Invention Grant
- Patent Title: Hydraulic system with a dynamic seal
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Application No.: US13947303Application Date: 2013-07-22
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Publication No.: US09651067B2Publication Date: 2017-05-16
- Inventor: Matthew J. Beschorner , Eric C. Hughes , Mikhail A. Sorokine , James A. Aardema , Thomas J. Hajek , Aleksandra M. Egelja
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agent M. Daniel Spillman
- Main IPC: F15B13/04
- IPC: F15B13/04 ; F15B19/00 ; F16K37/00 ; F15B20/00 ; F16K31/12 ; F15B13/043

Abstract:
A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. The valve arrangement may include a sleeve against which the dynamic seal is slidably engaged. The valve element may include a check stem. A pressure compensating system may be in communication with bores formed in with the valve element. A pressure system to monitor dynamic seal wear may be in communication with the control chamber of the valve arrangement.
Public/Granted literature
- US20140034135A1 HYDRAULIC SYSTEM WITH A DYNAMIC SEAL Public/Granted day:2014-02-06
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