公开(公告)号：US12000485B1

公开(公告)日：2024-06-04

申请号：US18104331

申请日：2023-02-01

Applicant: Caterpillar Inc.

Inventor： Elmer S. Zanoria ,  Keith Harmeyer ,  John Michael Mashak ,  Daniel Joshua Smith

IPC: F16J15/32 ,  F16J15/3228

CPC classification number: F16J15/3228

Abstract: A dynamically vented crankshaft seal and systems and methods thereof can include a seal assembly comprised of a wear sleeve; a main seal; a dust seal; and a plurality of vents circumferentially spaced from each other. Each of the vents can be formed by at least a channel. The channel may be formed in or by the wear sleeve, which can be a primary wear sleeve or a secondary wear sleeve. Further, each of the vents can extend from a first side of the seal assembly to between the main seal and the dust seal. An angle between a channel length axis of the channel and a trajectory of circumferential motion can be ninety degrees, acute, or obtuse for each of the channels.

公开(公告)号：US20200095752A1

公开(公告)日：2020-03-26

申请号：US16142469

申请日：2018-09-26

Applicant: Caterpillar Inc.

Inventor： Patrick Simon Campomanes ,  Jonathan Stuart Borden ,  Brandon H. McCaffrey ,  Pradeep Chapagain ,  Daniel Joshua Smith

IPC: E02F9/28

Abstract: A shield subassembly includes a support member, a resilient member, and a shield member defining an annular perimeter that surrounds the resilient member.

公开(公告)号：US09897158B2

公开(公告)日：2018-02-20

申请号：US15197305

申请日：2016-06-29

Applicant: Caterpillar Inc.

Inventor： Brett D. Ellen ,  Daniel Joshua Smith ,  Wen Zhong ,  Hong Lian ,  Matt Schwarzendruber ,  Ross Paul Wietharn ,  James D. Neirynck

IPC: F16F7/00 ,  F16F1/36 ,  F16M13/02 ,  B62D33/06 ,  E02F9/16

CPC classification number: F16F1/36 ,  B62D33/0604 ,  E02F9/166 ,  F16F1/3732 ,  F16M13/02

Abstract: An isolation mount assembly comprises a resilient member defining a central aperture that defines a load axis and an annular depression about the load axis, and an adapter plate including an outer mechanical attachment structure that defines a first thickness and an inner attachment structure that is closer to the load axis than the outer attachment structure along a direction that is perpendicular to the load axis and that defines a second thickness. The inner attachment structure is disposed in the annular depression and the second thickness is at least twice the first thickness.

公开(公告)号：US20180003254A1

公开(公告)日：2018-01-04

申请号：US15197305

申请日：2016-06-29

Applicant: Caterpillar Inc.

Inventor： Brett D. Ellen ,  Daniel Joshua Smith ,  Wen Zhong ,  Hong Lian ,  Matt Schwarzendruber ,  Ross Paul Wietharn ,  James D. Neirynck

IPC: F16F1/36 ,  B62D33/06 ,  E02F9/16 ,  F16M13/02

CPC classification number: F16F1/36 ,  B62D33/0604 ,  E02F9/166 ,  F16F1/3732 ,  F16M13/02

Abstract: An isolation mount assembly comprises a resilient member defining a central aperture that defines a load axis and an annular depression about the load axis, and an adapter plate including an outer mechanical attachment structure that defines a first thickness and an inner attachment structure that is closer to the load axis than the outer attachment structure along a direction that is perpendicular to the load axis and that defines a second thickness. The inner attachment structure is disposed in the annular depression and the second thickness is at least twice the first thickness.

公开(公告)号：US11796063B2

公开(公告)日：2023-10-24

申请号：US17332797

申请日：2021-05-27

Applicant: Caterpillar Inc.

Inventor： Keith Joseph Harmeyer ,  Elmer S. Zanoria ,  Daniel Joshua Smith

IPC: F16J15/32 ,  F16J15/3228 ,  F16J15/3248 ,  F16J15/34

CPC classification number: F16J15/3228 ,  F16J15/3248 ,  F16J15/348

Abstract: A seal assembly for a rotatable shaft assembly includes a seal housing and each of a main seal and a dust seal extending circumferentially around a seal housing center axis. The dust seal includes a radially inward dust seal lip, and is formed by a sealing layer having a plurality of ventilation openings formed therein, and a debris-blocking filter layer attached to the sealing layer and positioned across the ventilation openings. The main seal and dust seal assist in maintaining lubricating oil within a seal cavity. The dust seal prevents entry of debris whilst ventilating the seal cavity to limit carbonization of oil on seal assembly components. In an implementation the seal assembly is part of a rotatable crankshaft assembly.

公开(公告)号：US12031631B1

公开(公告)日：2024-07-09

申请号：US18104331

申请日：2023-02-01

Applicant: Caterpillar Inc.

Inventor： Elmer S. Zanoria ,  Keith Harmeyer ,  John Michael Mashak ,  Daniel Joshua Smith

IPC: F16J15/32 ,  F16J15/3228

CPC classification number: F16J15/3228

Abstract: A dynamically vented crankshaft seal and systems and methods thereof can include a seal assembly comprised of a wear sleeve; a main seal; a dust seal; and a plurality of vents circumferentially spaced from each other. Each of the vents can be formed by at least a channel. The channel may be formed in or by the wear sleeve, which can be a primary wear sleeve or a secondary wear sleeve. Further, each of the vents can extend from a first side of the seal assembly to between the main seal and the dust seal. An angle between a channel length axis of the channel and a trajectory of circumferential motion can be ninety degrees, acute, or obtuse for each of the channels.

公开(公告)号：US11852240B2

公开(公告)日：2023-12-26

申请号：US17652342

申请日：2022-02-24

Applicant: Caterpillar Inc.

Inventor： Elmer S Zanoria ,  Hong Lian ,  Keith Harmeyer ,  Daniel Joshua Smith

IPC: F16J15/32 ,  F16J15/3244 ,  F16J15/3256 ,  F16J15/322 ,  F16J15/3224

CPC classification number: F16J15/3244 ,  F16J15/322 ,  F16J15/3224 ,  F16J15/3256

Abstract: A rotational seal assembly is associated with a rotating component. The rotational seal includes an outer casing, an inner casing, a rotational seal connected to the outer casing and the inner casing, and a followability enhancer. A section of the rotational seal includes a heel portion and a toe portion. The rotational seal is configured to contact, via a first surface of the section of the rotational seal and during operation of the rotating component, the rotating component. The followability enhancer is configured to contact, during the operation of the rotating component, a first region of a second surface of the section of the rotational seal that is associated with the toe portion. The followability enhancer is configured to not contact, during the operation of the rotating component, a second region of the second surface of the section of the rotational seal that is associated with the heel portion.

公开(公告)号：US20220381347A1

公开(公告)日：2022-12-01

申请号：US17332797

申请日：2021-05-27

Applicant: Caterpillar Inc.

Inventor： Keith Joseph Harmeyer ,  Elmer S. Zanoria ,  Daniel Joshua Smith

IPC: F16J15/3228 ,  F16J15/34 ,  F16J15/3248

Abstract: A seal assembly for a rotatable shaft assembly includes a seal housing and each of a main seal and a dust seal extending circumferentially around a seal housing center axis. The dust seal includes a radially inward dust seal lip, and is formed by a sealing layer having a plurality of ventilation openings formed therein, and a debris-blocking filter layer attached to the sealing layer and positioned across the ventilation openings. The main seal and dust seal assist in maintaining lubricating oil within a seal cavity. The dust seal prevents entry of debris whilst ventilating the seal cavity to limit carbonization of oil on seal assembly components. In an implementation the seal assembly is part of a rotatable crankshaft assembly.