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

IPC: F01B3/00 ,  F04B1/20 ,  F04B1/22 ,  F03C1/06

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.

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。