Title:
A VACUUM UNIT AND A VACUUM TOILET SYSTEM COMPRISING SUCH A UNIT
Document Type and Number:
WIPO Patent Application WO2000070156
Kind Code:
A9
Abstract:
A vacuum unit, particularly for a vacuum toilet system, includes first and second valves (4, 6), an ejector (10) connected to the first valve, and a piston valve (16) which is connected between the ejector and the second valve. The unit is characterised in that an overpressure and a vacuum can both be generated from the first valve (4) by controlling the state of the piston valve by the combination of the states of the first and the second valves. A vacuum toilet system is also described.
Inventors:
JOHANSSON HAKAN (SE)
Application Number:
PCT/SE2000/000900
Publication Date:
March 01, 2001
Filing Date:
May 05, 2000
Export Citation:
Assignee:
AVAC EJEKTOR AB (SE)
JOHANSSON HAKAN (SE)
JOHANSSON HAKAN (SE)
International Classes:
E03F1/00; (IPC1-7): E03F1/00
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