skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Stirling engine or heat pump having an improved seal

Abstract

A Stirling Engine or Heat Pump having two relatively movable machine elements for power transmission purposes includes a hermetic seal bellows interposed between the elements for separating a working gas from a pressure compensating liquid that balances pressure across the bellows to reduce bellows stress and to assure long bellows life. The volume of pressure compensating liquid displaced due to relative movement between the machine elements is minimized by enclosing the compensating liquid within a region exposed to portions of both machine elements at one axial end of a slidable interface presented between them by a clearance seal having an effective diameter of the seal bellows. Pressure equalization across the bellows is achieved by a separate hermetically sealed compensator including a movable enclosed bellows. The interior of the compensator bellows is in communication with one side of the seal bellows, and its exterior is in communication with the remaining side of the seal bellows. A buffer gas or additional liquid region can be provided at the remaining axial end of the clearnace seal, along with valved arrangements for makeup of liquid leakage through the clearance seal.

Inventors:
 [1];  [2];  [3]
  1. (2802 S. Everett Pl., Kennewick, WA 99337)
  2. (616 Fuller, Richland, WA 99352)
  3. (67 Park St., Richland, WA 99352)
Publication Date:
OSTI Identifier:
865541
Patent Number(s):
US 4532766
Assignee:
White; Maurice A. (2802 S. Everett Pl., Kennewick, WA 99337); Riggle; Peter (616 Fuller, Richland, WA 99352); Emigh; Stuart G. (67 Park St., Richland, WA 99352) OSTI
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
stirling; engine; heat; pump; improved; seal; relatively; movable; machine; elements; power; transmission; purposes; hermetic; bellows; interposed; separating; gas; pressure; compensating; liquid; balances; reduce; stress; assure; life; volume; displaced; due; relative; movement; minimized; enclosing; region; exposed; portions; axial; slidable; interface; clearance; effective; diameter; equalization; achieved; separate; hermetically; sealed; compensator; including; enclosed; interior; communication; exterior; remaining; buffer; additional; provided; clearnace; valved; arrangements; makeup; leakage; buffer gas; power transmission; hermetically sealed; heat pump; stirling engine; relative movement; hermetic seal; relatively movable; improved seal; hermetically seal; pressure equalization; /60/62/277/

Citation Formats

White, Maurice A., Riggle, Peter, and Emigh, Stuart G. Stirling engine or heat pump having an improved seal. United States: N. p., 1985. Web.
White, Maurice A., Riggle, Peter, & Emigh, Stuart G. Stirling engine or heat pump having an improved seal. United States.
White, Maurice A., Riggle, Peter, and Emigh, Stuart G. Tue . "Stirling engine or heat pump having an improved seal". United States. doi:. https://www.osti.gov/servlets/purl/865541.
@article{osti_865541,
title = {Stirling engine or heat pump having an improved seal},
author = {White, Maurice A. and Riggle, Peter and Emigh, Stuart G.},
abstractNote = {A Stirling Engine or Heat Pump having two relatively movable machine elements for power transmission purposes includes a hermetic seal bellows interposed between the elements for separating a working gas from a pressure compensating liquid that balances pressure across the bellows to reduce bellows stress and to assure long bellows life. The volume of pressure compensating liquid displaced due to relative movement between the machine elements is minimized by enclosing the compensating liquid within a region exposed to portions of both machine elements at one axial end of a slidable interface presented between them by a clearance seal having an effective diameter of the seal bellows. Pressure equalization across the bellows is achieved by a separate hermetically sealed compensator including a movable enclosed bellows. The interior of the compensator bellows is in communication with one side of the seal bellows, and its exterior is in communication with the remaining side of the seal bellows. A buffer gas or additional liquid region can be provided at the remaining axial end of the clearnace seal, along with valved arrangements for makeup of liquid leakage through the clearance seal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1985},
month = {Tue Jan 01 00:00:00 EST 1985}
}

Patent:

Save / Share: