公开(公告)号：US20210308606A1

公开(公告)日：2021-10-07

申请号：US17351503

申请日：2021-06-18

Applicant: Caterpillar Inc.

Inventor： Philip C. SPENGLER ,  Jeffrey R. RIES ,  Hind ABI-AKAR

IPC: B01D35/143 ,  G01N33/28

Abstract: A sensing system for detecting degradation of a machine fluid is disclosed. The sensing system may comprise a tag having electrical contacts. The tag may be configured to transmit a wireless signal when the electrical contacts are in electrical communication. The sensing system may further comprise a dissolvable element separating the electrical contacts and obstructing electrical communication between the electrical contacts. The dissolvable element may be configured to dissolve and allow electrical communication between the electrical contacts when an acid content of the machine fluid reaches a level indicative of the degradation of the machine fluid.

公开(公告)号：US20200182207A1

公开(公告)日：2020-06-11

申请号：US16216443

申请日：2018-12-11

Applicant: Caterpillar Inc.

Inventor： Philip C. SPENGLER

IPC: F02M37/34 ,  B01D29/11 ,  B01D29/25 ,  F04B53/20

Abstract: A filter assembly includes a housing with an inlet and an outlet. The filter assembly also includes a tubular filter element located downstream of the inlet and upstream of the outlet and a sleeve element surrounding and blocking at least a portion of the filter element.