公开(公告)号：US11946549B2

公开(公告)日：2024-04-02

申请号：US18155334

申请日：2023-01-17

申请人： Woodward, Inc.

发明人： Jimroy A. McCormack

IPC分类号： F16K15/06 ,  B67D7/36 ,  F02C9/26 ,  F16K15/04 ,  F16K17/04 ,  F16K17/30 ,  F16K17/34 ,  F16K47/00 ,  F16K47/02 ,  F23R3/28

CPC分类号： F16K15/063 ,  B67D7/36 ,  F02C9/263 ,  F16K15/044 ,  F16K15/065 ,  F16K17/04 ,  F16K17/0433 ,  F16K17/30 ,  F16K17/34 ,  F16K47/011 ,  F16K47/0111 ,  F16K47/023 ,  F23R3/28 ,  F05D2220/32 ,  Y10T137/7727 ,  Y10T137/7931

摘要： A fuel nozzle metering valve that includes a spool having an inlet port and an outlet flow port, and a retainer assembled to one end of the spool. A valve liner houses a portion of the spool. The spool is configured to move back and forth within the valve liner. The metering valve is biased in a closed position in which the outlet flow port is disposed entirely within the valve liner. The valve is opened when the spool slides within the valve liner such that some portion of the outlet flow port extends beyond an end of the valve liner. The retainer has a stepped portion configured to abut an end of the retainer at a fuel flow pressure below the expected maximum fuel flow pressure to be used in the fuel nozzle metering valve.