公开(公告)号：US07377110B2

公开(公告)日：2008-05-27

申请号：US10815125

申请日：2004-03-31

申请人： William G. Sheridan ,  J. Axel Glahn ,  James T. Thoresen ,  Larry W. Spires ,  Yuan Dong ,  Sean P. McCutchan

发明人： William G. Sheridan ,  J. Axel Glahn ,  James T. Thoresen ,  Larry W. Spires ,  Yuan Dong ,  Sean P. McCutchan

IPC分类号： F02C7/06

CPC分类号： F01D25/18 ,  B01D45/14 ,  F01D11/04 ,  F01M2013/0422 ,  F02C7/06 ,  F04D25/04 ,  F04D29/063 ,  F05D2240/14 ,  F05D2240/55 ,  F05D2240/70 ,  F05D2260/6022

摘要： A deoiler 26 for separating oil from air contaminated with the oil has at least one separator for separating the oil from the air and also has a source of suction for reducing air pressure at the source of the air. In an exemplary embodiment, the deoiler 26 creates the suction at a first operating condition, but acts as a restrictor at a second operating condition. A deoiling method according to the invention creates suction at a first operating condition to reduce the air pressure at the source of the oil-contaminated air, establishes a flow restriction at a second operating condition to pressurize the air source, and encourages oil to separate from the air at both operating conditions. When used as a component of a turbine engine lubrication system 22, the source of contaminated air may be a buffered bearing compartment 16. The inventive deoiler ensures a positive pressure difference across the bearing compartment seals 20 at the engine's idle power setting without requiring the idle setting to be undesirably high, and without requiring the use of buffer air whose pressure at higher engine power is high enough to be detrimental. In an exemplary embodiment, the deoiler pressurizes the bearing compartment at higher power settings to resist excessive buffer air infiltration into the bearing compartment.

摘要翻译： 用于从油污染的空气中分离油的除油器26具有至少一个用于将油与空气分离的分离器，并且还具有用于降低空气源的空气压力的抽吸源。 在示例性实施例中，解吸器26在第一操作条件下产生吸力，但在第二操作条件下用作限制器。 根据本发明的脱油方法在第一操作条件下产生吸入以减少在油污染空气源处的空气压力，在第二操作条件下建立流量限制以对空气源加压，并且鼓励油分离 两种运行状态下的空气。 当用作涡轮发动机润滑系统22的部件时，受污染的空气源可以是缓冲的承载室16。 本发明的除油器确保在发动机怠速功率设定下在轴承室密封件20上的正压力差，而不需要怠速设置不合需要地高，并且不需要使用在较高发动机功率下的压力足够高以致有害的缓冲空气 。 在一个示例性实施例中，该解吸器以较高的功率设置对承载室加压，以抵抗过大的缓冲空气渗入轴承室。