir are mounted directly to the engine, receiving and discharging fluid through internal engine passageways, thereby eliminating the usual tubing, and fittings. The pump itself is compact and relatively short in the axial direction, leaving space for mounting such things as a cylindrical housing having belt grooves in its outer surface and a viscous damper on the crankshaft between the pump and the terminal crankshaft end.

公开(公告)号：US06561771B2

公开(公告)日：2003-05-13

申请号：US09884748

申请日：2001-06-19

申请人： Eric S. Keyster ,  Dennis Gibson

发明人： Eric S. Keyster ,  Dennis Gibson

IPC分类号： F04B112

CPC分类号： F04B1/146

摘要： An axial piston pump with center inlet fill utilizes a hydrostatic thrust bearing and a hydrodynamic journal bearing to support a rotating wobble type drive plate connected to a drive shaft. The rotation of the drive plate causes a plurality of parallel pistons to reciprocate up and down. The pumping chambers of a portion of the pistons are fluidly connected via a center fill passage to the inlet defined by the pump housing. Simultaneously, the pumping chambers of a different portion of the pistons are fluidly connected to the outlet via a high pressure actuation fluid outlet passage. The center fill passage exploits centrifugal forces to assist, rather than resist, the supply of low pressure fluid to the pistons, especially when rotating at higher speeds.

公开(公告)号：US06517331B1

公开(公告)日：2003-02-11

申请号：US09672324

申请日：2000-09-28

申请人： Dennis H. Gibson ,  Eric S. Keyster

发明人： Dennis H. Gibson ,  Eric S. Keyster

IPC分类号： F04B704

CPC分类号： F04B1/148 ,  F04B1/122

摘要： A displacement pump includes a rotatable drive shaft; a low-pressure hydraulic fluid reservoir; at least one piston containing a piston cavity; and a drive plate connected with the drive shaft. The drive plate includes an inlet passage and a fill slot. The fill slot is fluidly connected with the low pressure hydraulic fluid reservoir via the inlet passage. The drive plate is rotatable about the drive shaft such that as the drive plate rotates, the piston cavity is intermittently fluidly connected with the fill slot.

摘要翻译： 排量泵包括可旋转的驱动轴; 低压液压油箱; 至少一个包含活塞腔的活塞; 以及与驱动轴连接的驱动板。 驱动板包括入口通道和填充槽。 填充槽通过入口通道与低压液压油箱流体连接。 驱动板可以围绕驱动轴转动，使得当驱动板旋转时，活塞腔与填充槽间断地流体连接。

公开(公告)号：US06378497B1

公开(公告)日：2002-04-30

申请号：US09442948

申请日：1999-11-18

申请人： Eric S. Keyster ,  Jack A. Merchant

发明人： Eric S. Keyster ,  Jack A. Merchant

IPC分类号： F02M3704

CPC分类号： F02M59/46 ,  F02M39/02 ,  F02M47/043 ,  F02M55/02 ,  F02M55/025 ,  F02M57/025 ,  F02M59/105 ,  F02M59/466 ,  F02M61/14 ,  F02M2200/21

摘要： A fuel injector adapter consists of a block defining a pressure communication passage therethrough and an actuation fluid passage. The actuation fluid passage includes three separate branches that open through an outer surface of the block at three separate locations.

摘要翻译： 燃料喷射器适配器由限定通过其的压力连通通道和致动流体通道的块组成。 致动流体通道包括三个单独的分支，其在三个单独的位置处穿过该块的外表面。

公开(公告)号：US06568916B2

公开(公告)日：2003-05-27

申请号：US09876496

申请日：2001-06-07

申请人： Bryan E. Nelson ,  Eric S. Keyster

发明人： Bryan E. Nelson ,  Eric S. Keyster

IPC分类号： F04B112

CPC分类号： F04B1/2028 ,  F04B1/30

摘要： A variable delivery fixed displacement pump is provided which has a rotating drive plate with a fixed angle. The drive plate has a fill passage extending between its radial outer surface and its drive surface, which allows fluid to be supplied to a fluid journal bearing. The drive plate also has a series of bearing supply passages which fluidly connect the drive surface of the drive plate with a base surface, allowing fluid to be supplied to a fluid thrust bearing. A method of pumping fluid is also provided which is comprised of the steps of reciprocating a plurality of pistons at least in part by rotating the drive plate, and by fluidly connecting a pumping chamber of the pistons to an annular groove that is part of the drive plate fill passage.

公开(公告)号：US06557455B2

公开(公告)日：2003-05-06

申请号：US09943034

申请日：2001-08-30

申请人： Eric S. Keyster ,  Timur T. Trubnikov

发明人： Eric S. Keyster ,  Timur T. Trubnikov

IPC分类号： F01B300

CPC分类号： F04B1/2035 ,  Y10T29/49236

摘要： The present invention finds applicability in barrel assemblies defining a ring shaped cavity that is to be fluidly sealed from a central bore. Current barrel assemblies, such as those used in hydraulic pumps, are made from castings. This can be undesirable due to long production time and difficulty in producing consistent components. The present invention is directed to overcoming one or more of these problems by disclosing a barrel assembly and a method for making the same wherein the barrel and the plug are manufactured from the same material, or from materials having similar coefficients of thermal expansion. Thus, upon pump operation and optional heat treatment of the assembled barrel assembly, both the barrel and the plug will expand in a similar manner. The present invention finds application in axial piston pumps, especially for high pressure hydraulic systems, and other two piece components having a cavity requiring a seal.

公开(公告)号：US06464473B2

公开(公告)日：2002-10-15

申请号：US09875605

申请日：2001-06-06

申请人： James R. Blass ,  Dennis H. Gibson ,  Mark F. Sommars ,  Eric S. Keyster

发明人： James R. Blass ,  Dennis H. Gibson ,  Mark F. Sommars ,  Eric S. Keyster

IPC分类号： F04B1700

CPC分类号： F02M63/0225 ,  F02M39/02 ,  F02M55/00 ,  F02M57/025 ,  F02M59/105 ,  F02M63/00 ,  F04B1/141 ,  F04B17/05

摘要： A pumping system for supplying high pressure actuation fluid to individual fuel injectors of an engine equipped with a hydraulically-actuated fuel injection system wherein the three major elements of the system, namely, the pump, the rail pressure control valve and the bleed-off sump or reservoir are physically separated and spaced from one another. The pump is annular, having a central opening through which the engine crankshaft passes. The crankshaft and pump wobble plate are rotationally coupled by opposing flats on each. The pump, rail pressure control valve and reservoir are mounted directly to the engine, receiving and discharging fluid through internal engine passageways, thereby eliminating the usual tubing, and fittings. The pump itself is compact and relatively short in the axial direction, leaving space for mounting such things as a cylindrical housing having belt grooves in its outer surface and a viscous damper on the crankshaft between the pump and the terminal crankshaft end.

摘要翻译： 一种用于向配备有液压致动燃料喷射系统的发动机的单个燃料喷射器供应高压致动流体的泵送系统，其中系统的三个主要元件，即泵，轨道压力控制阀和泄放池 或储存器在物理上彼此分离和间隔开。 泵是环形的，具有发动机曲轴通过的中心开口。 曲轴和泵摆动板通过相对的平面旋转耦合。 泵，导轨压力控制阀和储存器直接安装在发动机上，通过内部发动机通道接收和排出流体，从而消除了通常的管道和配件。 泵本身紧凑并且在轴向方向上相对较短，留下用于安装诸如其外表面中具有带槽的圆柱形壳体和在泵与端子曲轴端之间的曲轴上的粘性阻尼器的空间。