Gas extraction apparatus for thermal installations

Details Gas extraction apparatus for thermal installations Gas extraction apparatus for thermal installations

1975-05-23

1977-04-26

Freeh, William L.

Pumps

One fluid pumped by contact or entrainment with another

Jet pump with motive fluid generating pump

417155, 417197, 417198, F04F 520

Patent

active

040198340

ABSTRACT:
Hot gases from a furnace or the like are fed to a core or inner tube that terminates at its downstream end at the upstream end of a larger-diameter mixing tube. A jacket surrounding the inner tube is formed with a plurality of compartments which are of increasing cross-sectional area toward the downstream end of the inner tube. A blower is connected to the upstream ends of the compartments or branches or the jacket and the downstream ends of these compartments are connected to a annular nozzle defined between the outside of the inner tube and the inside of the mixing tube. Thus air in the compartments is heated by the hot gases in the inner tube and expand so as to issue from the nozzle at high speed and entrain the gases in the inner tube in jet-pump fashion.

REFERENCES:
patent: 629019 (1899-07-01), Thomas
patent: 705713 (1902-07-01), Smith
patent: 1942048 (1934-01-01), Clark
patent: 2164880 (1939-07-01), Merkt

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