Invention Grant
- Patent Title: Valve having improved spool geometry
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Application No.: US14678101Application Date: 2015-04-03
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Publication No.: US09599238B2Publication Date: 2017-03-21
- Inventor: Matthew J. Beschorner , Bryan A. Johnson , Hideki Nakajima
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Main IPC: F16K11/07
- IPC: F16K11/07

Abstract:
A spool is disclosed for use in a valve. The spool may have an elongated cylindrical body with a first end and a second end. The spool may also have a first land formed at the first end, a second land axially spaced apart from the first land, and a check element located between the first and second lands. The check element may have an outer diameter that is about 0.5-1% greater than an outer diameter of the second land.
Public/Granted literature
- US20160290516A1 VALVE HAVING IMPROVED SPOOL GEOMETRY Public/Granted day:2016-10-06
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