公开(公告)号：US20210102358A1

公开(公告)日：2021-04-08

申请号：US16591034

申请日：2019-10-02

Applicant: Caterpillar Inc.

Inventor： Richard Lane Fulcher ,  Timothy A. Evans ,  Travis N. Richards ,  Yongtao Li

IPC: E02F9/22 ,  E02F3/76

Abstract: A motor grader having ride control for dampening machine bounce using a DCM assembly rotatably coupled to and suspended from a frame of the motor grader is disclosed. Each lift cylinder for the DCM may have an associated ride control circuit with an accumulator, a ride control conduit fluidly connected to a carry end of the lift cylinder and having a flow restriction element, and a ride control accumulator valve fluidly connected to the accumulator and the ride control conduit and operable to either block or allow fluid communication between the carry end and the accumulator through the flow restriction element. Each rid control circuit may also include a head end valve fluidly connected to between the head end of the lift cylinder and a low pressure fluid reservoir and operable to block or allow fluid communication between the head end and the low pressure fluid reservoir.

公开(公告)号：US11619026B2

公开(公告)日：2023-04-04

申请号：US16591034

申请日：2019-10-02

Applicant: Caterpillar Inc.

Inventor： Richard Lane Fulcher ,  Timothy A. Evans ,  Travis N. Richards ,  Yongtao Li

IPC: E02F9/22 ,  E02F3/76

Abstract: A motor grader having ride control for dampening machine bounce using a DCM assembly rotatably coupled to and suspended from a frame of the motor grader is disclosed. Each lift cylinder for the DCM may have an associated ride control circuit with an accumulator, a ride control conduit fluidly connected to a carry end of the lift cylinder and having a flow restriction element, and a ride control accumulator valve fluidly connected to the accumulator and the ride control conduit and operable to either block or allow fluid communication between the carry end and the accumulator through the flow restriction element. Each rid control circuit may also include a head end valve fluidly connected to between the head end of the lift cylinder and a low pressure fluid reservoir and operable to block or allow fluid communication between the head end and the low pressure fluid reservoir.