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公开(公告)号：US06598705B2
公开(公告)日：2003-07-29
申请号：US09851085
申请日：2001-05-09
IPC分类号： F01M120
CPC分类号： F01M1/12 , F01M1/16 , F01M2001/123 , F01M2001/126 , Y10T137/2605
摘要： An oil passage extending from an oil pump to a discharge port in an internal combustion engine is, at its halfway point, branched into at least two oil passages, for example, a first oil passage and a second oil passage. One of the at least two branched oil passages, for example, the second oil passage is provided with a restricting portion configured as a first orifice for restricting a flow amount of oil by reducing a diameter of the first orifice. A bypass valve is provided which acts, when a hydraulic pressure in the second oil passage exceeds a specific value, to bypass the first orifice so as to increase the flow rate of oil. It is possible to increase the hydraulic pressure at the time of low speed rotation up to a necessary pressure only by providing the restricting portion, without enhancing the performance of the oil pump. Accordingly, it is possible to suppress the increase in weight and cost of the lubricating system as compared with the prior art lubricating system in which the performance of the oil pump is enhanced, and since it is not required to increase the rotational speed of the oil pump, it is possible to prevent the loss in output of the internal combustion engine due to the increased friction of the oil pump. Further, it is possible to prevent an excessive increase in pressure of the oil passage by the effect of the bypass valve.
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公开(公告)号：US06314934B1
公开(公告)日：2001-11-13
申请号：US09654135
申请日：2000-09-01
IPC分类号： F01M102
CPC分类号： F01M11/062 , F01M2001/123 , F01M2001/126
摘要： In an engine having a dry sump type lubrication structure, a feed pump, a sub-scavenging pump, and a main scavenging pump of an oil pump are all integrally provided by disposing a feed pump rotor, a sub-scavenging pump rotor, and a main scavenging pump rotor in parallel on the same common drive shaft. This arrangement reduces the necessary size and weight of a feed pump and a scavenging pump while increasing the pumping capacity thereof The oil sump is divided into a plurality of oil sumps which are different from each other in their longitudinal and lateral positions. Oil in a first oil sump and a second oil sump is pumped by the main scavenging pump and sub-scavenging pump, respectively. A housing of the oil pump is composed of a first block, a second block, a third block, and a fourth block, wherein oil passages are provided in these blocks. The oil pumped by the main scavenging pump and the oil pumped by the sub-scavenging pump are collectively discharged in a collection discharge passage via the main scavenging pump discharge port and the sub-scavenging pump discharge port, respectively, and the oil thus collected is fed to the oil tank.
摘要翻译： 在具有干式凹槽型润滑结构的发动机中，通过设置供给泵转子，副扫气泵转子和排气泵转子，均一体地设置有油泵的进料泵，副扫气泵和主扫气泵 主清扫泵转子并联在相同的公共驱动轴上。 这种布置减少了进料泵和扫气泵的必要尺寸和重量，同时增加了泵送能力。油底壳被分成在其纵向和横向位置彼此不同的多个油底壳。 第一个油底壳和第二个油底壳的油分别由主扫气泵和副扫气泵泵送。 油泵的壳体由第一块，第二块，第三块和第四块组成，其中油通道设置在这些块中。 由主清扫泵泵送的油和由副扫气泵泵送的油分别经由主扫气泵排出口和副扫气泵排出口一起排放到收集排放通道中，并且将如此收集的油 喂油箱。
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公开(公告)号：US06357413B1
公开(公告)日：2002-03-19
申请号：US09654342
申请日：2000-09-01
申请人： Katsuhiko Ito , Mitsuru Saito , Hideyuki Tawara
发明人： Katsuhiko Ito , Mitsuru Saito , Hideyuki Tawara
IPC分类号： F02B7532
CPC分类号： F02B75/22 , F01M1/02 , F02B61/02 , F02B75/16 , F02F2001/245
摘要： A oil supply system supplies the same oil for lubricating an engine and for driving a hydrostatic infinitely variable transmission. The hydrostatic infinitely variable transmission is built into a crankcase of the engine, resulting in an overall compact configuration. A drive shaft of the hydrostatic infinitely variable transmission is provided parallel with a crankshaft of the engine. Axial centers of the drive shaft and crankshaft can be made hollow and serve as oilways. Further, an axial center of a counter shaft of the hydrostatic infinitely variable transmission can be made hollow and serve as an oilway. By the present oil supply system, engine oil is used in common as drive oil for the hydro-static infinitely variable transmission, and as oil supplied to parts of a cylinder head, a stepped transmission, and other various parts of the engine and transmission, thereby elimating the duplication of oil pumps and filters and reducing the maintanance associated with servicing independent oil systems.
摘要翻译： 供油系统为润滑发动机和驱动静液压无级变速器提供相同的油。 静液压无级变速器内置在发动机的曲轴箱中，从而形成一个整体紧凑的结构。 静液压无级变速器的驱动轴与发动机的曲轴平行设置。 驱动轴和曲轴的轴向中心可以做成中空的，用作油路。 此外，静液压无级变速器的副轴的轴心可以制成中空的并且用作油路。 通过目前的供油系统，发动机油通常用作静水无级变速器的驱动油，并且作为供应到气缸盖，阶梯式变速器和发动机和变速器的其它各种部件的油， 从而消除油泵和过滤器的重复，并减少与独立油系统维修相关的维护。
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公开(公告)号：US06530353B2
公开(公告)日：2003-03-11
申请号：US09851338
申请日：2001-05-09
申请人： Katsuhiko Ito , Masataka Eguchi , Kazuhiro Yasuda
发明人： Katsuhiko Ito , Masataka Eguchi , Kazuhiro Yasuda
IPC分类号： F02F700
CPC分类号： F16C35/077 , F05C2251/042 , F16C9/02 , F16C19/54
摘要： A crankshaft holding structure 10 for use in an internal combustion engine has a front crankshaft 35 supported by a radial roller bearing 25 that is fixed to a crankcase 11 and has an inner side surface 26a. A land 40 of the front crankshaft 35 is held in abutment against the inner side surface 26a to limit crankshafts 30, 35 against axial elongation and deformation. The radial roller bearing 25 has an outside diameter D1 that is the same as an outside diameter of a radial ball bearing 20. The forgoing arrangement includes simplified bushings cast in a crankcase and having bearing press-fitted therein, that allows the bushings to be used as common parts.
摘要翻译： 用于内燃机的曲轴保持结构10具有由曲轴箱11固定的径向滚柱轴承25支撑并具有内侧面26a的前曲轴35。 前曲轴35的平台40保持抵靠内侧表面26a，以限制曲轴30,35抵抗轴向伸长和变形。 径向滚子轴承25具有与径向滚珠轴承20的外径相同的外径D1。上述布置包括铸造在曲轴箱中并具有压配合在其中的轴承的简化轴套，其允许使用轴套 作为公共部分。
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5.发明授权公开(公告)号：US07121163B2
公开(公告)日：2006-10-17
申请号：US10665041
申请日：2003-09-17
申请人： Katsuhiko Ito , Dai Arai , Kazuhiro Yasuda
发明人： Katsuhiko Ito , Dai Arai , Kazuhiro Yasuda
IPC分类号： F16H57/02
CPC分类号： F16H57/04 , F01M11/02 , F01M2001/123 , F02B61/02 , Y10T74/2186
摘要： A lubricating system for a power unit for a vehicle with an internal combustion engine. A static oil hydraulic type non-stage transmission is disposed on a left lateral side of a crankshaft, and a lubricating oil tank is formed integrally with a main body of the internal combustion engine and is disposed on a right lateral side opposite to the side of the transmission, with the crankshaft therebetween.
摘要翻译： 一种用于具有内燃机的车辆的动力单元的润滑系统。 静态油压式非级变速器配置在曲轴的左侧，润滑油箱与内燃机的主体一体形成，并且设置在与内燃机的主体相反侧的右侧 传动，其间具有曲轴。
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公开(公告)号：US07076948B2
公开(公告)日：2006-07-18
申请号：US10802398
申请日：2004-03-17
申请人： Katsuhiko Ito , Shinya Koyama , Kazuhiro Yasuda
发明人： Katsuhiko Ito , Shinya Koyama , Kazuhiro Yasuda
IPC分类号： F16D39/00
摘要： To reduce the projection of a swash plate servo mechanism in the radial direction, and to make a hydraulic continuously variable transmission compact, a swash plate plunger pump includes a pump casing provided with an input driven gear. A pump cylinder and a motor cylinder are connected to a transmission output shaft, and a motor pivot member provided with a motor swash plate member is supported to be pivotally movable. A motor servo mechanism includes a ball screw shaft, a ball nut to which an end portion of the motor pivot member is connected, and a swash plate control motor to rotate the screw shaft. A swash plate control motor, located on the side of a hydraulic pump relative to the input driven gear, is mounted to the outside surface of a transmission housing close to the center axis side of a transmission output shaft.
摘要翻译： 为了减小旋转斜盘伺服机构在径向上的突出，并且为了制造液压无级变速传动装置，斜盘式活塞泵包括设置有输入从动齿轮的泵壳。 泵缸和马达缸连接到变速器输出轴，并且设置有电动机斜盘构件的马达枢转构件被支撑为可枢转地运动。 电机伺服机构包括：滚珠丝杠轴，连接有电机枢转部件的端部的滚珠螺母，以及用于旋转螺杆轴的旋转斜盘控制马达。 相对于输入从动齿轮位于液压泵一侧的旋转斜盘控制马达安装在变速器壳体的外侧，靠近变速器输出轴的中心轴侧。
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公开(公告)号：US06470770B2
公开(公告)日：2002-10-29
申请号：US09867392
申请日：2001-05-31
申请人： Katsuhiko Ito , Kunihiko Fukui , Yoshihiro Yoshida
发明人： Katsuhiko Ito , Kunihiko Fukui , Yoshihiro Yoshida
IPC分类号： F16H4702
CPC分类号： F16H39/14 , Y10T74/19149 , Y10T74/2186
摘要： In a power system for a vehicle, the line segment L connecting between the center O1 of a driving shaft (speed change shaft) of an oil hydrostatic non-stage transmission and the center O2 of a ball screw (ratio change driving shaft) of a ratio change mechanism is set parallel to the mating plane P of the crank case and the cylinder block, while the axis C2 of a detecting shaft is disposed coaxially with the turning axis C1 of a swash plate holder orthogonal to the line segment L, and, in this condition, a ratio detecting sensor is bolted to an upper wall. Wherein the axis C2 of the detecting shaft is set parallel to the cylinder axis C0, and the machining axis for a crank chamber and the machining axis for a fitting portion for the ratio detecting sensor are set parallel to each other.
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公开(公告)号：US20070095306A1
公开(公告)日：2007-05-03
申请号：US11589199
申请日：2006-10-30
申请人： Yasushi Fujimoto , Katsuhiko Ito , Kinya Mizuno , Masako Takahashi , Hiromi Sumi , Hiroshi Sotani
发明人： Yasushi Fujimoto , Katsuhiko Ito , Kinya Mizuno , Masako Takahashi , Hiromi Sumi , Hiroshi Sotani
CPC分类号： F02F7/0068 , F01P5/04
摘要： A water-cooled internal combustion engine configured so as to facilitate the change of the cooling system, thereby reducing costs. The crankcase of the water-cooled internal combustion engine is adapted to journal a crankshaft. The crankcase is covered by a crankcase cover from the axial outside. The crankcase is connected to the crankcase cover through an annular shaped spacer, and at least part of a water pump is formed integrally with the spacer.
摘要翻译： 一种水冷内燃机，其构造为便于冷却系统的变化，从而降低成本。 水冷式内燃机的曲轴箱适于使曲轴轴颈。 曲轴箱由轴向外部由曲轴箱盖覆盖。 曲轴箱通过环形间隔件连接到曲轴箱盖，并且水泵的至少一部分与间隔件一体地形成。
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公开(公告)号：US20070029154A1
公开(公告)日：2007-02-08
申请号：US11496618
申请日：2006-08-01
申请人： Yasushi Fujimoto , Katsuhiko Ito , Masazumi Naito
发明人： Yasushi Fujimoto , Katsuhiko Ito , Masazumi Naito
IPC分类号： F16D47/00
摘要： To provide a layout structure of a clutch lever shaft capable of realizing compact layouts of a whole power unit in which a starter centrifugal clutch and a transmission manual multi-plate clutch are provided, and of a whole vehicle on which the power unit is mounted. A centrifugal clutch shaft and a manual multi-plate clutch shaft are disposed in parallel. The clutch lever shaft of the manual multi-plate clutch is disposed orthogonally and substantially vertically upward in relation to a pressing direction of a friction plate in a vicinity of an end portion of a lifter pin. The clutch lever shaft is disposed between the centrifugal clutch and the manual multi-plate clutch when viewed from a top of the power unit.
摘要翻译： 为了提供能够实现设置有起动离合离合器和变速器手动多板离合器的整体动力单元的紧凑布局的离合器杆轴的布置结构以及安装有动力单元的整个车辆。 离心式离合器轴和手动多板式离合器轴并列设置。 手动多板离合器的离合器杆轴相对于提升销的端部附近的摩擦板的按压方向正交且大致垂直向上设置。 当从动力单元的顶部观察时，离合器杆轴设置在离心式离合器和手动多板式离合器之间。
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10.发明授权公开(公告)号：US06996981B2
公开(公告)日：2006-02-14
申请号：US10801483
申请日：2004-03-16
申请人： Katsuhiko Ito , Yasushi Fujimoto , Hideo Okuzaki
发明人： Katsuhiko Ito , Yasushi Fujimoto , Hideo Okuzaki
IPC分类号： F16H39/14
摘要： In order to provide a rotationally balanced hydraulic swash plate plunger unit, a swash plate plunger pump casing is provided with an unbalanced flange to balance a casing which has a swash plate member therein, without requiring a separate counter weight. A hydraulic swash plate plunger pump includes a pump swash plate member, installed in the pump casing and rotatably supported in an inclined manner therein, and a pump cylinder having a plurality of pump plungers slidably disposed therein. An unbalanced five-sided flange portion is formed integrally with the outer wall of the pump casing, to rotationally balance the entire unit.
摘要翻译： 为了提供旋转平衡的液压旋转斜盘柱塞单元，旋转斜盘柱塞泵壳体设置有不平衡的凸缘以平衡其中具有斜盘构件的壳体，而不需要单独的配重。 液压旋转斜盘柱塞泵包括安装在泵壳体中并以倾斜方式可旋转地支撑的泵斜盘构件和具有可滑动地设置在其中的多个泵柱塞的泵缸。 与泵壳体的外壁一体形成不平衡的五边缘部分，以使整个单元旋转平衡。
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