公开(公告)号：US07493882B2

公开(公告)日：2009-02-24

申请号：US11847442

申请日：2007-08-30

申请人： Iwao Hiraishi ,  Katsuaki Ogawa ,  Hiromi Ishikawa ,  Tsugane Hirase ,  Kazuhiro Sameshima

发明人： Iwao Hiraishi ,  Katsuaki Ogawa ,  Hiromi Ishikawa ,  Tsugane Hirase ,  Kazuhiro Sameshima

IPC分类号： F02F5/00

CPC分类号： F16J9/00

摘要： A combination of a cylinder liner and a piston ring, wherein the cylinder liner includes, silicon: 23.0-28.0% by weight, magnesium: 0.80-2.0% by weight, copper: 3.0-4.5% by weight, iron: 0.25% by weight or less, nickel: 0.01% by weight or less, wherein surface roughness profile of the inner circumference surface has Rz=0.5 to 1.0 μm, Rk=0.2 to 0.4 μm, Rpk=0.05 to 0.1 μm, Rvk=0.08 to 0.2 μm, wherein the piston ring includes carbon: 0.6-0.7% by weight, chrome: 13-14% by weight, molybdenum: 0.2-0.4% by weight, silicon: 0.25-0.50% by weight, manganese: 0.2-0.5% by weight, and wherein carbides with the diameter of 5.0 μm and less are 4-10%.

摘要翻译： 气缸套和活塞环的组合，其中气缸套包括：硅：23.0-28.0重量％，镁：0.80-2.0重量％，铜：3.0-4.5重量％，铁：0.25重量％ 以下，镍：0.01重量％以下，其中，内周面的表面粗糙度分布为Rz = 0.5〜1.0μm，Rk = 0.2〜0.4μm，Rpk = 0.05〜0.1μm，Rvk = 0.08〜0.2μm， 其中活塞环包括：0.6-0.7重量％的碳，铬：13-14重量％，钼：0.2-0.4重量％，硅：0.25-0.50重量％，锰：0.2-0.5重量％ 其中直径5.0μm以下的碳化物为4-10％。

公开(公告)号：US20080053396A1

公开(公告)日：2008-03-06

申请号：US11847442

申请日：2007-08-30

申请人： Iwao HIRAISHI ,  Katsuaki Ogawa ,  Hiromi Ishikawa ,  Tsugane Hirase ,  Kazuhiro Sameshima

发明人： Iwao HIRAISHI ,  Katsuaki Ogawa ,  Hiromi Ishikawa ,  Tsugane Hirase ,  Kazuhiro Sameshima

IPC分类号： F02F1/00

CPC分类号： F16J9/00

摘要： The disclosed is a combination of a cylinder liner and a piston ring which contacts to a inner circumference surface of the cylinder liner at the pressure of 0.03 to 0.2 MPa, wherein the composition of the cylinder liner includes, silicon: 23.0 to 28.0% by weight, magnesium: 0.80 to 2.0% by weight, copper: 3.0 to 4.5% by weight, iron: 0.25% by weight or less, nickel: 0.01% by weight or less, and the rest: unavoidable impurities and aluminum, and wherein surface roughness profile of the inner circumference surface has Rz 0.5 to 1.0 μm, Rk=0.2 to 0.4 μm, Rpk=0.05 to 0.1 μm, Rvk=0.08 to 0.2 μm, meanwhile, wherein the composition of a piston ring includes carbon: 0.6 to 0.7% by weight, chrome: 13 to 14% by weight, molybdenum: 0.2 to 0.4% by weight, silicon: 0.25 to 0.50% by weight, manganese: 0.2 to 0.5% by weight, and the rest: unavoidable impurities and iron, and wherein carbides with the diameter of 5.0 μm and less are contained at the area rate of 4 to 10%, and the surface roughness of an outer circumference sliding surface is Rz=0.8 μm or less, and RPk=0.15 μm or less.

摘要翻译： 所公开的是气缸套和活塞环的组合，其在0.03至0.2MPa的压力下与气缸套的内周表面接触，其中气缸套的组成包括硅：23.0至28.0重量％ ，镁：0.80〜2.0重量％，铜：3.0〜4.5重量％，铁：0.25重量％以下，镍：0.01重量％以下，其余为不可避免的杂质和铝，表面粗糙度 内周面的轮廓Rz为0.5〜1.0μm，Rk = 0.2〜0.4μm，Rpk = 0.05〜0.1μm，Rvk = 0.08〜0.2μm，其中活塞环的组成为碳：0.6〜0.7％ 的铬：13〜14重量％，钼：0.2〜0.4重量％，硅：0.25〜0.50重量％，锰：0.2〜0.5重量％，其余：不可避免的杂质和铁，其中 直径5.0μm以下的碳化物的面积率为4〜10％，表面粗糙 外圆滑动面的β为Rz =0.8μm以下，RPk =0.15μm以下。

公开(公告)号：US20130328274A1

公开(公告)日：2013-12-12

申请号：US13985733

申请日：2012-02-27

申请人： Hiroyuki Sugiura ,  Atsushi Chiba ,  Makoto Kajiwara ,  Kazuhiro Fujimura ,  Katsuaki Ogawa ,  Kazuhiro Sameshima

发明人： Hiroyuki Sugiura ,  Atsushi Chiba ,  Makoto Kajiwara ,  Kazuhiro Fujimura ,  Katsuaki Ogawa ,  Kazuhiro Sameshima

IPC分类号： F16J9/26

CPC分类号： C23C14/021 ,  B23P15/06 ,  C23C14/16 ,  C23C14/48 ,  F16J9/20 ,  F16J9/26

摘要： The second compression ring is formed such that the outer peripheral surface shape has a tapered face, and the radial cross-sectional shape is a rectangular ring, a scraper ring, or a Napier ring, and has a piston ring base and a hard film provided at least on an outer peripheral sliding surface thereof. The piston ring base is composed of a low-alloy steel or carbon steel having a Vickers hardness of Hv 350 Hv 550. The outer peripheral sliding surface is formed so that the axial length is from 0.01 to 0.30 mm between the outer edge end part of the tapered outer peripheral sliding surface and an imaginary line contacting with a lower end surface where a curved surface having a diameter that decreases gradually inward from the outer edge end part toward the lower end in the axial direction is parallel to a ring underside.

公开(公告)号：US5061861A

公开(公告)日：1991-10-29

申请号：US347492

申请日：1989-05-04

申请人： Kazuhiro Sameshima ,  Masaru Ohnishi

发明人： Kazuhiro Sameshima ,  Masaru Ohnishi

IPC分类号： G05F3/26 ,  G06K15/12 ,  H05B33/08

CPC分类号： H05B33/0812 ,  G05F3/262 ,  G06K15/1247 ,  H05B33/0842 ,  H05B33/0854 ,  Y02B20/343

摘要： An MOS integrated circuit for driving light-emitting diodes (LED's) comprises first constant current circuits, each of which is for one of the LED's and includes a first drive circuit for maintaining the drive current for the associated LED at a predetermined value established by a first reference voltage. The integrated circuit further includes a second constant current circuit which is connected to all of the first constant current circuits to form a mirror circuit with each of said first constant current circuits. A current detecting element detects a predetermined magnitude of current flowing therethrough and develops a current-representative detection voltage. A second drive circuit within the second constant current circuit responds to the detection voltage and a second reference voltage by maintaining said first reference voltage at a predetermined value so that the LED drive current is determined by the said detection voltage and second reference voltage.