Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1988-10-17
1990-03-20
Yuen, Henry C.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
432176, 432205, 432250, F27B 904
Patent
active
049097326
ABSTRACT:
A heat treatment furnace for treating metal workpieces has a substantially cylindrical housing. The housing surounds a heating chamber having cooling gas inlets and outlets connected to a cooling gas circulation system for circulating the gas. A plurality of nozzles forming the gas inlets are mounted on the housing on two diametrically opposite sides thereof. The two sets of nozzles simultaneously direct cooling gases towards an impact zone within the heating chamber such that cooling gases meet in the impact zone. The workpieces are also supported in the impact zone of the heating chamber. A plurality of vents forming the gas outlets are placed around the periphery of the impact zone and conduct the cooling gas out of the heating chamber and into a heat exchanger.
REFERENCES:
patent: 4490110 (1984-12-01), Jones
patent: 4493641 (1985-01-01), Hubbert
patent: 4516012 (1985-05-01), Smith et al.
patent: 4560348 (1985-12-01), Moller et al.
patent: 4596526 (1986-06-01), Soliman
patent: 4787844 (1988-11-01), Hemsath
patent: 4789333 (1988-12-01), Hemsath
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