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1. 发明授权

US10066621B2 Internal gear pump including an outer ring having cam protruded parts 有权
公开(公告)号：US10066621B2
公开(公告)日：2018-09-04
申请号：US14088229
申请日：2013-11-22
申请人： YAMADA MANUFACTURING CO., LTD
发明人： Masato Izutsu , Takatoshi Watanabe , Junichi Miyajima , Yasuhiro Kosugi , Kosuke Yamane
IPC分类号： F04C14/22 , F04C2/10 , F04C14/10
摘要： The internal gear pump according to the present invention includes: an inner rotor; an outer rotor that rotates with predetermined eccentricity to a rotation center of the inner rotor; an outer ring that rotatably holds the outer rotor, and has at least three cam protruded parts formed; a pump housing that has a rotor chamber; pins in the same number as that of the cam protruded parts; and operation means for oscillating the outer ring. Positions of the pins are set so that a diameter center of the holding-inner peripheral part of the outer ring is moved by the operation means along a locus of a circle, the radius of which is the eccentricity to the rotation center of the inner rotor.

2. 发明授权

US09157436B2 Variable oil pump with improved partitioning section 有权
标题翻译：可变油泵具有改进的分隔部分
公开(公告)号：US09157436B2
公开(公告)日：2015-10-13
申请号：US13943656
申请日：2013-07-16
申请人： YAMADA MANUFACTURING CO., LTD
发明人： Masato Izutsu , Takatoshi Watanabe
IPC分类号： F04C2/10 , F04C14/22 , F04C2/08 , F04C15/06 , F04C14/12
CPC分类号： F04C14/22 , F04C2/084 , F04C2/102 , F04C14/12 , F04C15/06 , F04C2250/102
摘要： A oil pump includes a pump housing in which a first partitioning section is formed between a trailing end section of the intake port and a leading end section of the discharge port, and a second partitioning section is formed between a trailing end section of a discharge port and a leading end section of an intake port. A width dimension of the second partitioning section is the same as or larger than the formation range of a space between teeth which is constituted by an inner rotor and an outer rotor passing the second partitioning section during low-speed rotation. A protruding surface section is formed in the same plane as and continuously with the second partitioning section from the vicinity of an inner diameter side of the trailing end section of the discharge port.
摘要翻译：油泵包括泵壳体，其中在进气口的后端部分和排出口的前端部分之间形成有第一分隔部分，并且第二分隔部分形成在排出口的后端部分之间和进气口的前端部分。第二分隔部的宽度尺寸与由低速旋转中的通过第二分隔部的内转子和外转子构成的齿之间的间隔的形成范围相同或者更大。在与排出口的后端部的内径侧的附近相邻的第二分隔部形成有与第二分隔部连续的同一平面上的突出面部。

3. 发明申请

US20140060476A1 ENGINE LUBRICATION CONTROL SYSTEM 有权
公开(公告)号：US20140060476A1
公开(公告)日：2014-03-06
申请号：US14012872
申请日：2013-08-28
申请人： Yamada Manufacturing Co., Ltd.
发明人： Takatoshi Watanabe , Hidehiko Koyashiki , Junichi Miyajima
IPC分类号： F01M1/16
CPC分类号： F01M1/16
摘要： The present invention provides an engine lubrication control system including an engine, an oil pump which is driven by the engine, an oil circuit which extends downstream from the oil pump, and a plurality of oil branch supply paths which branch from the oil circuit and supply oil to each part of the engine. An electronically-controlled first hydraulic control valve which controls, in a stepwise manner, a discharge pressure of the oil pump relative to a speed of the engine is disposed on the oil circuit, a hydraulically-driven second hydraulic control valve is disposed on at least one of the plurality of oil branch supply paths, and a downstream hydraulic pressure of the second hydraulic control valve is controlled to be lower than a downstream hydraulic pressure of the first hydraulic control valve of the oil circuit at least across a predetermined engine speed range.

4. 发明申请

US20140023539A1 OIL PUMP 有权
标题翻译：油泵
公开(公告)号：US20140023539A1
公开(公告)日：2014-01-23
申请号：US13943656
申请日：2013-07-16
申请人： YAMADA MANUFACTURING CO., LTD.
发明人： Masato Izutsu , Takatoshi Watanabe
IPC分类号： F04C14/22
CPC分类号： F04C14/22 , F04C2/084 , F04C2/102 , F04C14/12 , F04C15/06 , F04C2250/102
摘要： The oil pump includes a pump housing in which a second partitioning section is formed between a trailing end section of a discharge port and a leading end section of an intake port. The width dimension of the second partitioning section is the same as or slightly larger than the formation range of a space between teeth which is constituted by an inner rotor and an outer rotor passing the second partitioning section during low-speed rotation. A protruding surface section is formed in the same plane as and continuously with the second partitioning section from the vicinity of an inner diameter side of the trailing end section of the discharge port. The protruding surface section and the second partitioning section are the same as or slightly larger than the formation range of the space between teeth which passes the protruding surface section and the second partitioning section during high-speed rotation.
摘要翻译：油泵包括泵壳体，其中在排出口的尾端部分和进气口的前端部分之间形成有第二分隔部分。第二分隔部的宽度尺寸与由低速旋转中的内转子和通过第二分隔部的外转子构成的齿之间的间隔的形成范围相同或略大。在与排出口的后端部的内径侧的附近相邻的第二分隔部形成有与第二分隔部连续的同一平面上的突出面部。突出面部和第二分割部与高速旋转时通过突出面部和第二分割部的齿之间的间隔的形成范围相同或略大。

5. 发明授权

US10851687B2 Relief valve device 有权
公开(公告)号：US10851687B2
公开(公告)日：2020-12-01
申请号：US16243336
申请日：2019-01-09
申请人： YAMADA MANUFACTURING CO., LTD.
发明人： Takatoshi Watanabe , Junichi Miyajima , Atsushi Kaneko , Yuya Kato
IPC分类号： F01M1/16 , F01M1/02 , F16K17/04 , F16K17/06
摘要： A relieve valve device includes a housing including a valve chamber, an orifice, and a relief discharge port, a valve body that opens and closes the relief discharge port while moving inside the valve chamber of the housing, a relief valve including an elastic member that elastically biases the valve body in a direction in which the valve body closes the relief discharge port, and an oil control valve that controls a supply of oil into the valve chamber. An inlet port for the oil supplied from the oil control valve and the orifice are configured such that the oil can always circulate in the valve chamber. The valve chamber includes a first valve passage portion including the orifice, and a second valve passage portion. The valve body includes a first valve portion and a second valve portion arranged in an axial direction.

6. 发明申请

US20160090983A1 OIL PUMP STRUCTURE 有权
标题翻译：油泵结构
公开(公告)号：US20160090983A1
公开(公告)日：2016-03-31
申请号：US14852531
申请日：2015-09-12
申请人： YAMADA MANUFACTURING CO., LTD.
发明人： Junichi Miyajima , Takatoshi Watanabe , Masato lzutsu , Masaki Ogawara
IPC分类号： F04C14/24 , F04C14/18 , F04C2/10
CPC分类号： F04C14/226 , F04C2/102
摘要： An oil pump structure including: an oil pump having a first hydraulic control chamber and a second hydraulic control chamber; a hydraulic control valve having a valve operating oil passage, a first inflow passage, a second inflow passage, a first outflow passage, a second outflow passage and a drain flow passage; and an oil circuit, wherein the hydraulic control valve is connected to a branching flow passage of the oil circuit; a spool valve body of the hydraulic control valve has a front valve section, a rear valve section and an intermediate valve section, which are formed perpendicularly to the axial direction of a connecting shaft; an axial-direction dimension of the intermediate valve section is larger than an axial-direction dimension of the second outflow passage; the second outflow passage and the drain flow passage are both accommodated temporarily between the intermediate valve section and the front valve section due to movement of the spool valve body; and in the hydraulic control valve, a control hydraulic pressure is applied at all times to the first hydraulic control chamber, and the control hydraulic pressure is increased and decreased in the second hydraulic control chamber.
摘要翻译：一种油泵结构，包括：具有第一液压控制室和第二液压控制室的油泵; 液压控制阀，其具有阀工作油路，第一流入通道，第二流入通道，第一流出通道，第二流出通道和排出流路; 以及油路，其中所述液压控制阀连接到所述油路的分支流路; 液压控制阀的滑阀阀体具有与连接轴的轴向垂直的前阀部，后阀部和中间阀部，所述中间阀部的轴向尺寸大于所述第二流出流路的轴向尺寸。由于滑阀阀体的移动，第二流出通道和排水流路两者暂时容纳在中间阀部分和前阀部分之间; 并且在液压控制阀中，一直施加控制液压到第一液压控制室，并且在第二液压控制室中控制液压增加和减小。

7. 发明授权

US09068485B2 Engine lubrication control system 有权
标题翻译：发动机润滑控制系统
公开(公告)号：US09068485B2
公开(公告)日：2015-06-30
申请号：US14012881
申请日：2013-08-28
申请人： YAMADA MANUFACTURING CO., LTD
发明人： Takatoshi Watanabe , Hidehiko Koyashiki , Junichi Miyajima
IPC分类号： F01M1/02 , F01M1/16
CPC分类号： F01M1/16
摘要： The present invention provides an engine lubrication control system including an engine, an oil pump which is driven by the engine, an oil circuit which extends downstream from the oil pump, and a plurality of oil branch supply paths which branch from the oil circuit and supply oil to each part of the engine. An electronically-controlled first hydraulic control valve which controls, in a stepwise manner, a discharge pressure of the oil pump relative to a speed of the engine is disposed on the oil circuit, a hydraulically-driven second hydraulic control valve is disposed on at least one of the plurality of oil branch supply paths, and a downstream hydraulic pressure of the second hydraulic control valve is controlled to be lower than a downstream hydraulic pressure of the first hydraulic control valve of the oil circuit at least across a predetermined engine speed range.
摘要翻译：本发明提供一种发动机润滑控制系统，其包括发动机，由发动机驱动的油泵，从油泵下游延伸的油路，以及从油路分支供给的多个油分支供给路径油到发动机的每个部分。一个电子控制的第一液压控制阀，其以逐步的方式控制油泵相对于发动机的速度的排出压力设置在油路上，液压驱动的第二液压控制阀至少设置在至少在预定的发动机转速范围内，多个油分支供给路径中的一个和第二液压控制阀的下游液压被控制为低于油路的第一液压控制阀的下游液压。

8. 发明授权

US09039397B2 Rotor for oil pump with different contours for the drive-side versus non-drive side of the teeth 有权
标题翻译：转子用于油泵的驱动侧与非驱动侧不同的轮廓
公开(公告)号：US09039397B2
公开(公告)日：2015-05-26
申请号：US13903877
申请日：2013-05-28
申请人： YAMADA MANUFACTURING CO., LTD
发明人： Kenichi Fujiki , Masato Izutsu , Takatoshi Watanabe
IPC分类号： F04C2/10 , F04C2/06 , F04C2/08
CPC分类号： F04C2/10 , F04C2/084 , F04C2/102
摘要： A rotor for an oil pump according to the present invention is a rotor that includes an inner rotor configured by teeth, each of which has a plurality of ellipses or circles, and an outer rotor that is disposed on the outside of the inner rotor and has one tooth more than the inner rotor, wherein, in a tooth of the inner rotor, a tooth top and a tooth root of a drive-side half-tooth region extending from the tooth top to the tooth root and a tooth top and a tooth root of a non-drive-side half-tooth region extending from the tooth top to the tooth root are each configured by a different ellipse or a circle. A circumferential axis along a circumferential direction of the ellipse or circle configuring the tooth top is longer in the non-drive-side half-tooth region than in the drive-side half-tooth region.
摘要翻译：根据本发明的用于油泵的转子是包括由齿构成的内转子的转子，每个转子具有多个椭圆或圆形，外转子设置在内转子的外侧上，并且具有比所述内转子多一个齿，其中，在所述内转子的齿中，从所述齿顶至齿根延伸的驱动侧半齿区域的齿顶和齿根，以及齿顶和齿从齿顶延伸到齿根的非驱动侧半齿区域的根分别由不同的椭圆或圆形构成。在非驱动侧半齿区域中，构成齿顶的椭圆形圆周方向的圆周方向与驱动侧半齿区域相比较长。

9. 发明申请

US20140154119A1 INTERNAL GEAR PUMP 有权
标题翻译：内齿轮泵
公开(公告)号：US20140154119A1
公开(公告)日：2014-06-05
申请号：US14088220
申请日：2013-11-22
申请人： Yamada Manufacturing Co., Ltd
发明人： Masato Izutsu , Takatoshi Watanabe , Junichi Miyajima
IPC分类号： F04C28/22 , F04C18/10
CPC分类号： F04C28/22 , F04C2/10 , F04C14/10 , F04C14/226 , F04C18/10
摘要： The internal gear pump includes: an inner rotor; an outer rotor that rotates by having predetermined eccentricity to a rotation center of the inner rotor; an outer ring that holds the outer rotor in a freely rotatable state, and is also formed with at least three cam protruded parts; a pump housing having a rotor chamber; protruded-wall surface parts that are formed on an inner periphery side surface of the rotor chamber and are also formed in the same number as that of the cam protruded parts; and operation means for oscillating the outer ring. A diameter center of the holding-inner peripheral part of the outer ring is moved by the operation means along a locus of a circle of which a radius is the eccentricity to the rotation center of the inner rotor.
摘要翻译：内齿轮泵包括：内转子; 外转子，其通过对所述内转子的旋转中心具有预定的偏心旋转; 将外转子保持在可自由旋转的状态的外圈，并且还形成有至少三个凸轮突出部; 具有转子室的泵壳体; 突出壁表面部分形成在转子室的内周侧表面上，并且也形成为与凸轮突出部分相同的数量; 以及用于振荡外圈的操作装置。外圈的保持内周部的直径中心通过操作机构沿着与内转子的旋转中心的偏心的圆的轨迹移动。

10. 发明申请

US20140060477A1 ENGINE LUBRICATION CONTROL SYSTEM 有权
标题翻译：发动机润滑控制系统
公开(公告)号：US20140060477A1
公开(公告)日：2014-03-06
申请号：US14012881
申请日：2013-08-28
申请人： YAMADA MANUFACTURING CO., LTD
发明人： Takatoshi Watanabe , Hidehiko Koyashiki , Junichi Miyajima
IPC分类号： F01M1/16
CPC分类号： F01M1/16
摘要： The present invention provides an engine lubrication control system including an engine, an oil pump which is driven by the engine, an oil circuit which extends downstream from the oil pump, and a plurality of oil branch supply paths which branch from the oil circuit and supply oil to each part of the engine. An electronically-controlled first hydraulic control valve which controls, in a stepwise manner, a discharge pressure of the oil pump relative to a speed of the engine is disposed on the oil circuit, a hydraulically-driven second hydraulic control valve is disposed on at least one of the plurality of oil branch supply paths, and a downstream hydraulic pressure of the second hydraulic control valve is controlled to be lower than a downstream hydraulic pressure of the first hydraulic control valve of the oil circuit at least across a predetermined engine speed range.
摘要翻译：本发明提供一种发动机润滑控制系统，其包括发动机，由发动机驱动的油泵，从油泵下游延伸的油路，以及从油路分支并供给的多个油分支供给路径油到发动机的每个部分。一个电子控制的第一液压控制阀，其以逐步的方式控制油泵相对于发动机的速度的排出压力设置在油路上，液压驱动的第二液压控制阀至少设置在至少在预定的发动机转速范围内，多个油分支供给路径中的一个和第二液压控制阀的下游液压被控制为低于油路的第一液压控制阀的下游液压。

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