Invention Grant
- Patent Title: Electrohydraulic valve having a solenoid actuator plunger with an armature and a bushing
- Patent Title (中): 电液阀具有带电枢和套管的螺线管致动器柱塞
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Application No.: US12103263Application Date: 2008-04-15
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Publication No.: US07992839B2Publication Date: 2011-08-09
- Inventor: Robert Scott Nordstrom , Kirt Nathaniel Stephens , Edward Aloysius Flynn
- Applicant: Robert Scott Nordstrom , Kirt Nathaniel Stephens , Edward Aloysius Flynn
- Applicant Address: US WI Waukesha
- Assignee: HUSCO Automotive Holdings LLC
- Current Assignee: HUSCO Automotive Holdings LLC
- Current Assignee Address: US WI Waukesha
- Agency: Quarles & Brady LLP
- Agent George E. Haas
- Main IPC: F16K31/02
- IPC: F16K31/02

Abstract:
A solenoid operated valve has a valve body with a plurality of ports and a spool slideable within the valve body to interconnect the ports in different combinations. An actuator includes a solenoid coil assembly and an armature slideably received in the solenoid coil assembly. A bushing has a cylindrical body from which a push member projects into engagement with the spool and from which a coupling shaft extends into an aperture in the armature. A passage is provided in the bushing to allow fluid to flow between opposites sides as the bushing slides in the solenoid coil assembly. The cylindrical body rides in the solenoid coil assembly and has a plurality of external grooves that enable fluid to pass around the body.
Public/Granted literature
- US20090256092A1 ELECTROHYDRAULIC VALVE HAVING A SOLENOID ACTUATOR PLUNGER WITH AN ARMATURE AND A BUSHING Public/Granted day:2009-10-15
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