Internally coolable screw

Details Internally coolable screw Internally coolable screw

2005-09-13

2005-09-13

Gartenberg, Ehud (Department: 3746)

Power plants

Combustion products used as motive fluid

Combustion products generator

C060S798000, C411S395000

Reexamination Certificate

active

06941758

ABSTRACT:
A screw includes a head and a shank, and includes a coolant passage which has an inflow opening and an outflow opening. The cooling pasage does not pass axially through the entire head and shank. By avoiding a coolant flow which passes axially through the entire screw, especially effective utilization of a coolant is achieved, in particular by coolant which also flows on the outer surface of the screw.

REFERENCES:
patent: 126366 (1872-04-01), Wills
patent: 3408812 (1968-11-01), Stenger
patent: 3943703 (1976-03-01), Kronogard
patent: 4820097 (1989-04-01), Maeda et al.
patent: 6047552 (2000-04-01), Gross et al.
patent: 6588999 (2003-07-01), Kubler et al.
patent: 6604899 (2003-08-01), Kubler et al.
patent: 6718774 (2004-04-01), Razzell
patent: 0021161 (1981-01-01), None

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