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：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：US20200032911A1

公开(公告)日：2020-01-30

申请号：US16046117

申请日：2018-07-26

Applicant: Caterpillar Inc.

Inventor： John Michael Mashak

IPC: F16J15/34

Abstract: A face seal assembly includes a first face seal member having a first upper radial surface defining an upper radial slot with a sealing surface and a second face seal member having a second upper radial surface. A sealing member extends from the second upper radial surface and contacts the sealing surface.