公开(公告)号：US20230071137A1

公开(公告)日：2023-03-09

申请号：US17948544

申请日：2022-09-20

Applicant: Clark Equipment Company

Inventor： Charles Young ,  Marty Carpenter ,  Scott Becker ,  Douglas Kallas ,  Matthew Kaldor ,  Eric Zabel

IPC: E02F9/22 ,  E02F9/20 ,  F15B11/05

Abstract: A hydraulic work system can include a continuously variable displacement hydraulic pump that is powered by an engine and is in communication with a hydraulic actuator. A run-time displacement of the hydraulic pump for movement of the hydraulic actuator can be controlled based on a speed of the engine.

公开(公告)号：US20210087792A1

公开(公告)日：2021-03-25

申请号：US17026387

申请日：2020-09-21

Applicant: Clark Equipment Company

Inventor： Charles Young ,  Marty Carpenter ,  Scott Becker ,  Douglas Kallas ,  Matthew Kaldor ,  Eric Zabel ,  Boston Zachmann

IPC: E02F9/22

Abstract: A power machine can include a hydraulic drive system that includes an infinitely variable hydraulic drive motor. A run-time displacement of the hydraulic motor can be adjusted based on commanded travel speed or based on a output torque. In some case, the run-time displacement can be selected from one of a plurality of displacement ranges, such as a high range and a low range.

公开(公告)号：US11834810B2

公开(公告)日：2023-12-05

申请号：US17948544

申请日：2022-09-20

Applicant: Clark Equipment Company

Inventor： Charles Young ,  Marty Carpenter ,  Scott Becker ,  Douglas Kallas ,  Matthew Kaldor ,  Eric Zabel

IPC: E02F9/22 ,  F15B11/05 ,  E02F9/20

CPC classification number: E02F9/2203 ,  E02F9/2029 ,  E02F9/2232 ,  E02F9/2235 ,  E02F9/2296 ,  F15B11/055

Abstract: A hydraulic work system can include a continuously variable displacement hydraulic pump that is powered by an engine and is in communication with a hydraulic actuator. A run-time displacement of the hydraulic pump for movement of the hydraulic actuator can be controlled based on a speed of the engine.

公开(公告)号：US20210087793A1

公开(公告)日：2021-03-25

申请号：US17030836

申请日：2020-09-24

Applicant: Clark Equipment Company

Inventor： Charles Young ,  Marty Carpenter ,  Scott Becker ,  Douglas Kallas ,  Matthew Kaldor ,  Eric Zabel

IPC: E02F9/22 ,  E02F9/20

Abstract: A hydraulic work system can include a continuously variable displacement hydraulic pump that is powered by an engine and is in communication with a hydraulic actuator. A run-time displacement of the hydraulic pump for movement of the hydraulic actuator can be controlled based on a speed of the engine.

公开(公告)号：US11447930B2

公开(公告)日：2022-09-20

申请号：US17030836

申请日：2020-09-24

Applicant: Clark Equipment Company

Inventor： Charles Young ,  Marty Carpenter ,  Scott Becker ,  Douglas Kallas ,  Matthew Kaldor ,  Eric Zabel

IPC: E02F9/22 ,  E02F9/20 ,  F15B11/05

Abstract: A hydraulic work system can include a continuously variable displacement hydraulic pump that is powered by an engine and is in communication with a hydraulic actuator. A run-time displacement of the hydraulic pump for movement of the hydraulic actuator can be controlled based on a speed of the engine.