公开(公告)号：US4261719A

公开(公告)日：1981-04-14

申请号：US6535

申请日：1979-01-25

申请人： Akiyoshi Gotoh ,  Taichi Katsuki ,  Takaharu Goto ,  Takumi Mizokawa ,  Noritoshi Sakai

发明人： Akiyoshi Gotoh ,  Taichi Katsuki ,  Takaharu Goto ,  Takumi Mizokawa ,  Noritoshi Sakai

IPC分类号： F25J3/04

CPC分类号： F25J3/04781 ,  F25J3/0429 ,  F25J3/04412 ,  F25J2205/24 ,  F25J2230/40 ,  F25J2240/42 ,  F25J2245/40

摘要： A method of and apparatus for optimizing the rate of material air supply to an air separation plant, for preserving a stable operation of the plant, through stabilizing heat balance and material balance in the plant irrespective of variation in the flow rate of a gas through an expansion turbine incorporated in the plant and the flow rate of product gases so as to optimize the purity and amount of produced gas. The control for the optimization is performed making a ratio of the difference between the flow rate of the material air and the flow rate of the gas through the expansion turbine to the flow rate of the product gases, as an essential factor for the control.

摘要翻译： 一种用于优化空气分离设备的材料空气供应速率的方法和装置，用于通过稳定设备中的热平衡和材料平衡来稳定设备的稳定运行，而不管气体通过 掺入到设备中的膨胀涡轮机和产物气体的流量，以便优化产生的气体的纯度和量。 执行优化的控制，使得材料空气的流量与通过膨胀涡轮机的气体的流量之间的差异与产物气体的流量的比率作为控制的重要因素。

公开(公告)号：US4251248A

公开(公告)日：1981-02-17

申请号：US36015

申请日：1979-05-04

申请人： Takeshi Iyoki ,  Taichi Katsuki ,  Takumi Mizokawa ,  Takaharu Goto

发明人： Takeshi Iyoki ,  Taichi Katsuki ,  Takumi Mizokawa ,  Takaharu Goto

IPC分类号： F25J3/04 ,  G05B7/02

CPC分类号： F25J3/04848 ,  F25J3/0429 ,  F25J3/04412 ,  F25J3/04836 ,  F25J2205/24 ,  F25J2245/40

摘要： A method and apparatus for automatic change of operations in an air separation plant in increasing or decreasing the amounts of products. The present invention is characterized in that intended change values of the flow rate of feed air to be introduced into an air separation plant, the flow rate of liquid air recycled to an upper tower from a lower tower of a rectification column, the flow rate of recycled liquid nitrogen and the flow rate of an expansion turbine gas flowing in an expansion turbine are computed from the values of increased or decreased amounts of products. At the time of initiation of change of the flow rates, the ratio of the flow rate of feed air to the flow rate of the product is increased, and the flow rates of the feed air, recycled liquid air, recycled liquid nitrogen, expansion turbine gas and product are automatically changed to the intended values while gradually reducing the above ratio, and the period ranging from the point at which the intended values are attained to the point when the unstable operation state in the air separation plant is completed is set as the operation change-inhibiting period and the subsequent change of the flow rates is inhibited during this period.

摘要翻译： 一种用于在增加或减少产品量的情况下自动改变空分设备中的操作的方法和装置。 本发明的特征在于，引入空气分离装置的进料空气的流量的期望变化值，从精馏塔的下塔再循环到上塔的液体空气的流量， 再循环的液氮，并且在膨胀涡轮机中流动的膨胀涡轮机气体的流量根据产品数量的增加或减少的值计算。 在开始流量变化时，进料空气的流量与产品的流速的比率增加，进料空气，再循环液体空气，再循环液氮，膨胀涡轮机的流量 气体和产品在逐渐降低上述比率的同时自动变化为预期值，并且从达到预期值的点到空气分离装置中的不稳定运行状态完成的时间段被设定为 在此期间抑制了操作变化抑制期和随后的流量变化。

公开(公告)号：US4934347A

公开(公告)日：1990-06-19

申请号：US208312

申请日：1988-06-15

申请人： Seiji Suga ,  Tatsuyuki Matsuya ,  Seinosuke Hara ,  Hiromichi Ofuji ,  Takayuki Arai ,  Takaharu Goto

发明人： Seiji Suga ,  Tatsuyuki Matsuya ,  Seinosuke Hara ,  Hiromichi Ofuji ,  Takayuki Arai ,  Takaharu Goto

IPC分类号： F02B3/06 ,  F02B75/04

CPC分类号： F02B75/044 ,  F02B3/06

摘要： The pressure prevailing in a variable volume chamber which controls the compression ratio developed by a piston, is used control the movement of a valve which regulates the supply and draining of the chamber. During high load the high pressure is used to drain the chamber while under light load the lower pressure permits the chamber to be supplied with hydraulic fluid in a manner which tends to fill the same during induction phases and the like when the pressure in the cylinder is low.

摘要翻译： 控制由活塞产生的压缩比的可变容积室中的压力用于控制调节室的供应和排出的阀的运动。 在高负载期间，高压用于排放室，而在轻负载下，较低的压力允许在以下方式向腔室供应液压流体：在气缸中的压力为 低。

公开(公告)号：US4547223A

公开(公告)日：1985-10-15

申请号：US377200

申请日：1982-05-04

申请人： Takaharu Goto ,  Takeshi Sato ,  Kouzou Sakai ,  Motohiko Ii

发明人： Takaharu Goto ,  Takeshi Sato ,  Kouzou Sakai ,  Motohiko Ii

IPC分类号： C04B24/32 ,  G10H1/34

CPC分类号： C04B24/32

摘要： This invention relates to a cement-shrinkage-reducing agent and a cement composition comprising a compound of the general formula RO(AO).sub.n H (in which R represents a C.sub.1-7 alkyl or C.sub.5-6 cycloalkyl radical, A represents one or more C.sub.2-3 alkylene radicals, and n has a value of 1-10) for use in making cement mortar and concrete.

摘要翻译： PCT No.PCT / JP81 / 00042 Sec。 1982年5月4日 102（e）日期1982年5月4日PCT提交1981年3月2日PCT公布。 出版物WO82 / 03071 本发明涉及水泥收缩还原剂和水泥组合物，其包含通式为RO（AO）nH的化合物（其中R表示C1-7烷基或C5-6环烷基） A表示一个或多个C2-3亚烷基，n为1-10）用于制备水泥砂浆和混凝土。

公开(公告)号：US5448942A

公开(公告)日：1995-09-12

申请号：US202242

申请日：1994-02-25

申请人： Takayuki Arai ,  Yoshiki Sekiya ,  Takaharu Goto

发明人： Takayuki Arai ,  Yoshiki Sekiya ,  Takaharu Goto

IPC分类号： F02F3/00 ,  F02F3/02 ,  F02F3/28 ,  F16J1/00 ,  F16J1/04

CPC分类号： F02F3/022 ,  F16J1/00 ,  F05C2251/042

摘要： A piston is free to slide in an engine cylinder, this piston comprising a piston head of circular cross-section, a skirt formed such that it is continuous with the lower part of said piston head, a piston pin passing through the skirt, and a connecting rod connected via this piston pin. This skirt comprises an upper part and a lower part which respectively have an elliptical horizontal cross-section with a short axis parallel to the piston pin, the horizontal cross-section of the upper part of the skirt having a higher eccentricity than that of the lower part of the skirt. The skirt further comprises a taper surface which smoothly connects its upper and lower parts. The contact surface between the skirt and the cylinder therefore has an inverted T shape so that the contact surface of the lower part of the skirt can be increased. It is therefore possible to set the distance from the center of the piston pin to the lower edge of the skirt such that it is no greater than 1.8 times the distance from the center of the piston pin to the upper edge of the skirt, so making the piston more compact while maintaining operational stability.

摘要翻译： 活塞在发动机气缸中自由滑动，该活塞包括圆形横截面的活塞头，形成为与所述活塞头的下部连续的裙部，穿过裙部的活塞销和 连杆通过该活塞销连接。 该裙部包括分别具有平行于活塞销的短轴的椭圆形水平横截面的上部和下部，裙部的上部的水平横截面具有比下部更高的偏心度 裙子的一部分。 裙部还包括平滑地连接其上部和下部的锥形表面。 因此，裙部和圆筒之间的接触表面具有倒T形，从而可以增加裙部下部的接触表面。 因此，可以设定从活塞销的中心到裙部的下边缘的距离，使其不大于从活塞销的中心到裙部的上边缘的距离的1.8倍，因此使 活塞更紧凑，同时保持运行稳定性。

公开(公告)号：US5193436A

公开(公告)日：1993-03-16

申请号：US824850

申请日：1992-01-23

申请人： Kyugo Hamai ,  Takayuki Arai ,  Takaharu Goto ,  Hisafumi Usuki

发明人： Kyugo Hamai ,  Takayuki Arai ,  Takaharu Goto ,  Hisafumi Usuki

IPC分类号： F02F3/00 ,  F16J1/04

CPC分类号： F16J1/04

摘要： This invention relates to the shape of a skirt below the piston head of a piston in an engine cylinder and continuous with it. The skirt has a basic configuration comprising at least two type of elliptical horizontal cross-section with a short axis parallel to said piston pin, and a barrel-shaped vertical cross-section smaller at its top and bottom. A T-shaped projection is also provided on the lateral surfaces of the skirt corresponding to the two ends of the long axis of said ellipse, this projection consisting of a vertical piece and two side pieces situated on either side of the vertical piece. When the engine is running, the skirt comes into contact with the inner surface of the cylinder via this projection. The vertical section of the lower part of the skirt from below the lower edge of the two side pieces to the lower edge of the skirt is inclined toward the inside of said barrel-shaped vertical section so that the skirt is joined smoothly to the projection below the two side pieces. Accumulation of pressure on the edge of the projection is thereby prevented, which reduces frictional resistance and prevents wear between the piston and the cylinder.

摘要翻译： 本发明涉及在发动机气缸中的与活塞头连续的活塞头下方的裙部的形状。 裙部具有包括至少两种类型的椭圆形水平横截面的基本构造，其中短轴平行于所述活塞销，以及在其顶部和底部较小的桶形垂直横截面。 T形突起还设置在与所述椭圆的长轴的两端相对应的裙部的侧表面上，该突起由竖直件和位于垂直件两侧的两个侧片构成。 当发动机运行时，裙部经由该突起与气缸的内表面接触。 裙部下部从两个侧部的下边缘的下部到裙部的下边缘的垂直部分朝向所述筒状垂直部分的内侧倾斜，使得裙部平滑地连接到下面的突起部 两边的一块。 从而防止突起的边缘上的压力积聚，这降低了摩擦阻力并且防止了活塞和气缸之间的磨损。

公开(公告)号：US5107807A

公开(公告)日：1992-04-28

申请号：US580544

申请日：1990-09-11

申请人： Takayuki Arai ,  Takaharu Goto ,  Kyugo Hamai

发明人： Takayuki Arai ,  Takaharu Goto ,  Kyugo Hamai

IPC分类号： F02F3/02

CPC分类号： F02F3/022

摘要： A piston for an internal combustion engine comprises a skirt portion formed with a piston pin hole. The skirt portion includes in an axial direction of the piston a first portion upper than an axis of the piston pin hole, and a second portion lower than the axis thereof. The first portion has a first cross section formed in accordance with a first ellipse, and the second portion has a second cross section formed in accordance with a second ellipse. The first and second ellipses have two foci, respectively, on a center plane of the piston which is perpendicular to the axis of the piston pin hole. The first ellipse is smaller in ellipticity than the second ellipse. The skirt portion including a ramp portion connecting the first portion to the second portion.

公开(公告)号：US5035210A

公开(公告)日：1991-07-30

申请号：US557081

申请日：1990-07-25

申请人： Takayuki Arai ,  Takaharu Goto ,  Kyugo Hamai

发明人： Takayuki Arai ,  Takaharu Goto ,  Kyugo Hamai

IPC分类号： F02F3/00 ,  F02F5/00 ,  F16J1/02 ,  F16J9/00 ,  F16J9/14

CPC分类号： F16J9/00 ,  F02F3/00 ,  F05C2251/042

摘要： A piston assembly of an internal combustion engine is provided with a piston structure with which oil comsumption is suppressed. A piston of the assembly is disposed inside each cylinder wall of the engine and formed with a top land and the second land. A compression ring groove is formed between the top and second lands. A first chamfered surface is formed at the upper peripheral edge of the second land, and a second chamfered surface larger in width than the first chamfered surface is formed at the lower peripheral edge of the top land. A compression ring having a butt-type ring gap is disposed in the compression ring groove to be slidably contacted with the cylinder wall. With this structure, the oil comsumption is effectively suppressed in both high pressure and negative pressure conditions during operation of the combustion chamber corresponding to the cylinder.

公开(公告)号：US5547505A

公开(公告)日：1996-08-20

申请号：US452644

申请日：1995-05-25

申请人： Kazuya Nakatsu ,  Takaharu Goto ,  Toru Higaki ,  Hideki Endo ,  Satoru Hirose ,  Yukinori Yamazaki

发明人： Kazuya Nakatsu ,  Takaharu Goto ,  Toru Higaki ,  Hideki Endo ,  Satoru Hirose ,  Yukinori Yamazaki

IPC分类号： C04B7/345 ,  C04B7/02

CPC分类号： C04B7/345 ,  C04B2103/0089

摘要： Compositions for low heat cements developed especially for massive concrete works and which exhibit a compressive strength/heat of hydration ratio of at least 7.0 at the age of 13 weeks. One of two inventions provides a powder prepared by mixing CaO, SiO.sub.2, and Al.sub.2 O.sub.3 materials, melting the mixture, quenching the melt, and grinding the quenched matter, the powder being composed mainly of amorphous substances and chemically having a CaO/SiO.sub.2 (molar ratio) of 0.8-1.5 and an Al.sub.2 O.sub.3 content of no more than 10 wt. %. The other invention provides a mixed powder comprising no less than 70 wt. % of a powder and no more than 30 wt. % of an addition (portland cement or the like), the powder being the same as that of the first invention in both predominance of amorphous substances and CaO/SiO.sub.2 (molar ratio) excepting the Al.sub.2 O.sub.3 content which is less than 12 wt. % in the second invention.

摘要翻译： 用于低热粘结剂的组合物特别用于大规模混凝土工程，并且在13周龄时具有至少7.0的抗压强度/水合比热。 两种发明之一提供了通过混合CaO，SiO 2和Al 2 O 3材料制备的粉末，熔化混合物，淬火熔体和研磨淬火物质，该粉末主要由无定形物质组成，化学上具有CaO / SiO 2（摩尔比 ）为0.8-1.5，Al2O3含量不超过10重量％。 ％。 另一发明提供了一种混合粉末，其含有不少于70wt。 ％的粉末和不超过30wt。 ％的添加剂（波特兰水泥等），除了小于12重量％的Al 2 O 3含量之外，除了无定形物质和CaO / SiO 2（摩尔比）外，粉末与第一发明相同。 ％。

公开(公告)号：US4809650A

公开(公告)日：1989-03-07

申请号：US104910

申请日：1987-10-06

申请人： Takayuki Arai ,  Hiromichi Ofuji ,  Takaharu Goto ,  Takehisa Kondo ,  Seinosuke Hara ,  Seiji Suga ,  Hiroaki Hamada ,  Tatsuyuki Matsuya

发明人： Takayuki Arai ,  Hiromichi Ofuji ,  Takaharu Goto ,  Takehisa Kondo ,  Seinosuke Hara ,  Seiji Suga ,  Hiroaki Hamada ,  Tatsuyuki Matsuya

IPC分类号： F02B3/06 ,  F02B75/04 ,  F02D15/02

CPC分类号： F02B75/044 ,  F02B3/06

摘要： To induce high compression engine operation hydraulic fluid is fed into a variable volume chamber defined between an outer piston and an inner one which is reciprocatively disposed therein via a supply passage which includes a one-way valve. When low compression engine operation is required the pressure supplied to a valve chamber in which a spool valve is disposed is increased to the point whereat the spool valve moves to a position wherein the supply passage is closed and a drain and transfer passages are opened. The drain passage leads directly to the cylinder bore so as to enable the hydraulic fluid in the variable volume chamber to be vented unrestrictedly. The transfer passage permits a small amount of hydraulic fluid to flow through the variable volume chamber to the drain passage in a manner which cools the same and prevents degradation of the hydraulic fluid retained in the one-way valve and the like.

摘要翻译： 为了引起高压缩发动机操作，液压流体被供给到限定在外活塞和内部活塞之间的可变容积室中，所述可变容积室通过包括单向阀的供应通道往复地设置在内部活塞中。 当需要低压缩发动机运转时，供给到其中设置有滑阀的阀室的压力增加到滑阀移动到供给通道关闭并且排出和输送通道打开的位置的点。 排水通道直接通向气缸孔，以使可变容积室中的液压流体不受限制地排放。 传送通道允许少量的液压流体以可冷却的方式流过可变容积室到排放通道，并防止保持在单向阀等中的液压流体的劣化。