Heating – Heat generator heats gas or liquid material in a flow structure – Material heated by mixing with combustion products of generator
Patent
1993-04-09
1994-09-06
Dority, Carroll B.
Heating
Heat generator heats gas or liquid material in a flow structure
Material heated by mixing with combustion products of generator
431158, 431352, 34 96, F24H 100
Patent
active
053443144
ABSTRACT:
The pressure head needed to drive combustion air into the combustion region (46) of a heat gun 930) is imparted to the air by a compressor blades (36) driven by a turbine whose blades (32) are interposed in the fuel conduit that leads to the combustion region (46). The expansion of the gaseous fuel, which is obtained from a pressurized source, provides the power to impose the necessary pressure head. The turbine-compressor combination is efficient enough that it can extract from the fuel flow enough power to maintain the necessary pressure head not only on the combustion gas (A.sub.1), which flows through vents (44) in a manifold (43), but also on a larger volume of air (A.sub.2) delivered downstream of the combustion region (46) to dilute the combustion products and thereby cool them to the desired heat-gun output temperature.
REFERENCES:
patent: Re28665 (1975-12-01), Zagoroff
patent: 3525218 (1970-08-01), Buss
patent: 3779694 (1973-12-01), Zagoroff
patent: 3883290 (1975-05-01), Windelbandt
patent: 3917442 (1975-11-01), Zagoroff
patent: 4726767 (1988-02-01), Nakajima
patent: 5009592 (1991-04-01), Roldon et al.
H. Cohen et al., Gas Turbine Theory, Chapters 1 and 2, Longmans, Green and Co. Publishers, pp. 1-5 and 14-21.
Heitmann Arnold M.
Zagoroff Dimiter S.
Dority Carroll B.
Shrinkfast Marketing
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