公开(公告)号：US09835123B2

公开(公告)日：2017-12-05

申请号：US14993620

申请日：2016-01-12

Applicant: ROLLER BEARING COMPANY OF AMERICA, INC.

Inventor： Kelvin M. Smith

IPC: F16H53/06 ,  F02M59/04 ,  F01L1/16 ,  F02M59/10 ,  F02M37/06 ,  F04B1/04 ,  F02M59/44

CPC classification number: F02M59/102 ,  F01L1/16 ,  F02M37/06 ,  F02M59/44 ,  F04B1/0417 ,  F04B1/0426 ,  F16H53/06

Abstract: A roller for a mechanical fuel pump assembly includes an elongate body extending from a first axial end to a second axial end of the elongate body over an overall length of the elongate body. The elongate body defines an effective length that is less than the overall length. The elongate body defines a uniform circular cross section over a second length of the elongate body. The second length is 75 to 90 percent of the effective length and the second length extends between a first plane and a second plane. A first area of reduced cross section extends axially outward from the first plane to a third plane located axially inward of the first axial end; and a second area of reduced cross section extends axially outward from the second plane to a fourth plane located axially inward of the second axial end.

公开(公告)号：US20220333505A1

公开(公告)日：2022-10-20

申请号：US17854088

申请日：2022-06-30

Applicant: Roller Bearing Company of America, Inc.

Inventor： Kelvin M. Smith ,  Eric Smooke

IPC: F01L1/14 ,  F16C33/34 ,  F01L1/18 ,  F01L1/24 ,  F16C13/00 ,  F01L1/047 ,  F16C19/26

Abstract: A roller hydraulic valve lifter includes a body having a longitudinal central axis and an interior area defined by an inside surface which has a pair of flat surfaces opposite one another and connected by a pair of walls. A first bore, essentially perpendicular to the longitudinal axis, extends through the flat surfaces. A bearing is disposed partially in the interior area. The bearing includes an outer ring having substantially cylindrical exterior and interior bearing surfaces. A shaft extends through the first bore and the outer ring and between the pair of flat surfaces. A plurality of needle rollers is disposed between and rollingly engage the shaft and the cylindrical inner bearing surface. The shaft and the plurality of needle rollers are manufactured from an AISI 52100 alloy steel that is carbo-nitrided. The shaft and the plurality of needle rollers have a surface hardness of a minimum of HRc 65.

公开(公告)号：US20190101029A1

公开(公告)日：2019-04-04

申请号：US16142157

申请日：2018-09-26

Applicant: Roller Bearing Company of America, Inc.

Inventor： Kelvin M. Smith ,  Eric Smooke

IPC: F01L1/047 ,  F16C19/26 ,  F16C33/34

Abstract: A roller hydraulic valve lifter includes a body having a longitudinal central axis and an interior area defined by an inside surface which has a pair of flat surfaces opposite one another and connected by a pair of walls. A first bore, essentially perpendicular to the longitudinal axis, extends through the flat surfaces. A bearing is disposed partially in the interior area. The bearing includes an outer ring having substantially cylindrical exterior and interior bearing surfaces. A shaft extends through the first bore and the outer ring and between the pair of flat surfaces. A plurality of needle rollers is disposed between and rollingly engage the shaft and the cylindrical inner bearing surface. The shaft and the plurality of needle rollers are manufactured from an AISI 52100 alloy steel that is carbo-nitrided. The shaft and the plurality of needle rollers have a surface hardness of a minimum of HRc 65.

公开(公告)号：US20160201630A1

公开(公告)日：2016-07-14

申请号：US14993620

申请日：2016-01-12

Applicant: ROLLER BEARING COMPANY OF AMERICA, INC.

Inventor： Kelvin M. Smith

IPC: F02M59/10 ,  F02M37/06

CPC classification number: F02M59/102 ,  F01L1/16 ,  F02M37/06 ,  F02M59/44 ,  F04B1/0417 ,  F04B1/0426 ,  F16H53/06

Abstract: A roller for a mechanical fuel pump assembly includes an elongate body extending from a first axial end to a second axial end of the elongate body over an overall length of the elongate body. The elongate body defines an effective length that is less than the overall length. The elongate body defines a uniform circular cross section over a second length of the elongate body. The second length is 75 to 90 percent of the effective length and the second length extends between a first plane and a second plane. A first area of reduced cross section extends axially outward from the first plane to a third plane located axially inward of the first axial end; and a second area of reduced cross section extends axially outward from the second plane to a fourth plane located axially inward of the second axial end.

Abstract translation: 用于机械燃料泵组件的辊子包括细长体，细长体在细长体的整个长度上从细长体的第一轴向端延伸到第二轴向端。 细长主体限定小于总长度的有效长度。 细长主体在细长主体的第二长度上限定均匀的圆形横截面。 第二长度为有效长度的75％至90％，第二长度在第一平面和第二平面之间延伸。 减小截面的第一区域从第一平面轴向向外延伸到位于第一轴向端轴向内部的第三平面; 并且减小横截面的第二区域从第二平面轴向向外延伸到位于第二轴向端轴向内部的第四平面。