Valves and valve actuation – Mechanical movement actuator – Plural dissimilar mechanical movements
Patent
1986-11-17
1988-03-08
Chambers, A. Michael
Valves and valve actuation
Mechanical movement actuator
Plural dissimilar mechanical movements
251 88, 251267, F16K 3144
Patent
active
047295457
ABSTRACT:
A high pressure relief valve including a housing, an applied spring assembly, a valve seat with a seat opening, a valve poppet, a valve stem, a C-bracket, and an adjusting drive. The valve is intended for pressure relief of liquid hot-separator product which may contain solid components in the form of ash, catalyst, and unreacted coal components. The hot-separator product may be, in particular, a product of the hydrogenative liquefaction of coal. To obtain improved service life of the parts subject to wear, as well as to obtain good control characteristics and a tight valve closure, the valve has the following characteristics: (a) the throttle gap between the valve seat (10) and the valve poppet (11) is in the form of a surface gap between two broad-surfaced (or shallow-surfaced) bodies; (b) an excursion of the valve poppet (11) is produced by actuation of the adjusting drive (4); and (c) the excursion of the adjusting drive (4) is converted into rotary motion of a stem nut (3), which latter motion is converted to a lesser (i.e., geared down) prescribed linear motion of the valve stem (2) via an interior screw or worm part.
REFERENCES:
patent: 2050042 (1936-08-01), Davis
patent: 2866477 (1958-12-01), Bredtschneider et al.
patent: 2930571 (1960-03-01), Vogl
patent: 4047695 (1973-09-01), Cleveland et al.
patent: 4337788 (1982-07-01), Seger
patent: 4338961 (1982-07-01), Karpenko
patent: 4346728 (1982-08-01), Sulzer
Chambers A. Michael
Veba Oel Entwicklungs-Gesellschaft mbH
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