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Title: High temperature engine and seal

Abstract

This patent describes an apparatus for sealing a cylinder of the type having a closed end and an open end and an interior surface therebetween to a movable piston of the type having a face end and a rod end. The piston is movable over a specific length of the cylinder. This apparatus consists of an extension skirt located substantially on the perimeter of the rod end of the piston and extending away from the face end of the piston the skirt extension has an exterior surface in close proximity to the interior surface of the cylinder. An elastomeric pressure seal is retained in the interior surface of the cylinder, contacting the exterior surface of the extension skirt at a point spaced apart from the face end of the piston at least a distance adequate to prevent heat at the surface of the piston face end from being excessively transferred by conduction to the pressure seal.

Inventors:
Publication Date:
OSTI Identifier:
5899959
Patent Number(s):
US 4574590
Assignee:
NOV; EDB-86-101929
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 10 Sep 1984
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; INTERNAL COMBUSTION ENGINES; DESIGN; CYLINDERS; ELASTOMERS; PISTONS; PRESSURE EFFECTS; ENGINES; HEAT ENGINES; POLYMERS; 330100* - Internal Combustion Engines

Citation Formats

Jones, D. High temperature engine and seal. United States: N. p., 1986. Web.
Jones, D. High temperature engine and seal. United States.
Jones, D. 1986. "High temperature engine and seal". United States.
@article{osti_5899959,
title = {High temperature engine and seal},
author = {Jones, D},
abstractNote = {This patent describes an apparatus for sealing a cylinder of the type having a closed end and an open end and an interior surface therebetween to a movable piston of the type having a face end and a rod end. The piston is movable over a specific length of the cylinder. This apparatus consists of an extension skirt located substantially on the perimeter of the rod end of the piston and extending away from the face end of the piston the skirt extension has an exterior surface in close proximity to the interior surface of the cylinder. An elastomeric pressure seal is retained in the interior surface of the cylinder, contacting the exterior surface of the extension skirt at a point spaced apart from the face end of the piston at least a distance adequate to prevent heat at the surface of the piston face end from being excessively transferred by conduction to the pressure seal.},
doi = {},
url = {https://www.osti.gov/biblio/5899959}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {3}
}