公开(公告)号：US6142060A

公开(公告)日：2000-11-07

申请号：US76704

申请日：1998-05-13

Applicant: Katsumi Saito ,  Toshihiro Kameda ,  Satoshi Iitaka

Inventor： Katsumi Saito ,  Toshihiro Kameda ,  Satoshi Iitaka

IPC: F04B1/16 ,  F04B1/14 ,  F04B53/04 ,  F04B53/14 ,  F01B3/02

CPC classification number: F04B53/04 ,  F04B1/141 ,  F04B1/146 ,  F04B53/143 ,  F05C2201/0478 ,  F05C2225/04

Abstract: There is provided a high pressure fuel pump which includes a reliable fuel seal having a long durability and which can be produced at a relatively low cost. When a rotating shaft 4 is rotated to rotate a swash plate 7, such rotation is transmitted to a piston shoe guide plate 8 through a thrust ball bearing 9. Since the plate 8 is supported by a spherical portion 16 of a rod 14 mounted to a body 12, the plate 8 performs a precession to recurrently operate a plurality of fuel pumps 21 to 25 disposed around the rod 14. Each of the fuel pumps 21 to 25 includes a bellows provided between an outer end of the piston and the body 12, and the bellows completely seals a fuel leaked from a sliding clearance between the piston and the cylinder. Since the leaked fuel is introduced into a return passage 19 through a groove formed in an outer wall of the cylinder, a large internal pressure is not applied to the bellows and therefore, the bellows can be made of a low-priced material such as Teflon.

Abstract translation: 提供了一种高压燃料泵，其包括可靠的燃料密封件，其具有长的耐久性并且可以以相对低的成本生产。 当旋转轴4旋转以旋转斜盘7时，这种旋转通过推力球轴承9传递到活塞靴引导板8.由于板8由安装到 主体12，板8进行旋转以循环地操作设置在杆14周围的多个燃料泵21至25.每个燃料泵21至25包括设置在活塞的外端和主体12之间的波纹管， 并且波纹管完全密封从活塞和气缸之间的滑动间隙泄漏的燃料。 由于泄漏的燃料通过形成在气缸的外壁中的凹槽引入回流通道19中，因此不会对波纹管施加大的内部压力，因此波纹管可以由诸如特氟隆的低价材料制成 。

公开(公告)号：US5788465A

公开(公告)日：1998-08-04

申请号：US606149

申请日：1996-02-23

Applicant: Joseph A. Luongo ,  Jeffrey Howard Stokes ,  Robert E. Reynolds ,  Wade P. Leveille ,  Robert J. Dumas

Inventor： Joseph A. Luongo ,  Jeffrey Howard Stokes ,  Robert E. Reynolds ,  Wade P. Leveille ,  Robert J. Dumas

IPC: F04B53/14 ,  F04B53/22 ,  F04B17/00

CPC classification number: F04B53/14 ,  F04B53/147 ,  F04B53/22 ,  F05C2201/0478 ,  F05C2203/0873

Abstract: A pump configured so that tools are not required to remove the pump head and disassemble the plunger. A single large hand operated knob or head nut facilitates tool-less pump head removal. The pump head is guided into position in a manifold and held in place by the hand knob. The manifold is designed to receive all the external fluidic connections made to the pump head. Fluid paths to the pump head have been replaced with miniature face seals which facilitate high pressure sealing between the pump head and manifold. Low pressure tubing seals reside in a seal wash chamber or housing and are not attached to the head, eliminating the need for tooling to disconnect them during pump head removal. A tool-less plunger mechanism includes a nutcap assembly having a plunger socket receiving a plunger assembly including a sapphire plunger fixed to a plunger holder ball accommodated by the socket. The plunger assembly is captured within the socket by a plurality of cams. The cams are spring loaded to rotate and collapse onto the plunger holder ball, pulling the plunger assembly tightly into the socket. A restricting cone is actuated to rotate the cams away from the plunger holder ball for release and removal of the plunger assembly.

Abstract translation: 泵被配置为使得不需要工具来移除泵头并拆卸柱塞。 单个大型手动旋钮或头螺母便于无需泵头拆卸。 泵头被引导到歧管中的位置，并通过手柄保持在适当的位置。 歧管设计用于接收与泵头形成的所有外部流体连接。 泵头的流体路径已被替换为便于在泵头和歧管之间进行高压密封的微型面密封件。 低压油管密封件位于密封清洗室或外壳中，并且不连接到喷头上，因此无需在泵头拆卸过程中切割工具。 一种无需工具的柱塞机构包括一个具有活塞插座的螺母盖组件，所述活塞插座接收柱塞组件，所述活塞组件包括固定到由所述插座容纳的柱塞座球的蓝宝石柱塞。 柱塞组件通过多个凸轮捕获在插座内。 凸轮被弹簧加载以旋转并塌陷到柱塞保持器球上，将柱塞组件紧紧地拉入插座中。 致动限制锥以将凸轮转动离开活塞保持器球以释放和移除柱塞组件。

公开(公告)号：US5392693A

公开(公告)日：1995-02-28

申请号：US204831

申请日：1994-03-02

Applicant: William K. Engel ,  James C. Goade ,  Michael H. Haselkorn ,  Donald H. Sherman

Inventor： William K. Engel ,  James C. Goade ,  Michael H. Haselkorn ,  Donald H. Sherman

IPC: F04B1/12 ,  F16J9/00

CPC classification number: F04B1/124 ,  F04B1/126 ,  F05B2250/34 ,  F05C2201/0478 ,  F05C2253/12 ,  Y10T403/32181 ,  Y10T403/32196 ,  Y10T403/32696 ,  Y10T403/35 ,  Y10T403/74

Abstract: Piston assemblies for use in fluid translating devices normally are made of hardened metal alloy materials which require very smooth surface and are always subject to varying degrees of thermal expansion when being operated at high operating temperatures. In the subject arrangement, a piston assembly is provided and is constructed of most, if not all, ceramic components. The piston assembly includes a ceramic piston having a spherical head portion at one end thereof which rests in a spherical cavity of a ceramic slipper and held therein by a cylindrical ring. The cylindrical ring can be of a one-piece or a two-piece design which is in contact with the spherical head portion and bonded to the ceramic slipper, thus, retaining the spherical head portion. The cylindrical ring could also be made of a metallic material. The metallic ring is bonded to the ceramic slipper and subsequently swaged to hold the spherical head portion within the spherical cavity. The subject ceramic piston assembly provides a very smooth surface which reduces sliding friction and likewise the effects of thermal expansion and inertia are minimized by the use of a ceramic material. Consequently, the subject piston assembly is very efficient when operating at high temperatures and, likewise, is easy to manufacture and assemble.

Abstract translation: 用于流体转换装置的活塞组件通常由需要非常光滑表面的硬化金属合金材料制成，并且在高操作温度下操作时总是经受不同程度的热膨胀。 在主题布置中，提供活塞组件并且由大多数（如果不是全部）陶瓷部件构成。 活塞组件包括陶瓷活塞，其陶瓷活塞的一端具有球形头部，该球形头部位于陶瓷拖鞋的球形腔中，并由圆柱形环保持在其中。 圆柱形环可以是与球形头部接触并结合到陶瓷拖鞋上的一体式或两件式设计，因此保持球形头部。 圆柱形环也可以由金属材料制成。 金属环结合到陶瓷拖鞋上，随后模锻以将球形头部保持在球形腔内。 主体陶瓷活塞组件提供了非常光滑的表面，其减少了滑动摩擦，并且同样通过使用陶瓷材料来最小化热膨胀和惯性的影响。 因此，当在高温下操作时，主体活塞组件非常有效，并且同样易于制造和组装。

公开(公告)号：US5383391A

公开(公告)日：1995-01-24

申请号：US210487

申请日：1994-03-21

Applicant: James C. Goade ,  Claude H. Werner

Inventor： James C. Goade ,  Claude H. Werner

IPC: F01B3/00 ,  F04B1/20 ,  F16H23/02 ,  F16H23/00

CPC classification number: F16C19/502 ,  F01B3/00 ,  F01B3/0073 ,  F04B1/2085 ,  F16C33/306 ,  F16H23/02 ,  F05C2201/0478 ,  Y10T74/18336

Abstract: Arcuate bearings are useful, for example, in pivotally supporting a cradle swashplate of axial piston variable displacement hydraulic devices. The bearings of known hydraulic devices have either been a pair of laterally spaced roller bearings assembly or a pair of laterally spaced sleeve bearings. The subject hydraulic device includes a roller bearing assembly positioned between the swashplate and the housing at the side of the swashplate subjected to high loads and a less expensive sleeve bearing positioned between the swashplate and the housing at the other side of the swashplate subjected to low loads. By using this combination of bearings, the overall cost of the hydraulic device is reduced without impairing the operation of the hydraulic device.

Abstract translation: 弧形轴承是有用的，例如，枢转地支撑轴向活塞可变排量液压装置的摇篮斜盘。 已知液压装置的轴承或者是一对横向间隔开的滚子轴承组件或一对侧向间隔开的套筒轴承。 主体液压装置包括一个滚子轴承组件，该滚子轴承组件位于旋转斜盘和壳体之间的斜盘受到高负荷的一侧，而较便宜的套筒轴承位于旋转斜盘和外壳之间，在斜盘受到低负荷的另一侧 。 通过使用这种轴承的组合，液压装置的总体成本降低，而不损害液压装置的操作。

公开(公告)号：US5099750A

公开(公告)日：1992-03-31

申请号：US614184

申请日：1990-11-13

Applicant: Jozsef Rebel

Inventor： Jozsef Rebel

IPC: F04B1/04 ,  F04B1/12 ,  F16J1/22

CPC classification number: F16J1/22 ,  F04B1/0408 ,  F04B1/124 ,  F05B2230/41 ,  F05C2201/0478 ,  F05C2253/12

Abstract: The piston mechanism comprises a piston (3), a sliding shoe (6) and a coupling member (18) holding together the piston (3) and sliding shoe (6). The coupling member (18) comprises a shaft part (19) and joint heads (20,21) arranged at the end of the shaft part (19). The heads (20,21) have spherical zone-shaped sliding surfaces (9,11,23,24), which cooperate with corresponding sliding surfaces (9,24) in sliding shoe (6) or in the bottom of the piston (3). Due to the fact that the radius of curvature (R1,R2,R3) of the sliding surfaces of the sliding shoe (6) and the piston (3) have the same centre of curvature (10) and therefore the same fulcrum, damage to the sliding surfaces is avoided.

Abstract translation: 活塞机构包括活塞（3），滑动靴（6）和将活塞（3）和滑靴（6）保持在一起的联接构件（18）。 联接构件（18）包括轴部（19）和布置在轴部（19）的端部处的接头（20,21）。 头部（20,21）具有球形区域形滑动表面（9,11,23,24），其与滑靴（6）中的相应滑动表面（9,24）或活塞（3）的底部 ）。 由于滑靴（6）和活塞（3）的滑动表面的曲率半径（R1，R2，R3）具有相同的曲率中心（10），因此具有相同的支点，损坏 避免滑动面。

公开(公告)号：US4386782A

公开(公告)日：1983-06-07

申请号：US284549

申请日：1981-07-20

Applicant: Corrado Reverberi

Inventor： Corrado Reverberi

IPC: F04B53/16 ,  F16J15/00 ,  F16J15/56 ,  F16J15/18 ,  F04B39/00

CPC classification number: F16J15/56 ,  F04B53/164 ,  F16J15/004 ,  F05C2201/0478

Abstract: A guide and seal assembly for a piston of a drowned piston type pump comprising at least a chamber within which the said piston reciprocates to suck into and supply from the said chamber a liquid. The assembly comprises a ring having a first frontal seat for a first annular seal element having a substantially C-shaped cross-section and an annular groove formed in the inner cylindrical surface of the ring and arranged to accommodate a second annular seal element of substantially U-shaped cross-section; a first and a second annular cavities formed in the ring communicate with each other by means of at least a radial hole, and the first annular cavity communicates with at least a discharge hole for the liquid which gathers in the first cavity.

Abstract translation: 一种用于淹没活塞式泵的活塞的导向和密封组件，至少包括一个室，所述活塞在其中往复运动以吸入所述腔室并从所述腔室供应液体。 组件包括具有第一正面座的环，用于第一环形密封元件，其具有基本上C形的横截面，以及形成在环的内圆柱形表面中的环形槽，并且布置成容纳基本为U的第二环形密封元件 形截面; 形成在所述环中的第一和第二环形腔通过至少一个径向孔彼此连通，并且所述第一环形腔至少与用于聚集在所述第一腔中的液体的排放孔连通。

公开(公告)号：US4242061A

公开(公告)日：1980-12-30

申请号：US946770

申请日：1978-09-28

Applicant: E. Dale Hartley

Inventor： E. Dale Hartley

IPC: F04B43/02 ,  F04B23/06 ,  F04B39/00 ,  F16H21/14

CPC classification number: F04B43/026 ,  F05C2201/0478 ,  F05C2253/12 ,  Y10T74/18208 ,  Y10T74/18256

Abstract: A pump having first and second pumping chambers and a double-acting reciprocating piston which partly defines the pumping chambers. The piston is reciprocated by a rotatable drive member which may include an eccentric. The rotatable drive member has a peripheral surface which engages first and second wear members lying on opposite sides of the drive member. Each of the wear members is mounted on the piston for at least limited movement toward and away from the drive member. First and second resilient elements are positioned between the first wear member and the piston and the second wear member and the piston, respectively. The resilient elements resiliently support the wear members to provide a good driving connection between the drive member and the piston.

Abstract translation: 具有第一和第二泵送室的泵和部分地限定泵送室的双作用往复活塞。 活塞由可旋转的驱动构件往复运动，该驱动构件可包括偏心轮。 可旋转驱动构件具有与位于驱动构件的相对侧上的第一和第二磨损构件接合的外周表面。 每个磨损构件安装在活塞上以朝向和远离驱动构件的至少有限的运动。 第一和第二弹性元件分别位于第一耐磨构件和活塞之间，并且分别位于第二耐磨构件和活塞之间。 弹性元件弹性地支撑磨损构件以在驱动构件和活塞之间提供良好的驱动连接。

公开(公告)号：US4190402A

公开(公告)日：1980-02-26

申请号：US575112

申请日：1975-05-06

Applicant: Meredith W. Meece ,  Charles W. Ickes ,  Fred H. Moore

Inventor： Meredith W. Meece ,  Charles W. Ickes ,  Fred H. Moore

IPC: F04B35/04 ,  F04B39/00 ,  F04B39/04 ,  F04B39/06 ,  F04B39/10 ,  F04B39/12 ,  F16J10/04 ,  F04B27/02

CPC classification number: F04B39/122 ,  F04B35/04 ,  F04B39/0005 ,  F04B39/04 ,  F04B39/066 ,  F04B39/1073 ,  F16J10/04 ,  F05C2201/0466 ,  F05C2201/0478 ,  F05C2253/12

Abstract: A compressor motor has a flywheel connected directly to a motor shaft which drives two opposed pistons that are simultaneously compressed so that the bearing loads are balanced. A double inlet blower is connected to said shaft and has one inlet for drawing cooling air through a crankcase for cooling the connecting rod bearings. A second inlet draws air through a vent formed in a shroud member. The blower discharges the air from both inlets into the shroud member which then directs the air to the cylinder sleeves and heads for cooling purposes. The cylinder, piston skirts and piston rings are self-lubricated by containing a fluorocarbon thereby substantially reducing the heat generating friction between said members.

Abstract translation: 压缩机电动机具有直接连接到电动机轴的飞轮，其驱动两个相对的同时压缩的活塞，使得轴承负载平衡。 双入口鼓风机连接到所述轴上，并且具有用于通过曲轴箱抽取冷却空气以冷却连杆轴承的一个入口。 第二入口通过形成在护罩构件中的通风口吸入空气。 鼓风机将空气从两个入口排出到护罩部件中，然后将空气引导到气缸套筒和头部用于冷却目的。 气缸，活塞裙和活塞环通过含有碳氟化合物而自润滑，从而大大减少了所述构件之间的发热摩擦。

公开(公告)号：US4023467A

公开(公告)日：1977-05-17

申请号：US621020

申请日：1975-10-09

Applicant: Helmut Thurner

Inventor： Helmut Thurner

IPC: F04B39/00 ,  F16J1/00 ,  F16J1/09 ,  F04B21/04 ,  F15B13/04 ,  F16J9/08

CPC classification number: F04B39/0005 ,  F16J1/00 ,  F16J1/006 ,  F16J1/09 ,  F05C2201/0478 ,  F05C2225/04

Abstract: To permit dry operation of a piston within the cylinder, the cylinder is made of metal, and the piston is made of polytetrafluorethylene; the piston, preferably, is formed with an annular ring groove extending downwardly from an end face thereof to leave a circumferential lip, the groove having a spring located therein biasing the lip outwardly against the cylinder wall, to provide for sealing contact of the lip against the cylinder wall, which is additionally reinforced by pressure of the gas being compressed by movement of the piston within the cylinder, tending to expand the lip against the piston surface, at the time when the compression is highest, and sealing is the most desired.

Abstract translation: 为了允许缸内活塞的干运行，气缸由金属制成，活塞由聚四氟乙烯制成; 优选地，活塞形成有从其端面向下延伸以留下周向唇缘的环形环槽，该凹槽具有位于其中的弹簧，其将唇缘向外偏压抵靠气缸壁，以提供唇缘与 气缸壁通过气缸内的活塞的运动而被压缩的气体加压，在压缩最高时倾向于使唇部膨胀到活塞表面，并且密封是最需要的。

公开(公告)号：US3811798A

公开(公告)日：1974-05-21

申请号：US27315472

申请日：1972-07-19

Applicant: HYDRAULIC SYST INC

Inventor： BICKFORD J

IPC: F04B1/12 ,  F04B1/14 ,  F04B23/06 ,  F01B31/10

CPC classification number: F04B1/14 ,  F04B1/122 ,  F04B23/06 ,  F05C2201/0478

Abstract: A pump having pistons that actuate a pumping device by suction and compression and having novel means for sealing the fluid being pumped from the lubricating fluid and for ensuring lubrication between the pistons and their cylinders. The reciprocation of the pistons is made to pump the lubricating fluid between them and the cylinder and to return the fluid to an internal lubricant reservoir. A swash plate acts also as a circulating pump for sending the lubricating fluid through an external cooling reservoir.