Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent
1985-04-04
1989-07-11
Look, Edward K.
Pumps
One fluid pumped by contact or entrainment with another
Jet
237 6, 237 8C, 417151, 417192, F04F 548
Patent
active
048466174
ABSTRACT:
A jet pump, in particular for hot-water heating systems or water-heating systems with return-flow mixing has a feeder head which is connected with a housing containing the receptor nozzle 13. The housing (7) contains a mixing tube (14) which is connected via a diffuser if needed with a second line connection (12), is coaxial with an injector nozzle (10) and adjoins the receptor nozzle (13); the mixing tube (14) also extends longitudinally through a chamber (22) of the housing in which at least a third line connection (18) and, if desired, a fourth line connection (19), directed respectively transversely to the mixing tube, discharges.
In order to attain, e.g., a substantially reduced operating noise and simultaneously increased efficiency, the discharge opening(s) (20, 21) of the third and, if needed, a fourth line connection (18, 19) are disposed spaced laterally apart from the injector nozzle (10); and a portion of housing chamber, which is embodied in the form of an elongated annular conduit (22) and surrounds the mixing tube (14) is located between the discharge openings (20, 21) of the third (and fourth) line connections (18, 19) and the injector nozzle (10).
REFERENCES:
patent: 333086 (1885-12-01), Strickland
patent: 885224 (1908-04-01), Buehler
patent: 1092570 (1914-04-01), Gold
patent: 1693101 (1928-11-01), Worthington
patent: 1779009 (1930-10-01), Negro
patent: 1987883 (1935-01-01), White et al.
patent: 2255904 (1941-09-01), Smith
patent: 2357266 (1944-08-01), Malcolm
patent: 2909127 (1959-02-01), Bradaska
patent: 4183722 (1980-01-01), Roeder
Look Edward K.
Mr. Helmut Balz
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