Invention Application
- Patent Title: FACE SEAL ARRANGEMENT FOR REDUCED FORCE AND PRESSURE
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Application No.: US17747158Application Date: 2022-05-18
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Publication No.: US20220275760A1Publication Date: 2022-09-01
- Inventor: Jonathan Logan Miller , Colin D. Craig , Michael M. Davis
- Applicant: Raytheon Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: Raytheon Technologies Corporation
- Current Assignee: Raytheon Technologies Corporation
- Current Assignee Address: US CT Farmington
- Main IPC: F02C7/28
- IPC: F02C7/28 ; F02C3/04 ; F02C7/06 ; F02C7/36 ; B64D27/10 ; B64D35/02 ; F16J15/34

Abstract:
A bearing is mounted to a static structure outwardly of the shaft, and supporting the shaft. A bearing compartment is defined by face seal arrangements on each of two axial sides of a bearing. Each face seal arrangement includes a seal seat rotating with the shaft and a non-rotating sealing ring. The seal housing is exposed to high pressure air outward of the bearing compartment. A coil spring biases the seal housing towards the seal seat, such that the sealing face is biased into contact with the seal seat by a bias force including a net fluid force acting on the seal housing and the coil spring. The sealing face is defined by a contact portion contacting the seal seat and a feed portion recessed from the seal seat. The feed portion includes a plurality of circumferentially spaced feed slots fluidly connected to at least one annular groove.
Public/Granted literature
- US11624325B2 Face seal arrangement for reduced force and pressure Public/Granted day:2023-04-11
Information query
IPC分类: