Rotating fluid machine

Details Rotating fluid machine Rotating fluid machine

2004-03-04

2008-05-06

Kramer, Devon C. (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

C417S270000, C091S499000

Reexamination Certificate

active

07367783

ABSTRACT:
A rotary valve for switching supply passages, and discharge passages of high-temperature and high-pressure steam for a rotor rotatably supported at a casing is constructed by making a fixed side valve plate and a movable side valve plate abut to each other on a slide surface. A pressure chamber into which the high-temperature and high-pressure steam is introduced from the supply passage is opened to a mating surface of a valve body portion with the fixed side valve plate. The fixed side valve plate supported to float is pressed against the movable side valve plate with a pressing load generating in the pressure chamber to bring it into close contact with the slide surface. Leakage of the high-temperature and high-pressure steam from the pressure chamber is prevented by placing a V-packing inside the pressure chamber.

REFERENCES:
patent: 2378095 (1945-06-01), Payne
patent: 3312476 (1967-04-01), Otto et al.
patent: 3585901 (1971-06-01), Moon et al.
patent: 3823557 (1974-07-01), Van Wagenen
patent: 4426914 (1984-01-01), Kline
patent: 5562425 (1996-10-01), Kimura et al.
patent: 6012905 (2000-01-01), Takashima et al.
patent: 61-155610 (1986-09-01), None

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