Invention Grant
- Patent Title: Valve assembly
-
Application No.: US18058459Application Date: 2022-11-23
-
Publication No.: US11781672B1Publication Date: 2023-10-10
- Inventor: Christopher A. Murray
- Applicant: ROLLS-ROYCE plc
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE plc
- Current Assignee: ROLLS-ROYCE plc
- Current Assignee Address: GB London
- Agency: Oliff PLC
- Priority: GB 17158 2021.11.29
- Main IPC: F16K31/126
- IPC: F16K31/126 ; F16K1/12 ; F16K17/04 ; F02C7/28 ; F02C6/08 ; F04D27/02

Abstract:
A valve assembly includes a fluid flow passage, a valve seat, and an actuator assembly. The actuator assembly includes an actuator body stationary relative to the valve seat and a valve member moveable relative to the valve seat between a first position in which the valve member engages the valve seat, and a second position in which the valve member is remote from the valve seat. The valve member includes at least one orifice extending therethrough. The actuator assembly further includes a bellows attached to the valve member and to the actuator body. An interior surface of the bellows, the actuator body, and the valve member define a control chamber therebetween. An exterior surface of the bellows and the valve member define an outer volume therebetween such that the outer volume is around the control chamber. The at least one orifice fluidly communicates the control chamber with the outer volume.
Information query