公开(公告)号：US10890174B2

公开(公告)日：2021-01-12

申请号：US16217159

申请日：2018-12-12

Applicant: Danfoss Power Solutions Inc.

Inventor： Joshua Cronbaugh

IPC: F04B49/08 ,  F04B49/24 ,  F04B49/035 ,  F04B49/02

Abstract: A hydrostatic system that provides different volumetric efficiency at different states and includes a pump with a discharge and supply line. Connected between the discharge and supply line is a valve. The valve is adapted to move to a position having a cross port orifice when the pump is in a neutral state and a position where the ports are blocked when the pump is in an operation state.

公开(公告)号：US20190323490A1

公开(公告)日：2019-10-24

申请号：US15961306

申请日：2018-04-24

Applicant: Danfoss Power Solutions Inc.

Inventor： Joshua Cronbaugh

IPC: F04B23/04 ,  F04B1/12

Abstract: The present invention relates to a pumping assembly that has a first pump and a second pump connected to an end cap, which the connection is in a back-to-back configuration in some arrangements. The end cap, which can be centrally located, has a core that is in liquid communication with a first and second port on the end cap by way of a conduit. The conduit combines the flow of the first pump and the second pump at the core, which then exits the assembly by way of at least one of the ports.