Vacuum system for membrane fuel stabilization unit

Details Vacuum system for membrane fuel stabilization unit Vacuum system for membrane fuel stabilization unit

2005-12-14

2009-08-11

Cuff, Michael (Department: 3741)

Power plants

Combustion products used as motive fluid

With lubricators

C060S734000

Reexamination Certificate

active

07571596

ABSTRACT:
Oil system components for a turbine engine are used to provide a vacuum system for a fuel stabilization unit (FSU). A vacuum system pulls oxygen and other contaminants from fuel into a vacuum chamber within the FSU. The vacuum system pumps the discharge through a vacuum outlet in the FSU toward a vacuum pump. Due to the quality of vacuum required, a two-stage vacuum pump is used. A first stage vacuum pump is an oil system scavenge pump for the turbine engine and the second stage vacuum is provided by a second stage vacuum pump. The discharge flows from the vacuum chamber through to the second stage vacuum pump and is then added to the oil supply. The oil and discharge mixture is sent through an oil system de-oiler and a de-aerator to clean the oil supply prior to pumping the oil back through the oil system.

REFERENCES:
patent: 5615547 (1997-04-01), Beutin et al.
patent: 6709492 (2004-03-01), Spadaccini et al.
patent: 2005/0166597 (2005-08-01), Spadaccini et al.
patent: 2005/0217272 (2005-10-01), Sheridan et al.

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