公开(公告)号：US20230043842A1

公开(公告)日：2023-02-09

申请号：US17393685

申请日：2021-08-04

Applicant: Caterpillar Inc.

Inventor： Matthew G. Mickiewicz ,  Stive Ramalho ,  Darren Joseph Hopf ,  Justin Douglas Speichinger ,  Paul Alan Rousseau ,  Brice Mallein

IPC: F04C11/00

Abstract: A hydraulic pump or motor includes a mounting flange that is disposed at the first end of the housing. The mounting flange defines a pair of fastener receiving apertures that are disposed along the X-axis on either side of the shaft. The pair of fastener receiving apertures each define a radius center that are spaced away from each other a X dimension, and a pilot projection extends longitudinally away from the mounting flange, defining a pilot projection diameter. A ratio of the X dimension to the pilot projection diameter ranges from 1.07 to 1.11.

公开(公告)号：US12006924B2

公开(公告)日：2024-06-11

申请号：US17393685

申请日：2021-08-04

Applicant: Caterpillar Inc.

Inventor： Matthew G. Mickiewicz ,  Stive Ramalho ,  Darren Joseph Hopf ,  Justin Douglas Speichinger ,  Paul Alan Rousseau ,  Brice Mallein

IPC: F04B1/2064 ,  F04B53/22 ,  F04C11/00

CPC classification number: F04B1/2064 ,  F04B53/22 ,  F04C11/005 ,  F04C2270/03

Abstract: A hydraulic pump or motor includes a mounting flange that is disposed at the first end of the housing. The mounting flange defines a pair of fastener receiving apertures that are disposed along the X-axis on either side of the shaft. The pair of fastener receiving apertures each define a radius center that are spaced away from each other a X dimension, and a pilot projection extends longitudinally away from the mounting flange, defining a pilot projection diameter. A ratio of the X dimension to the pilot projection diameter ranges from 1.07 to 1.11.

公开(公告)号：US10920396B1

公开(公告)日：2021-02-16

申请号：US16527586

申请日：2019-07-31

Applicant: Caterpillar Inc.

Inventor： Travis N. Richards ,  Ernest E. Stoops ,  Michael L. Repscher ,  Stive Ramalho ,  Wesley T. Payne

IPC: E02F9/22 ,  E02F3/84

Abstract: A hydraulic system for a motor grader is disclosed. The hydraulic system may include a first hydraulic subsystem and a second hydraulic subsystem. A pump may be configured to provide pressurized fluid to the first and second hydraulic subsystems. The hydraulic system may further include a control valve located upstream of the first and second hydraulic subsystems. The control valve may be configured to vary a standby pressure of pressurized fluid for use by the first and second hydraulic subsystems.