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Title: Dynamically balanced, hydraulically driven compressor/pump apparatus for resonant free piston Stirling engines

Abstract

A compressor, pump, or alternator apparatus is designed for use with a resonant free piston Stirling engine so as to isolate apparatus fluid from the periodically pressurized working fluid of the Stirling engine. The apparatus housing has a first side closed by a power coupling flexible diaphragm (the engine working member) and a second side closed by a flexible diaphragm gas spring. A reciprocally movable piston is disposed in a transverse cylinder in the housing and moves substantially at right angles relative to the flexible diaphragms. An incompressible fluid fills the housing which is divided into two separate chambers by suitable ports. One chamber provides fluid coupling between the power diaphragm of the RFPSE and the piston and the second chamber provides fluid coupling between the gas spring diaphragm and the opposite side of the piston. The working members of a gas compressor, pump, or alternator are driven by the piston. Sealing and wearing parts of the apparatus are mounted at the external ends of the transverse cylinder in a double acting arrangement for accessibility. An annular counterweight is mounted externally of the reciprocally movable piston and is driven by incompressible fluid coupling in a direction opposite to the pistonmore » so as to damp out transverse vibrations.« less

Inventors:
 [1]
  1. (North Troy, NY)
Publication Date:
OSTI Identifier:
865020
Patent Number(s):
US 4450685
Application Number:
06/384,304
Assignee:
Mechanical Technology Incorporated (Latham, NY) OSTI
DOE Contract Number:
86X-61618C
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
dynamically; balanced; hydraulically; driven; compressor; pump; apparatus; resonant; free; piston; stirling; engines; alternator; designed; engine; isolate; fluid; periodically; pressurized; housing; closed; power; coupling; flexible; diaphragm; gas; spring; reciprocally; movable; disposed; transverse; cylinder; moves; substantially; angles; relative; diaphragms; incompressible; fills; divided; separate; chambers; suitable; ports; chamber; provides; rfpse; opposite; sealing; wearing; mounted; external; double; acting; arrangement; accessibility; annular; counterweight; externally; direction; damp; vibrations; separate chambers; compressible fluid; piston stirling; chamber provides; gas compressor; gas spring; pump apparatus; stirling engine; free piston; direction opposite; double acting; resonant free; stirling engines; chamber provide; flexible diaphragm; provides fluid; hydraulically driven; dynamically balanced; /60/62/417/

Citation Formats

Corey, John A. Dynamically balanced, hydraulically driven compressor/pump apparatus for resonant free piston Stirling engines. United States: N. p., 1984. Web.
Corey, John A. Dynamically balanced, hydraulically driven compressor/pump apparatus for resonant free piston Stirling engines. United States.
Corey, John A. Tue . "Dynamically balanced, hydraulically driven compressor/pump apparatus for resonant free piston Stirling engines". United States. doi:. https://www.osti.gov/servlets/purl/865020.
@article{osti_865020,
title = {Dynamically balanced, hydraulically driven compressor/pump apparatus for resonant free piston Stirling engines},
author = {Corey, John A.},
abstractNote = {A compressor, pump, or alternator apparatus is designed for use with a resonant free piston Stirling engine so as to isolate apparatus fluid from the periodically pressurized working fluid of the Stirling engine. The apparatus housing has a first side closed by a power coupling flexible diaphragm (the engine working member) and a second side closed by a flexible diaphragm gas spring. A reciprocally movable piston is disposed in a transverse cylinder in the housing and moves substantially at right angles relative to the flexible diaphragms. An incompressible fluid fills the housing which is divided into two separate chambers by suitable ports. One chamber provides fluid coupling between the power diaphragm of the RFPSE and the piston and the second chamber provides fluid coupling between the gas spring diaphragm and the opposite side of the piston. The working members of a gas compressor, pump, or alternator are driven by the piston. Sealing and wearing parts of the apparatus are mounted at the external ends of the transverse cylinder in a double acting arrangement for accessibility. An annular counterweight is mounted externally of the reciprocally movable piston and is driven by incompressible fluid coupling in a direction opposite to the piston so as to damp out transverse vibrations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 29 00:00:00 EDT 1984},
month = {Tue May 29 00:00:00 EDT 1984}
}

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