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公开(公告)号：US20140286798A1
公开(公告)日：2014-09-25
申请号：US14349731
申请日：2013-01-21
Applicant: KAYABA INDUSTRY CO., LTD.
Inventor： Hiroki Kato , Susumu Narita , Tetsuya Iwanaji , Takeru Hosokawa
CPC classification number: F04B27/1804 , F04B1/26 , F04B2027/1822 , F16K31/06
Abstract: A servo regulator that causes a servo piston to move on the basis of working fluid pressure in two pressure chambers includes: a sleeve that is inserted into an insertion hole formed in a case and has a supply port capable of supplying a working fluid from a fluid pressure source to one of the pressure chambers; a spool valve disposed in the sleeve so as to be biased by a biasing member; and a solenoid that is attached to the case in order to drive the spool valve via a plunger. The sleeve includes a pressure receiving portion on which a fluid pressure of the working fluid from the fluid pressure source is exerted, and is pressed against an end surface of the solenoid by a biasing force acting on the pressure receiving portion.
Abstract translation: 基于两个压力室中的工作流体压力使伺服活塞移动的伺服调节器包括：插入到形成在壳体中的插入孔中并具有能够从流体供应工作流体的供给口的套筒 一个压力室的压力源; 滑阀，其设置在所述套筒中以被偏置构件偏置; 以及螺线管，其附接到壳体以便经由柱塞驱动滑阀。 套筒包括压力接收部分，在该压力接收部分施加来自流体压力源的工作流体的流体压力，并且通过作用在压力接收部分上的偏压力而被压靠在螺线管的端面上。
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公开(公告)号：US20140328700A1
公开(公告)日：2014-11-06
申请号：US14360335
申请日：2012-11-21
Applicant: KAYABA INDUSTRY CO., LTD.
Inventor： Tetsuya Iwanaji
IPC: F04B1/29
CPC classification number: F04B1/295 , F04B1/146 , F04B1/2078 , F04B1/324 , F04B23/10 , F04B27/086 , F04B27/0873 , F04B27/22 , F04B39/12 , F04B49/002 , F04B49/08 , F04B49/12
Abstract: A swash plate type piston pump includes a plurality of pistons, a cylinder block including a plurality of cylinders for housing the pistons, a swash plate for reciprocating the pistons to expand and contract volume chambers of the cylinders with the rotation of the cylinder block, a biasing mechanism for biasing the swash plate in a direction to increase a tilting angle, a first control pin for driving the swash plate in a direction to reduce the tilting angle according to a first load pressure, and a second control pin for driving the swash plate in a direction to reduce the tilting angle according to a second load pressure. The first and second control pins are connected in series.
Abstract translation: 旋转斜盘式活塞泵包括多个活塞，包括用于容纳活塞的多个气缸的气缸体，用于使活塞往复运动以使气缸体的旋转的容积室膨胀和收缩的斜盘， 用于沿增加倾斜角度的方向偏置斜盘的偏压机构，用于沿着第一负载压力沿着减小倾斜角度的方向驱动斜盘的第一控制销和用于驱动斜盘的第二控制销 沿着第二负载压力减小倾斜角度的方向。 第一和第二控制引脚串联连接。
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Patent Agency Ranking
公开(公告)号：US09726158B2
公开(公告)日：2017-08-08
申请号：US14360335
申请日：2012-11-21
Applicant: KAYABA INDUSTRY CO., LTD.
Inventor： Tetsuya Iwanaji
IPC: F04B1/29 , F04B1/14 , F04B1/32 , F04B1/20 , F04B23/10 , F04B39/12 , F04B27/08 , F04B27/22 , F04B49/00 , F04B49/12 , F04B49/08
CPC classification number: F04B1/295 , F04B1/146 , F04B1/2078 , F04B1/324 , F04B23/10 , F04B27/086 , F04B27/0873 , F04B27/22 , F04B39/12 , F04B49/002 , F04B49/08 , F04B49/12
Abstract: A swash plate type piston pump includes a plurality of pistons, a cylinder block including a plurality of cylinders for housing the pistons, a swash plate for reciprocating the pistons to expand and contract volume chambers of the cylinders with the rotation of the cylinder block, a biasing mechanism for biasing the swash plate in a direction to increase a tilting angle, a first control pin for driving the swash plate in a direction to reduce the tilting angle according to a first load pressure, and a second control pin for driving the swash plate in a direction to reduce the tilting angle according to a second load pressure. The first and second control pins are connected in series.
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公开(公告)号：US09644480B2
公开(公告)日：2017-05-09
申请号：US14374524
申请日：2013-07-18
Applicant: KAYABA INDUSTRY CO., LTD.
Inventor： Tetsuya Iwanaji , Atsushi Aoyama
CPC classification number: F01B3/007 , F01B3/0055 , F01B3/0091 , F03C1/0647 , F04B1/2021 , F04B1/2035 , F04B1/22
Abstract: A fluid pressure rotary machine includes a cylinder block that is fixed to a rotary shaft and includes a plurality of cylinder bores, a piston disposed to be free to slide in each cylinder bore such that a volume chamber is defined thereby, a swash plate that causes the piston to reciprocate such that the volume chamber expands and contracts, and a valve plate that slides against the cylinder block and includes an intake port and a discharge port communicating with the volume chamber. The valve plate includes a sliding surface formed to project in a spherical shape against the cylinder block. The cylinder block includes a sliding surface formed as an indentation corresponding to the shape of the sliding surface of the valve plate. A minute gap is formed between the sliding surface of the valve plate and the sliding surface of the cylinder block in an outer edge position.
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公开(公告)号：US09464629B2
公开(公告)日：2016-10-11
申请号：US14349731
申请日：2013-01-21
Applicant: KAYABA INDUSTRY CO., LTD.
Inventor： Hiroki Kato , Susumu Narita , Tetsuya Iwanaji , Takeru Hosokawa
CPC classification number: F04B27/1804 , F04B1/26 , F04B2027/1822 , F16K31/06
Abstract: A servo regulator that causes a servo piston to move on the basis of working fluid pressure in two pressure chambers includes: a sleeve that is inserted into an insertion hole formed in a case and has a supply port capable of supplying a working fluid from a fluid pressure source to one of the pressure chambers; a spool valve disposed in the sleeve so as to be biased by a biasing member; and a solenoid that is attached to the case in order to drive the spool valve via a plunger. The sleeve includes a pressure receiving portion on which a fluid pressure of the working fluid from the fluid pressure source is exerted, and is pressed against an end surface of the solenoid by a biasing force acting on the pressure receiving portion.
Abstract translation: 基于两个压力室中的工作流体压力使伺服活塞移动的伺服调节器包括：插入到形成在壳体中的插入孔中并具有能够从流体供应工作流体的供给口的套筒 一个压力室的压力源; 滑阀，其设置在所述套筒中以被偏置构件偏置; 以及螺线管，其附接到壳体以便经由柱塞驱动滑阀。 套筒包括压力接收部分，在该压力接收部分施加来自流体压力源的工作流体的流体压力，并且通过作用在压力接收部分上的偏压力而被压靠在螺线管的端面上。
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公开(公告)号：US10145368B2
公开(公告)日：2018-12-04
申请号：US14654850
申请日：2014-01-07
Applicant: KAYABA INDUSTRY CO., LTD.
Inventor： Tetsuya Iwanaji
Abstract: A pump volume control apparatus includes: a tilting piston; a pump volume switching valve configured to adjust a tilt driving pressure by a movement of a spool; a flow rate control spring configured to bias the spool in accordance with a tilt angle; a horsepower control piston configured to move in accordance with a pump discharge pressure; and a horsepower control spring configured to bias the horsepower control piston in accordance with the tilt angle. The tilt driving pressure is adjusted by means of the movement of the spool in accordance with a force acting on the spool in response to a flow rate controlling signal pressure in a flow rate controlled state, and is adjusted by means of the movement of the spool in accordance with a force acting on the horsepower control piston in response to the pump discharge pressure in a horsepower controlled state.
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公开(公告)号：US20140360351A1
公开(公告)日：2014-12-11
申请号：US14374524
申请日：2013-07-18
Applicant: KAYABA INDUSTRY CO., LTD.
Inventor： Tetsuya Iwanaji , Atsushi Aoyama
IPC: F01B3/00
CPC classification number: F01B3/007 , F01B3/0055 , F01B3/0091 , F03C1/0647 , F04B1/2021 , F04B1/2035 , F04B1/22
Abstract: A fluid pressure rotary machine includes a cylinder block that is fixed to a rotary shaft and includes a plurality of cylinder bores, a piston disposed to be free to slide in each cylinder bore such that a volume chamber is defined thereby, a swash plate that causes the piston to reciprocate such that the volume chamber expands and contracts, and a valve plate that slides against the cylinder block and includes an intake port and a discharge port communicating with the volume chamber. The valve plate includes a sliding surface formed to project in a spherical shape against the cylinder block. The cylinder block includes a sliding surface formed as an indentation corresponding to the shape of the sliding surface of the valve plate. A minute gap is formed between the sliding surface of the valve plate and the sliding surface of the cylinder block in an outer edge position.
Abstract translation: 一种流体压力旋转机械包括：一个固定在旋转轴上并包括多个气缸孔的气缸体，一个设置成可在每个气缸孔内自由滑动的活塞，从而定义一个容积室;一个斜盘， 活塞往复运动，使得容积室膨胀和收缩;以及阀板，其抵靠气缸体滑动并且包括进气口和与容积室连通的排出口。 阀板包括形成为相对于气缸体突出成球形的滑动表面。 气缸体包括形成为与阀板的滑动面的形状对应的凹部的滑动面。 在阀板的滑动表面和气缸体的滑动表面之间在外边缘位置形成微小的间隙。
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