Fast closing valve
Abstract
A valve is provided for protecting the high vacuum of a particle accelera in the event of air leakage, wherein the valve provides an axially symmetrical passage to avoid disturbance of the partical beam during normal operation, and yet enables very rapid and tight closure of the beam-carrying pipe in the event of air leakage. The valve includes a ball member (30) which can rotate between a first position wherein a bore (32) in the member is aligned with the beam pipe, and a second position out of line with the pipe. A seal member (38) is flexibly sealed to the pipe, and has a seal end which can move tightly against the ball member after the bore has rotated out of line with the pipe, to thereby assure that the seal member does not retard rapid rotation of the ball valve member. The ball valve member can be rapidly rotated by a conductive arm (40) fixed to it and which is rotated by the discharge of a capacitor bank through coils (44, 45) located adjacent to the arm.
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 864828
- Patent Number(s):
- 4424825
- Application Number:
- 06/205,397
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- fast; closing; valve; provided; protecting; vacuum; particle; accelera; event; air; leakage; provides; axially; symmetrical; passage; avoid; disturbance; partical; beam; normal; operation; enables; rapid; tight; closure; beam-carrying; pipe; ball; 30; rotate; position; bore; 32; aligned; line; seal; 38; flexibly; sealed; move; tightly; rotated; assure; retard; rotation; rapidly; conductive; arm; 40; fixed; discharge; capacitor; bank; coils; 44; 45; located; adjacent; capacitor bank; beam pipe; normal operation; located adjacent; axially symmetric; ball valve; closing valve; valve provides; particle accelera; /137/250/251/
Citation Formats
Hanson, Clark L. Fast closing valve. United States: N. p., 1984.
Web.
Hanson, Clark L. Fast closing valve. United States.
Hanson, Clark L. Tue .
"Fast closing valve". United States. https://www.osti.gov/servlets/purl/864828.
@article{osti_864828,
title = {Fast closing valve},
author = {Hanson, Clark L},
abstractNote = {A valve is provided for protecting the high vacuum of a particle accelera in the event of air leakage, wherein the valve provides an axially symmetrical passage to avoid disturbance of the partical beam during normal operation, and yet enables very rapid and tight closure of the beam-carrying pipe in the event of air leakage. The valve includes a ball member (30) which can rotate between a first position wherein a bore (32) in the member is aligned with the beam pipe, and a second position out of line with the pipe. A seal member (38) is flexibly sealed to the pipe, and has a seal end which can move tightly against the ball member after the bore has rotated out of line with the pipe, to thereby assure that the seal member does not retard rapid rotation of the ball valve member. The ball valve member can be rapidly rotated by a conductive arm (40) fixed to it and which is rotated by the discharge of a capacitor bank through coils (44, 45) located adjacent to the arm.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 10 00:00:00 EST 1984},
month = {Tue Jan 10 00:00:00 EST 1984}
}