Ejector device
OwnerJurgen Volkmanninventor
Life of this patent
Estimating the term…
Abstract
An ejector device which has at least two ejectors formed by a corresponding number of axially aligned nozzles of increasing cross section in the direction of flow. The device is formed as a series of modules, each module having a transverse wall and a section of housing. These housing sections abut each other to form chambers between these transverse walls. The transverse walls contain the aligned nozzles and also openings between the chambers with one way valves permitting fluid flow only in the direction of flow through the nozzles. Various arrangements are provided for connecting the housing sections together. A valve arrangement permits selectively eliminating the vacuum in the first chamber.
Claims12
An ejector device having at least three ejectors formed by a corresponding number of axially aligned, successive nozzles of increasing cross-section in the direction of flow, said device comprising:
- an outer, elongated housing,
- a plurality of spaced apart transverse walls extending across the housing to sub-divide it into at least three chambers, each transverse wall containing at least one of said nozzles, a one way valve in each transverse wall other than the first transverse wall permitting fluid flow only in the same direction of flow as through the nozzles, at least one of said chambers including a connecting opening passing radially through said housing,
- said device being formed of modules, each module containing one of said transverse walls and an axially extending section of the housing which abuts and connects with adjacent housing sections to form the said housing, said housing sections all being of uniform exterior circumferential size and shape with each other to be interchangable, such that the ejector device is constructed by the assembly of any number of said interchangable modules having selected axial lengths and nozzle constructions.
An ejector device having at least two ejectors formed by a corresponding number of axially aligned, successive nozzles of increasing cross-section in the direction of flow, said device comprising:
- an outer, elongated housing,
- a plurality of spaced apart transverse walls extending across the housing to sub-divide it into chambers, each transverse wall containing at least one of said nozzles, a one-way valve in each transverse wall permitting fluid flow only in the same direction of flow as through the nozzles
- said device being formed of modules, each module containing one of said transverse walls and an axially extending section of the housing which abuts and connects with adjacent housing sections to form the said housing,
- and including a valve means operatively connected to the inlet side of the first nozzle and also separately to the first chamber, a pressure reservoir connected to said valve, and means for connecting a pressurized supply fluid to the first nozzle, said valve being operable, upon cutting off of pressurized supply fluid to the first nozzle, to connect the first chamber via the valve with the said pressure reservoir.
Dependencies are inferred from the claim text.