Adjustable expandable cryogenic piston and ring
Abstract
The operation of a reciprocating expansion engine for cryogenic refrigeration is improved by changing the pistons and rings so that the piston can be operated from outside the engine to vary the groove in which the piston ring is located. This causes the ring, which is of a flexible material, to be squeezed so that its contact with the wall is subject to external control. This control may be made manually or it may be made automatically in response to instruments that sense the amount of blow-by of the cryogenic fluid and adjust for an optimum blow-by.
- Inventors:
-
- Aurora, IL
- Woodridge, IL
- Issue Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- OSTI Identifier:
- 863674
- Patent Number(s):
- 4226169
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16J - PISTONS {
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
- DOE Contract Number:
- EY-76-C-02-3000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- adjustable; expandable; cryogenic; piston; operation; reciprocating; expansion; engine; refrigeration; improved; changing; pistons; rings; operated; outside; vary; groove; located; causes; flexible; material; squeezed; contact; wall; subject; external; control; manually; automatically; response; instruments; sense; amount; blow-by; fluid; adjust; optimum; cryogenic fluid; external control; expansion engine; flexible material; cryogenic refrigeration; /92/
Citation Formats
Mazur, Peter O, and Pallaver, Carl B. Adjustable expandable cryogenic piston and ring. United States: N. p., 1980.
Web.
Mazur, Peter O, & Pallaver, Carl B. Adjustable expandable cryogenic piston and ring. United States.
Mazur, Peter O, and Pallaver, Carl B. Tue .
"Adjustable expandable cryogenic piston and ring". United States. https://www.osti.gov/servlets/purl/863674.
@article{osti_863674,
title = {Adjustable expandable cryogenic piston and ring},
author = {Mazur, Peter O and Pallaver, Carl B},
abstractNote = {The operation of a reciprocating expansion engine for cryogenic refrigeration is improved by changing the pistons and rings so that the piston can be operated from outside the engine to vary the groove in which the piston ring is located. This causes the ring, which is of a flexible material, to be squeezed so that its contact with the wall is subject to external control. This control may be made manually or it may be made automatically in response to instruments that sense the amount of blow-by of the cryogenic fluid and adjust for an optimum blow-by.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1980},
month = {Tue Jan 01 00:00:00 EST 1980}
}
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