Heat engine rod seal system

Details Heat engine rod seal system Heat engine rod seal system

1997-07-16

1999-08-17

Reichard, Lynne A.

Seal for a joint or juncture

Seal between relatively movable parts

Circumferential contact seal for other than piston

277902, 92 86, F16J 1518

Patent

active

059382074

ABSTRACT:
A rod seal system having a pair of rod seals that form a buffer area between a high pressure area containing working gas and a low pressure area of a heat engine, such as a Stirling cycle engine. A pump that becomes passively charged with working gas at relatively low pressure and which releases working gas at relatively high pressure when actuated is used to force working gas from the buffer area to the high pressure area through a conduit. The working gas may be hydrogen gas and the pump may be a metal hydride pump that is thermally actuated. The low pressure area may contain air and lubricant at atmospheric pressure. A system for separating the lubricant collecting within the buffer area and reintroducing the lubricant into the low pressure area can also be incorporated into the rod seal system.

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