公开(公告)号：US20140366964A1

公开(公告)日：2014-12-18

申请号：US13915783

申请日：2013-06-12

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Josh Kamp ,  Scott W. Simpson ,  John M. Dehais

IPC: F16K31/124

CPC classification number: F16K31/1245 ,  F02C9/18 ,  Y10T137/7759

Abstract: A bleed valve system includes a bleed valve, a valve regulator, a valve actuator and a reverse flow relief valve. The bleed valve is opened and closed to control a flow of bleed air from an upstream inlet to a downstream outlet. The valve regulator provides a servo pressure used to regulate the position of the bleed valve, and the valve actuator is mechanically connected to open/close the bleed valve based on the servo pressure provided by the valve regulator. The reverse flow relief valve compares a pressure upstream of the bleed valve to a pressure downstream of the bleed valve and in response to the downstream pressure exceeding the upstream pressure creates a fluid communication path between the servo pressure and an ambient pressure to decrease the servo pressure such that the bleed valve is closed.

Abstract translation: 泄放阀系统包括排放阀，阀调节器，阀致动器和逆流溢流阀。 泄放阀被打开和关闭以控制从上游入口到下游出口的排出气流。 阀调节器提供用于调节放气阀位置的伺服压力，阀门执行器机械连接，以根据阀调节器提供的伺服压力打开/关闭排气阀。 反向泄流阀将排放阀上游的压力与泄放阀下游的压力进行比较，并且响应于下游压力超过上游压力，在伺服压力和环境压力之间形成流体连通路径，以降低伺服压力 使得排气阀关闭。

公开(公告)号：US20140346379A1

公开(公告)日：2014-11-27

申请号：US13901124

申请日：2013-05-23

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Scott W. Simpson

IPC: F16K31/122

CPC classification number: F16K31/122 ,  F01D17/105 ,  F02C9/18 ,  F02C9/48 ,  F05D2270/10

Abstract: A valve assembly includes an outer housing having a first opening in fluid communication with a first fluid, a second opening in fluid communication with a second fluid, a third opening in fluid communication with a third fluid and a fourth opening in fluid communication with a fourth fluid. The valve assembly includes a piston configured to slide within the outer housing into a first position at which the third opening is blocked from fluid communication with the fourth opening based on a fluid pressure of the first fluid being greater than a fluid pressure of the fourth fluid. The piston is further configured to slide within the outer housing into a second position at which the third opening is in fluid communication with the fourth opening based on the fluid pressure of the second fluid being greater than the fluid pressure of the fourth fluid.

Abstract translation: 阀组件包括具有与第一流体流体连通的第一开口的外部壳体，与第二流体流体连通的第二开口，与第三流体流体连通的第三开口和与第四流体连通的第四开口 流体。 阀组件包括一个活塞，该活塞被构造成在外部壳体内滑动到第一位置，在该第一位置，基于第一流体的流体压力大于第四流体的流体压力，阻止第三开口与第四开口的流体连通 。 活塞还构造成在外壳内滑动到第二位置，在第二位置，第三开口基于第二流体的流体压力大于第四流体的流体压力与第四开口流体连通。