公开(公告)号：US20140056730A1

公开(公告)日：2014-02-27

申请号：US14072121

申请日：2013-11-05

Applicant: Caterpillar Inc.

Inventor： Wayne Fritz ,  Jeremiah C. Johnson

IPC: F04B1/20

CPC classification number: F04B1/2035 ,  F04B19/025 ,  F04B53/162 ,  Y10T29/49236

Abstract: The present disclosure sets forth an axial piston pump barrel. The axial piston pump barrel is provided with cylinders, antechambers, and fluid flow apertures which are uniquely shaped and dimensioned so as to increase the overall flowability and expulsion rate of a piston pump. By providing curvilinear transition zones and fluid flow apertures, the cylinders can be completely filled and pressurized even at the extremely high pressures and RPMs required by modem machines. Such machines may include front-end loaders, excavators, pipe layers, graders, and the like wherein such pumps can be used to power hydraulic cylinders moving the implements, work arms and other tools associated with such machines.

Abstract translation: 本公开内容提出了一种轴向柱塞泵筒。 轴向柱塞泵筒设置有气缸，前室和流体流动孔，其具有独特的形状和尺寸，以增加活塞泵的整体流动性和排出速率。 通过提供曲线过渡区和流体流通孔，即使在现代机器所需的极高压力和RPM下，气缸也可以完全充满和加压。 这样的机器可以包括前端装载机，挖掘机，管道层，平地机等，其中这种泵可用于为移动工具，工作臂和与这种机器相关联的其它工具的液压缸提供动力。

公开(公告)号：US09151280B2

公开(公告)日：2015-10-06

申请号：US14072121

申请日：2013-11-05

Applicant: Caterpillar Inc.

Inventor： Wayne Fritz ,  Jeremiah C. Johnson

IPC: F04B1/12 ,  F04B1/20 ,  F04B19/02 ,  F04B53/16

CPC classification number: F04B1/2035 ,  F04B19/025 ,  F04B53/162 ,  Y10T29/49236

Abstract: The present disclosure sets forth an axial piston pump barrel. The axial piston pump barrel is provided with cylinders, antechambers, and fluid flow apertures which are uniquely shaped and dimensioned so as to increase the overall flowability and expulsion rate of a piston pump. By providing curvilinear transition zones and fluid flow apertures, the cylinders can be completely filled and pressurized even at the extremely high pressures and RPMs required by modem machines. Such machines may include front-end loaders, excavators, pipe layers, graders, and the like wherein such pumps can be used to power hydraulic cylinders moving the implements, work arms and other tools associated with such machines.

Abstract translation: 本公开内容提出了一种轴向柱塞泵筒。 轴向柱塞泵筒设置有气缸，前室和流体流动孔，其具有独特的形状和尺寸，以增加活塞泵的整体流动性和排出速率。 通过提供曲线过渡区和流体流通孔，即使在现代机器所需的极高压力和RPM下，气缸也可以完全充满和加压。 这样的机器可以包括前端装载机，挖掘机，管道层，平地机等，其中这种泵可用于为移动工具，工作臂和与这种机器相关联的其它工具的液压缸提供动力。