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US 9,435,462 B2Granted
Valve with latching return spring
AssigneePrecision Engine Control Corporation
InventorsWilliam Conn, Jason Bench
Life of this patent
Estimating the term…
Abstract
A valve according to an exemplary aspect of the present disclosure includes, among other things, a return spring. A latch mechanism includes a first magnet and a second magnet. One of the first and second magnets magnetically latches to the other first and second magnets in response to a control signal to minimize decompression of said return spring.
Claims20
A valve, comprising:
- a return spring;
- a latch mechanism including a first magnet and a second magnet, wherein one of said first and second magnets magnetically latches to the other said first and second magnets in response to a first control signal to minimize decompression of said return spring such that said return spring is compressed;
- and
- an engagement mechanism configured to move a valve drive shaft from an open position to a closed position in response to decompression of said return spring, wherein said valve drive shaft is free to move between said open position and said closed position independent of said return spring when said one of said first and second magnets magnetically latches to said other said first and second magnets.
1 more element
A valve comprising:
- a return spring;
- and
- a latch mechanism including a first magnet and a second magnet, wherein one of said first and second magnets magnetically latches to the other said first and second magnets in response to a first control signal to minimize decompression of said return spring such that said return spring is compressed;
- an engagement mechanism configured to move a valve drive shaft from an open position to a closed position in response to decompression of said return spring;
- wherein said engagement mechanism includes a valve disc mechanically attached to said valve drive shaft and an engagement pin attached to said return spring, said engagement pin configured to be partially received within a channel defined by said valve disc, and wherein said engagement mechanism includes a damper adjacent to said channel for receiving said engagement pin when said first and second magnets are unlatched.
2 more elements
A turbine engine comprising:
- a fluid source;
- a valve configured to regulate an amount of fluid flow from said fluid source;
- said valve including a return spring and a latch mechanism;
- said latch mechanism including a first magnet and a second magnet, wherein at least one of said first and second magnets is configured to receive a control signal, and wherein one of said first and second magnets magnetically latch to the other said first and second magnets in response to a first control signal to minimize decompression of said return spring such that said return spring is compressed;
- and
- an engagement mechanism configured to move a valve stem from an open position to a closed position in response to decompression of said return spring, wherein said valve stem is free to move between said open position and said closed position independent of said return spring when said one of said first and second magnets magnetically latches to said other said first second magnets.
3 more elements
Dependencies are inferred from the claim text.