Sealing device for a piston rod of a stirling engine

Details Sealing device for a piston rod of a stirling engine Sealing device for a piston rod of a stirling engine

1990-07-13

1991-10-15

Look, Edward K.

Expansible chamber devices

With force exerting means to move fluid from non-working...

92 82, 277 15, 277 19, 60517, F15B 2104

Patent

active

050564196

ABSTRACT:
The present invention relates to a sealing device provided between a piston rod of a Stirling cycle engine and a variable volume chamber. The sealing device is provided with an arrangement so as to equalize pressures between a seal chamber and the variable volume chamber of the Stirling cycle engine. By equalizing pressures between the respective spaces, an overpressure is prevented which would otherwise distort the seal and permit oil to be carried into the working volume of the Stirling cycle engine.

REFERENCES:
patent: 3293994 (1966-12-01), Napolitano
patent: 3667348 (1972-06-01), Neelson
patent: 3810634 (1974-05-01), Hakansson
patent: 3848877 (1974-11-01), Bengtsson et al.
patent: 3943717 (1976-03-01), Schexnayder
patent: 4083566 (1978-04-01), Bengtsson
patent: 4093239 (1978-06-01), Sugahara
patent: 4206928 (1980-06-01), Asano
patent: 4564202 (1986-01-01), Momose
patent: 4597322 (1986-07-01), Garnjost
patent: 4769992 (1988-09-01), Harada et al.

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