公开(公告)号：US20240191730A1

公开(公告)日：2024-06-13

申请号：US18587050

申请日：2024-02-26

Applicant: Caterpillar Inc.

Inventor： Justin Douglas Speichinger ,  Ramalho Stive ,  Darren Joseph Hopf ,  Aurelien Herve Bernard ,  Paul Alan Rousseau

IPC: F15B15/08 ,  F04D25/04

CPC classification number: F15B15/08 ,  F04D25/04

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 bolt receiving slots that are disposed along the X-axis on either side of the shaft. The pair of bolt receiving slots 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 1.1 to 1.5.

公开(公告)号：US20220252083A1

公开(公告)日：2022-08-11

申请号：US17171473

申请日：2021-02-09

Applicant: Caterpillar Inc.

Inventor： Justin Douglas Speichinger ,  Ramalho Stive ,  Darren Joseph Hopf ,  Aurelien Herve Bernard ,  Paul Alan Rousseau

IPC: F04D29/60

Abstract: A female mounting member is configured to mate with a hydraulic pump or fan. The member includes a body that defines a projection receiving cavity defining a cavity diameter, and a first threaded hole defining a first threaded hole diameter. A ratio of the cavity diameter to the first threaded hole diameter ranges from 8.0 to 8.15.

公开(公告)号：US12209598B2

公开(公告)日：2025-01-28

申请号：US18587050

申请日：2024-02-26

Applicant: Caterpillar Inc.

Inventor： Justin Douglas Speichinger ,  Ramalho Stive ,  Darren Joseph Hopf ,  Aurelien Herve Bernard ,  Paul Alan Rousseau

IPC: F15B15/08 ,  F04D25/04

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 bolt receiving slots that are disposed along the X-axis on either side of the shaft. The pair of bolt receiving slots 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 1.1 to 1.5.

公开(公告)号：US11953032B2

公开(公告)日：2024-04-09

申请号：US17171416

申请日：2021-02-09

Applicant: Caterpillar Inc.

Inventor： Justin Douglas Speichinger ,  Ramalho Stive ,  Darren Joseph Hopf ,  Aurelien Herve Bernard ,  Paul Alan Rousseau

IPC: F15B15/08 ,  F04D25/04

CPC classification number: F15B15/08 ,  F04D25/04

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 bolt receiving slots that are disposed along the X-axis on either side of the shaft. The pair of bolt receiving slots 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 1.1 to 1.5.

公开(公告)号：US20220252087A1

公开(公告)日：2022-08-11

申请号：US17171416

申请日：2021-02-09

Applicant: Caterpillar Inc.

Inventor： Justin Douglas Speichinger ,  Ramalho Stive ,  Darren Joseph Hopf ,  Aurelien Herve Bernard ,  Paul Alan Rousseau

IPC: F15B15/08 ,  F04D25/04 ,  F16B5/02

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 bolt receiving slots that are disposed along the X-axis on either side of the shaft. The pair of bolt receiving slots 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 1.1 to 1.5.

公开(公告)号：US10889965B2

公开(公告)日：2021-01-12

申请号：US16436959

申请日：2019-06-11

Applicant: Caterpillar Inc.

Inventor： Travis Neale Richards ,  Ernest Everett Stoops ,  Michael Lemoyne Repscher ,  Matthew David Roley ,  Ramalho Stive ,  Michael Robert Kunde ,  Dwanz Mwalimu Mwasi ,  Charles Eric Nail ,  Bart Jerome Bradford

IPC: E02F9/22 ,  B62D12/00 ,  E02F9/08

Abstract: A hydraulic circuit for a pair of cylinders of an articulation system includes a pump, a reservoir, a directional control valve (DCV), a pair of actuator valves (AVs) and an articulation charge circuit (ACC). The DCV is fluidly coupled to the pump, the reservoir and the pair of cylinders via a supply line, a fluid return line and a pair of cylinder supply lines (CSLs) respectively. Each CSL has a load check valve (LCV) therein. The AVs are fluidly coupled with the DCV and the pump via a pilot supply line (PSL) for actuating movement of the DCV. The ACC, associated with the PSL and each cylinder supply line downstream of the associated LCV, charges a corresponding CSL with fluid from the PSL for increasing a pressure in the corresponding CSL when the pressure in the corresponding CSL falls below the pressure of fluid associated with the PSL.