公开(公告)号：US09982669B2

公开(公告)日：2018-05-29

申请号：US14534660

申请日：2014-11-06

Applicant: Caterpillar Inc.

Inventor： Paul Desiderio ,  Daniel Puckett ,  Steven Grant ,  Joshua Steffen

IPC: F04B49/00 ,  F04B23/02 ,  F04B49/20 ,  F04B19/22 ,  F04B53/14 ,  F04B53/16 ,  F02D19/06 ,  F02D19/08

CPC classification number: F04B49/20 ,  F02D19/0605 ,  F02D19/0613 ,  F02D19/08 ,  F04B19/22 ,  F04B23/02 ,  F04B53/14 ,  F04B53/16 ,  Y02T10/36

Abstract: A pump system includes a pump and a storage volume in fluid communication with a discharge port of the pump. The pump includes a housing defining a pump bore and a pump piston disposed in sliding engagement with the pump bore, the pump piston being in selective fluid communication with the discharge port of the pump. A method for operating the pump system includes determining a time to drain an amount of a first fluid from the storage volume, and retracting the pump piston within the pump bore at a target retraction rate based at least partly on the time to drain the first fluid from the storage volume.

公开(公告)号：US20160138583A1

公开(公告)日：2016-05-19

申请号：US14534660

申请日：2014-11-06

Applicant: Caterpillar Inc.

Inventor： Paul Desiderio ,  Daniel Puckett ,  Steven Grant ,  Joshua Steffen

IPC: F04B49/20 ,  F04B23/02 ,  G05B15/02 ,  F04B53/16 ,  F15B1/26 ,  F15B11/08 ,  F04B19/22 ,  F04B53/14

CPC classification number: F04B49/20 ,  F02D19/0605 ,  F02D19/0613 ,  F02D19/08 ,  F04B19/22 ,  F04B23/02 ,  F04B53/14 ,  F04B53/16 ,  Y02T10/36

Abstract: A pump system includes a pump and a storage volume in fluid communication with a discharge port of the pump. The pump includes a housing defining a pump bore and a pump piston disposed in sliding engagement with the pump bore, the pump piston being in selective fluid communication with the discharge port of the pump. A method for operating the pump system includes determining a time to drain an amount of a first fluid from the storage volume, and retracting the pump piston within the pump bore at a target retraction rate based at least partly on the time to drain the first fluid from the storage volume.

Abstract translation: 泵系统包括泵和与泵的排出口流体连通的存储容积。 泵包括限定泵孔的壳体和与泵孔滑动接合的泵活塞，泵活塞与泵的排出口选择性地流体连通。 用于操作泵系统的方法包括确定从存储容积排出一定量的第一流体的时间，以及至少部分地基于时间排出第一流体的时间以目标回缩速率缩回泵孔内的泵活塞 从存储卷。