Inventors:
Adam L. Brugnoli - Pennsburg PA, US
Phillip B. DeMarra - Narvon PA, US
Todd A. Becker - Sinking Springs PA, US
Daniel Gonzalez - East Earl PA, US
Andrew J. Dillow - Honey Brook PA, US
Alan C. Cinquegrana - Brick NJ, US
Assignee:
R-V Industries, Inc - Honey Brook PA
International Classification:
F04B 23/08, A61L 2/00, A61L 9/00
Abstract:
In a vacuum unit for use in drawing a vacuum on a steam sterilizer, a pump circulates water through an ejector and a reservoir. Fresh water is injected at the pump inlet to maintain a low temperature in the ejector so that it can operate efficiently. Excess water is taken from a location adjacent the bottom of the reservoir through an internal dip tube, and passed through a U-shaped conduit that serves as a condensate trap. To maintain the water discharge temperature below a predetermined level, fresh water is injected into the U-shaped conduit through a valve controlled by a temperature sensor downstream from the water injection point.