公开(公告)号：US12117003B2

公开(公告)日：2024-10-15

申请号：US17785865

申请日：2020-12-14

Applicant: Cummins Inc.

Inventor： Amol Yashwant Alsundkar ,  Senthil Kumar Selvaraj ,  Nitin Khojare ,  Rashmi Prakash Keskar ,  Jayesh Mahadev Gudekar

IPC: F04C2/10 ,  F04C15/06

CPC classification number: F04C2/101 ,  F04C15/06 ,  F04C2210/203

Abstract: A crescent member is disclosed which is configured to be in constant contact with outer and inner gear teeth to prevent unwanted fluid backflow between the gears. The crescent member may be part of a low-pressure fuel pump system for a diesel engine. In order to reduce heat buildup in the crescent member and gear teeth, the crescent member comprises a gap to allow fluid to flow within the crescent member to absorb and dissipate the heat generated by friction. The crescent member is resilient to maintain constant contact, but flexible enough to reduce wear from friction over time.

公开(公告)号：US20240011481A1

公开(公告)日：2024-01-11

申请号：US17785865

申请日：2020-12-14

Applicant: Cummins Inc.

Inventor： Amol Yashwant Alsundkar ,  Senthil Kumar Selvaraj ,  Nitin Khojare ,  Rashmi Prakash Keskar ,  Jayesh Mahadev Gudekar

IPC: F04C2/10 ,  F04C15/06 ,  F04C18/10

CPC classification number: F04C2/101 ,  F04C2/10 ,  F04C15/06 ,  F04C18/103

Abstract: A crescent member is disclosed which is configured to be in constant contact with outer and inner gear teeth to prevent unwanted fluid backflow between the gears. The crescent member may be part of a low-pressure fuel pump system for a diesel engine. In order to reduce heat buildup in the crescent member and gear teeth, the crescent member comprises a gap to allow fluid to flow within the crescent member to absorb and dissipate the heat generated by friction. The crescent member is resilient to maintain constant contact, but flexible enough to reduce wear from friction over time.

公开(公告)号：US10302141B2

公开(公告)日：2019-05-28

申请号：US15014617

申请日：2016-02-03

Applicant: Cummins Inc.

Inventor： Miguel Antonio Maldonado Andrade ,  Senthil Kumar Selvaraj

IPC: F16D1/08 ,  F16D9/06 ,  F16H57/021

Abstract: A drive coupling for connecting a drive shaft to an output member. The drive coupling includes a non-circular body portion defining a central rotational axis, a tang projecting axially from the body portion on the central rotational axis, and at least one through-hole extending through the body portion adjacent the tang. The tang can shear from the body portion in response to the output member seizing during rotation of the drive shaft. The at least one through-hole provides a flow path for fluid to pressurize a lip seal around the drive shaft.

公开(公告)号：US20170219020A1

公开(公告)日：2017-08-03

申请号：US15014617

申请日：2016-02-03

Applicant: Cummins Inc.

Inventor： Miguel Antonio Maldonado Andrade ,  Senthil Kumar Selvaraj

IPC: F16D9/06 ,  F16D1/02

CPC classification number: F16D9/06 ,  F16D1/02 ,  F16D1/10 ,  F16H1/00

Abstract: There is disclosed herein a drive coupling for connecting a drive shaft to an output member. The drive coupling includes a non-circular body portion defining a central rotational axis, a tang projecting axially from the body portion on the central rotational axis, and at least one through-hole extending through the body portion adjacent the tang. The tang can shear from the body portion in response to the output member seizing during rotation of the drive shaft. The at least one through-hole provides a flow path for fluid to pressurize a lip seal around the drive shaft.