公开(公告)号：US10934970B2

公开(公告)日：2021-03-02

申请号：US16126298

申请日：2018-09-10

Applicant: Caterpillar Inc.

Inventor： John M. Mashak ,  Keith Harmeyer

IPC: F16J15/3232 ,  F02F11/00

Abstract: A sealing device may comprise: a flange that extends perpendicularly relative to a central axis of first portion; an inner cylindrical portion having an engaging surface, and a protruding portion extending between the flange and the inner cylindrical portion; a rigid body component; and an elastic component having a main oil lip and an excluder lip, wherein the main oil lip is proximate to or in contact with the flange at a first location, and wherein a the excluder lip contacts the inner cylindrical portion; wherein a gap is defined by surfaces of the first portion and the elastic component between the first location and the second location, and wherein, when the sealing device is installed in a bore so that the engaging surface is fixedly connected to the shaft and a machine is operated so that the shaft rotates, the volume of the gap changes by less than 10%.

公开(公告)号：US11313470B2

公开(公告)日：2022-04-26

申请号：US16733101

申请日：2020-01-02

Applicant: Caterpillar Inc.

Inventor： John M. Mashak

IPC: F16J15/3248 ,  F16J15/16 ,  F16J15/3244 ,  F16J15/3264

Abstract: A contamination guard for a machine is disclosed herein. The contamination guard includes an inner ring, a first annulus, a second annulus, and an impeller. The impeller is configured to promote intake of nearby air with contamination. The first annulus and second annulus form a passage that is configured to sling away air with contamination during operation of the machine.

公开(公告)号：US20210207712A1

公开(公告)日：2021-07-08

申请号：US16733101

申请日：2020-01-02

Applicant: Caterpillar Inc.

Inventor： John M. Mashak

IPC: F16J15/3248

Abstract: A contamination guard for a machine is disclosed herein. The contamination guard includes an inner ring, a first annulus, a second annulus, and an impeller. The impeller is configured to promote intake of nearby air with contamination. The first annulus and second annulus form a passage that is configured to sling away air with contamination during operation of the machine.

公开(公告)号：US20200173558A1

公开(公告)日：2020-06-04

申请号：US16209321

申请日：2018-12-04

Applicant: Caterpillar Inc.

Inventor： Christian Sabotta ,  John M. Mashak ,  Scott Rice ,  Tyler J. Davis ,  Nicholas O'Connor

IPC: F16J15/3236 ,  F16C33/74 ,  F16J15/3284 ,  F16C3/14

Abstract: A shaft seal for disposition between a shaft mounted for rotation and a bore includes a radial shaft-sealing sleeve assembly rotatably mounted with an outer carrier assembly. The radial shaft-sealing sleeve assembly includes a radial shaft-sealing sleeve and a first contact exclusion lip. The outer carrier assembly includes an outer carrier with a molded seal along having an outer radial section of the outer carrier and an elongated molded seal lip extending into a chamber formed between the radial shaft-sealing sleeve and the outer carrier, a second contact exclusion lip, and a main pumping lip. The first contact exclusion lip forming a dynamic seal against the outer carrier, and the second contact exclusion lip and main pumping lip forming dynamic seals against the radial shaft-sealing sleeve.