公开(公告)号：US20030024386A1

公开(公告)日：2003-02-06

申请号：US09921170

申请日：2001-08-02

Inventor： Walter T. Burke

IPC: F16J009/00

CPC classification number: F16J9/26 ,  F16J15/3284 ,  F16J15/56

Abstract: A reciprocating pump or compressor has a piston head assembly in a cylinder having an inside surface. The piston head assembly has a piston hub and a piston seal. The piston hub has a flange. A piston seal formed of a first and a second resilient material, the second resilient material having a hardness less than the hardness of the first resilient material, is mounted on the piston hub. The first resilient material abuts the flange and covers an outer surface of the flange. The second resilient material is bonded to the first resilient material. The piston seal has an annular bulge in the second resilient material with a maximum diameter interior to the annular bulge larger than the diameter of the inside surface of the cylinder, forming a seal with the cylinder when compressed upon insertion of the piston head assembly into the cylinder.

Abstract translation: 往复泵或压缩机具有在具有内表面的气缸中的活塞头组件。 活塞头组件具有活塞毂和活塞密封件。 活塞毂有一个凸缘。 由第一和第二弹性材料形成的活塞密封件，第二弹性材料的硬度小于第一弹性材料的硬度，安装在活塞毂上。 第一弹性材料邻接凸缘并覆盖凸缘的外表面。 第二弹性材料结合到第一弹性材料。 活塞密封件在第二弹性材料中具有环形凸起，其中最大直径内部至环形凸起的内径大于气缸内表面的直径，当将活塞头组件插入其中时在压缩时与气缸形成密封 圆筒。

公开(公告)号：US20020180157A1

公开(公告)日：2002-12-05

申请号：US10158836

申请日：2002-06-03

Inventor： Ehrenfried Horn ,  Rudolf Widmann ,  Steffen Hoppe

IPC: F02F005/00 ,  F16J009/00

CPC classification number: F16J9/26

Abstract: A piston ring for use in a cylinder of an internal combustion engine, which ring is nitride-hardened at least on the sliding surface between piston ring and cylinder wall. The nitride layer is composed of a precipitated layer and a compound layer, wherein the piston ring consists of a low-alloyed iron-base material and an oxide layer is deposited on the compound layer.

Abstract translation: 一种用于内燃机气缸的活塞环，该活塞环至少在活塞环和气缸壁之间的滑动表面上被氮化硬化。 氮化物层由沉淀层和化合物层组成，其中活性环由低合金铁基材料组成，氧化物层沉积在化合物层上。

公开(公告)号：US20020002902A1

公开(公告)日：2002-01-10

申请号：US09756299

申请日：2001-01-09

Inventor： Charles D. Kownacki

IPC: F16J009/00

CPC classification number: F01B17/02 ,  A63H29/16 ,  F02B75/34

Abstract: Within a piston cylinder of a pneumatic engine, the system includes a piston proportioned for complemental travel within a piston cylinder, the piston having a radial compression surface and elements for effecting the axial reciprocation of the piston within the piston housing. The system further includes a piston seal including an element for securement to the compression surface of the piston and an integrally dependent resilient annular skirt normally biased inwardly toward a longitudinal system axis, the skirt, in combination with the securement elements, defining a radius of less than that from the system axis to interior walls of the cylinder during low pressure (return stroke) phases of a work cycle of the pneumatic engine and, during high pressure/compression stroke phases, defining a radius greater than that from the system axis to the inner wall of the cylinder. The inward bias of the skirt is overcome causing axial and radial lifting of the skirt against inner walls of the cylinder to effect a piston seal of a high integrity during high pressure phases of the engine work cycle. No seal exists during low pressure phases, since the skirt is not yet expanded.

Abstract translation: 在气动发动机的活塞气缸内，系统包括在活塞气缸内成比例的活塞，活塞具有径向压缩表面和用于实现活塞在活塞壳体内的轴向往复运动的元件。 该系统还包括活塞密封件，其包括用于固定到活塞的压缩表面的元件和通常朝向纵向系统轴向向内偏置的整体依赖的弹性环形裙部，该裙部与固定元件组合限定半径较小 比在气动发动机的工作循环的低压（返回行程）阶段期间在系统轴线到气缸的内壁的相位高，并且在高压/压缩冲程阶段期间限定大于从系统轴线到 气缸内壁。 裙部的向内偏压被克服，导致裙部轴向和径向提升到气缸的内壁，以在发动机工作循环的高压阶段中实现高完整性的活塞密封。 在低压阶段不存在密封，因为裙部尚未膨胀。

公开(公告)号：US20010040346A1

公开(公告)日：2001-11-15

申请号：US09220517

申请日：1998-12-24

Inventor： KAZUTOSHI TAKASHIMA

IPC: F16J009/00

CPC classification number: F16J9/206 ,  F02B23/101

Abstract: A piston and piston ring assembly has a compression ring and a lubrication control ring. The compression ring substantially seals a combustion chamber from a crankcase chamber. The lubrication control ring is configured with a reverse-taper end surface and a wiping edge. The reverse-taper end surface allows the lubrication control ring to leave a thin lubricant coat on a cylinder wall during a piston downstroke. The wiping edge pulls lubricant upward toward the compression ring during a piston upstroke. The combination of the elements and the elements on their own result in enhanced lubrication of the compression ring and thereby increase the life of the piston ring and reduce the wear on the ring and the cylinder bore.

Abstract translation: 活塞和活塞环组件具有压缩环和润滑控制环。 压缩环基本上将燃烧室与曲轴箱室密封。 润滑控制环配置有倒锥度端面和擦拭边。 反向锥形端面允许润滑控制环在活塞下冲程期间在气缸壁上留下薄的润滑剂涂层。 在活塞上冲时，擦拭边缘将润滑剂向上拉向压缩环。 元件和元件的组合本身可以增强压缩环的润滑，从而增加活塞环的寿命，并减少环和缸孔的磨损。

公开(公告)号：US20040021270A1

公开(公告)日：2004-02-05

申请号：US10398679

申请日：2003-04-09

Inventor： Akiyosi Takizawa ,  Nobuo Katayama

IPC: F16J009/00

CPC classification number: F16J9/062 ,  C22C38/18 ,  C23C8/26 ,  F16J9/26

Abstract: A two piece oil control ring is provided which comprises a ring body (1) formed into a generally M- or I-shaped section with an annular groove (4) on an inside surface (3) of the ring body (1); and a coiled expander (2) attached in the annular groove (4) of the ring body (1) for resiliently urging the ring body (1) toward an inner wall of a cylinder. The ring body (1) is made of stainless steel that contains chromium of 3.0 to 13.0 weight % with the outer and inner circumferential surfaces (11, 12) covered with nitrided layers (14, 15). Circular ratio (null) of an outer edge length (Yo) to an inner edge length (Yi) in the cross section of the ring body (1) is in a range between 1.08 and 1.32 to keep precise peripheral circularity of the ring body so that the nitrided layers survive lapping of the ring body (14, 15).

Abstract translation: 提供了一种两片油控制环，其包括形成为大致M形或I形截面的环形体（1），在环形体（1）的内表面（3）上具有环形槽（4）; 以及安装在所述环形体（1）的环形槽（4）中的螺旋式膨胀器（2），用于将所述环形体（1）弹性地推向气缸的内壁。 环体（1）由含有3.0〜13.0重量％的铬的不锈钢制成，外周面（11,12）被氮化层（14,15）覆盖。 环体（1）的截面中的外缘长度（Yo）与内缘长度（Yi）的圆形比（τ）在1.08〜1.32的范围内，以保持环体的精确的圆周圆度 氮化层在环体（14,15）的研磨中存活。

公开(公告)号：US20030006562A1

公开(公告)日：2003-01-09

申请号：US10191962

申请日：2002-07-08

Applicant: Burckhardt Compression AG

Inventor： Norbert Feistel

IPC: F16J009/00

CPC classification number: F16J9/02 ,  F16J9/28

Abstract: The piston ring (10) for a dry-running piston compressor consists of a first and a second ring part (10a, 10b) having gaps or butt joints (10e, 10f). These two ring parts (10a, 10b) are arranged to lie mutually concentric with respect to an axis (C). The first ring part (10a) has an essentially L-shaped cross-section, having a first arm (10h) running in the direction of the axis (C) and a second arm (10g) extending outwards in a direction essentially radial to the axis (C). The second arm (10g) has a first bearing surface (10l) and the second ring part (10b) has a second bearing area (10k). The first and the second bearing areas (10l, 10k) are designed to fit perfectly on top of each other. The first and second bearing areas (10k, 10l) exhibit a discontinuity (U1,U2).

Abstract translation: 用于干式活塞式压缩机的活塞环（10）由具有间隙或对接接头（10e，10f）的第一和第二环部（10a，10b）组成。 这两个环形部件（10a，10b）被布置成相对于轴线（C）相互同心。 第一环部分（10a）具有基本上L形的横截面，其具有在轴线（C）的方向上延伸的第一臂（10h）和沿着与轴线（C）基本上径向的方向向外延伸的第二臂 轴（C）。 第二臂（10g）具有第一支承面（101），第二环部（10b）具有第二支承区域（10k）。 第一和第二轴承区域（10l，10k）被设计成完美地配合在彼此的顶部。 第一和第二轴承区域（10k，101）呈现不连续（U1，U2）。

公开(公告)号：US20030001342A1

公开(公告)日：2003-01-02

申请号：US10175240

申请日：2002-06-18

Inventor： Adolf Adrian ,  Andreas Nevoigt

IPC: F16J009/00

CPC classification number: F16F9/3207 ,  F16F9/36 ,  Y10T29/49252 ,  Y10T29/49256 ,  Y10T29/49265 ,  Y10T29/49297 ,  Y10T29/49915

Abstract: A piston-rod scraping ring (7) of elastic material accommodated in an inward opening groove (9) in a dashpot cap (2) and especially intended to scrape water and dirt off a piston rod (1). The object is to allow the ring to be easily inserted into the groove and secured there until the overall dashpot is assembled. The groove is accordingly higher at its outer circumference and its inner circumference (12) is deformed, compressing the rim (8) in place.

公开(公告)号：US20020180158A1

公开(公告)日：2002-12-05

申请号：US09870746

申请日：2001-06-01

Inventor： Denver Secord

IPC: F16J009/00

CPC classification number: F16J1/06

Abstract: A seal for a piston in a circulating piston device such as a motor has a number of rearwardly angled vanes. The piston circulates in an annular passage. The vanes bear against walls of the passage. In one embodiment the vanes are pivotally mounted to a piston and have centers of mass which are located so that centrifugal forces on the vanes, which result from the circulation of the piston, help to bias the vanes against walls of the passage. Each radially inward vane has a center of mass located forward from a pivot axis of the vane. Each radially outward vane has a pivot axis located rearward from a pivot axis of the vane.

Abstract translation: 用于诸如电动机的循环活塞装置中的活塞的密封件具有多个向后倾斜的叶片。 活塞在环形通道中循环。 叶片承受通道的墙壁。 在一个实施例中，叶片可枢转地安装到活塞上并具有质心，其质心位置使得由活塞的循环引起的叶片上的离心力有助于将叶片偏压抵靠通道的壁。 每个径向向内的叶片具有从叶片的枢转轴线向前的质心。 每个径向向外的叶片具有位于叶片枢转轴线后方的枢转轴线。

公开(公告)号：US20020158419A1

公开(公告)日：2002-10-31

申请号：US10054711

申请日：2002-01-22

Inventor： Gordon T. Zitting ,  Todd Hagen

IPC: F16J009/00

CPC classification number: F16J9/16 ,  F16J9/06

Abstract: A seal assembly for a groove or seal gland in a relatively displaceable machine part for sealing an axial machine part extending therethrough comprises a pair of annular seal elements and a support element disposed between the annular elements and radially extending wall of said groove. The annular seal elements have an axial slot therein and a key portion extending therefrom, shaped to engage the axial slot. The seal elements are arranged in an inverted nesting relationship to provide superior sealing characteristics when biased toward the machine part by said support element.

Abstract translation: 用于在相对位移的机器部件中用于密封延伸穿过其中的轴向机器部件上的凹槽或密封压盖的密封组件包括一对环形密封元件和设置在所述环形元件和所述凹槽的径向延伸壁之间的支撑元件。 环形密封元件在其中具有轴向槽，并且从其延伸的键部被成形为接合轴向槽。 密封元件以倒置的嵌套关系布置，以通过所述支撑元件朝向机器部件偏置时提供优异的密封特性。

公开(公告)号：US20020074733A1

公开(公告)日：2002-06-20

申请号：US09969655

申请日：2001-10-04

Applicant: NIPPON PISTON RING CO., LTD

Inventor： Hideo Negishi ,  Hideshi Hitosugi ,  Hideyo Iwama

IPC: F02F005/00 ,  F16J009/00

CPC classification number: F02F11/002 ,  F16J9/00

Abstract: A compression piston ring capable of reducing excessive surface pressure at a gap and adjacent portion thereto during engine operation, and capable of being produced at a low cost. The compression piston ring has generally circular shape without any notched portion. The compression piston ring has a dimensional requirements in that d1/a1 ranges from 40 to 60, and d1/h1 ranges from 30 to 55, in which d1 represents an inner diameter of the piston ring, a1 represents a radial length between inner and outer peripheral surfaces of the piston ring, and h1 represents an axial length of the outer peripheral surface. The compression piston ring is particularly available as a first compression piston ring for a supercharging type diesel engine providing high engine pressure.

Abstract translation: 一种压缩活塞环，其能够在发动机运转时在间隙及其相邻部分减小过大的表面压力，并能够以低成本制造。 压缩活塞环具有大致圆形且没有任何凹口部分。 压缩活塞环具有尺寸要求，其中d1 / a1的范围为40至60，d1 / h1的范围为30至55，其中d1表示活塞环的内径，a1表示内外径之间的径向长度 活塞环的周面，h1表示外周面的轴向长度。 压缩活塞环特别可用作提供高发动机压力的增压型柴油发动机的第一压缩活塞环。