公开(公告)号：US20220228578A1

公开(公告)日：2022-07-21

申请号：US17714477

申请日：2022-04-06

Applicant: KYB Corporation

Inventor： Tetsuya IWANAJI ,  Masaya ABE ,  Takeshi KODAMA

IPC: F04B1/2078 ,  F04B1/324 ,  F04B53/14 ,  F04B53/16

Abstract: A swash-plate type piston pump includes a cylinder block configured to be rotated with rotation of a driving shaft, a plurality of pistons accommodated in a plurality of cylinders provided in the cylinder block, a swash plate configured to reciprocate the piston so that a volume chamber of the cylinder is expanded/contracted with the rotation of the cylinder block, an biasing mechanism configured to bias the swash plate in a direction where a tilting angle is made larger, a control pin configured to drive the swash plate in a direction where the tilting angle is made smaller in accordance with a rise in a load pressure of a pressure chamber, and a discharge channel configured to discharge the load pressure of the pressure chamber.

公开(公告)号：US20210285430A1

公开(公告)日：2021-09-16

申请号：US16316131

申请日：2017-03-31

Applicant: KYB Corporation

Inventor： Tetsuya IWANAJI ,  Masaya ABE ,  Takeshi KODAMA

IPC: F04B1/2078 ,  F04B53/16 ,  F04B53/14

Abstract: A swash-plate type piston pump includes a cylinder block configured to be rotated with rotation of a driving shaft, a plurality of pistons accommodated in a plurality of cylinders provided in the cylinder block, a swash plate configured to reciprocate the piston so that a volume chamber of the cylinder is expanded/contracted with the rotation of the cylinder block, an biasing mechanism configured to bias the swash plate in a direction where a tilting angle is made larger, a control pin configured to drive the swash plate in a direction where the tilting angle is made smaller in accordance with a rise in a load pressure of a pressure chamber, and a discharge channel configured to discharge the load pressure of the pressure chamber.