APPARATUS FOR SEALING AN INTERNAL ENVIRONMENT OF A TURBOMACHINE

摘要

An apparatus for sealing an internal environment of a turbomachine includes a first chamber connectable in fluid communication with a high pressure environment of a turbomachine so that a working fluid can flow from the high pressure environment to the first chamber; and a second chamber in fluid communication with a lubrication circuit so that a lubricant can flow from the lubrication circuit to the second chamber. The first and second chambers are arranged in fluid communication with each other so that the working fluid can flow from the first to the second chamber. A return line for the working fluid is in fluid communication with the first chamber and connectable in fluid communication with a low pressure environment of the turbomachine so that the working fluid can flow from the first chamber to the low pressure environment. A pressure regulating device is included along the return line and is configured to provide a predetermined pressure drop.

主权项

1. An apparatus for sealing an internal environment of a turbomachine, comprising:
a first chamber connectable in fluid communication with a high pressure environment of a turbomachine configured so that a working fluid can flow from the high pressure environment to the first chamber; a second chamber in fluid communication with a lubrication circuit configured so that a lubricant can flow from the lubrication circuit to the second chamber, wherein the first and second chambers are arranged in fluid communication with each other so that the working fluid can flow from the first (2) to the second chamber; a return line for the working fluid in fluid communication with the first chamber and connectable in fluid communication with a low pressure environment of the turbomachine configured so that the working fluid can flow from the first chamber to the low pressure environment; and a pressure regulating device along the return line configured to provide a predetermined pressure drop.