Steam turbine with a rotary slide for controlling steam throughp

Details Steam turbine with a rotary slide for controlling steam throughp Steam turbine with a rotary slide for controlling steam throughp

1993-05-04

1995-01-24

Kwon, John T.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415148, 415150, 13762531, F04D 548, F01D 1712

Patent

active

053837630

ABSTRACT:
A steam turbine includes a rotary slide for controlling steam throughput, particularly in combination with a steam offtake. The rotary slide has control slits formed therein for that purpose. A stationary channel body has channel inlets formed therein. The control slits and the channel inlets cooperate with each other for increasingly opening and closing the channel inlets depending on a direction of rotation of the rotary slide at the time. The channel body has at least an adapter part in which the channel inlets are formed and a basic part having steam channels formed therein being required for conducting steam and in particular leading to nozzles. The channel inlets connect the control slits with the steam channels and are defined in accordance with an intended control characteristic.

REFERENCES:
patent: 707727 (1902-08-01), Schulz
patent: 793540 (1905-06-01), Purvis
patent: 1291322 (1919-01-01), Wiberg
patent: 1544285 (1925-06-01), Trotter
patent: 1894117 (1933-01-01), Pollard et al.
patent: 2184661 (1939-12-01), Bentley
patent: 2186952 (1940-01-01), Bloomberg
patent: 3209537 (1965-10-01), Mock
patent: 3589829 (1971-06-01), Schetinin
patent: 3669562 (1972-06-01), McNally et al.
"Zur Entwichlung von Niederdruck-Dampsteuer-organen derzeitiger Stand und Zullunttige Moglichkeiten", Berlin 1989 p. 77TT.
"Der Drehschieber als Regelorgan fur Entnahme-Dampfturbinen" Berlin, Maschinenbautechnik, 1966, pp. 185H.

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